Release: v4.2.0

Merge branch 'translations'
Fix pt translations.
2023-01-03 23:10:05 +01:00 · 2023-01-03 23:04:44 +01:00 · 2023-01-03 23:04:37 +01:00 · 2023-01-02 23:37:38 +01:00 · 2022-12-30 16:22:46 +01:00 · 2022-12-30 16:11:22 +01:00
170 changed files with 3998 additions and 2297 deletions
@@ -1,3 +1,6 @@
+# We have flaky test results due to performance limitations in Github Actions.
+# Happens too often nowadays; See https://github.com/OpenTracksApp/OpenTracks/issues/1409
+
 #https://github.com/marketplace/actions/android-emulator-runner
 name: Test
 on:
@@ -23,7 +26,7 @@ jobs:
          java-version: '11'

      - name: run tests
-        uses: reactivecircus/android-emulator-runner@v2.25.0
+        uses: reactivecircus/android-emulator-runner@v2.26.0
        with:
          api-level: ${{ matrix.api-level }}
          target: ${{ matrix.target }}
@@ -40,8 +40,8 @@ _OpenTracks_ is a sport tracking application that completely respects your priva
    </tr>
 </table>

-<a href="https://weblate.bubu1.eu/engage/OpenTracks/">
-	<img src="https://weblate.bubu1.eu/widgets/OpenTracks/-/opentracks/horizontal-auto.svg" alt="Translation status" />
+<a href="https://hosted.weblate.org/engage/opentracks/">
+  <img src="https://hosted.weblate.org/widgets/opentracks/-/horizontal-auto.svg" alt="Translation status" />
 </a>

 ## Screenshots
@@ -64,19 +64,19 @@ _OpenTracks_ is a sport tracking application that completely respects your priva
 * __Voice announcements__
 * __Photos and Markers:__ mark interesting locations while tracking
 * __Export:__
-  * export tracks either as KMZ (incl. photos), KML, or GPX
-  * export automatically after each recording (e.g., to sync via [Nextcloud](https://nextcloud.com/))
-  * avoid duplication: each exported file contain a random unique identifier (i.e., `opentracks:trackid`)
+    * export tracks either as [KMZ 2.3](https://docs.opengeospatial.org/is/12-007r2/12-007r2.html) (incl. photos), [KML 2.3](https://docs.opengeospatial.org/is/12-007r2/12-007r2.html), or [GPX 1.1](https://www.topografix.com/GPX/1/1/)
+    * export automatically after each recording (e.g., to sync via [Nextcloud](https://nextcloud.com/))
+    * avoid duplication: each exported file contain a random unique identifier (i.e., `opentracks:trackid`)
 * __Altitude:__
-  * gain/loss via barometric sensor (if present)
-  * shown in EGM2008 (above mean sea level); exported as WGS84
+    * gain/loss via barometric sensor (if present)
+    * shown in EGM2008 (above mean sea level); exported as WGS84
 * __Bluetooth LE sensors:__
-  * heart rate
-  * cycling: speed and distance
-  * cycling: cadence
-  * cycling: power meter
-  * running: speed and cadence
-  * support for BLE sensor training only (i.e., without GPS) for indoor training
+    * heart rate
+    * cycling: speed and distance
+    * cycling: cadence
+    * cycling: power meter
+    * running: speed and cadence
+    * support for BLE sensor training only (i.e., without GPS) for indoor training

  An overview of tested sensors: [README_TESTED_SENSORS.md](README_TESTED_SENSORS.md)

@@ -121,7 +121,15 @@ For testing via adb: `adb shell am start -e someParameter someValue -n "package/

 The Public API is disabled by default to protect the user's privacy, but it can easily be enabled in the settings.

-__IMPORTANT__: triggering `StartRecording` does not check if Android permissions (location or Bluetooth) were granted. If they are not granted, nothing will be recorded.
+## File formats compatibility with open-source software
+
+|                                                      | [GPX 1.1](https://www.topografix.com/GPX/1/1/) | [KML 2.3](https://docs.opengeospatial.org/is/12-007r2/12-007r2.html) | [KMZ 2.3](https://docs.opengeospatial.org/is/12-007r2/12-007r2.html) |
+|------------------------------------------------------|------------------------------------------------|----------------------------------------------------------------------|----------------------------------------------------------------------|
+| [OpenLayers 7.1.0](https://openlayers.org/)          | ?                                              | [no](https://github.com/openlayers/openlayers/issues/14104)          | [no](https://github.com/openlayers/openlayers/issues/14104)          |
+| [Golden Cheetah 3.5](https://www.goldencheetah.org/) | ?                                              | [no](https://github.com/GoldenCheetah/GoldenCheetah/issues/4271)     | [no](https://github.com/GoldenCheetah/GoldenCheetah/issues/4271)     |
+| [GpxPod](https://apps.nextcloud.com/apps/gpxpod)     | ?                                              | ?                                                                    | ?                                                                    |
+| [OsmAnd](https://github.com/osmandapp/OsmAnd)        | ?                                              | [no](https://github.com/osmandapp/OsmAnd/issues/15271)               | [no](https://github.com/osmandapp/OsmAnd/issues/15271)               |
+| [FitTrackee](https://github.com/SamR1/FitTrackee)    | yes                                            | n/a                                                                  | n/a                                                                  |

 ## Dashboard API (incl. map)

@@ -20,7 +20,7 @@ Usually, it takes two days before the update is published (build, signed, and pu
 The recent build activity can be found [here](https://f-droid.org/wiki/index.php?title=Special:RecentChanges&days=7&from=&hidebots=0&hideanons=1&hideliu=1&limit=500)

 ## Google Play Store
-Application id: de.dennisguse.opentracks.playstore
+Application id: `de.dennisguse.opentracks.playstore`

 Requirement: `gem install fastlane`

@@ -35,4 +35,6 @@ Supported languages: https://support.google.com/googleplay/android-developer/tab

 ## Translations (localization)

-Translations of the OpenTracks are handled in Weblate: [https://weblate.bubu1.eu/projects/OpenTracks/](https://weblate.bubu1.eu/projects/OpenTracks/).
+Translations of the OpenTracks are handled in
+Weblate: [https://hosted.weblate.org/projects/opentracks/](https://hosted.weblate.org/projects/opentracks)
+.
@@ -2,7 +2,7 @@

 ## 0x180D: Heartrate Service

-* Decathlon|Geonaute|Kalenji Dual HRM Belt
+* Decathlon/Geonaute/Kalenji Dual HRM Belt
 * moofit heart rate monitor
 * Polar H7
 * Polar H10
@@ -38,13 +38,13 @@ However, often only one value is provided.

 We only support _Instantaneous Power_.

-For cycling:
+For cycling (incl. cadence):
 * Assioma Duo Powermeter
 * Elite drivo II
 * QUARQ Red DZero Powermeter
 * Tacx Satori Smart
 * Wahoo Kickr v4.0
-* Rotor 2INpower DM Road (only supports power measurement, cadence measurement is propietary @ firmware v1.061)
+* Rotor 2INpower DM Road (only supports power measurement, cadence measurement is proprietary @ firmware v1.061)

 For running:
 * Stryd
@@ -63,12 +63,12 @@ There are smartphones that have a barometric sensor that OpenTracks uses to comp

 In our tests there are smartphones whose barometric sensor works well and others don't. Here is a list of the smartphones tested:

-|Brand|Model|Android Version|Tests|
-|-----|-----|---------------|-----------|
-|Google|Pixel|LineageOS 17.1|Ok|
-|Google|Pixel 2 XL|LineageOS 17.1|Ok on the bike handlebars but it fails when I carry it in a pocket or backpack|
-|Google|Pixel 3|Android 11|Failure|
-|Google|Pixel 3a|Android 11|Ok|
-|Google|Pixel 3a|Lineage 18.1|Ok|
-|Google|Pixel 4a|Android 11|Ok|
-|Sony|Xperia XZ1 Compact|LineageOS 16.1|Failure|
+| Brand  | Model              | Android Version | Tests                                                                          |
+|--------|--------------------|-----------------|--------------------------------------------------------------------------------|
+| Google | Pixel              | LineageOS 17.1  | Ok                                                                             |
+| Google | Pixel 2 XL         | LineageOS 17.1  | Ok on the bike handlebars but it fails when I carry it in a pocket or backpack |
+| Google | Pixel 3            | Android 11      | Failure                                                                        |
+| Google | Pixel 3a           | Android 11      | Ok                                                                             |
+| Google | Pixel 3a           | Lineage 18.1    | Ok                                                                             |
+| Google | Pixel 4a           | Android 11      | Ok                                                                             |
+| Sony   | Xperia XZ1 Compact | LineageOS 16.1  | Failure                                                                        |
@@ -6,7 +6,7 @@ buildscript {
        mavenCentral()
    }
    dependencies {
-        classpath 'com.android.tools.build:gradle:7.3.0-rc01'
+        classpath 'com.android.tools.build:gradle:7.3.1'
    }
 }

@@ -59,8 +59,8 @@ android {

    defaultConfig {
        applicationId "de.dennisguse.opentracks"
-        versionCode 5017
-        versionName "v4.0.8"
+        versionCode 5119
+        versionName "v4.2.0"

        buildConfigField "String", "VERSION_NAME_FULL", "\"${getVersionName()}\""

@@ -122,21 +122,20 @@ android {
 dependencies {
    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.2.2'

-    implementation 'androidx.appcompat:appcompat:1.5.0'
-    implementation 'androidx.lifecycle:lifecycle-viewmodel:2.5.1'
-    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1'
+    implementation 'androidx.appcompat:appcompat:1.6.0-rc01'
    implementation 'androidx.preference:preference:1.2.0'
    implementation 'androidx.documentfile:documentfile:1.0.1'
-    implementation 'com.google.android.material:material:1.6.1'
+    implementation 'androidx.gridlayout:gridlayout:1.0.0'
+    implementation 'com.google.android.material:material:1.7.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
    implementation 'androidx.core:core-splashscreen:1.0.0'

-    androidTestImplementation 'androidx.test:core:1.4.0'
-    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
-    androidTestImplementation 'androidx.test:rules:1.4.0'
-    androidTestImplementation 'androidx.test:runner:1.4.0'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
-    androidTestImplementation 'org.mockito:mockito-android:4.7.0'
+    androidTestImplementation 'androidx.test:core:1.5.0'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.4'
+    androidTestImplementation 'androidx.test:rules:1.5.0'
+    androidTestImplementation 'androidx.test:runner:1.5.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.0'
+    androidTestImplementation 'org.mockito:mockito-android:4.11.0'

-    androidTestUtil 'androidx.test:orchestrator:1.4.1'
+    androidTestUtil 'androidx.test:orchestrator:1.4.2'
 }
@@ -7,5 +7,5 @@ Changes:
 Bugfix:
 - Speech announcements use MAY_DUCK (again)
 - ChartView shows markers (again)
- Fixed landscape layout of TrackListActivity
+- Fixed landscape recordingLayout of TrackListActivity
 - Request legacy file API behavior (necessary for Android 10)
@@ -0,0 +1,8 @@
+v4.1.0: OpenTracks
+
+Changes:
+- Export KML/KMZ version 2.3 only (was 2.2)
+- For crank-based powermeters: fetch cadence
+
+Bugfix:
+- Workaround for crash on "import all"
@@ -0,0 +1,7 @@
+v4.1.1: OpenTracks
+
+Changes:
+- Add introduction screen (show once)
+
+Bugfix:
+- Do not crash if no GPS device is present
@@ -0,0 +1,11 @@
+v4.1.2: OpenTracks
+
+Changes:
+- Voice announcements only use on decimal for distance
+
+Bugfix:
+- Crash when stopping (race condition)
+
+Developer:
+- Github actions: disabled instrumentation testing (too slow)
+- Tests are done with only fake GPS data
@@ -0,0 +1,8 @@
+v4.2.0: OpenTracks
+
+Changes:
+- Show heartrate zone information
+
+Developer:
+- Migrated to hosted.weblate.org
+- Recording UI uses Views directly
@@ -0,0 +1,16 @@
+v3.18.6: OpenTracks
+
+Athruithe:
+- "Taispeáin ar léarscáil" - feidhmiúlacht trí KML in ionad KMZ
+- Ní chuimsíonn fógra gutha ainm na haipe
+- Agus é ag taifeadadh: déantar gnóthachan/caillteanas ingearchló a nuashonrú gach soicind
+- Tuairiscí an tsiopa aistrithe
+
+Maoláin:
+- Aistriúcháin fógartha gutha seasta neamhbhailí
+
+Forbróir:
+- ceadanna Android12 (BLUETOOTH_SCAN)
+- ceadanna Android12 (ACCESS_COARSE_LOCATION)
+- Ag dearbhú do Trackpoints (tástáil)
+- Aistriúcháin neamhúsáidte bainte
@@ -0,0 +1,8 @@
+v3.19.1: OpenTracks
+
+Athruithe:
+- Aistriúcháin nuashonraithe.
+
+Ceartúchán Bug:
+- Easpórtáil Gach Rianta fabht seasta.
+- Lean bug Track socraithe.
@@ -0,0 +1,7 @@
+v3.20.0: OpenTracks
+
+Athruithe:
+- Agus tú ag taifeadadh: tá UI staitisticí inchumraithe anois
+
+Ceartúchán Bug:
+- Níor tugadh aird ar athrú ainm/catagóir an traic le linn an taifeadta (a tugadh isteach i v3.19.0)
@@ -0,0 +1,6 @@
+v3.20.1: OpenTracks
+
+Athruithe:
+- Is féidir fógraí a úsáid anois de réir achair agus ama
+- Bíp fógraí mura bhfuil aon bhogearraí Téacs-go-hurlabhra suiteáilte
+- Baineadh minicíocht oiriúnaitheach suíomh GPS
@@ -0,0 +1,11 @@
+v3.22.0: OpenTracks
+
+Athruithe:
+- Ní stórálfar láithreacha ach amháin má thaistilítear > an t-eatramh faid a thaifeadtar
+   (feidhmiúlacht fágtha bainte den bhrath díomhaoin/neamhdhíomhaoin)
+- Is féidir Chomhéadain a chumrú chun clog a thaispeáint
+- Is féidir luas díomhaoin a chumrú anois
+
+Ceartúchán Bug:
+- Eatraimh: tuairteála nuair a stóráiltear gnóthachan ach ní caillteanas
+- Agus tú ag taifeadadh: seachain tuairteáil agus fógraí gutha á ndíchumasú
@@ -0,0 +1,10 @@
+v3.23.0: OpenTracks
+
+Athruithe:
+- Cuireadh próifílí Chomhéadain leis
+- Staitisticí comhiomlánaithe le haghaidh rianta roghnaithe
+- TrackPoints díomhaoin/neamhdhomhaoin athfhorfheidhmithe de réir mar a stop an t-am bogtha ag obair (tugtha isteach in v3.22.0)
+
+Ceartúcháin fhabht:
+- Braiteoirí BLE: sonraí soiléire maidir le dínascadh
+- Ní mór an t-easpórtáil uathoibríoch a cheadú go fóill
@@ -0,0 +1,11 @@
+v3.25.0: OpenTracks
+
+Athruithe:
+- Tá GPS roghnach anois lena n-áirítear. Rabhadh GPS díchumasaithe
+- PublicAPI: is féidir le feidhmchláir eile sonraí taifeadta a fháil anois má thosaíonn siad ar thaifeadadh (curtha i bhfeidhm do Gadgetbridge)
+- Gníomhaíochtaí nua: snámh, snámh oscailte, agus workout
+- Baineadh feidhmiúlacht pic sciar
+
+Ceartúchán Bug:
+- Chomhéadain: luas / airde nuair a léim idir 0.0 agus an luach iarbhír
+- Is féidir rianta le emojis a onnmhairiú
@@ -0,0 +1,5 @@
+v3.25.1: OpenTracks
+
+Ceartúchán Bug:
+- Easpórtáil uathoibríoch: tá súil againn teipeanna ciúine a chosc
+- Easpórtáil uathoibríoch: cosc tuairteála
@@ -0,0 +1,8 @@
+v3.26.0: OpenTracks
+
+Athruithe:
+- Is féidir fógraí gutha a chumrú
+- Fógraí gutha faoi ráta croí
+
+Ceartúchán Bug:
+- Tuairteála mar gheall ar riocht cine
@@ -0,0 +1,4 @@
+v3.26.1: OpenTracks
+
+Ceartúchán Bug:
+- Níor sháraigh barra gníomhaíochta comhthéacsúla an barra uirlisí i dtéama na hoíche.
@@ -0,0 +1,13 @@
+v4.0.1: OpenTracks
+
+Athruithe:
+- Is féidir fógraí gutha a chumrú anois
+- Folaíonn mód lánscáileáin anois barra nascleanúna Android freisin
+- Ba cheart go mbeadh nasc le braiteoirí BLE níos tapúla anois
+- Ceadaigh socruithe a athshocrú agus tú ag taifeadadh
+- Ceadaigh socruithe iompórtála/easpórtála a athrú agus tú ag taifeadadh
+- KML/KMZ: ná húsáid deilbhíní le luchtú ó Google
+
+Ceartúchán Bug:
+- Oibríonn TrackStoppedActivity ar scáileáin níos lú anois
+- Iarratas ar cheadanna ar an rianliosta
@@ -0,0 +1,10 @@
+v4. 0. 2: OpenTracks
+
+Athruithe:
+- - Agus muirmhíle 
+- Is féidir socruithe a athshocrú agus taifeadadh á dhéanamh
+
+Ceartúcháin:
+- Fógra gutha slánú
+- Cairt: bhí ingearchló smoothed weirdly
+- Ní raibh easpórtáil ag seiceáil an bhfuil an comhad ann
@@ -0,0 +1,8 @@
+v4.0. 3: OpenTracks
+
+Athruithe:
+ Sonraíocht: Max. luas mar a thuairiscigh braiteoir (GPS nó BLE)
+
+Ceartúcháin:
+- Cosc ar thuairteáil mura bhfuil Painéal Na Nionstraimí OSM suiteáilte
+- Easpórtáil rian GPX: ná heaspórtáil deighleáin an amhráin folamh
@@ -0,0 +1,13 @@
+v4. 0. 4: OpenTracks
+
+Athruithe:
+- Stóráil sonraí braiteoir BLE fiú gan achar (gach 10s)
+- PUBLIC API: ceadaíonn leagan ainm, catagóir, agus cur síos
+
+Ceartúcháin:
+- Tuairteála nuair a ghlacadh pictiúr agus rothlach an fón
+- 
+
+Forbróir:
+ Sprioc-SDK 33
+- Baraiméadar úsáideann eatramh de 5s
@@ -0,0 +1,7 @@
+v4. 0. 5: OpenTracks
+
+Athruithe:
+- - PlayStore release faigh lógó eile
+
+Ceartúcháin:
+- Taispeánann liosta eatramh " - " mura bhfuil gnóthachan/caillteanas i láthair
@@ -0,0 +1,5 @@
+v4.0. 6: OpenTracks 
+
+Ceartúcháin:
+- Egm2008 fhritháireamh mícheart ríomh le haghaidh domhanfhad diúltach
+- - Crashed API poiblí má Bhí Rianta Oscailte sa chúlra (26 AIBREÁN+)
@@ -0,0 +1,10 @@
+v4. 0. 7: OpenTracks
+
+Athruithe:
+- Gps comhartha caillte teorainn ama: 30s
+- - Android 13: cead a iarraidh chun fógraí a thaispeáint
+- Scrios rianta níos tapúla (bunachar sonraí folúis amháin más gá)
+
+Ceartúcháin:
+- PublicAPI stop ordú mar thoradh ar tuairteála (a tugadh isteach i v4. 0. 6)
+- Ceadanna: ceadanna a iarraidh le linn tosaithe
@@ -0,0 +1,11 @@
+v4. 0. 8: OpenTracks
+
+Athruithe:
+- Airde a thaispeántar i gcónaí i m/ft
+- Taispeáin crios ama an riain mura bhfuil sé éagsúil le crios ama na feiste
+- PublicAPI: tacaíocht deilbhín an riain a shocrú go sainráite
+
+Forbróir:
+- A Tugadh Isteach Cianfhormáideoir
+- Uasghrádú GO AGP 7.3/desugar Ar Feadh Ré.aicme
+- Android12+: déan splancscáileán trí Androidx
@@ -0,0 +1,8 @@
+v4. 1. 0: OpenTracks
+
+Athruithe:
+- Easpórtáil leagan KML/KMZ 2. 3 amháin (2. 2)
+- Le haghaidh crank-bhunaithe powermeters: faigh cadence
+
+Ceartúcháin:
+- Workaround do tuairteála ar "iompórtáil gach rud"
@@ -0,0 +1,7 @@
+v4.1. 1: OpenTracks
+
+Athruithe:
+- Cuir scáileán réamhrá leis (taispeáin uair amháin)
+
+Ceartúcháin:
+- Ná tuairteála mura bhfuil gléas GPS i láthair
@@ -0,0 +1,22 @@
+Cairde rianaithe spóirt a bhfuil meas aige ar do phríobháideachas.
+
+Tugann gníomhaíochtaí spóirt agus lasmuigh sonas, scil agus muinín.
+
+Cuir luach ar do shláinte trí súil a choinneáil ar d'oiliúint.
+Taifeadann tú de réir mar a théann tú ag rith nó ag siúl, agus tugann sé ríomhaire rothar duit le scáileán níos mó le haghaidh rothaíochta.
+Marcáil láithreacha suimiúla ar do bhealach le pictiúir.
+Coinnigh staitisticí taifeadta go mion go leor le haghaidh anailíse.
+Comhroinn ach na sonraí a theastaíonn uait a bheith ag daoine eile.
+
+* Fógraí gutha.
+* Tacaíonn braiteoirí Bluetooth LE: ráta croí, luas agus fad (rothaíocht), deireadh (rothaíocht), agus méadar cumhachta (rothaíocht).
+* Gnóthachan agus caillteanas airde: trí bhraiteoir barometric.
+* Airde léirithe in EGM2008 (os cionn meánleibhéal na farraige); onnmhairiú mar WGS84.
+* Easpórtáil sonraí mar rianta mar KMZ (grianghraif san áireamh), KML, nó GPX.
+* Gan rochtain ar an Idirlíon nó ceadanna breise.
+* Téama dorcha agus éadrom, ag urramú socruithe an chórais.
+* Gan fógraí.
+
+Bogearraí Libre / Bogearraí Saor in Aisce / Foinse Oscailte
+rud a chiallaíonn gur féidir leat an cód foinse a úsáid, a staidéar, a athrú agus a roinnt.
+Ceadúnaithe Apache 2.0
@@ -0,0 +1 @@
+Cairde rianaithe spóirt a bhfuil meas aige ar do phríobháideachas.
@@ -0,0 +1 @@
+OpenTracks
@@ -0,0 +1,16 @@
+v3.18.6: OpenTracks
+
+Thay đổi:
+- Tính năng "Hiện trên bản đồ" thông qua KML thay vì KMZ
+- Thông báo bằng giọng nói không bao gồm tên ứng dụng
+- Trong lúc ghi: Tăng/ giảm độ cao được cập nhật mỗi giây
+- Thông tin cửa hàng được cập nhật
+
+Sửa lỗi:
+- Sửa lỗi các bản dịch Thông báo giọng nói không hợp lệ
+
+Phát triển:
+- Quyền Android 12 (BLUETOOTH_SCAN)
+- Quyền Android 12 (ACCESS_COARSE_LOCATION)
+- Khẳng định cho TrackPoints (thử nghiệm)
+- Loại bỏ các bản dịch thừa
@@ -1,11 +1,22 @@
-OpenTracks là một môn thể thao theo dõi ứng dụng hoàn toàn tôn trọng sự riêng tư.
+OpenTracks là một ứng dụng theo dõi thể theo tôn trọng sự riêng tư của bạn.

-Tính năng:
-* Thể theo dõi theo dõi thể thao và hoạt động ngoài trời
-* Ảnh và đánh dấu: đánh dấu địa điểm thú vị trong khi theo dõi
-* Độ cao được và mất: thông qua khí quyển cảm biến
-* Độ cao thể hiện trong EGM2008 (trên mực nước biển); xuất khẩu như WGS84
-* Tiếng nói thông báo
-* Hỗ trợ Bluetooth LE cảm biến: tim, tốc độ và khoảng cách (đi xe đạp), nhịp (đi xe đạp), và đồng hồ điện (đi xe đạp)
-* Xuất dữ liệu: xuất bài hát hoặc là BIỂU (bao gồm. ảnh) DÕI hay C
-* Không có Internet: Internet là không được sử dụng
+Thể thao và các hoạt động ngoài trời cho bạn niềm vui, kĩ năng và sự tự tin.
+
+Quý trọng sức khỏe của bạn bằng cách theo dõi tập luyện của bạn.
+Ghi lại quá trình khi bạn chạy bộ hoặc đi bộ, và cho bạn một màn hình xe đạp khi đạp xe.
+Đánh dấu những địa điểm thú vị trong lúc bạn di chuyển bằng hình ảnh.
+Giữ các thống kê chi tiết để phân tích kĩ càng.
+Chỉ chia sẻ những dữ liệu bạn muốn chia sẻ.
+
+* Thông báo bằng giọng nói.
+* Hỗ trợ Bluetooth LE cảm biến: nhịp tim, tốc độ và khoảng cách (đi xe đạp), nhịp (đi xe đạp), và đồng hồ sức mạnh (đi xe đạp)
+* Tăng hoặc giảm độ cao: thông qua cảm biến khí áp.
+* Độ cao được hiển thị dưới EGM2009 (trên nghĩa là trên mực nước biển), KML hoặc GPX.
+* Xuất dữ liệu được lại dưới KMZ (gồm hình ảnh), KML hoặc GPX.
+* Không cần Internet hoặc các quyền không cần thiết.
+* Chế độ tối hoặc sáng, theo cài đặt hệ thống.
+* Không quảng cáo.
+
+Phần mềm Libre / Free Software / Mã nguồn mở
+có nghĩa là bạn có thể dùng, học tập, thay đổi và chia sẻ mã nguồn.
+Licensed Apache 2.0
@@ -1 +1 @@
-Một môn thể thao theo dõi mà hoàn toàn tôn trọng sự riêng tư.
+Một người bạn theo dõi mà tôn trọng sự riêng tư của bạn.
@@ -1,11 +1,22 @@
-OpenTracks是一个完全尊重你的隐私的运动跟踪应用程序。
+一款尊重您的隐私的运动追踪应用。
+
+健康幸福的生活总少不了各种运动和户外活动。
+
+使用本应用，您可以保持对您的训练数据的有效追踪，为您的健康助力。
+本应用可以在您跑步或散步时记录数据，也可以在您骑车时作为一个大屏幕自行车电脑。
+您可以为路上的有趣位置创建标记，还可以用图片作为标记。
+您的数据会被详尽地记录下来，供您查阅分析。
+您的数据只会分享给您想要分享给的人。

-特点。
-* 运动追踪：追踪你的运动和户外活动
-* 照片和标记：在跟踪时标记有趣的地点
-* 海拔增减：通过气压传感器
-* 高度显示为EGM2008（平均海平面以上）；导出为WGS84
 * 语音播报
-* 支持蓝牙LE传感器：心率、速度和距离（骑车）、节奏（骑车）和功率计（骑车）。
-* 导出数据：以KMZ（包括照片）、KML或GPX形式导出轨迹
-* 没有互联网接入。不使用互联网
+* 支持蓝牙LE传感器：心率、速度和距离（骑车）、踏频（骑车）和功率计（骑车）。
+* 海拔增减：通过气压传感器。
+* EGM2008 海拔显示（平均海平面以上）；导出为 WGS84。
+* 导出路线数据，支持 KMZ（包括照片）、KML 和 GPX 格式。
+* 不需要联网，不需要额外权限。
+* 深色和浅色主题，跟随系统设置。
+* 没有广告。
+
+本应用是开源软件
+意味着您可以使用、学习、修改和分发本应用的源代码。
+本应用使用 Apache 2.0 协议发布。
@@ -1 +1 @@
-一个完全尊重你隐私的运动追踪器。
+一款尊重您的隐私的运动追踪应用。
@@ -1 +1,2 @@
-android.useAndroidX=true
+android.useAndroidX=true
+org.gradle.jvmargs=-Xmx1024m -XX:MaxPermSize=256m
@@ -28,14 +28,14 @@ public class KmlTrackExporterTest {
    @Test
    public void writeCloseSegment_only_write_sensordata_if_present() {
        String expected = "<when>1970-01-01T00:00:00Z</when>\n" +
-                "<gx:coord/>\n" +
+                "<coord/>\n" +
                "<when>1970-01-01T01:00:00+01:00</when>\n" +
-                "<gx:coord/>\n" +
+                "<coord/>\n" +
                "<ExtendedData>\n" +
                "<SchemaData schemaUrl=\"#schema\">\n" +
                "</SchemaData>\n" +
                "</ExtendedData>\n" +
-                "</gx:Track>\n";
+                "</Track>\n";

        // given
        TrackPoint trackPoint = new TrackPoint(TrackPoint.Type.SEGMENT_START_MANUAL, Instant.ofEpochSecond(0));
@@ -12,19 +12,16 @@ import android.net.Uri;
 import android.os.Build;
 import android.os.Looper;

-import androidx.annotation.NonNull;
 import androidx.preference.PreferenceManager;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.LargeTest;
 import androidx.test.platform.app.InstrumentationRegistry;
-import androidx.test.rule.GrantPermissionRule;
 import androidx.test.rule.ServiceTestRule;

 import org.junit.After;
 import org.junit.Before;
 import org.junit.BeforeClass;
-import org.junit.Ignore;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -61,7 +58,8 @@ import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.io.file.exporter.TrackExporter;
 import de.dennisguse.opentracks.sensors.AltitudeSumManager;
 import de.dennisguse.opentracks.sensors.BluetoothRemoteSensorManager;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataCycling;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadence;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingDistanceSpeed;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataHeartRate;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataSet;
@@ -72,6 +70,9 @@ import de.dennisguse.opentracks.stats.TrackStatistics;

 /**
 * Export a track to {@link TrackFileFormat} and verify that the import is identical.
+ * <p>
+ * Note: those tests are affected by {@link de.dennisguse.opentracks.sensors.sensorData.SensorData}.isRecent().
+ * If the test device is too slow (like in a CI) these are likely to fail as the sensor data will be omitted from actual.
 */
@RunWith(AndroidJUnit4.class)
 public class ExportImportTest {
@@ -81,9 +82,6 @@ public class ExportImportTest {
    @Rule
    public final ServiceTestRule mServiceRule = ServiceTestRule.withTimeout(5, TimeUnit.SECONDS);

-    @Rule
-    public GrantPermissionRule mRuntimePermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
-
    //For csv_export_only() as we the timezone is hardcoded in the expectation.
    @Rule
    public TimezoneRule timezoneRule = new TimezoneRule(TimeZone.getTimeZone("Europe/Berlin"));
@@ -156,18 +154,19 @@ public class ExportImportTest {
        mockBLESensorData(trackPointCreator, 15f, sensorDistance, 66f, 3f, 50f);

        trackPointCreator.setClock("2020-02-02T02:02:14Z");
-        mockBLESensorData(trackPointCreator, 15f, null, 66f, 3f, 50f);
+        mockBLESensorData(trackPointCreator, 15f, null, 67f, 3f, 50f);
        trackPointCreator.setClock("2020-02-02T02:02:15Z");
-        mockBLESensorData(trackPointCreator, null, null, 66f, 3f, 50f);
+        mockBLESensorData(trackPointCreator, null, null, 68f, 3f, 50f);

        trackPointCreator.setClock("2020-02-02T02:02:16Z");
-        mockBLESensorData(trackPointCreator, 5f, Distance.of(2), 66f, 3f, 50f); // Distance will be added to next TrackPoint
+        mockBLESensorData(trackPointCreator, 5f, Distance.of(2), 69f, 3f, 50f); // Distance will be added to next TrackPoint

        sendLocation(trackPointCreator, "2020-02-02T02:02:17Z", 3, 14.001, 10, 13, 15, 10, 0);
        service.insertMarker("Marker 2", "Marker 2 category", "Marker 2 desc", null);

        trackPointCreator.setClock("2020-02-02T02:02:18Z");
-        trackPointCreator.setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, trackPointCreator));
+        BluetoothRemoteSensorManager mockRemoteSensorManager = Mockito.mock(BluetoothRemoteSensorManager.class);
+        trackPointCreator.setRemoteSensorManager(mockRemoteSensorManager);
        service.endCurrentTrack();

        trackPointCreator.setClock("2020-02-02T02:03:20Z");
@@ -180,7 +179,7 @@ public class ExportImportTest {
        sendLocation(trackPointCreator, "2020-02-02T02:03:23Z", 3, 16.001, 10, 27, 15, 10, 0);

        trackPointCreator.setClock("2020-02-02T02:03:24Z");
-        trackPointCreator.setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, trackPointCreator));
+        trackPointCreator.setRemoteSensorManager(mockRemoteSensorManager);
        service.endCurrentTrack();

        Track track = contentProviderUtils.getTrack(trackId);
@@ -358,7 +357,7 @@ public class ExportImportTest {
                        .setAltitudeLoss(1f)
                        .setAltitudeGain(1f)
                        .setSensorDistance(Distance.of(14))
-                        .setHeartRate(66f)
+                        .setHeartRate(69)
                        .setPower(50f)
                        .setCadence(3f)
                        .setHorizontalAccuracy(Distance.of(10)),
@@ -446,7 +445,6 @@ public class ExportImportTest {
        assertNull(trackImported);
    }

-    @Ignore(value = "TODO Fails on CI; works on API24 and API30 locally")
    @LargeTest
    @Test
    public void csv_export_only() throws TimeoutException, IOException {
@@ -497,32 +495,33 @@ public class ExportImportTest {
    }

    private void mockBLESensorData(TrackPointCreator trackPointCreator, Float speed, Distance distance, float heartRate, float cadence, Float power) {
-        trackPointCreator.setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, trackPointCreator) {
-            @Override
-            public SensorDataSet fill(@NonNull TrackPoint trackPoint) {
-                SensorDataSet sensorDataSet = new SensorDataSet();
-                sensorDataSet.set(new SensorDataCyclingPower("power", "power", Power.of(power)));
-                sensorDataSet.set(new SensorDataHeartRate("heartRate", "heartRate", HeartRate.of(heartRate)));
+        BluetoothRemoteSensorManager remoteSensorManager = Mockito.mock(BluetoothRemoteSensorManager.class);
+        Mockito.when(remoteSensorManager.fill(Mockito.any())).thenAnswer(invocation -> {
+            TrackPoint trackPoint = invocation.getArgument(0);

-                SensorDataCycling.CyclingCadence cyclingCadence = Mockito.mock(SensorDataCycling.CyclingCadence.class);
-                Mockito.when(cyclingCadence.hasValue()).thenReturn(true);
-                Mockito.when(cyclingCadence.getValue()).thenReturn(Cadence.of(cadence));
-                sensorDataSet.set(cyclingCadence);
+            SensorDataSet sensorDataSet = new SensorDataSet();
+            sensorDataSet.set(new SensorDataCyclingPower("power", "power", Power.of(power)));
+            sensorDataSet.set(new SensorDataHeartRate("heartRate", "heartRate", HeartRate.of(heartRate)));

-                if (distance != null && speed != null) {
-                    SensorDataCycling.DistanceSpeed.Data distanceSpeedData = Mockito.mock(SensorDataCycling.DistanceSpeed.Data.class);
-                    Mockito.when(distanceSpeedData.getDistanceOverall()).thenReturn(distance);
-                    Mockito.when(distanceSpeedData.getSpeed()).thenReturn(Speed.of(speed));
-                    SensorDataCycling.DistanceSpeed distanceSpeed = Mockito.mock(SensorDataCycling.DistanceSpeed.class);
-                    Mockito.when(distanceSpeed.hasValue()).thenReturn(true);
-                    Mockito.when(distanceSpeed.getValue()).thenReturn(distanceSpeedData);
-                    sensorDataSet.set(distanceSpeed);
-                }
+            SensorDataCyclingCadence cyclingCadence = Mockito.mock(SensorDataCyclingCadence.class);
+            Mockito.when(cyclingCadence.hasValue()).thenReturn(true);
+            Mockito.when(cyclingCadence.getValue()).thenReturn(Cadence.of(cadence));
+            sensorDataSet.set(cyclingCadence);

-                sensorDataSet.fillTrackPoint(trackPoint);
-                return sensorDataSet;
+            if (distance != null && speed != null) {
+                SensorDataCyclingDistanceSpeed.Data distanceSpeedData = Mockito.mock(SensorDataCyclingDistanceSpeed.Data.class);
+                Mockito.when(distanceSpeedData.getDistanceOverall()).thenReturn(distance);
+                Mockito.when(distanceSpeedData.getSpeed()).thenReturn(Speed.of(speed));
+                SensorDataCyclingDistanceSpeed distanceSpeed = Mockito.mock(SensorDataCyclingDistanceSpeed.class);
+                Mockito.when(distanceSpeed.hasValue()).thenReturn(true);
+                Mockito.when(distanceSpeed.getValue()).thenReturn(distanceSpeedData);
+                sensorDataSet.set(distanceSpeed);
            }
+
+            sensorDataSet.fillTrackPoint(trackPoint);
+            return sensorDataSet;
        });
+        trackPointCreator.setRemoteSensorManager(remoteSensorManager);
        trackPointCreator.onChange(new SensorDataSet());
    }

@@ -9,8 +9,10 @@ import org.junit.Test;

 import de.dennisguse.opentracks.data.models.Cadence;
 import de.dennisguse.opentracks.data.models.Distance;
+import de.dennisguse.opentracks.data.models.HeartRate;
 import de.dennisguse.opentracks.data.models.Speed;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataCycling;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadenceAndDistanceSpeed;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataRunning;

 public class BluetoothUtilsTest {
@@ -18,36 +20,36 @@ public class BluetoothUtilsTest {
    @Test
    public void parseHeartRate_uint8() {
        // given
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEART_RATE_SERVICE_UUID, 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEARTRATE.getServiceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x02, 0x3C});

        // when
-        int heartRate = BluetoothUtils.parseHeartRate(characteristic);
+        HeartRate heartRate = BluetoothUtils.parseHeartRate(characteristic);

        // then
-        assertEquals(60, heartRate);
+        assertEquals(HeartRate.of(60), heartRate);
    }

    @Test
    public void parseHeartRate_uint16() {
        // given
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEART_RATE_SERVICE_UUID, 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.HEARTRATE.getServiceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x01, 0x01, 0x01});

        // when
-        int heartRate = BluetoothUtils.parseHeartRate(characteristic);
+        HeartRate heartRate = BluetoothUtils.parseHeartRate(characteristic);

        // then
-        assertEquals(257, heartRate);
+        assertEquals(HeartRate.of(257), heartRate);
    }

    @Test
    public void parseCyclingSpeedCadence_crankOnly() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE_SERVICE_UUID, 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.getServiceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x02, (byte) 0xC8, 0x00, 0x00, 0x00, 0x06, (byte) 0x99});

        // when
-        SensorDataCycling.CadenceAndSpeed sensor = BluetoothUtils.parseCyclingCrankAndWheel("address", "sensorName", characteristic);
+        SensorDataCyclingCadenceAndDistanceSpeed sensor = BluetoothUtils.parseCyclingCrankAndWheel("address", "sensorName", characteristic);

        // then
        assertNull(sensor.getDistanceSpeed());
@@ -56,11 +58,11 @@ public class BluetoothUtilsTest {

    @Test
    public void parseCyclingSpeedCadence_wheelOnly() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE_SERVICE_UUID, 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.getServiceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x01, (byte) 0xFF, (byte) 0xFF, 0, 1, 0x45, (byte) 0x99});

        // when
-        SensorDataCycling.CadenceAndSpeed sensor = BluetoothUtils.parseCyclingCrankAndWheel("address", "sensorName", characteristic);
+        SensorDataCyclingCadenceAndDistanceSpeed sensor = BluetoothUtils.parseCyclingCrankAndWheel("address", "sensorName", characteristic);

        // then
        assertEquals(65535 + 16777216, sensor.getDistanceSpeed().getWheelRevolutionsCount());
@@ -69,11 +71,11 @@ public class BluetoothUtilsTest {

    @Test
    public void parseCyclingSpeedCadence_crankWheel() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE_SERVICE_UUID, 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_SPEED_CADENCE.getServiceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0x03, (byte) 0xC8, 0x00, 0x00, 0x01, 0x06, (byte) 0x99, (byte) 0xE1, 0x00, 0x45, (byte) 0x99});

        // when
-        SensorDataCycling.CadenceAndSpeed sensor = BluetoothUtils.parseCyclingCrankAndWheel("address", "sensorName", characteristic);
+        SensorDataCyclingCadenceAndDistanceSpeed sensor = BluetoothUtils.parseCyclingCrankAndWheel("address", "sensorName", characteristic);

        // then
        assertEquals(200 + 16777216, sensor.getDistanceSpeed().getWheelRevolutionsCount());
@@ -82,19 +84,34 @@ public class BluetoothUtilsTest {

    @Test
    public void parseCyclingPower_power() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_POWER_MEASUREMENT_CHAR_UUID, 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_POWER.getServiceUUID(), 0, 0);
        characteristic.setValue(new byte[]{0, 0, 40, 0});

        // when
-        int power_w = BluetoothUtils.parseCyclingPower(characteristic);
+        SensorDataCyclingPower.Data powerCadence = BluetoothUtils.parseCyclingPower("", "", characteristic);

        // then
-        assertEquals(40, power_w);
+        assertEquals(40, powerCadence.getPower().getValue().getW(), 0.01);
+    }
+
+    @Test
+    public void parseCyclingPower_power_with_cadence() {
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.CYCLING_POWER.getServiceUUID(), 0, 0);
+        characteristic.setValue(new byte[]{0x2C, 0x00, 0x00, 0x00, (byte) 0x9F, 0x00, 0x0C, 0x00, (byte) 0xE5, 0x42});
+
+        // when
+        SensorDataCyclingPower.Data powerCadence = BluetoothUtils.parseCyclingPower("", "", characteristic);
+
+        // then
+        assertEquals(0, powerCadence.getPower().getValue().getW(), 0.01);
+
+        assertEquals(12, powerCadence.getCadence().getCrankRevolutionsCount());
+        assertEquals(17125, powerCadence.getCadence().getCrankRevolutionsTime());
    }

    @Test
    public void parseRunningSpeedAndCadence_with_distance() {
-        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.RUNNING_RUNNING_SPEED_CADENCE_CHAR_UUID, 0, 0);
+        BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(BluetoothUtils.RUNNING_SPEED_CADENCE.getServiceUUID(), 0, 0);
        characteristic.setValue(new byte[]{2, 0, 5, 80, (byte) 0xFF, (byte) 0xFF, 0, 1});

        // when
@@ -21,8 +21,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_cadence_1() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 1, 1024); // 1s
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 2, 2048); // 2s
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress", "sensorName", 1, 1024); // 1s
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 2, 2048); // 2s

        // when
        current.compute(previous);
@@ -34,8 +34,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_cadence_2() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 1, 6184);
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 2, 8016);
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress", "sensorName", 1, 6184);
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 2, 8016);

        // when
        current.compute(previous);
@@ -47,8 +47,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_cadence_sameCount() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 1, 1024);
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 1, 2048);
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress", "sensorName", 1, 1024);
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 1, 2048);

        // when
        current.compute(previous);
@@ -61,8 +61,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_cadence_sameTime() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 1, 1024);
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 2, 1024);
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress", "sensorName", 1, 1024);
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 2, 1024);

        // when
        current.compute(previous);
@@ -74,8 +74,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_cadence_rollOverTime() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 1, UintUtils.UINT16_MAX - 1024);
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 2, 0);
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress", "sensorName", 1, UintUtils.UINT16_MAX - 1024);
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 2, 0);

        // when
        current.compute(previous);
@@ -89,8 +89,8 @@ public class SensorDataCyclingTest {
    @Deprecated
    public void compute_cadence_rollOverCount() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 0, 2048);
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 0, 2048);

        // when
        current.compute(previous);
@@ -102,8 +102,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_cadence_overflow() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 0, 2048);
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 0, 2048);

        // when
        current.compute(previous);
@@ -115,8 +115,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_speed() {
        // given
-        SensorDataCycling.DistanceSpeed previous = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", 1, 6184);
-        SensorDataCycling.DistanceSpeed current = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", 2, 8016);
+        SensorDataCyclingDistanceSpeed previous = new SensorDataCyclingDistanceSpeed("sensorAddress", "sensorName", 1, 6184);
+        SensorDataCyclingDistanceSpeed current = new SensorDataCyclingDistanceSpeed("sensorAddress", "sensorName", 2, 8016);

        // when
        current.compute(previous, Distance.ofMM(2150));
@@ -131,8 +131,8 @@ public class SensorDataCyclingTest {
    @Deprecated
    public void compute_speed_rollOverCount() {
        // given
-        SensorDataCycling.DistanceSpeed previous = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
-        SensorDataCycling.DistanceSpeed current = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", 0, 2048);
+        SensorDataCyclingDistanceSpeed previous = new SensorDataCyclingDistanceSpeed("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
+        SensorDataCyclingDistanceSpeed current = new SensorDataCyclingDistanceSpeed("sensorAddress", "sensorName", 0, 2048);

        // when
        current.compute(previous, Distance.ofMM(2000));
@@ -145,8 +145,8 @@ public class SensorDataCyclingTest {
    @Test
    public void compute_speed_overflow() {
        // given
-        SensorDataCycling.DistanceSpeed previous = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
-        SensorDataCycling.DistanceSpeed current = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", 0, 2048);
+        SensorDataCyclingDistanceSpeed previous = new SensorDataCyclingDistanceSpeed("sensorAddress", "sensorName", UintUtils.UINT32_MAX - 1, 1024);
+        SensorDataCyclingDistanceSpeed current = new SensorDataCyclingDistanceSpeed("sensorAddress", "sensorName", 0, 2048);

        // when
        current.compute(previous, Distance.ofMM(2000));
@@ -158,8 +158,8 @@ public class SensorDataCyclingTest {
    @Test
    public void equals_speed_with_no_data() {
        // given
-        SensorDataCycling.DistanceSpeed previous = new SensorDataCycling.DistanceSpeed("sensorAddress");
-        SensorDataCycling.DistanceSpeed current = new SensorDataCycling.DistanceSpeed("sensorAddress", "sensorName", 0, 2048);
+        SensorDataCyclingDistanceSpeed previous = new SensorDataCyclingDistanceSpeed("sensorAddress");
+        SensorDataCyclingDistanceSpeed current = new SensorDataCyclingDistanceSpeed("sensorAddress", "sensorName", 0, 2048);

        // when
        previous.toString();
@@ -172,8 +172,8 @@ public class SensorDataCyclingTest {
    @Test
    public void equals_cadence_with_no_data() {
        // given
-        SensorDataCycling.CyclingCadence previous = new SensorDataCycling.CyclingCadence("sensorAddress");
-        SensorDataCycling.CyclingCadence current = new SensorDataCycling.CyclingCadence("sensorAddress", "sensorName", 0, 2048);
+        SensorDataCyclingCadence previous = new SensorDataCyclingCadence("sensorAddress");
+        SensorDataCyclingCadence current = new SensorDataCyclingCadence("sensorAddress", "sensorName", 0, 2048);

        // when
        previous.toString();
@@ -29,7 +29,6 @@ import android.os.Looper;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.MediumTest;
-import androidx.test.rule.GrantPermissionRule;
 import androidx.test.rule.ServiceTestRule;

 import org.junit.After;
@@ -57,9 +56,6 @@ public class TrackRecordingServiceTestMarker {
    @Rule
    public final ServiceTestRule mServiceRule = ServiceTestRule.withTimeout(5, TimeUnit.SECONDS);

-    @Rule
-    public GrantPermissionRule mRuntimePermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
-
    private final Context context = ApplicationProvider.getApplicationContext();
    private ContentProviderUtils contentProviderUtils;

@@ -128,7 +124,6 @@ public class TrackRecordingServiceTestMarker {
    public void recording_GPSfix_createsMarker() {
        // given
        TrackPointCreator trackPointCreator = service.getTrackPointCreator();
-        trackPointCreator.stopGPS();

        trackPointCreator.setClock("2020-02-02T02:02:02Z");
        Track.Id trackId = service.startNewTrack();
@@ -11,7 +11,6 @@ import androidx.annotation.NonNull;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.MediumTest;
-import androidx.test.rule.GrantPermissionRule;
 import androidx.test.rule.ServiceTestRule;

 import org.junit.After;
@@ -53,9 +52,6 @@ public class TrackRecordingServiceTestRecording {
    @Rule
    public final ServiceTestRule mServiceRule = ServiceTestRule.withTimeout(5, TimeUnit.SECONDS);

-    @Rule
-    public GrantPermissionRule mRuntimePermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
-
    private final Context context = ApplicationProvider.getApplicationContext();
    private ContentProviderUtils contentProviderUtils;

@@ -95,7 +91,6 @@ public class TrackRecordingServiceTestRecording {
        PreferencesUtils.setString(R.string.idle_speed_key, R.string.idle_speed_default);

        service = startService();
-        service.getTrackPointCreator().stopGPS();
    }

    @After
@@ -117,7 +112,6 @@ public class TrackRecordingServiceTestRecording {
        String startTime = "2020-02-02T02:02:02Z";
        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.stopGPS();
        trackPointCreator.setAltitudeSumManager(altitudeSumManager);

        // then
@@ -155,7 +149,6 @@ public class TrackRecordingServiceTestRecording {

        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.stopGPS();
        trackPointCreator.setAltitudeSumManager(altitudeSumManager);

        // when
@@ -202,7 +195,6 @@ public class TrackRecordingServiceTestRecording {
        String starTime = "2020-02-02T02:02:02Z";
        trackPointCreator.setClock(starTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.stopGPS();
        trackPointCreator.setAltitudeSumManager(altitudeSumManager);

        String pauseTime = "2020-02-02T02:02:03Z";
@@ -235,7 +227,6 @@ public class TrackRecordingServiceTestRecording {

        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.stopGPS();
        trackPointCreator.setAltitudeSumManager(altitudeSumManager);

        String stopTime = "2020-02-02T02:02:03Z";
@@ -246,7 +237,6 @@ public class TrackRecordingServiceTestRecording {
        String resumeTime = "2020-02-02T02:02:04Z";
        trackPointCreator.setClock(resumeTime);
        service.resumeTrack(trackId);
-        trackPointCreator.stopGPS();
        trackPointCreator.setAltitudeSumManager(altitudeSumManager);

        // then
@@ -268,7 +258,6 @@ public class TrackRecordingServiceTestRecording {

        trackPointCreator.setClock(startTime);
        Track.Id trackId = service.startNewTrack();
-        trackPointCreator.stopGPS();
        trackPointCreator.setAltitudeSumManager(altitudeSumManager);
        BluetoothRemoteSensorManager remoteSensorManager = trackPointCreator.getRemoteSensorManager();

@@ -195,7 +195,7 @@ public class TrackRecordingServiceTestStateMachine {

    @MediumTest
    @Test
-    public void cannotResume_non_existing_track() throws InterruptedException {
+    public void cannotResume_non_existing_track() {
        // given
        assertFalse(service.isRecording());
        assertEquals(TrackRecordingService.STATUS_DEFAULT, service.getRecordingStatusObservable().getValue());
@@ -6,6 +6,8 @@ import android.location.Location;

 import androidx.test.rule.ServiceTestRule;

+import org.mockito.Mockito;
+
 import java.time.Clock;
 import java.util.concurrent.TimeoutException;

@@ -27,7 +29,8 @@ public class TrackRecordingServiceTestUtils {
        TrackRecordingService service = ((TrackRecordingService.Binder) mServiceRule.bindService(new Intent(context, TrackRecordingService.class)))
                .getService();

-        service.getTrackPointCreator().setRemoteSensorManager(new BluetoothRemoteSensorManager(context, null, service.getTrackPointCreator()));
+        BluetoothRemoteSensorManager remoteSensorManager = Mockito.mock(BluetoothRemoteSensorManager.class);
+        service.getTrackPointCreator().setRemoteSensorManager(remoteSensorManager);
        service.getTrackPointCreator().setClock(Clock.systemUTC());
        service.endCurrentTrack();
    }
@@ -8,7 +8,6 @@ import android.os.Looper;

 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
-import androidx.test.rule.GrantPermissionRule;
 import androidx.test.rule.ServiceTestRule;

 import org.junit.AfterClass;
@@ -31,9 +30,6 @@ public class VoiceAnnouncementManagerTest {
    @Rule
    public final ServiceTestRule mServiceRule = ServiceTestRule.withTimeout(5, TimeUnit.SECONDS);

-    @Rule
-    public GrantPermissionRule mRuntimePermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
-
    @BeforeClass
    public static void preSetUp() {
        // Prepare looper for Android's message queue
@@ -64,7 +64,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, true, null, null).toString();

        // then
-        assertEquals("Total distance 20.00 kilometers. 1 hour 5 minutes 10 seconds. Speed 18.4 kilometers per hour.", announcement);
+        assertEquals("Total distance 20.0 kilometers. 1 hour 5 minutes 10 seconds. Average moving speed 18.4 kilometers per hour.", announcement);
    }

    @Test
@@ -80,7 +80,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, true, null, null).toString();

        // then
-        assertEquals("Total distance 20.00 kilometers. 1 hour 1 second. Speed 20.0 kilometers per hour.", announcement);
+        assertEquals("Total distance 20.0 kilometers. 1 hour 1 second. Average moving speed 20.0 kilometers per hour.", announcement);
    }

    @Test
@@ -96,13 +96,13 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, true, null, null).toString();

        // then
-        assertEquals("Total distance 20.00 kilometers. 1 hour. Speed 20.0 kilometers per hour.", announcement);
+        assertEquals("Total distance 20.0 kilometers. 1 hour. Average moving speed 20.0 kilometers per hour.", announcement);
    }

    @Test
    public void getAnnouncement_metric_distance_rounding_check_two() {
        TrackStatistics stats = new TrackStatistics();
-        stats.setTotalDistance(Distance.of(19990));
+        stats.setTotalDistance(Distance.of(19900));
        stats.setTotalTime(Duration.ofHours(1).plusMinutes(5).plusSeconds(10));
        stats.setMovingTime(Duration.ofHours(1));
        stats.setMaxSpeed(Speed.of(100));
@@ -112,7 +112,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, true, null, null).toString();

        // then
-        assertEquals("Total distance 19.99 kilometers. 1 hour. Speed 20.0 kilometers per hour.", announcement);
+        assertEquals("Total distance 19.9 kilometers. 1 hour. Average moving speed 19.9 kilometers per hour.", announcement);
    }

    @Test
@@ -134,7 +134,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, true, lastInterval, null).toString();

        // then
-        assertEquals("Total distance 14.21 kilometers. 16 minutes 39 seconds. Speed 51.2 kilometers per hour. Lap speed 51.2 kilometers per hour.", announcement);
+        assertEquals("Total distance 14.2 kilometers. 16 minutes 39 seconds. Average moving speed 51.2 kilometers per hour. Lap speed 51.2 kilometers per hour.", announcement);
    }

    @Test
@@ -150,7 +150,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, false, null, null).toString();

        // then
-        assertEquals("Total distance 20.00 kilometers. 1 hour 5 minutes 10 seconds. Pace 3 minutes 15 seconds per kilometer.", announcement);
+        assertEquals("Total distance 20.0 kilometers. 1 hour 5 minutes 10 seconds. Pace 3 minutes 15 seconds per kilometer.", announcement);
    }

    @Test
@@ -172,7 +172,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, false, lastInterval, null).toString();

        // then
-        assertEquals("Total distance 14.21 kilometers. 16 minutes 39 seconds. Pace 1 minute 10 seconds per kilometer. Lap time 1 minute 10 seconds per kilometer.", announcement);
+        assertEquals("Total distance 14.2 kilometers. 16 minutes 39 seconds. Pace 1 minute 10 seconds per kilometer. Lap time 1 minute 10 seconds per kilometer.", announcement);
    }

    @Test
@@ -188,7 +188,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, true, null, null).toString();

        // then
-        assertEquals("Total distance 12.43 miles. 1 hour 5 minutes 10 seconds. Speed 11.4 miles per hour.", announcement);
+        assertEquals("Total distance 12.4 miles. 1 hour 5 minutes 10 seconds. Average moving speed 11.4 miles per hour.", announcement);
    }

    @Test
@@ -210,7 +210,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, true, lastInterval, null).toString();

        // then
-        assertEquals("Total distance 8.83 miles. 16 minutes 39 seconds. Speed 31.8 miles per hour. Lap speed 31.8 miles per hour.", announcement);
+        assertEquals("Total distance 8.8 miles. 16 minutes 39 seconds. Average moving speed 31.8 miles per hour. Lap speed 31.8 miles per hour.", announcement);
    }

    @Test
@@ -226,7 +226,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, false, null, null).toString();

        // then
-        assertEquals("Total distance 12.43 miles. 1 hour 5 minutes 10 seconds. Pace 5 minutes 15 seconds per mile.", announcement);
+        assertEquals("Total distance 12.4 miles. 1 hour 5 minutes 10 seconds. Pace 5 minutes 15 seconds per mile.", announcement);
    }

    @Test
@@ -248,7 +248,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.IMPERIAL, false, lastInterval, null).toString();

        // then
-        assertEquals("Total distance 8.83 miles. 16 minutes 39 seconds. Pace 1 minute 53 seconds per mile. Lap time 1 minute 53 seconds per mile.", announcement);
+        assertEquals("Total distance 8.8 miles. 16 minutes 39 seconds. Pace 1 minute 53 seconds per mile. Lap time 1 minute 53 seconds per mile.", announcement);
    }

    @Test
@@ -274,7 +274,7 @@ public class VoiceAnnouncementUtilsTest {
        String announcement = VoiceAnnouncementUtils.getAnnouncement(context, stats, UnitSystem.METRIC, true, lastInterval, sensorStatistics).toString();

        // then
-        assertEquals("Total distance 14.21 kilometers. 16 minutes 39 seconds. Speed 51.2 kilometers per hour. Lap speed 51.2 kilometers per hour. Average heart rate 180 bpm. Current heart rate 133 bpm.", announcement);
+        assertEquals("Total distance 14.2 kilometers. 16 minutes 39 seconds. Average moving speed 51.2 kilometers per hour. Lap speed 51.2 kilometers per hour. Average heart rate 180 bpm. Current heart rate 133 bpm.", announcement);
    }

    @Test
@@ -6,6 +6,7 @@ import static org.mockito.Mockito.verify;

 import android.content.Context;
 import android.location.Location;
+import android.os.Handler;
 import android.os.Looper;

 import androidx.test.core.app.ApplicationProvider;
@@ -49,7 +50,7 @@ public class GPSHandlerTest {
        Mockito.when(trackPointCreator.createNow())
                .thenReturn(Instant.now());

-        locationHandler.onStart(context);
+        locationHandler.onStart(context, new Handler());
    }

    /**
@@ -17,7 +17,8 @@ import org.junit.runner.RunWith;
 import java.util.List;

 import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayoutIO;

@RunWith(AndroidJUnit4.class)
 public class PreferencesOpenHelperTest {
@@ -38,10 +39,10 @@ public class PreferencesOpenHelperTest {
        PreferencesOpenHelper.newInstance(1).check();

        // then there should be one layout with old custom layout that has the new CSV value.
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
-        assertNotNull(layouts);
-        assertEquals(layouts.size(), 1);
-        assertEquals(layouts.get(0).toCsv(), PreferencesUtils.getCustomLayout().toCsv());
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();
+        assertNotNull(recordingLayouts);
+        assertEquals(recordingLayouts.size(), 1);
+        assertEquals(recordingLayouts.get(0).toCsv(), PreferencesUtils.getCustomLayout().toCsv());
    }

    @Test
@@ -63,10 +64,10 @@ public class PreferencesOpenHelperTest {
                + PreferencesUtils.getLayoutColumnsByDefault() + ";distance,1,1,0;speed,1,1,0;";

        // then there should be one layout with old custom layout that has the new CSV value.
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
-        assertNotNull(layouts);
-        assertEquals(layouts.size(), 1);
-        assertEquals(layouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();
+        assertNotNull(recordingLayouts);
+        assertEquals(recordingLayouts.size(), 1);
+        assertEquals(recordingLayouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
    }

    @Test
@@ -87,10 +88,10 @@ public class PreferencesOpenHelperTest {
        String updatedOldCustomLayoutCsv = "whatever;3;distance,1,1,0;speed,1,1,0;";

        // then there should be one layout with old custom layout that has the new CSV value.
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
-        assertNotNull(layouts);
-        assertEquals(layouts.size(), 1);
-        assertEquals(layouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();
+        assertNotNull(recordingLayouts);
+        assertEquals(recordingLayouts.size(), 1);
+        assertEquals(recordingLayouts.get(0).toCsv(), updatedOldCustomLayoutCsv);
    }

    @Test
@@ -109,10 +110,10 @@ public class PreferencesOpenHelperTest {
        PreferencesOpenHelper.newInstance(1).check();

        // then custom layout should be equals to default layout.
-        Layout defaultLayout = Layout.fromCsv(PreferencesUtils.buildDefaultLayout(), resources);
-        List<Layout> customLayout = PreferencesUtils.getAllCustomLayouts();
+        RecordingLayout defaultRecordingLayout = RecordingLayoutIO.fromCsv(PreferencesUtils.buildDefaultLayout(), resources);
+        List<RecordingLayout> customRecordingLayout = PreferencesUtils.getAllCustomLayouts();

-        assertEquals(customLayout.size(), 1);
-        assertEquals(defaultLayout.toCsv(), customLayout.get(0).toCsv());
+        assertEquals(customRecordingLayout.size(), 1);
+        assertEquals(defaultRecordingLayout.toCsv(), customRecordingLayout.get(0).toCsv());
    }
 }
@@ -22,7 +22,8 @@ import java.util.List;
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.ui.customRecordingLayout.DataField;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayoutIO;

@RunWith(AndroidJUnit4.class)
 public class PreferencesUtilsTest {
@@ -85,13 +86,13 @@ public class PreferencesUtilsTest {
        editor.commit();

        // when
-        List<Layout> layouts = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> recordingLayouts = PreferencesUtils.getAllCustomLayouts();

        // then
-        assertEquals(layouts.size(), 1);
-        assertTrue(layouts.get(0).getFields().size() > 0);
-        assertEquals(layouts.get(0).getName(), context.getString(R.string.stats_custom_layout_default_layout));
-        assertTrue(layouts.get(0).getFields().stream().anyMatch(DataField::isVisible));
+        assertEquals(recordingLayouts.size(), 1);
+        assertTrue(recordingLayouts.get(0).getFields().size() > 0);
+        assertEquals(recordingLayouts.get(0).getName(), context.getString(R.string.stats_custom_layout_default_layout));
+        assertTrue(recordingLayouts.get(0).getFields().stream().anyMatch(DataField::isVisible));
    }

    @Test
@@ -103,12 +104,12 @@ public class PreferencesUtilsTest {
        editor.commit();

        // when
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then
-        assertTrue(layout.getFields().size() > 0);
-        assertEquals(layout.getName(), context.getString(R.string.stats_custom_layout_default_layout));
-        assertTrue(layout.getFields().stream().anyMatch(DataField::isVisible));
+        assertTrue(recordingLayout.getFields().size() > 0);
+        assertEquals(recordingLayout.getName(), context.getString(R.string.stats_custom_layout_default_layout));
+        assertTrue(recordingLayout.getFields().stream().anyMatch(DataField::isVisible));
    }

    @Test
@@ -126,28 +127,28 @@ public class PreferencesUtilsTest {
        editor.apply();

        // when
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then
-        assertEquals(layout.getFields().size(), 4);
-        assertEquals(layout.getName(), "run");
-        assertEquals(layout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 4);
+        assertEquals(recordingLayout.getName(), "run");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);

-        assertEquals(layout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
-        assertTrue(layout.getFields().get(0).isVisible());
-        assertTrue(layout.getFields().get(0).isPrimary());
+        assertEquals(recordingLayout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
+        assertTrue(recordingLayout.getFields().get(0).isVisible());
+        assertTrue(recordingLayout.getFields().get(0).isPrimary());

-        assertEquals(layout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
-        assertTrue(layout.getFields().get(1).isVisible());
-        assertFalse(layout.getFields().get(1).isPrimary());
+        assertEquals(recordingLayout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
+        assertTrue(recordingLayout.getFields().get(1).isVisible());
+        assertFalse(recordingLayout.getFields().get(1).isPrimary());

-        assertEquals(layout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_average_moving_speed_key));
-        assertFalse(layout.getFields().get(2).isVisible());
-        assertTrue(layout.getFields().get(2).isPrimary());
+        assertEquals(recordingLayout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_average_moving_speed_key));
+        assertFalse(recordingLayout.getFields().get(2).isVisible());
+        assertTrue(recordingLayout.getFields().get(2).isPrimary());

-        assertEquals(layout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
-        assertFalse(layout.getFields().get(3).isVisible());
-        assertFalse(layout.getFields().get(3).isPrimary());
+        assertEquals(recordingLayout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
+        assertFalse(recordingLayout.getFields().get(3).isVisible());
+        assertFalse(recordingLayout.getFields().get(3).isPrimary());
    }

    @Test
@@ -165,44 +166,44 @@ public class PreferencesUtilsTest {
        editor.apply();

        // when
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then
-        assertEquals(layout.getFields().size(), 4);
-        assertEquals(layout.getName(), "walking");
-        assertEquals(layout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 4);
+        assertEquals(recordingLayout.getName(), "walking");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);

-        assertEquals(layout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
-        assertTrue(layout.getFields().get(0).isVisible());
-        assertTrue(layout.getFields().get(0).isPrimary());
+        assertEquals(recordingLayout.getFields().get(0).getKey(), context.getString(R.string.stats_custom_layout_moving_time_key));
+        assertTrue(recordingLayout.getFields().get(0).isVisible());
+        assertTrue(recordingLayout.getFields().get(0).isPrimary());

-        assertEquals(layout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
-        assertTrue(layout.getFields().get(1).isVisible());
-        assertFalse(layout.getFields().get(1).isPrimary());
+        assertEquals(recordingLayout.getFields().get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
+        assertTrue(recordingLayout.getFields().get(1).isVisible());
+        assertFalse(recordingLayout.getFields().get(1).isPrimary());

-        assertEquals(layout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_coordinates_key));
-        assertFalse(layout.getFields().get(2).isVisible());
-        assertTrue(layout.getFields().get(2).isPrimary());
-        assertTrue(layout.getFields().get(2).isWide());
+        assertEquals(recordingLayout.getFields().get(2).getKey(), context.getString(R.string.stats_custom_layout_coordinates_key));
+        assertFalse(recordingLayout.getFields().get(2).isVisible());
+        assertTrue(recordingLayout.getFields().get(2).isPrimary());
+        assertTrue(recordingLayout.getFields().get(2).isWide());

-        assertEquals(layout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
-        assertFalse(layout.getFields().get(3).isVisible());
-        assertFalse(layout.getFields().get(3).isPrimary());
+        assertEquals(recordingLayout.getFields().get(3).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
+        assertFalse(recordingLayout.getFields().get(3).isVisible());
+        assertFalse(recordingLayout.getFields().get(3).isPrimary());
    }

    @Test
    public void testSetCustomLayout() {
        // given
        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
-        Layout layoutSrc = new Layout("road cycling");
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_moving_time_key), context.getString(R.string.stats_moving_time), true, true, false));
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_distance_key), context.getString(R.string.stats_distance), true, false, false));
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_average_moving_speed_key), context.getString(R.string.stats_average_moving_speed), false, true, false));
-        layoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_speed_key), context.getString(R.string.stats_speed), false, false, false));
+        RecordingLayout recordingLayoutSrc = new RecordingLayout("road cycling");
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_moving_time_key), true, true, false));
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_distance_key), true, false, false));
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_average_moving_speed_key), false, true, false));
+        recordingLayoutSrc.addField(new DataField(context.getString(R.string.stats_custom_layout_speed_key), false, false, false));

        // when
        SharedPreferences.Editor editor = sharedPreferences.edit();
-        editor.putString(context.getString(R.string.stats_custom_layouts_key), layoutSrc.toCsv());
+        editor.putString(context.getString(R.string.stats_custom_layouts_key), recordingLayoutSrc.toCsv());
        editor.commit();

        // then
@@ -215,13 +216,13 @@ public class PreferencesUtilsTest {
                + context.getString(R.string.stats_custom_layout_average_moving_speed_key) + ",0,1,0;"
                + context.getString(R.string.stats_custom_layout_speed_key) + ",0,0,0;");

-        Layout layoutDst = PreferencesUtils.getCustomLayout();
-        assertEquals(layoutSrc.getName(), layoutDst.getName());
-        assertEquals(layoutSrc.getFields().size(), layoutDst.getFields().size());
-        for (int i = 0; i < layoutSrc.getFields().size(); i++) {
-            assertEquals(layoutSrc.getFields().get(i).getKey(), layoutDst.getFields().get(i).getKey());
-            assertEquals(layoutSrc.getFields().get(i).isVisible(), layoutDst.getFields().get(i).isVisible());
-            assertEquals(layoutSrc.getFields().get(i).isPrimary(), layoutDst.getFields().get(i).isPrimary());
+        RecordingLayout recordingLayoutDst = PreferencesUtils.getCustomLayout();
+        assertEquals(recordingLayoutSrc.getName(), recordingLayoutDst.getName());
+        assertEquals(recordingLayoutSrc.getFields().size(), recordingLayoutDst.getFields().size());
+        for (int i = 0; i < recordingLayoutSrc.getFields().size(); i++) {
+            assertEquals(recordingLayoutSrc.getFields().get(i).getKey(), recordingLayoutDst.getFields().get(i).getKey());
+            assertEquals(recordingLayoutSrc.getFields().get(i).isVisible(), recordingLayoutDst.getFields().get(i).isVisible());
+            assertEquals(recordingLayoutSrc.getFields().get(i).isPrimary(), recordingLayoutDst.getFields().get(i).isPrimary());
        }
    }

@@ -247,7 +248,7 @@ public class PreferencesUtilsTest {
        editor.putString(context.getString(R.string.stats_custom_layouts_key), cyclingProfile + "\n" + runningProfile);
        editor.apply();

-        List<Layout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();

        // when cyling profile is updated
        String cyclingProfileUpdated = "cycling;2;"
@@ -256,14 +257,14 @@ public class PreferencesUtilsTest {
                + context.getString(R.string.stats_custom_layout_average_moving_speed_key) + ",0,0;"
                + context.getString(R.string.stats_custom_layout_speed_key) + ",0,0;";

-        List<Layout> layoutsToBeUpdated = new ArrayList<>();
-        layoutsToBeUpdated.add(Layout.fromCsv(cyclingProfileUpdated, resources));
-        layoutsToBeUpdated.add(Layout.fromCsv(runningProfile, resources));
+        List<RecordingLayout> layoutsToBeUpdated = new ArrayList<>();
+        layoutsToBeUpdated.add(RecordingLayoutIO.fromCsv(cyclingProfileUpdated, resources));
+        layoutsToBeUpdated.add(RecordingLayoutIO.fromCsv(runningProfile, resources));

        PreferencesUtils.updateCustomLayouts(layoutsToBeUpdated);

        // then only updated profile is modified in the custom layouts
-        List<Layout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();

        assertEquals(layoutsBefore.size(), 2);
        assertEquals(layoutsAfter.size(), 2);
@@ -294,7 +295,7 @@ public class PreferencesUtilsTest {
        editor.putString(context.getString(R.string.stats_custom_layouts_key), cyclingProfile + "\n" + runningProfile);
        editor.apply();

-        List<Layout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsBefore = PreferencesUtils.getAllCustomLayouts();

        // when cyling profile is updated
        String cyclingProfileUpdated = "cycling;2;"
@@ -302,11 +303,11 @@ public class PreferencesUtilsTest {
                + context.getString(R.string.stats_custom_layout_distance_key) + ",0,0;"
                + context.getString(R.string.stats_custom_layout_average_moving_speed_key) + ",0,0;"
                + context.getString(R.string.stats_custom_layout_speed_key) + ",0,0;";
-        Layout layoutToBeUpdated = Layout.fromCsv(cyclingProfileUpdated, resources);
-        PreferencesUtils.updateCustomLayout(layoutToBeUpdated);
+        RecordingLayout recordingLayoutToBeUpdated = RecordingLayoutIO.fromCsv(cyclingProfileUpdated, resources);
+        PreferencesUtils.updateCustomLayout(recordingLayoutToBeUpdated);

        // then only updated profile is modified in the custom layouts
-        List<Layout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();
+        List<RecordingLayout> layoutsAfter = PreferencesUtils.getAllCustomLayouts();

        assertEquals(layoutsBefore.size(), 2);
        assertEquals(layoutsAfter.size(), 2);
@@ -337,9 +338,9 @@ public class PreferencesUtilsTest {
        editor.apply();

        // when it gets the custom layout
-        Layout layout = PreferencesUtils.getCustomLayout();
+        RecordingLayout recordingLayout = PreferencesUtils.getCustomLayout();

        // then the first one was returned
-        assertEquals(layout.getName(), "cycling");
+        assertEquals(recordingLayout.getName(), "cycling");
    }
 }
@@ -78,7 +78,7 @@ public class TrackStatisticsUpdaterTest {

        // when
        TrackStatisticsUpdater subject = new TrackStatisticsUpdater();
-        data.trackPoints.forEach(it -> subject.addTrackPoint(it));
+        data.trackPoints.forEach(subject::addTrackPoint);

        // then
        TrackStatistics statistics = subject.getTrackStatistics();
@@ -12,7 +12,6 @@ import static org.hamcrest.Matchers.allOf;
 import static de.dennisguse.opentracks.util.EspressoUtils.waitFor;

 import android.util.Pair;
-import android.view.View;

 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.espresso.ViewInteraction;
@@ -72,7 +71,7 @@ public class EspressoAggregatedFilterTest {
        ViewInteraction checkBox = onView(
                allOf(withId(R.id.filter_dialog_check_button), withText(CATEGORY),
                        withParent(allOf(withId(R.id.filter_items),
-                                withParent(IsInstanceOf.<View>instanceOf(android.view.ViewGroup.class)))),
+                                withParent(IsInstanceOf.instanceOf(android.view.ViewGroup.class)))),
                        isDisplayed()));
        checkBox.perform(waitFor(2000));

@@ -10,7 +10,7 @@ import org.junit.runner.RunWith;
 import java.util.List;

@RunWith(AndroidJUnit4.class)
-public class CsvLayoutUtilsTest extends TestCase {
+public class CsvRecordingLayoutUtilsTest extends TestCase {

    @Test
    public void testGetCsvLineParts() {
@@ -1,76 +0,0 @@
-package de.dennisguse.opentracks.ui.customRecordingLayout;
-
-
-import static androidx.test.espresso.Espresso.onView;
-import static androidx.test.espresso.action.ViewActions.click;
-import static androidx.test.espresso.action.ViewActions.longClick;
-import static androidx.test.espresso.matcher.ViewMatchers.assertThat;
-import static androidx.test.espresso.matcher.ViewMatchers.withId;
-import static org.hamcrest.CoreMatchers.is;
-
-import android.view.View;
-
-import androidx.recyclerview.widget.RecyclerView;
-import androidx.test.espresso.NoMatchingViewException;
-import androidx.test.espresso.ViewAssertion;
-import androidx.test.espresso.ViewInteraction;
-import androidx.test.espresso.matcher.ViewMatchers;
-import androidx.test.ext.junit.rules.ActivityScenarioRule;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-import androidx.test.filters.LargeTest;
-import androidx.test.rule.GrantPermissionRule;
-
-import org.junit.Rule;
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.TrackListActivity;
-import de.dennisguse.opentracks.settings.PreferencesUtils;
-
-@LargeTest
-@RunWith(AndroidJUnit4.class)
-public class EspressoCustomLayoutTest {
-
-    @Rule
-    public ActivityScenarioRule<TrackListActivity> mActivityTestRule = new ActivityScenarioRule<>(TrackListActivity.class);
-
-    @Rule
-    public GrantPermissionRule mGrantPermissionRule = GrantPermissionRule.grant(android.Manifest.permission.ACCESS_FINE_LOCATION);
-
-    @Test
-    public void customLayoutTest() {
-        // TrackListActivity: start recording
-        ViewInteraction trackControllerRecordButton = onView(ViewMatchers.withId(R.id.track_list_fab_action));
-        trackControllerRecordButton.perform(click());
-
-        // Get custom layout preferences and check all data fields are showed.
-        Layout layout = PreferencesUtils.getCustomLayout();
-
-        onView(withId(R.id.stats_recycler_view)).check(new RecyclerViewItemCountAssertion((int) layout.getFields().stream().filter(DataField::isVisible).count()));
-
-        // stop recording
-        ViewInteraction trackControllerStopButton = onView(withId(R.id.track_recording_fab_action));
-        trackControllerStopButton.perform(longClick());
-    }
-
-    private static class RecyclerViewItemCountAssertion implements ViewAssertion {
-        private final int expectedCount;
-
-        public RecyclerViewItemCountAssertion(int expectedCount) {
-            this.expectedCount = expectedCount;
-        }
-
-        @Override
-        public void check(View view, NoMatchingViewException noViewFoundException) {
-            if (noViewFoundException != null) {
-                throw noViewFoundException;
-            }
-
-            RecyclerView recyclerView = (RecyclerView) view;
-            RecyclerView.Adapter<?> adapter = recyclerView.getAdapter();
-            assertThat(adapter.getItemCount(), is(expectedCount));
-        }
-    }
-
-}
@@ -17,7 +17,7 @@ import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.settings.PreferencesUtils;

@RunWith(AndroidJUnit4.class)
-public class LayoutTest extends TestCase {
+public class RecordingLayoutTest extends TestCase {

    private final Context context = ApplicationProvider.getApplicationContext();
    private final Resources resources = ApplicationProvider.getApplicationContext().getResources();
@@ -28,21 +28,17 @@ public class LayoutTest extends TestCase {
        String csv = "running;2;" + context.getString(R.string.stats_custom_layout_speed_key) + ",1,1,0;" + context.getString(R.string.stats_custom_layout_distance_key) + ",1,0,0;" + context.getString(R.string.stats_custom_layout_altitude_key) + ",0,1,0;" + context.getString(R.string.stats_custom_layout_gain_key) + ",0,0,0;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), "running");
-        assertEquals(layout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getName(), "running");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);
        assertEquals(dataFieldList.size(), 4);
        assertEquals(dataFieldList.get(0).getKey(), context.getString(R.string.stats_custom_layout_speed_key));
        assertEquals(dataFieldList.get(1).getKey(), context.getString(R.string.stats_custom_layout_distance_key));
        assertEquals(dataFieldList.get(2).getKey(), context.getString(R.string.stats_custom_layout_altitude_key));
        assertEquals(dataFieldList.get(3).getKey(), context.getString(R.string.stats_custom_layout_gain_key));
-        assertEquals(dataFieldList.get(0).getTitle(), context.getString(R.string.stats_speed));
-        assertEquals(dataFieldList.get(1).getTitle(), context.getString(R.string.stats_distance));
-        assertEquals(dataFieldList.get(2).getTitle(), context.getString(R.string.stats_altitude));
-        assertEquals(dataFieldList.get(3).getTitle(), context.getString(R.string.stats_gain));
        assertTrue(dataFieldList.get(0).isVisible());
        assertTrue(dataFieldList.get(0).isPrimary());
        assertFalse(dataFieldList.get(0).isWide());
@@ -64,13 +60,13 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;speed,1,1;distance,0,0;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), PreferencesUtils.getDefaultLayoutName());
-        assertEquals(layout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
-        assertEquals(layout.getFields().size(), 0);
+        assertEquals(recordingLayout.getName(), PreferencesUtils.getDefaultLayoutName());
+        assertEquals(recordingLayout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
+        assertEquals(recordingLayout.getFields().size(), 0);
    }

    @Test
@@ -79,13 +75,13 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;2;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), PreferencesUtils.getDefaultLayoutName());
-        assertEquals(layout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
-        assertEquals(layout.getFields().size(), 0);
+        assertEquals(recordingLayout.getName(), PreferencesUtils.getDefaultLayoutName());
+        assertEquals(recordingLayout.getColumnsPerRow(), PreferencesUtils.getLayoutColumnsByDefault());
+        assertEquals(recordingLayout.getFields().size(), 0);
    }

    @Test
@@ -94,13 +90,13 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;2;speed,distance,total time;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), "Layout Name");
-        assertEquals(layout.getColumnsPerRow(), 2);
-        assertEquals(layout.getFields().size(), 0);
+        assertEquals(recordingLayout.getName(), "Layout Name");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 0);
    }

    @Test
@@ -109,27 +105,27 @@ public class LayoutTest extends TestCase {
        String csv1 = "Layout Name;2;speed,1,0;distance;";

        // when create a layout from CSV line
-        Layout layout = Layout.fromCsv(csv1, resources);
-        List<DataField> dataFieldList = layout.getFields();
+        RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(csv1, resources);
+        List<DataField> dataFieldList = recordingLayout.getFields();

        // then layout and data fields are built correctly
-        assertEquals(layout.getName(), "Layout Name");
-        assertEquals(layout.getColumnsPerRow(), 2);
-        assertEquals(layout.getFields().size(), 1);
+        assertEquals(recordingLayout.getName(), "Layout Name");
+        assertEquals(recordingLayout.getColumnsPerRow(), 2);
+        assertEquals(recordingLayout.getFields().size(), 1);
    }

    @Test
    public void testToCsv() {
        // given a layout's object
-        Layout layout = new Layout("Test Layout", 2);
-        layout.addField("key1", "Title 1", false, false, false);
-        layout.addField("key2", "Title 2", false, true, false);
-        layout.addField("key3", "Title 3", true, false, false);
-        layout.addField("key4", "Title 4", true, true, false);
-        layout.addField("key5", "Title 5", true, true, true);
+        RecordingLayout recordingLayout = new RecordingLayout("Test Layout", 2);
+        recordingLayout.addField(new DataField("key1", false, false, false));
+        recordingLayout.addField(new DataField("key2", false, true, false));
+        recordingLayout.addField(new DataField("key3", true, false, false));
+        recordingLayout.addField(new DataField("key4", true, true, false));
+        recordingLayout.addField(new DataField("key5", true, true, true));

        // when converts it to CSV
-        String csv = layout.toCsv();
+        String csv = recordingLayout.toCsv();

        // then csv is well built
        assertEquals(csv, "Test Layout;2;key1,0,0,0;key2,0,1,0;key3,1,0,0;key4,1,1,0;key5,1,1,1;");
@@ -138,15 +134,15 @@ public class LayoutTest extends TestCase {
    @Test
    public void testToCsv_columnsByDefault() {
        // given a layout's object
-        Layout layout = new Layout("Test Layout");
-        layout.addField("key1", "Title 1", false, false, false);
-        layout.addField("key2", "Title 2", false, true, false);
-        layout.addField("key3", "Title 3", true, false, false);
-        layout.addField("key4", "Title 4", true, true, false);
-        layout.addField("key5", "Title 5", true, true, true);
+        RecordingLayout recordingLayout = new RecordingLayout("Test Layout");
+        recordingLayout.addField(new DataField("key1", false, false, false));
+        recordingLayout.addField(new DataField("key2", false, true, false));
+        recordingLayout.addField(new DataField("key3", true, false, false));
+        recordingLayout.addField(new DataField("key4", true, true, false));
+        recordingLayout.addField(new DataField("key5", true, true, true));

        // when converts it to CSV
-        String csv = layout.toCsv();
+        String csv = recordingLayout.toCsv();

        // then csv is well built
        assertEquals(csv, "Test Layout;" + PreferencesUtils.getLayoutColumnsByDefault() + ";key1,0,0,0;key2,0,1,0;key3,1,0,0;key4,1,1,0;key5,1,1,1;");
@@ -12,7 +12,7 @@ import org.junit.runner.RunWith;

 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.ui.customRecordingLayout.DataField;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;

@RunWith(AndroidJUnit4.class)
 public class StatisticsUtilsTest extends TestCase {
@@ -44,16 +44,16 @@ public class StatisticsUtilsTest extends TestCase {
    @Test
    public void testFilterVisible() {
        // given
-        Layout layout = new Layout("profile");
-        layout.addField(new DataField("key1", "title1", true, true, false));
-        layout.addField(new DataField("key2", "title2", false, true, false));
-        layout.addField(new DataField("key3", "title3", true, true, false));
-        layout.addField(new DataField("key4", "title4", false, true, false));
-        layout.addField(new DataField("key5", "title5", true, true, false));
+        RecordingLayout recordingLayout = new RecordingLayout("profile");
+        recordingLayout.addField(new DataField("key1", true, true, false));
+        recordingLayout.addField(new DataField("key2", false, true, false));
+        recordingLayout.addField(new DataField("key3", true, true, false));
+        recordingLayout.addField(new DataField("key4", false, true, false));
+        recordingLayout.addField(new DataField("key5", true, true, false));

        // when
-        Layout resultTrue = StatisticsUtils.filterVisible(layout, true);
-        Layout resultFalse = StatisticsUtils.filterVisible(layout, false);
+        RecordingLayout resultTrue = StatisticsUtils.filterVisible(recordingLayout, true);
+        RecordingLayout resultFalse = StatisticsUtils.filterVisible(recordingLayout, false);

        // then
        assertEquals(resultTrue.getFields().size(), 3);
@@ -1,199 +0,0 @@
-package de.dennisguse.opentracks.viewmodels;
-
-import static org.mockito.Mockito.when;
-
-import android.content.Context;
-
-import androidx.test.core.app.ApplicationProvider;
-
-import junit.framework.TestCase;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-import org.mockito.Mock;
-import org.mockito.junit.MockitoJUnitRunner;
-
-import java.time.Duration;
-import java.util.List;
-
-import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.data.models.Cadence;
-import de.dennisguse.opentracks.data.models.Distance;
-import de.dennisguse.opentracks.data.models.HeartRate;
-import de.dennisguse.opentracks.data.models.Power;
-import de.dennisguse.opentracks.data.models.Track;
-import de.dennisguse.opentracks.services.RecordingData;
-import de.dennisguse.opentracks.settings.UnitSystem;
-import de.dennisguse.opentracks.stats.SensorStatistics;
-import de.dennisguse.opentracks.stats.TrackStatistics;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
-
-@RunWith(MockitoJUnitRunner.class)
-public class StatisticDataBuilderTest extends TestCase {
-
-    private final Context context = ApplicationProvider.getApplicationContext();
-
-    @Mock
-    private Track trackMock;
-
-    @Mock
-    private TrackStatistics trackStatisticsMock;
-
-    @Mock
-    private RecordingData recordingDataMock;
-
-    @Mock
-    private SensorStatistics sensorStatisticsMock;
-
-    @Test
-    public void testFromRecordingData() {
-        when(trackMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-        when(trackStatisticsMock.getTotalTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getMovingTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getTotalDistance()).thenReturn(Distance.of(0));
-        when(recordingDataMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-
-        // given
-        Layout layout = new Layout(context.getString(R.string.default_activity_default));
-        layout.addField(context.getString(R.string.stats_custom_layout_total_time_key), context.getString(R.string.stats_total_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_moving_time_key), context.getString(R.string.stats_moving_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_distance_key), context.getString(R.string.stats_distance), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_speed_key), context.getString(R.string.stats_speed), false, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_max_speed_key), context.getString(R.string.stats_max_speed), false, true, false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromRecordingData(context, recordingDataMock, layout, UnitSystem.METRIC);
-
-        // then
-        assertEquals(statisticDataList.size(), 3);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_total_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_moving_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_distance))));
-    }
-
-    @Test
-    public void testFromRecordingData_allFields() {
-        when(trackMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-        when(trackStatisticsMock.getTotalTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getMovingTime()).thenReturn(Duration.ofMillis(0));
-        when(trackStatisticsMock.getTotalDistance()).thenReturn(Distance.of(0));
-        when(recordingDataMock.getTrackStatistics()).thenReturn(trackStatisticsMock);
-
-        // given
-        Layout layout = new Layout(context.getString(R.string.default_activity_default));
-        layout.addField(context.getString(R.string.stats_custom_layout_total_time_key), context.getString(R.string.stats_total_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_moving_time_key), context.getString(R.string.stats_moving_time), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_distance_key), context.getString(R.string.stats_distance), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_speed_key), context.getString(R.string.stats_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_moving_speed_key), context.getString(R.string.stats_average_moving_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_speed_key), context.getString(R.string.stats_average_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_max_speed_key), context.getString(R.string.stats_max_speed), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_pace_key), context.getString(R.string.stats_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_moving_pace_key), context.getString(R.string.stats_average_moving_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_average_pace_key), context.getString(R.string.stats_average_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_fastest_pace_key), context.getString(R.string.stats_fastest_pace), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_altitude_key), context.getString(R.string.stats_altitude), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_gain_key), context.getString(R.string.stats_gain), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_loss_key), context.getString(R.string.stats_loss), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_coordinates_key), context.getString(R.string.stats_coordinates), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_heart_rate_key), context.getString(R.string.stats_sensors_heart_rate), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_cadence_key), context.getString(R.string.stats_sensors_cadence), true, true, false);
-        layout.addField(context.getString(R.string.stats_custom_layout_power_key), context.getString(R.string.stats_sensors_power), true, true, false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromRecordingData(context, recordingDataMock, layout, UnitSystem.METRIC);
-
-        // then
-        assertEquals(statisticDataList.size(), 18);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_total_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_moving_time))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_distance))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_moving_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_max_speed))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_moving_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_average_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_fastest_pace))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_altitude))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_gain))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_loss))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_coordinates))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_sensors_heart_rate))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_sensors_cadence))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.stats_sensors_power))));
-    }
-
-    @Test
-    public void testFromSensorStatistics_onlyHeartRate() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(true);
-        when(sensorStatisticsMock.getMaxHeartRate()).thenReturn(HeartRate.of(200f));
-        when(sensorStatisticsMock.getAvgHeartRate()).thenReturn(HeartRate.of(150f));
-        when(sensorStatisticsMock.hasCadence()).thenReturn(false);
-        when(sensorStatisticsMock.hasPower()).thenReturn(false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-
-        // then
-        assertEquals(statisticDataList.size(), 2);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_avg))));
-    }
-
-    @Test
-    public void testFromSensorStatistics_onlyCadence() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(false);
-        when(sensorStatisticsMock.hasCadence()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgCadence()).thenReturn(Cadence.of(90f));
-        when(sensorStatisticsMock.getMaxCadence()).thenReturn(Cadence.of(110f));
-        when(sensorStatisticsMock.hasPower()).thenReturn(false);
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-
-        // then
-        assertEquals(statisticDataList.size(), 2);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_avg))));
-    }
-
-    @Test
-    public void testFromSensorStatistics_onlyPower() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(false);
-        when(sensorStatisticsMock.hasCadence()).thenReturn(false);
-        when(sensorStatisticsMock.hasPower()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgPower()).thenReturn(Power.of(300f));
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_power_avg))));
-
-        // then
-        assertEquals(statisticDataList.size(), 1);
-    }
-
-    @Test
-    public void testFromSensorStatistics() {
-        when(sensorStatisticsMock.hasHeartRate()).thenReturn(true);
-        when(sensorStatisticsMock.getMaxHeartRate()).thenReturn(HeartRate.of(200f));
-        when(sensorStatisticsMock.getAvgHeartRate()).thenReturn(HeartRate.of(150f));
-        when(sensorStatisticsMock.hasCadence()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgCadence()).thenReturn(Cadence.of(90f));
-        when(sensorStatisticsMock.getMaxCadence()).thenReturn(Cadence.of(110f));
-        when(sensorStatisticsMock.hasPower()).thenReturn(true);
-        when(sensorStatisticsMock.getAvgPower()).thenReturn(Power.of(300f));
-
-        // when
-        List<StatisticData> statisticDataList = StatisticDataBuilder.fromSensorStatistics(context, sensorStatisticsMock);
-
-        // then
-        assertEquals(statisticDataList.size(), 5);
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_heart_rate_avg))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_max))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_cadence_avg))));
-        assertTrue(statisticDataList.stream().anyMatch(i -> i.getField().getTitle().equals(context.getString(R.string.sensor_state_power_avg))));
-    }
-}
@@ -1,11 +1,13 @@
 #time,trackpoint_type,latitude,longitude,altitude,accuracy_horizontal,accuracy_vertical,speed,altitude_gain,altitude_loss,sensor_distance,heartrate,cadence,power
 "2020-02-02T03:02:02+01:00","SEGMENT_START_MANUAL",,,,,,,,,,,,
-"2020-02-02T03:02:03+01:00","TRACKPOINT",3,3,10,10,,54,1,1,,,,
+"2020-02-02T03:02:03+01:00","TRACKPOINT",3,14,10,10,,54,1,1,,,,
 "2020-02-02T03:02:04+01:00","SENSORPOINT",,,,,,54,1,1,10,66,3,50
-"2020-02-02T03:02:05+01:00","TRACKPOINT",3,3,10,10,,18,0,0,2,66,3,50
-"2020-02-02T03:02:06+01:00","SEGMENT_END_MANUAL",,,,,,,,,,,,
-"2020-02-02T03:02:20+01:00","SEGMENT_START_MANUAL",,,,,,,,,,,,
-"2020-02-02T03:02:21+01:00","TRACKPOINT",3,3,10,10,,54,0,0,,,,
-"2020-02-02T03:02:22+01:00","SEGMENT_START_AUTOMATIC",3,3,10,10,,54,0,0,,,,
-"2020-02-02T03:02:23+01:00","TRACKPOINT",3,3,10,10,,54,0,0,,,,
-"2020-02-02T03:02:24+01:00","SEGMENT_END_MANUAL",,,,,,,,,,,,
+"2020-02-02T03:02:15+01:00","SENSORPOINT",,,,,,,,,,68,3,50
+"2020-02-02T03:02:16+01:00","SENSORPOINT",,,,,,18,,,2,69,3,50
+"2020-02-02T03:02:17+01:00","TRACKPOINT",3,14.001,10,10,,18,0,0,2,69,3,50
+"2020-02-02T03:02:18+01:00","SEGMENT_END_MANUAL",,,,,,,,,,,,
+"2020-02-02T03:03:20+01:00","SEGMENT_START_MANUAL",,,,,,,,,,,,
+"2020-02-02T03:03:21+01:00","TRACKPOINT",3,14.002,10,10,,54,0,0,,,,
+"2020-02-02T03:03:22+01:00","SEGMENT_START_AUTOMATIC",3,16,10,10,,54,0,0,,,,
+"2020-02-02T03:03:23+01:00","TRACKPOINT",3,16.001,10,10,,54,0,0,,,,
+"2020-02-02T03:03:24+01:00","SEGMENT_END_MANUAL",,,,,,,,,,,,
@@ -87,6 +87,17 @@ limitations under the License.
            </intent-filter>
        </activity>

+        <activity
+            android:name=".introduction.IntroductionActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:theme="@style/SplashTheme">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
        <activity android:name=".AboutActivity" />

        <activity
@@ -310,13 +321,8 @@ limitations under the License.

        <activity
            android:name=".TrackListActivity"
-            android:exported="true"
-            android:launchMode="singleTop"
-            android:theme="@style/SplashTheme">
+            android:exported="true">
            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
-                <category android:name="android.intent.category.LAUNCHER" />
-
                <action android:name="android.intent.action.SEARCH" />
            </intent-filter>
            <meta-data
@@ -354,7 +360,7 @@ limitations under the License.
            android:exported="false"
            android:finishOnTaskLaunch="true"
            android:launchMode="singleInstance"
-            android:process=":crash"/>
+            android:process=":crash" />

        <provider
            android:name=".data.ShareContentProvider"
@@ -33,4 +33,10 @@ public class AboutActivity extends AbstractActivity {
        viewBinding = AboutBinding.inflate(getLayoutInflater());
        return viewBinding.getRoot();
    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        viewBinding = null;
+    }
 }
@@ -38,7 +38,6 @@ import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.widget.SearchView;
 import androidx.core.content.ContextCompat;
-import androidx.core.splashscreen.SplashScreen;
 import androidx.cursoradapter.widget.ResourceCursorAdapter;
 import androidx.loader.app.LoaderManager;
 import androidx.loader.content.CursorLoader;
@@ -159,8 +158,6 @@ public class TrackListActivity extends AbstractTrackDeleteActivity implements Co

    @Override
    protected void onCreate(Bundle savedInstanceState) {
-        SplashScreen.installSplashScreen(this);
-
        super.onCreate(savedInstanceState);
        setDefaultKeyMode(DEFAULT_KEYS_SEARCH_LOCAL);

@@ -146,9 +146,7 @@ public class TrackRecordingActivity extends AbstractActivity implements ChooseAc
            finish();
            return true;
        });
-        viewBinding.trackRecordingFabAction.setOnClickListener((view) -> {
-            Toast.makeText(TrackRecordingActivity.this, getString(R.string.hold_to_stop), Toast.LENGTH_LONG).show();
-        });
+        viewBinding.trackRecordingFabAction.setOnClickListener((view) -> Toast.makeText(TrackRecordingActivity.this, getString(R.string.hold_to_stop), Toast.LENGTH_LONG).show());

        viewBinding.bottomAppBar.setNavigationIcon(R.drawable.ic_baseline_arrow_back_24);
        setSupportActionBar(viewBinding.bottomAppBar);
@@ -1,176 +0,0 @@
-package de.dennisguse.opentracks.adapters;
-
-import android.content.Context;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextClock;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.ui.customRecordingLayout.CustomLayoutFieldType;
-import de.dennisguse.opentracks.viewmodels.StatisticData;
-
-public class StatisticsAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
-
-    private List<StatisticData> statisticDataList;
-    private final Context context;
-
-    public StatisticsAdapter(Context context) {
-        this.context = context;
-        this.statisticDataList = new ArrayList<>();
-    }
-
-    @NonNull
-    @Override
-    public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        View view;
-        if (viewType == CustomLayoutFieldType.CLOCK.value()) {
-            view = LayoutInflater.from(parent.getContext()).inflate(R.layout.stats_clock_item, parent, false);
-            return new StatisticsAdapter.ViewClockHolder(view);
-        } else {
-            view = LayoutInflater.from(parent.getContext()).inflate(R.layout.stats_generic_item, parent, false);
-            return new StatisticsAdapter.ViewHolder(view);
-        }
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull RecyclerView.ViewHolder holder, int position) {
-        StatisticData statisticData = statisticDataList.get(position);
-        if (getItemViewType(position) == CustomLayoutFieldType.CLOCK.value()) {
-            StatisticsAdapter.ViewClockHolder viewHolder = (StatisticsAdapter.ViewClockHolder) holder;
-            viewHolder.setData(statisticData);
-        } else {
-            StatisticsAdapter.ViewHolder viewHolder = (StatisticsAdapter.ViewHolder) holder;
-            viewHolder.setData(statisticData);
-        }
-    }
-
-    @Override
-    public int getItemCount() {
-        if (statisticDataList == null) {
-            return 0;
-        } else {
-            return statisticDataList.size();
-        }
-    }
-
-    @Override
-    public int getItemViewType(int position) {
-        if (statisticDataList.get(position).getField().getType(context) == CustomLayoutFieldType.CLOCK) {
-            return CustomLayoutFieldType.CLOCK.value();
-        } else {
-            return CustomLayoutFieldType.GENERIC.value();
-        }
-    }
-
-    public boolean isItemWide(int position) {
-        return statisticDataList.get(position).getField().isWide();
-    }
-
-    public List<StatisticData> swapData(List<StatisticData> data) {
-        if (statisticDataList == data) {
-            return null;
-        }
-
-        statisticDataList = data;
-
-        if (data != null) {
-            this.notifyDataSetChanged();
-        }
-
-        return data;
-    }
-
-    public static class WithRecordedLayout extends StatisticsAdapter {
-        public WithRecordedLayout(Context context) {
-            super(context);
-        }
-
-        @NonNull
-        @Override
-        public RecyclerView.ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-            View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.stats_recorded_item, parent, false);
-            return new StatisticsAdapter.ViewRecordedHolder(view);
-        }
-    }
-
-    private class ViewHolder extends RecyclerView.ViewHolder {
-        final TextView value;
-        final TextView unit;
-        final TextView descMain;
-        final TextView descSecondary;
-
-        public ViewHolder(@NonNull View itemView) {
-            super(itemView);
-            value = itemView.findViewById(R.id.stats_value);
-            unit = itemView.findViewById(R.id.stats_unit);
-            descMain = itemView.findViewById(R.id.stats_description_main);
-            descSecondary = itemView.findViewById(R.id.stats_description_secondary);
-        }
-
-        public void setData(StatisticData statisticData) {
-            if (statisticData == null) {
-                return;
-            }
-            this.value.setText(statisticData.hasValue() ? statisticData.getValue() : context.getString(R.string.value_unknown));
-            this.value.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryValue : R.style.TextAppearance_OpenTracks_SecondaryValue);
-            this.unit.setText(statisticData.getUnit());
-            this.descMain.setText(statisticData.getField().getTitle());
-            this.descMain.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryHeader : R.style.TextAppearance_OpenTracks_SecondaryHeader);
-            if (statisticData.hasDescription()) {
-                this.descSecondary.setVisibility(View.VISIBLE);
-                this.descSecondary.setText(statisticData.getDescription());
-            } else {
-                this.descSecondary.setVisibility(View.GONE);
-            }
-        }
-    }
-
-    private class ViewClockHolder extends RecyclerView.ViewHolder {
-        final TextClock value;
-        final TextView descMain;
-
-        public ViewClockHolder(@NonNull View itemView) {
-            super(itemView);
-            value = itemView.findViewById(R.id.stats_clock);
-            descMain = itemView.findViewById(R.id.stats_description_main);
-        }
-
-        public void setData(StatisticData statisticData) {
-            if (statisticData == null) {
-                return;
-            }
-            this.value.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryValue : R.style.TextAppearance_OpenTracks_SecondaryValue);
-            this.descMain.setTextAppearance(context, statisticData.getField().isPrimary() ? R.style.TextAppearance_OpenTracks_PrimaryHeader : R.style.TextAppearance_OpenTracks_SecondaryHeader);
-        }
-    }
-
-    private class ViewRecordedHolder extends ViewHolder {
-
-        public ViewRecordedHolder(@NonNull View itemView) {
-            super(itemView);
-        }
-
-        public void setData(StatisticData statisticData) {
-            if (statisticData == null) {
-                return;
-            }
-            this.value.setText(statisticData.hasValue() ? statisticData.getValue() : context.getString(R.string.value_unknown));
-            this.unit.setText(statisticData.getUnit());
-            this.descMain.setText(statisticData.getField().getTitle());
-            if (statisticData.hasDescription()) {
-                this.descSecondary.setVisibility(View.VISIBLE);
-                this.descSecondary.setText(statisticData.getDescription());
-            } else {
-                this.descSecondary.setVisibility(View.GONE);
-            }
-        }
-    }
-}
@@ -27,7 +27,6 @@ import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteException;
 import android.database.sqlite.SQLiteQueryBuilder;
 import android.net.Uri;
-import android.os.Bundle;
 import android.text.TextUtils;
 import android.util.Log;

@@ -0,0 +1,33 @@
+package de.dennisguse.opentracks.data.models;
+
+import androidx.annotation.NonNull;
+
+import de.dennisguse.opentracks.R;
+
+public class HeartRateZones {
+
+    private final HeartRate max;
+
+    public HeartRateZones(@NonNull HeartRate max) {
+        this.max = max;
+    }
+
+    public int getColorForZone(HeartRate current) {
+        if (current != null) {
+            if (current.getBPM() >= max.getBPM() * 0.9) {
+                return R.color.heart_rate_zone_textcolor_5;
+            }
+            if (current.getBPM() >= max.getBPM() * 0.8) {
+                return R.color.heart_rate_zone_textcolor_4;
+            }
+            if (current.getBPM() >= max.getBPM() * 0.7) {
+                return R.color.heart_rate_zone_textcolor_3;
+            }
+            if (current.getBPM() >= max.getBPM() * 0.6) {
+                return R.color.heart_rate_zone_textcolor_2;
+            }
+        }
+
+        return R.color.heart_rate_zone_textcolor_1;
+    }
+}
@@ -385,10 +385,6 @@ public class TrackPoint {
        return this;
    }

-    public boolean hasSensorData() {
-        return hasHeartRate() || hasCadence() || hasPower();
-    }
-
    public boolean hasHeartRate() {
        return heartRate != null;
    }
@@ -31,11 +31,8 @@ import androidx.fragment.app.Fragment;
 import androidx.recyclerview.widget.GridLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;

-import java.util.List;
-
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.TrackRecordedActivity;
-import de.dennisguse.opentracks.adapters.StatisticsAdapter;
 import de.dennisguse.opentracks.data.ContentProviderUtils;
 import de.dennisguse.opentracks.data.models.DistanceFormatter;
 import de.dennisguse.opentracks.data.models.SpeedFormatter;
@@ -47,8 +44,6 @@ import de.dennisguse.opentracks.stats.SensorStatistics;
 import de.dennisguse.opentracks.stats.TrackStatistics;
 import de.dennisguse.opentracks.util.StringUtils;
 import de.dennisguse.opentracks.util.TrackIconUtils;
-import de.dennisguse.opentracks.viewmodels.StatisticData;
-import de.dennisguse.opentracks.viewmodels.StatisticDataBuilder;

 /**
 * A fragment to display track statistics to the user for a recorded {@link Track}.
@@ -72,7 +67,6 @@ public class StatisticsRecordedFragment extends Fragment {
    }

    private SensorStatistics sensorStatistics;
-    private StatisticsAdapter.WithRecordedLayout sensorsAdapter;

    private Track.Id trackId;
    @Nullable // Lazily loaded.
@@ -113,8 +107,6 @@ public class StatisticsRecordedFragment extends Fragment {

        trackId = getArguments().getParcelable(TRACK_ID_KEY);
        contentProviderUtils = new ContentProviderUtils(getContext());
-
-        sensorsAdapter = new StatisticsAdapter.WithRecordedLayout(getContext());
    }

    @Override
@@ -123,7 +115,7 @@ public class StatisticsRecordedFragment extends Fragment {

        RecyclerView sensorsRecyclerView = viewBinding.statsSensorsRecyclerView;
        sensorsRecyclerView.setLayoutManager(new GridLayoutManager(getContext(), 2));
-        sensorsRecyclerView.setAdapter(sensorsAdapter);
+//        sensorsRecyclerView.setAdapter(sensorsAdapter);

        return viewBinding.getRoot();
    }
@@ -261,10 +253,6 @@ public class StatisticsRecordedFragment extends Fragment {
        if (sensorStatistics == null) {
            return;
        }
-
-        List<StatisticData> sensorDataList = StatisticDataBuilder.fromSensorStatistics(getContext(), sensorStatistics);
-        if (sensorDataList.size() > 0) {
-            sensorsAdapter.swapData(sensorDataList);
-        }
+        //TODO
    }
 }
@@ -2,6 +2,7 @@ package de.dennisguse.opentracks.fragments;

 import android.content.SharedPreferences;
 import android.os.Bundle;
+import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -9,16 +10,14 @@ import android.view.ViewGroup;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.ViewModelProvider;
-import androidx.recyclerview.widget.DividerItemDecoration;
-import androidx.recyclerview.widget.GridLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
+import androidx.gridlayout.widget.GridLayout;

+import java.util.LinkedList;
 import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Callable;

 import de.dennisguse.opentracks.R;
-import de.dennisguse.opentracks.adapters.StatisticsAdapter;
 import de.dennisguse.opentracks.data.models.Track;
 import de.dennisguse.opentracks.databinding.StatisticsRecordingBinding;
 import de.dennisguse.opentracks.services.RecordingData;
@@ -26,9 +25,10 @@ import de.dennisguse.opentracks.services.TrackRecordingService;
 import de.dennisguse.opentracks.services.TrackRecordingServiceConnection;
 import de.dennisguse.opentracks.settings.PreferencesUtils;
 import de.dennisguse.opentracks.settings.UnitSystem;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
-import de.dennisguse.opentracks.viewmodels.StatisticData;
-import de.dennisguse.opentracks.viewmodels.StatisticsDataModel;
+import de.dennisguse.opentracks.ui.customRecordingLayout.DataField;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;
+import de.dennisguse.opentracks.viewmodels.Mapping;
+import de.dennisguse.opentracks.viewmodels.StatisticViewHolder;

 /**
 * A fragment to display track statistics to the user for a currently recording {@link Track}.
@@ -48,68 +48,37 @@ public class StatisticsRecordingFragment extends Fragment {

    private RecordingData recordingData = TrackRecordingService.NOT_RECORDING;

-    private Layout layout;
+    private final List<StatisticViewHolder<?>> viewHolders = new LinkedList<>();
+
+    private RecordingLayout recordingLayout;

    private StatisticsRecordingBinding viewBinding;
-    private StatisticsAdapter statisticsAdapter;
-    private GridLayoutManager gridLayoutManager;
-    private StatisticsDataModel viewModel;
-    private LiveData<List<StatisticData>> statisticsLiveData;

    private UnitSystem unitSystem = UnitSystem.defaultUnitSystem();

    private final SharedPreferences.OnSharedPreferenceChangeListener sharedPreferenceChangeListener = (sharedPreferences, key) -> {
-        boolean updateUInecessary = false;
-
        if (PreferencesUtils.isKey(R.string.stats_units_key, key)) {
-            updateUInecessary = true;
            unitSystem = PreferencesUtils.getUnitSystem();
+            updateDataOnUI();
        }

        if (PreferencesUtils.isKey(R.string.stats_custom_layouts_key, key) || PreferencesUtils.isKey(R.string.stats_custom_layout_selected_layout_key, key)) {
-            updateUInecessary = true;
-            layout = PreferencesUtils.getCustomLayout();
-            gridLayoutManager.setSpanCount(layout.getColumnsPerRow());
-        }
-
-        if (key != null && updateUInecessary && isResumed()) {
-            getActivity().runOnUiThread(this::updateUI);
+            onLayoutChanged(PreferencesUtils.getCustomLayout());
        }
    };

-    private final TrackRecordingServiceConnection.Callback bindChangedCallback = (service, unused) -> {
-        service.getRecordingDataObservable()
-                .observe(StatisticsRecordingFragment.this, this::onRecordingDataChanged);
-    };
+    private final TrackRecordingServiceConnection.Callback bindChangedCallback = (service, unused) -> service.getRecordingDataObservable()
+            .observe(StatisticsRecordingFragment.this, this::onRecordingDataChanged);

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        trackRecordingServiceConnection = new TrackRecordingServiceConnection(bindChangedCallback);
-
-        statisticsAdapter = new StatisticsAdapter(getContext());
    }

    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        viewBinding = StatisticsRecordingBinding.inflate(inflater, container, false);
-
-        RecyclerView recyclerView = viewBinding.statsRecyclerView;
-        recyclerView.addItemDecoration(new DividerItemDecoration(getContext(), RecyclerView.VERTICAL));
-        layout = PreferencesUtils.getCustomLayout();
-        gridLayoutManager = new GridLayoutManager(getContext(), layout.getColumnsPerRow());
-        gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
-            @Override
-            public int getSpanSize(int position) {
-                if (statisticsAdapter.isItemWide(position)) {
-                    return layout.getColumnsPerRow();
-                }
-                return 1;
-            }
-        });
-        recyclerView.setLayoutManager(gridLayoutManager);
-        recyclerView.setAdapter(statisticsAdapter);
-
        return viewBinding.getRoot();
    }

@@ -119,10 +88,6 @@ public class StatisticsRecordingFragment extends Fragment {

        PreferencesUtils.registerOnSharedPreferenceChangeListener(sharedPreferenceChangeListener);

-        viewModel = new ViewModelProvider(getActivity()).get(StatisticsDataModel.class);
-        statisticsLiveData = viewModel.getStatsData();
-        statisticsLiveData.observe(getActivity(), statsDataList -> statisticsAdapter.swapData(statsDataList));
-
        trackRecordingServiceConnection.startConnection(getContext());
    }

@@ -141,6 +106,7 @@ public class StatisticsRecordingFragment extends Fragment {
    @Override
    public void onDestroyView() {
        super.onDestroyView();
+        viewHolders.clear();
        viewBinding = null;
    }

@@ -148,17 +114,56 @@ public class StatisticsRecordingFragment extends Fragment {
    public void onDestroy() {
        super.onDestroy();
        trackRecordingServiceConnection = null;
-        viewModel = null;
-
-        if (statisticsLiveData != null) {
-            statisticsLiveData.removeObservers(getActivity());
-        }
-        statisticsLiveData = null;
    }

-    private void updateUI() {
-        if (isResumed()) {
-            viewModel.update(recordingData, layout, unitSystem);
+    private void onLayoutChanged(@NonNull RecordingLayout newRecordingLayout) {
+        if (newRecordingLayout.equals(recordingLayout)) {
+            return;
+        }
+        recordingLayout = newRecordingLayout;
+
+        viewBinding.statsLayout.setColumnCount(recordingLayout.getColumnsPerRow());
+
+        viewBinding.statsLayout.removeAllViews(); //Let's start from scratch
+        viewHolders.clear();
+
+        Map<String, Callable<StatisticViewHolder<?>>> m = Mapping.create(getContext());
+
+        int rowIndex = 0;
+        int columnIndex = 0;
+        for (int i = 0; i < recordingLayout.getFields().size(); i++) {
+            DataField dataField = recordingLayout.getFields().get(i);
+            GridLayout.LayoutParams param = new GridLayout.LayoutParams();
+            param.setGravity(Gravity.FILL_HORIZONTAL);
+            param.width = 0;
+
+            if (dataField.isWide()) {
+                rowIndex++;
+                param.columnSpec = GridLayout.spec(0, recordingLayout.getColumnsPerRow(), 1);
+                param.rowSpec = GridLayout.spec(rowIndex, 1, 1);
+                columnIndex = 0;
+                rowIndex++;
+            } else {
+                if (columnIndex >= recordingLayout.getColumnsPerRow()) {
+                    columnIndex = 0;
+                    rowIndex++;
+                }
+                param.columnSpec = GridLayout.spec(columnIndex, 1, 1);
+                param.rowSpec = GridLayout.spec(rowIndex, 1, 1);
+
+                columnIndex++;
+            }
+
+            try {
+                StatisticViewHolder<?> viewHolder = m.get(dataField.getKey()).call();
+                viewHolder.initialize(getContext(), getLayoutInflater());
+                viewHolder.configureUI(dataField);
+                viewHolders.add(viewHolder);
+
+                viewBinding.statsLayout.addView(viewHolder.getView(), param);
+            } catch (Exception e) {
+                throw new RuntimeException(e);
+            }
        }
    }

@@ -171,6 +176,12 @@ public class StatisticsRecordingFragment extends Fragment {
            sharedPreferenceChangeListener.onSharedPreferenceChanged(null, getString(R.string.stats_rate_key));
        }

-        updateUI();
+        updateDataOnUI();
+    }
+
+    private void updateDataOnUI() {
+        if (isResumed()) {
+            viewHolders.forEach(i -> i.onChanged(unitSystem, recordingData));
+        }
    }
 }
@@ -0,0 +1,93 @@
+package de.dennisguse.opentracks.introduction;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.core.splashscreen.SplashScreen;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.viewpager2.adapter.FragmentStateAdapter;
+
+import java.util.List;
+
+import de.dennisguse.opentracks.AbstractActivity;
+import de.dennisguse.opentracks.TrackListActivity;
+import de.dennisguse.opentracks.databinding.IntroductionBinding;
+import de.dennisguse.opentracks.settings.PreferencesUtils;
+import de.dennisguse.opentracks.util.IntentUtils;
+
+public class IntroductionActivity extends AbstractActivity {
+
+    private IntroductionBinding viewBinding;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        SplashScreen.installSplashScreen(this);
+
+        super.onCreate(savedInstanceState);
+
+        if (!PreferencesUtils.shouldShowIntroduction()) {
+            startActivity(new Intent(this, TrackListActivity.class));
+            finish();
+        }
+
+        viewBinding.nextButton.setOnClickListener(v -> {
+            int nextItemId = viewBinding.introductionViewPager.getCurrentItem() + 1;
+            if (nextItemId < viewBinding.introductionViewPager.getAdapter().getItemCount()) {
+                viewBinding.introductionViewPager.setCurrentItem(nextItemId);
+            } else {
+                PreferencesUtils.setShowIntroduction(false);
+                startActivity(IntentUtils.newIntent(this, TrackListActivity.class));
+                finish();
+            }
+        });
+        viewBinding.introductionViewPager.setAdapter(new CustomFragmentPagerAdapter(this));
+        viewBinding.introductionViewPager.setUserInputEnabled(false);
+    }
+
+    @Override
+    protected View getRootView() {
+        viewBinding = IntroductionBinding.inflate(getLayoutInflater());
+        return viewBinding.getRoot();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        viewBinding = null;
+    }
+
+    private static class CustomFragmentPagerAdapter extends FragmentStateAdapter {
+
+        private static final List<FragmentCreator> fragmentCreators = List.of(
+                WelcomeFragment::newInstance,
+                OSMDashboardFragment::newInstance
+        );
+
+        public CustomFragmentPagerAdapter(@NonNull FragmentActivity fa) {
+            super(fa);
+        }
+
+        @NonNull
+        @Override
+        public Fragment createFragment(int position) {
+            FragmentCreator fc = fragmentCreators.get(position);
+            if (fc != null) {
+                return fc.newInstance();
+            }
+
+            throw new RuntimeException("There isn't Fragment associated with the position: " + position);
+        }
+
+        @Override
+        public int getItemCount() {
+            return fragmentCreators.size();
+        }
+    }
+
+    private interface FragmentCreator {
+        Fragment newInstance();
+    }
+}
@@ -0,0 +1,32 @@
+package de.dennisguse.opentracks.introduction;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+
+import de.dennisguse.opentracks.databinding.OsmDashboardBinding;
+
+public class OSMDashboardFragment extends Fragment {
+
+    public static OSMDashboardFragment newInstance() {
+        return new OSMDashboardFragment();
+    }
+
+    private OsmDashboardBinding viewBinding;
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        viewBinding = OsmDashboardBinding.inflate(inflater, container, false);
+        return viewBinding.getRoot();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        viewBinding = null;
+    }
+}
@@ -0,0 +1,37 @@
+package de.dennisguse.opentracks.introduction;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+
+import de.dennisguse.opentracks.databinding.WelcomeBinding;
+
+public class WelcomeFragment extends Fragment {
+
+    public static WelcomeFragment newInstance() {
+        return new WelcomeFragment();
+    }
+
+    private WelcomeBinding viewBinding;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        viewBinding = WelcomeBinding.inflate(inflater, container, false);
+        return viewBinding.getRoot();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        viewBinding = null;
+    }
+}
@@ -44,7 +44,8 @@ import de.dennisguse.opentracks.ui.markers.MarkerUtils;
 import de.dennisguse.opentracks.util.StringUtils;

 /**
- * Convert {@link Track} incl. {@link Marker} and {@link TrackPoint} to KML.
+ * Convert {@link Track} incl. {@link Marker} and {@link TrackPoint} to KML version 2.3.
+ * https://docs.opengeospatial.org/is/12-007r2/12-007r2.html
 *
 * @author Sandor Dornbush
 * @author Rodrigo Damazio
@@ -58,6 +59,8 @@ public class KMLTrackExporter implements TrackExporter {
    private static final String TRACK_STYLE = "track";
    private static final String SCHEMA_ID = "schema";

+    public static final String EXTENDED_DATA_TYPE_CATEGORY = "type";
+
    public static final String EXTENDED_DATA_TYPE_SPEED = "speed";
    public static final String EXTENDED_DATA_TYPE_DISTANCE = "distance";
    public static final String EXTENDED_DATA_TYPE_CADENCE = "cadence";
@@ -224,11 +227,13 @@ public class KMLTrackExporter implements TrackExporter {
    private void writeHeader(Track[] tracks) {
        if (printWriter != null) {
            printWriter.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
-            printWriter.println("<kml xmlns=\"http://www.opengis.net/kml/2.2\"");
-            printWriter.println("xmlns:gx=\"http://www.google.com/kml/ext/2.2\"");
+            printWriter.println("<kml xmlns=\"http://www.opengis.net/kml/2.3\"");
            printWriter.println("xmlns:atom=\"http://www.w3.org/2005/Atom\"");
            printWriter.println("xmlns:opentracks=\"http://opentracksapp.com/xmlschemas/v1\">");
-            //TODO ADD xsi:schemaLocation here!
+            //TODO ADD xsi:schemaLocation for atom
+            printWriter.println("xsi:schemaLocation=" +
+                    "\"http://www.opengis.net/kml/2.3 http://schemas.opengis.net/kml/2.3/ogckml23.xsd"
+                    + " http://opentracksapp.com/xmlschemas/v1 http://opentracksapp.com/xmlschemas/OpenTracks_v1.xsd\">");

            printWriter.println("<Document>");
            printWriter.println("<open>1</open>");
@@ -309,16 +314,16 @@ public class KMLTrackExporter implements TrackExporter {

            printWriter.println("<styleUrl>#" + TRACK_STYLE + "</styleUrl>");
            writeCategory(track.getCategory());
-            printWriter.println("<gx:MultiTrack>");
+            printWriter.println("<MultiTrack>");
            printWriter.println("<altitudeMode>absolute</altitudeMode>");
-            printWriter.println("<gx:interpolate>1</gx:interpolate>");
+            printWriter.println("<interpolate>1</interpolate>");
        }
    }


    private void writeEndTrack() {
        if (printWriter != null) {
-            printWriter.println("</gx:MultiTrack>");
+            printWriter.println("</MultiTrack>");
            printWriter.println("</Placemark>");
        }
    }
@@ -326,7 +331,7 @@ public class KMLTrackExporter implements TrackExporter {
    @VisibleForTesting
    void writeOpenSegment() {
        if (printWriter != null) {
-            printWriter.println("<gx:Track>");
+            printWriter.println("<Track>");
            speedList.clear();
            distanceList.clear();
            powerList.clear();
@@ -373,7 +378,7 @@ public class KMLTrackExporter implements TrackExporter {
            }
            printWriter.println("</SchemaData>");
            printWriter.println("</ExtendedData>");
-            printWriter.println("</gx:Track>");
+            printWriter.println("</Track>");
        }
    }

@@ -383,9 +388,9 @@ public class KMLTrackExporter implements TrackExporter {
            printWriter.println("<when>" + getTime(zoneOffset, trackPoint.getLocation()) + "</when>");

            if (trackPoint.hasLocation()) {
-                printWriter.println("<gx:coord>" + getCoordinates(trackPoint.getLocation(), " ") + "</gx:coord>");
+                printWriter.println("<coord>" + getCoordinates(trackPoint.getLocation(), " ") + "</coord>");
            } else {
-                printWriter.println("<gx:coord/>");
+                printWriter.println("<coord/>");
            }
            speedList.add(trackPoint.hasSpeed() ? (float) trackPoint.getSpeed().toMPS() : null);

@@ -408,16 +413,16 @@ public class KMLTrackExporter implements TrackExporter {
     * @param name the name of the simple array data
     */
    private void writeSimpleArrayData(List<Float> list, String name) {
-        printWriter.println("<gx:SimpleArrayData name=\"" + name + "\">");
+        printWriter.println("<SimpleArrayData name=\"" + name + "\">");
        for (int i = 0; i < list.size(); i++) {
            Float value = list.get(i);
            if (value == null) {
-                printWriter.println("<gx:value />");
+                printWriter.println("<value />");
            } else {
-                printWriter.println("<gx:value>" + SENSOR_DATA_FORMAT.format(value) + "</gx:value>");
+                printWriter.println("<value>" + SENSOR_DATA_FORMAT.format(value) + "</value>");
            }
        }
-        printWriter.println("</gx:SimpleArrayData>");
+        printWriter.println("</SimpleArrayData>");
    }

    /**
@@ -521,7 +526,7 @@ public class KMLTrackExporter implements TrackExporter {
            return;
        }
        printWriter.println("<ExtendedData>");
-        printWriter.println("<Data name=\"type\"><value>" + StringUtils.formatCData(category) + "</value></Data>");
+        printWriter.println("<Data name=\"" + EXTENDED_DATA_TYPE_CATEGORY + "\"><value>" + StringUtils.formatCData(category) + "</value></Data>");
        printWriter.println("</ExtendedData>");
    }

@@ -554,8 +559,8 @@ public class KMLTrackExporter implements TrackExporter {
     * @param extendedDataType the extended data display name
     */
    private void writeSimpleArrayStyle(String name, String extendedDataType) {
-        printWriter.println("<gx:SimpleArrayField name=\"" + name + "\" type=\"float\">");
+        printWriter.println("<SimpleArrayField name=\"" + name + "\" type=\"float\">");
        printWriter.println("<displayName>" + StringUtils.formatCData(extendedDataType) + "</displayName>");
-        printWriter.println("</gx:SimpleArrayField>");
+        printWriter.println("</SimpleArrayField>");
    }
 }
@@ -11,7 +11,6 @@ import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;

 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 import java.util.stream.Collectors;

@@ -48,7 +47,14 @@ public class ImportViewModel extends AndroidViewModel implements ImportServiceRe
    }

    private void loadData(List<DocumentFile> documentFiles) {
-        List<DocumentFile> fileList = documentFiles.stream().map(FileUtils::getFiles).flatMap(Collection::stream).collect(Collectors.toList());
+        List<ArrayList<DocumentFile>> nestedFileList = documentFiles.stream()
+                .map(FileUtils::getFiles)
+                // TODO flatMap(Collection::stream) fails with ClassCastException; try in the future again
+                .collect(Collectors.toList());
+
+        List<DocumentFile> fileList = new ArrayList<>();
+        nestedFileList.forEach(fileList::addAll);
+
        summary.totalCount = fileList.size();
        filesToImport.addAll(fileList);
        importNextFile();
@@ -41,7 +41,7 @@ import de.dennisguse.opentracks.io.file.exporter.KMLTrackExporter;
 import de.dennisguse.opentracks.util.StringUtils;

 /**
- * Imports a KML file.
+ * Imports a KML file; preferred version: KML2.3, but also supports KML2.2.
 *
 * @author Jimmy Shih
 */
@@ -54,18 +54,31 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
    private static final String TAG_COORDINATES = "coordinates";
    private static final String TAG_DESCRIPTION = "description";
    private static final String TAG_ICON = "icon";
-    private static final String TAG_GX_COORD = "gx:coord";
-    private static final String TAG_GX_MULTI_TRACK = "gx:MultiTrack";
-    private static final String TAG_GX_SIMPLE_ARRAY_DATA = "gx:SimpleArrayData";
-    private static final String TAG_GX_TRACK = "gx:Track";
-    private static final String TAG_GX_VALUE = "gx:value";
+
+    private static final String TAG_COORD = "coord";
+    private static final String TAG_KML22_COORD = "gx:coord";
+
+    private static final String TAG_MULTI_TRACK = "MultiTrack";
+    private static final String TAG_KML22_MULTI_TRACK = "gx:MultiTrack";
+
+    private static final String TAG_DATA_CATEGORY = "Data"; //used for Track.category
+
+    private static final String TAG_SIMPLE_ARRAY_DATA = "SimpleArrayData";
+    private static final String TAG_KML22_SIMPLE_ARRAY_DATA = "gx:SimpleArrayData";
+
+    private static final String TAG_TRACK = "Track";
+    private static final String TAG_KML22_TRACK = "gx:Track";
+
+    private static final String TAG_VALUE = "value";
+    private static final String TAG_KML22_VALUE = "gx:value";
+
    private static final String TAG_HREF = "href";
    private static final String TAG_KML = "kml";
    private static final String TAG_NAME = "name";
    private static final String TAG_PHOTO_OVERLAY = "PhotoOverlay";
    private static final String TAG_PLACEMARK = "Placemark";
    private static final String TAG_STYLE_URL = "styleUrl";
-    private static final String TAG_VALUE = "value";
+    //    private static final String TAG_VALUE = "value"; TODO
    private static final String TAG_WHEN = "when";
    private static final String TAG_UUID = "opentracks:trackid";

@@ -81,7 +94,7 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
    private final ArrayList<Instant> whenList = new ArrayList<>();
    private final ArrayList<Location> locationList = new ArrayList<>();

-    private String extendedDataType;
+    private String dataType;
    private final ArrayList<Float> sensorSpeedList = new ArrayList<>();
    private final ArrayList<Float> sensorDistanceList = new ArrayList<>();
    private final ArrayList<Float> sensorCadenceList = new ArrayList<>();
@@ -128,17 +141,21 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
                // Note that a track is contained in a Placemark, calling onMarkerStart will clear various track variables like name, category, and description.
                onMarkerStart();
                break;
-            case TAG_GX_MULTI_TRACK:
+            case TAG_MULTI_TRACK:
+            case TAG_KML22_MULTI_TRACK:
                trackImporter.newTrack();
                break;
-            case TAG_GX_TRACK:
+            case TAG_TRACK:
+            case TAG_KML22_TRACK:
                if (trackImporter == null) {
-                    throw new SAXException("No " + TAG_GX_MULTI_TRACK);
+                    throw new SAXException("Missing " + TAG_MULTI_TRACK);
                }
                onTrackSegmentStart();
                break;
-            case TAG_GX_SIMPLE_ARRAY_DATA:
-                onExtendedDataStart(attributes);
+            case TAG_DATA_CATEGORY:
+            case TAG_SIMPLE_ARRAY_DATA:
+            case TAG_KML22_SIMPLE_ARRAY_DATA:
+                dataType = attributes.getValue(ATTRIBUTE_NAME);
                break;
        }
    }
@@ -162,18 +179,28 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
            case TAG_COORDINATES:
                onMarkerLocationEnd();
                break;
-            case TAG_GX_MULTI_TRACK:
+            case TAG_MULTI_TRACK:
+            case TAG_KML22_MULTI_TRACK:
                trackImporter.setTrack(context, name, uuid, description, category, icon, zoneOffset);
                zoneOffset = null;
                break;
-            case TAG_GX_TRACK:
+            case TAG_TRACK:
+            case TAG_KML22_TRACK:
                onTrackSegmentEnd();
                break;
-            case TAG_GX_COORD:
+            case TAG_COORD:
+            case TAG_KML22_COORD:
                onCoordEnded();
                break;
-            case TAG_GX_VALUE:
-                onExtendedDataValueEnd();
+            case TAG_VALUE:
+            case TAG_KML22_VALUE:
+                if (KMLTrackExporter.EXTENDED_DATA_TYPE_CATEGORY.equals(dataType)) {
+                    if (content != null) {
+                        category = content.trim();
+                    }
+                } else {
+                    onExtendedDataValueEnd();
+                }
                break;
            case TAG_NAME:
                if (content != null) {
@@ -195,11 +222,6 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
                    icon = content.trim();
                }
                break;
-            case TAG_VALUE:
-                if (content != null) {
-                    category = content.trim();
-                }
-                break;
            case TAG_WHEN:
                if (content != null) {
                    try {
@@ -401,11 +423,6 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
        return location;
    }

-
-    private void onExtendedDataStart(Attributes attributes) {
-        extendedDataType = attributes.getValue(ATTRIBUTE_NAME);
-    }
-
    private void onExtendedDataValueEnd() throws SAXException {
        Float value = null;
        if (content != null) {
@@ -414,11 +431,11 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
                try {
                    value = Float.parseFloat(content);
                } catch (NumberFormatException e) {
-                    throw new SAXException(createErrorMessage("Unable to parse gx:value:" + content), e);
+                    throw new SAXException(createErrorMessage("Unable to parse value:" + content), e);
                }
            }
        }
-        switch (extendedDataType) {
+        switch (dataType) {
            case KMLTrackExporter.EXTENDED_DATA_TYPE_SPEED:
                sensorSpeedList.add(value);
                break;
@@ -447,7 +464,7 @@ public class KmlTrackImporter extends DefaultHandler implements XMLImporter.Trac
                accuracyVertical.add(value);
                break;
            default:
-                Log.w(TAG, "Data from extended data " + extendedDataType + " is not (yet) supported.");
+                Log.w(TAG, "Data from extended data " + dataType + " is not (yet) supported.");
        }
    }

@@ -25,7 +25,6 @@ import de.dennisguse.opentracks.data.models.Marker;
 import de.dennisguse.opentracks.data.models.Speed;
 import de.dennisguse.opentracks.data.models.Track;
 import de.dennisguse.opentracks.data.models.TrackPoint;
-import de.dennisguse.opentracks.settings.PreferencesUtils;
 import de.dennisguse.opentracks.stats.TrackStatistics;
 import de.dennisguse.opentracks.stats.TrackStatisticsUpdater;
 import de.dennisguse.opentracks.ui.markers.MarkerUtils;
@@ -30,16 +30,11 @@ import android.util.Log;

 import androidx.annotation.NonNull;

+import java.util.List;
+import java.util.Optional;
 import java.util.UUID;

-import de.dennisguse.opentracks.data.models.Cadence;
-import de.dennisguse.opentracks.data.models.HeartRate;
-import de.dennisguse.opentracks.data.models.Power;
 import de.dennisguse.opentracks.sensors.sensorData.SensorData;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataCycling;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataHeartRate;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataRunning;

 /**
 * Manages connection to a Bluetooth LE sensor and subscribes for onChange-notifications.
@@ -51,8 +46,7 @@ public abstract class BluetoothConnectionManager<DataType> {

    private final SensorDataObserver observer;

-    private final UUID serviceUUUID;
-    private final UUID measurementUUID;
+    private final List<ServiceMeasurementUUID> serviceMeasurementUUIDs;
    private BluetoothGatt bluetoothGatt;

    private final BluetoothGattCallback connectCallback = new BluetoothGattCallback() {
@@ -81,15 +75,24 @@ public abstract class BluetoothConnectionManager<DataType> {

        @Override
        public void onServicesDiscovered(@NonNull BluetoothGatt gatt, int status) {
-            BluetoothGattService service = gatt.getService(serviceUUUID);
-            if (service == null) {
-                Log.e(TAG, "Could not get service for address=" + gatt.getDevice().getAddress() + " serviceUUID=" + serviceUUUID);
+            BluetoothGattService gattService = null;
+            ServiceMeasurementUUID serviceMeasurement = null;
+            for (ServiceMeasurementUUID s : serviceMeasurementUUIDs) {
+                gattService = gatt.getService(s.getServiceUUID());
+                if (gattService != null) {
+                    serviceMeasurement = s;
+                    break;
+                }
+            }
+
+            if (gattService == null) {
+                Log.e(TAG, "Could not get gattService for address=" + gatt.getDevice().getAddress() + " serviceUUID=" + serviceMeasurement);
                return;
            }

-            BluetoothGattCharacteristic characteristic = service.getCharacteristic(measurementUUID);
+            BluetoothGattCharacteristic characteristic = gattService.getCharacteristic(serviceMeasurement.getMeasurementUUID());
            if (characteristic == null) {
-                Log.e(TAG, "Could not get BluetoothCharacteristic for address=" + gatt.getDevice().getAddress() + " serviceUUID=" + serviceUUUID + " characteristicUUID=" + measurementUUID);
+                Log.e(TAG, "Could not get BluetoothCharacteristic for address=" + gatt.getDevice().getAddress() + " serviceUUID=" + serviceMeasurement.getServiceUUID() + " characteristicUUID=" + serviceMeasurement.getMeasurementUUID());
                return;
            }
            gatt.setCharacteristicNotification(characteristic, true);
@@ -108,8 +111,16 @@ public abstract class BluetoothConnectionManager<DataType> {

        @Override
        public void onCharacteristicChanged(BluetoothGatt gatt, @NonNull BluetoothGattCharacteristic characteristic) {
-            Log.d(TAG, "Received data from " + gatt.getDevice().getAddress());
-            SensorData<DataType> sensorData = parsePayload(gatt.getDevice().getName(), gatt.getDevice().getAddress(), characteristic);
+            UUID serviceUUID = characteristic.getService().getUuid();
+            Log.d(TAG, "Received data from " + gatt.getDevice().getAddress() + " with service " + serviceUUID + " and characteristics " + characteristic.getUuid());
+            Optional<ServiceMeasurementUUID> serviceMeasurementUUID = serviceMeasurementUUIDs.stream()
+                    .filter(s -> s.getServiceUUID().equals(characteristic.getService().getUuid())).findFirst();
+            if (serviceMeasurementUUID.isEmpty()) {
+                Log.e(TAG, "Unknown service UUID; not supported?");
+                return;
+            }
+
+            SensorData<DataType> sensorData = parsePayload(serviceMeasurementUUID.get(), gatt.getDevice().getName(), gatt.getDevice().getAddress(), characteristic);
            if (sensorData != null) {
                Log.d(TAG, "Decoded data from " + gatt.getDevice().getAddress() + ": " + sensorData);
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
@@ -122,15 +133,20 @@ public abstract class BluetoothConnectionManager<DataType> {
        }
    };

-    BluetoothConnectionManager(UUID serviceUUUID, UUID measurementUUID, SensorDataObserver observer) {
-        this.serviceUUUID = serviceUUUID;
-        this.measurementUUID = measurementUUID;
+    BluetoothConnectionManager(ServiceMeasurementUUID serviceUUUID, SensorDataObserver observer) {
+        this.serviceMeasurementUUIDs = List.of(serviceUUUID);
+        this.observer = observer;
+    }
+
+    BluetoothConnectionManager(List<ServiceMeasurementUUID> serviceUUUID, SensorDataObserver observer) {
+        this.serviceMeasurementUUIDs = serviceUUUID;
        this.observer = observer;
    }

    synchronized void connect(Context context, @NonNull BluetoothDevice device) {
        if (bluetoothGatt != null) {
            Log.w(TAG, "Already connected; ignoring.");
+            return;
        }

        Log.d(TAG, "Connecting to: " + device);
@@ -172,114 +188,7 @@ public abstract class BluetoothConnectionManager<DataType> {
    /**
     * @return null if data could not be parsed.
     */
-    protected abstract SensorData<DataType> parsePayload(String sensorName, String address, BluetoothGattCharacteristic characteristic);
-
-    public static class HeartRateConnectionManager extends BluetoothConnectionManager<HeartRate> {
-
-        HeartRateConnectionManager(@NonNull SensorDataObserver observer) {
-            super(BluetoothUtils.HEART_RATE_SERVICE_UUID, BluetoothUtils.HEART_RATE_MEASUREMENT_CHAR_UUID, observer);
-        }
-
-        @Override
-        protected SensorDataHeartRate createEmptySensorData(String address) {
-            return new SensorDataHeartRate(address);
-        }
-
-        @Override
-        protected SensorDataHeartRate parsePayload(String sensorName, String address, BluetoothGattCharacteristic characteristic) {
-            Integer heartRate = BluetoothUtils.parseHeartRate(characteristic);
-
-            return heartRate != null ? new SensorDataHeartRate(address, sensorName, HeartRate.of(heartRate)) : null;
-        }
-    }
-
-    public static class CyclingCadence extends BluetoothConnectionManager<Cadence> {
-
-        CyclingCadence(SensorDataObserver observer) {
-            super(BluetoothUtils.CYCLING_SPEED_CADENCE_SERVICE_UUID, BluetoothUtils.CYCLING_SPEED_CADENCE_MEASUREMENT_CHAR_UUID, observer);
-        }
-
-        @Override
-        protected SensorDataCycling.CyclingCadence createEmptySensorData(String address) {
-            return new SensorDataCycling.CyclingCadence(address);
-        }
-
-        @Override
-        protected SensorDataCycling.CyclingCadence parsePayload(String sensorName, String address, BluetoothGattCharacteristic characteristic) {
-            SensorDataCycling.CadenceAndSpeed cadenceAndSpeed = BluetoothUtils.parseCyclingCrankAndWheel(address, sensorName, characteristic);
-            if (cadenceAndSpeed == null) {
-                return null;
-            }
-
-            if (cadenceAndSpeed.getCadence() != null) {
-                return cadenceAndSpeed.getCadence();
-            }
-
-            return null;
-        }
-    }
-
-    public static class CyclingDistanceSpeed extends BluetoothConnectionManager<SensorDataCycling.DistanceSpeed.Data> {
-
-        CyclingDistanceSpeed(SensorDataObserver observer) {
-            super(BluetoothUtils.CYCLING_SPEED_CADENCE_SERVICE_UUID, BluetoothUtils.CYCLING_SPEED_CADENCE_MEASUREMENT_CHAR_UUID, observer);
-        }
-
-        @Override
-        protected SensorDataCycling.DistanceSpeed createEmptySensorData(String address) {
-            return new SensorDataCycling.DistanceSpeed(address);
-        }
-
-        @Override
-        protected SensorDataCycling.DistanceSpeed parsePayload(String sensorName, String address, BluetoothGattCharacteristic characteristic) {
-            SensorDataCycling.CadenceAndSpeed cadenceAndSpeed = BluetoothUtils.parseCyclingCrankAndWheel(address, sensorName, characteristic);
-            if (cadenceAndSpeed == null) {
-                return null;
-            }
-
-            if (cadenceAndSpeed.getDistanceSpeed() != null) {
-                return cadenceAndSpeed.getDistanceSpeed();
-            }
-
-            return null;
-        }
-    }
-
-    public static class CyclingPower extends BluetoothConnectionManager<Power> {
-
-        CyclingPower(@NonNull SensorDataObserver observer) {
-            super(BluetoothUtils.CYCLING_POWER_UUID, BluetoothUtils.CYCLING_POWER_MEASUREMENT_CHAR_UUID, observer);
-        }
-
-        @Override
-        protected SensorDataCyclingPower createEmptySensorData(String address) {
-            return new SensorDataCyclingPower(address);
-        }
-
-        @Override
-        protected SensorDataCyclingPower parsePayload(String sensorName, String address, BluetoothGattCharacteristic characteristic) {
-            Integer cyclingPower = BluetoothUtils.parseCyclingPower(characteristic);
-
-            return cyclingPower != null ? new SensorDataCyclingPower(address, sensorName, Power.of(cyclingPower)) : null;
-        }
-    }
-
-    public static class RunningSpeedAndCadence extends BluetoothConnectionManager<SensorDataRunning.Data> {
-
-        RunningSpeedAndCadence(@NonNull SensorDataObserver observer) {
-            super(BluetoothUtils.RUNNING_RUNNING_SPEED_CADENCE_UUID, BluetoothUtils.RUNNING_RUNNING_SPEED_CADENCE_CHAR_UUID, observer);
-        }
-
-        @Override
-        protected SensorDataRunning createEmptySensorData(String address) {
-            return new SensorDataRunning(address);
-        }
-
-        @Override
-        protected SensorDataRunning parsePayload(String sensorName, String address, BluetoothGattCharacteristic characteristic) {
-            return BluetoothUtils.parseRunningSpeedAndCadence(address, sensorName, characteristic);
-        }
-    }
+    protected abstract SensorData<DataType> parsePayload(@NonNull ServiceMeasurementUUID serviceMeasurementUUID, String sensorName, String address, @NonNull BluetoothGattCharacteristic characteristic);

    interface SensorDataObserver {

@@ -31,7 +31,8 @@ import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.data.models.Distance;
 import de.dennisguse.opentracks.data.models.TrackPoint;
 import de.dennisguse.opentracks.sensors.sensorData.SensorData;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataCycling;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadence;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingDistanceSpeed;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataRunning;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataSet;
 import de.dennisguse.opentracks.settings.PreferencesUtils;
@@ -55,7 +56,7 @@ public class BluetoothRemoteSensorManager implements BluetoothConnectionManager.

    private static final String TAG = BluetoothRemoteSensorManager.class.getSimpleName();

-    public static final Duration MAX_SENSOR_DATE_SET_AGE_MS = Duration.ofSeconds(5);
+    public static final Duration MAX_SENSOR_DATE_SET_AGE = Duration.ofSeconds(5);

    private final BluetoothAdapter bluetoothAdapter;
    private final Context context;
@@ -64,11 +65,11 @@ public class BluetoothRemoteSensorManager implements BluetoothConnectionManager.

    private Distance preferenceWheelCircumference;

-    private final BluetoothConnectionManager.HeartRateConnectionManager heartRate = new BluetoothConnectionManager.HeartRateConnectionManager(this);
-    private final BluetoothConnectionManager.CyclingCadence cyclingCadence = new BluetoothConnectionManager.CyclingCadence(this);
-    private final BluetoothConnectionManager.CyclingDistanceSpeed cyclingSpeed = new BluetoothConnectionManager.CyclingDistanceSpeed(this);
-    private final BluetoothConnectionManager.CyclingPower cyclingPower = new BluetoothConnectionManager.CyclingPower(this);
-    private final BluetoothConnectionManager.RunningSpeedAndCadence runningSpeedAndCadence = new BluetoothConnectionManager.RunningSpeedAndCadence(this);
+    private final BluetoothRemoteSensorManagerHeartRate heartRate = new BluetoothRemoteSensorManagerHeartRate(this);
+    private final BluetoothRemoteSensorManagerCyclingCadence cyclingCadence = new BluetoothRemoteSensorManagerCyclingCadence(this);
+    private final BluetoothRemoteSensorManagerCyclingDistanceSpeed cyclingSpeed = new BluetoothRemoteSensorManagerCyclingDistanceSpeed(this);
+    private final BluetoothRemoteSensorManagerCyclingPower cyclingPower = new BluetoothRemoteSensorManagerCyclingPower(this);
+    private final BluetoothRemoteSensorManagerRunningSpeedAndCadence runningSpeedAndCadence = new BluetoothRemoteSensorManagerRunningSpeedAndCadence(this);

    private final SensorDataSet sensorDataSet = new SensorDataSet();

@@ -186,24 +187,24 @@ public class BluetoothRemoteSensorManager implements BluetoothConnectionManager.

    @Override
    public synchronized void onChanged(SensorData<?> sensorData) {
-        if (sensorData instanceof SensorDataCycling.CyclingCadence) {
-            SensorDataCycling.CyclingCadence previous = sensorDataSet.getCyclingCadence();
+        if (sensorData instanceof SensorDataCyclingCadence) {
+            SensorDataCyclingCadence previous = sensorDataSet.getCyclingCadence();
            Log.d(TAG, "Previous: " + previous + "; current: " + sensorData);

            if (sensorData.equals(previous)) {
                Log.d(TAG, "onChanged: cadence data repeated.");
                return;
            }
-            ((SensorDataCycling.CyclingCadence) sensorData).compute(previous);
+            ((SensorDataCyclingCadence) sensorData).compute(previous);
        }
-        if (sensorData instanceof SensorDataCycling.DistanceSpeed) {
-            SensorDataCycling.DistanceSpeed previous = sensorDataSet.getCyclingDistanceSpeed();
+        if (sensorData instanceof SensorDataCyclingDistanceSpeed) {
+            SensorDataCyclingDistanceSpeed previous = sensorDataSet.getCyclingDistanceSpeed();
            Log.d(TAG, "Previous: " + previous + "; Current" + sensorData);
            if (sensorData.equals(previous)) {
                Log.d(TAG, "onChanged: cycling speed data repeated.");
                return;
            }
-            ((SensorDataCycling.DistanceSpeed) sensorData).compute(previous, preferenceWheelCircumference);
+            ((SensorDataCyclingDistanceSpeed) sensorData).compute(previous, preferenceWheelCircumference);
        }
        if (sensorData instanceof SensorDataRunning) {
            SensorDataRunning previous = sensorDataSet.getRunningDistanceSpeedCadence();
@@ -0,0 +1,47 @@
+package de.dennisguse.opentracks.sensors;
+
+import android.bluetooth.BluetoothGattCharacteristic;
+import android.util.Log;
+
+import de.dennisguse.opentracks.data.models.Cadence;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadence;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadenceAndDistanceSpeed;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
+
+public class BluetoothRemoteSensorManagerCyclingCadence extends BluetoothConnectionManager<Cadence> {
+
+    private static final String TAG = BluetoothRemoteSensorManagerCyclingCadence.class.getSimpleName();
+
+    BluetoothRemoteSensorManagerCyclingCadence(SensorDataObserver observer) {
+        super(BluetoothUtils.CYCLING_CADENCE, observer);
+    }
+
+    @Override
+    protected SensorDataCyclingCadence createEmptySensorData(String address) {
+        return new SensorDataCyclingCadence(address);
+    }
+
+    @Override
+    protected SensorDataCyclingCadence parsePayload(ServiceMeasurementUUID serviceMeasurementUUID, String sensorName, String address, BluetoothGattCharacteristic characteristic) {
+
+        //TODO Implement to ServiceMeasurement.parse()?
+        if (serviceMeasurementUUID.equals(BluetoothUtils.CYCLING_POWER)) {
+            SensorDataCyclingPower.Data data = BluetoothUtils.parseCyclingPower(address, sensorName, characteristic);
+            if (data!= null) {
+                return data.getCadence();
+            }
+        } else if (serviceMeasurementUUID.equals(BluetoothUtils.CYCLING_SPEED_CADENCE)) {
+            SensorDataCyclingCadenceAndDistanceSpeed cadenceAndSpeed = BluetoothUtils.parseCyclingCrankAndWheel(address, sensorName, characteristic);
+            if (cadenceAndSpeed == null) {
+                return null;
+            }
+
+            if (cadenceAndSpeed.getCadence() != null) {
+                return cadenceAndSpeed.getCadence();
+            }
+        }
+
+        Log.e(TAG, "Don't know how to decode this payload.");
+        return null;
+    }
+}
@@ -0,0 +1,32 @@
+package de.dennisguse.opentracks.sensors;
+
+import android.bluetooth.BluetoothGattCharacteristic;
+
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadenceAndDistanceSpeed;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingDistanceSpeed;
+
+public class BluetoothRemoteSensorManagerCyclingDistanceSpeed extends BluetoothConnectionManager<SensorDataCyclingDistanceSpeed.Data> {
+
+    BluetoothRemoteSensorManagerCyclingDistanceSpeed(SensorDataObserver observer) {
+        super(BluetoothUtils.CYCLING_SPEED_CADENCE, observer);
+    }
+
+    @Override
+    protected SensorDataCyclingDistanceSpeed createEmptySensorData(String address) {
+        return new SensorDataCyclingDistanceSpeed(address);
+    }
+
+    @Override
+    protected SensorDataCyclingDistanceSpeed parsePayload(ServiceMeasurementUUID serviceMeasurementUUID, String sensorName, String address, BluetoothGattCharacteristic characteristic) {
+        SensorDataCyclingCadenceAndDistanceSpeed cadenceAndSpeed = BluetoothUtils.parseCyclingCrankAndWheel(address, sensorName, characteristic);
+        if (cadenceAndSpeed == null) {
+            return null;
+        }
+
+        if (cadenceAndSpeed.getDistanceSpeed() != null) {
+            return cadenceAndSpeed.getDistanceSpeed();
+        }
+
+        return null;
+    }
+}
@@ -0,0 +1,27 @@
+package de.dennisguse.opentracks.sensors;
+
+import android.bluetooth.BluetoothGattCharacteristic;
+
+import androidx.annotation.NonNull;
+
+import de.dennisguse.opentracks.data.models.Power;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
+
+public class BluetoothRemoteSensorManagerCyclingPower extends BluetoothConnectionManager<Power> {
+
+    BluetoothRemoteSensorManagerCyclingPower(@NonNull SensorDataObserver observer) {
+        super(BluetoothUtils.CYCLING_POWER, observer);
+    }
+
+    @Override
+    protected SensorDataCyclingPower createEmptySensorData(String address) {
+        return new SensorDataCyclingPower(address);
+    }
+
+    @Override
+    protected SensorDataCyclingPower parsePayload(@NonNull ServiceMeasurementUUID serviceMeasurementUUID, String sensorName, String address, BluetoothGattCharacteristic characteristic) {
+        SensorDataCyclingPower.Data cyclingPower = BluetoothUtils.parseCyclingPower(address, sensorName, characteristic);
+
+        return cyclingPower != null ? cyclingPower.getPower() : null;
+    }
+}
@@ -0,0 +1,27 @@
+package de.dennisguse.opentracks.sensors;
+
+import android.bluetooth.BluetoothGattCharacteristic;
+
+import androidx.annotation.NonNull;
+
+import de.dennisguse.opentracks.data.models.HeartRate;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataHeartRate;
+
+public class BluetoothRemoteSensorManagerHeartRate extends BluetoothConnectionManager<HeartRate> {
+
+    BluetoothRemoteSensorManagerHeartRate(@NonNull SensorDataObserver observer) {
+        super(BluetoothUtils.HEARTRATE, observer);
+    }
+
+    @Override
+    protected SensorDataHeartRate createEmptySensorData(String address) {
+        return new SensorDataHeartRate(address);
+    }
+
+    @Override
+    protected SensorDataHeartRate parsePayload(@NonNull ServiceMeasurementUUID serviceMeasurementUUID, String sensorName, String address, BluetoothGattCharacteristic characteristic) {
+        HeartRate heartRate = BluetoothUtils.parseHeartRate(characteristic);
+
+        return heartRate != null ? new SensorDataHeartRate(address, sensorName, heartRate) : null;
+    }
+}
@@ -0,0 +1,24 @@
+package de.dennisguse.opentracks.sensors;
+
+import android.bluetooth.BluetoothGattCharacteristic;
+
+import androidx.annotation.NonNull;
+
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataRunning;
+
+public class BluetoothRemoteSensorManagerRunningSpeedAndCadence extends BluetoothConnectionManager<SensorDataRunning.Data> {
+
+    BluetoothRemoteSensorManagerRunningSpeedAndCadence(@NonNull SensorDataObserver observer) {
+        super(BluetoothUtils.RUNNING_SPEED_CADENCE, observer);
+    }
+
+    @Override
+    protected SensorDataRunning createEmptySensorData(String address) {
+        return new SensorDataRunning(address);
+    }
+
+    @Override
+    protected SensorDataRunning parsePayload(@NonNull ServiceMeasurementUUID serviceMeasurementUUID, String sensorName, String address, BluetoothGattCharacteristic characteristic) {
+        return BluetoothUtils.parseRunningSpeedAndCadence(address, sensorName, characteristic);
+    }
+}
@@ -30,8 +30,13 @@ import java.util.UUID;

 import de.dennisguse.opentracks.data.models.Cadence;
 import de.dennisguse.opentracks.data.models.Distance;
+import de.dennisguse.opentracks.data.models.HeartRate;
+import de.dennisguse.opentracks.data.models.Power;
 import de.dennisguse.opentracks.data.models.Speed;
-import de.dennisguse.opentracks.sensors.sensorData.SensorDataCycling;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadence;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingCadenceAndDistanceSpeed;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingDistanceSpeed;
+import de.dennisguse.opentracks.sensors.sensorData.SensorDataCyclingPower;
 import de.dennisguse.opentracks.sensors.sensorData.SensorDataRunning;

 /**
@@ -43,23 +48,40 @@ public class BluetoothUtils {

    public static final UUID CLIENT_CHARACTERISTIC_CONFIG_UUID = new UUID(0x290200001000L, 0x800000805f9b34fbL);

-    public static final UUID HEART_RATE_SERVICE_UUID = new UUID(0x180D00001000L, 0x800000805f9b34fbL);
-    public static final UUID HEART_RATE_MEASUREMENT_CHAR_UUID = new UUID(0x2A3700001000L, 0x800000805f9b34fbL);
+    public static final ServiceMeasurementUUID HEARTRATE = new ServiceMeasurementUUID(
+            new UUID(0x180D00001000L, 0x800000805f9b34fbL),
+            new UUID(0x2A3700001000L, 0x800000805f9b34fbL)
+    );

-    public static final List<UUID> HEART_RATE_SUPPORTING_DEVICES = Collections.unmodifiableList(Arrays.asList(
-            BluetoothUtils.HEART_RATE_SERVICE_UUID,
+    // Used for device discovery in preferences
+    public static final List<ServiceMeasurementUUID> HEART_RATE_SUPPORTING_DEVICES = Collections.unmodifiableList(Arrays.asList(
+            HEARTRATE,
            //Devices that support HEART_RATE_SERVICE_UUID, but do not announce HEART_RATE_SERVICE_UUID in there BLE announcement messages (during device discovery).
-            UUID.fromString("0000fee0-0000-1000-8000-00805f9b34fb") //Miband3
-    ));
+            new ServiceMeasurementUUID(
+                    UUID.fromString("0000fee0-0000-1000-8000-00805f9b34fb"), //Miband3
+                    HEARTRATE.getMeasurementUUID()
+            ))
+    );

-    public static final UUID CYCLING_POWER_UUID = new UUID(0x181800001000L, 0x800000805f9b34fbL);
-    public static final UUID CYCLING_POWER_MEASUREMENT_CHAR_UUID = new UUID(0x2A6300001000L, 0x800000805f9b34fbL);
+    public static final ServiceMeasurementUUID CYCLING_POWER = new ServiceMeasurementUUID(
+            new UUID(0x181800001000L, 0x800000805f9b34fbL),
+            new UUID(0x2A6300001000L, 0x800000805f9b34fbL)
+    );

-    public static final UUID CYCLING_SPEED_CADENCE_SERVICE_UUID = new UUID(0x181600001000L, 0x800000805f9b34fbL);
-    public static final UUID CYCLING_SPEED_CADENCE_MEASUREMENT_CHAR_UUID = new UUID(0x2A5B00001000L, 0x800000805f9b34fbL);
+    public static final ServiceMeasurementUUID CYCLING_SPEED_CADENCE = new ServiceMeasurementUUID(
+            new UUID(0x181600001000L, 0x800000805f9b34fbL),
+            new UUID(0x2A5B00001000L, 0x800000805f9b34fbL)
+    );

-    public static final UUID RUNNING_RUNNING_SPEED_CADENCE_UUID = new UUID(0x181400001000L, 0x800000805f9b34fbL);
-    public static final UUID RUNNING_RUNNING_SPEED_CADENCE_CHAR_UUID = new UUID(0x2A5300001000L, 0x800000805f9b34fbL);
+    public static final List<ServiceMeasurementUUID> CYCLING_CADENCE = List.of(
+            CYCLING_POWER,
+            CYCLING_SPEED_CADENCE
+    );
+
+    public static final ServiceMeasurementUUID RUNNING_SPEED_CADENCE = new ServiceMeasurementUUID(
+            new UUID(0x181400001000L, 0x800000805f9b34fbL),
+            new UUID(0x2A5300001000L, 0x800000805f9b34fbL)
+    );

    private static final String TAG = BluetoothUtils.class.getSimpleName();

@@ -80,7 +102,7 @@ public class BluetoothUtils {
        return BluetoothUtils.getAdapter(context) != null;
    }

-    public static Integer parseHeartRate(BluetoothGattCharacteristic characteristic) {
+    public static HeartRate parseHeartRate(BluetoothGattCharacteristic characteristic) {
        //DOCUMENTATION https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.heart_rate_measurement.xml
        byte[] raw = characteristic.getValue();
        if (raw.length == 0) {
@@ -89,26 +111,58 @@ public class BluetoothUtils {

        boolean formatUINT16 = ((raw[0] & 0x1) == 1);
        if (formatUINT16 && raw.length >= 3) {
-            return characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, 1);
+            return HeartRate.of(characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, 1));
        }
        if (!formatUINT16 && raw.length >= 2) {
-            return characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, 1);
+            return HeartRate.of(characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, 1));
        }

        return null;
    }

-    public static Integer parseCyclingPower(BluetoothGattCharacteristic characteristic) {
+    public static SensorDataCyclingPower.Data parseCyclingPower(String address, String sensorName, BluetoothGattCharacteristic characteristic) {
        // DOCUMENTATION https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.cycling_power_measurement.xml
        int valueLength = characteristic.getValue().length;
-        if (valueLength < 4) {
+        if (valueLength == 0) {
            return null;
        }

-        return characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_SINT16, 2);
+        int index = 0;
+        int flags1 = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, index++);
+        int flags2 = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, index++);
+        boolean hasPedalPowerBalance = (flags1 & 0x01) > 0;
+        boolean hasAccumulatedTorque = (flags1 & 0x04) > 0;
+        boolean hasWheel = (flags1 & 16) > 0;
+        boolean hasCrank = (flags1 & 32) > 0;
+
+        Integer instantaneousPower = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_SINT16, index);
+        index += 2;
+
+        if (hasPedalPowerBalance) {
+            index += 1;
+        }
+        if (hasAccumulatedTorque) {
+            index += 2;
+        }
+        if (hasWheel) {
+            index += 2 + 2;
+        }
+
+        SensorDataCyclingCadence cadence = null;
+        if (hasCrank && valueLength - index >= 4) {
+            long crankCount = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, index);
+            index += 2;
+
+            int crankTime = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, index); // 1/1024s
+
+            cadence = new SensorDataCyclingCadence(address, sensorName, crankCount, crankTime);
+        }
+
+
+        return new SensorDataCyclingPower.Data(new SensorDataCyclingPower(sensorName, address, Power.of(instantaneousPower)), cadence);
    }

-    public static SensorDataCycling.CadenceAndSpeed parseCyclingCrankAndWheel(String address, String sensorName, @NonNull BluetoothGattCharacteristic characteristic) {
+    public static SensorDataCyclingCadenceAndDistanceSpeed parseCyclingCrankAndWheel(String address, String sensorName, @NonNull BluetoothGattCharacteristic characteristic) {
        // DOCUMENTATION https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.csc_measurement.xml
        int valueLength = characteristic.getValue().length;
        if (valueLength == 0) {
@@ -120,25 +174,25 @@ public class BluetoothUtils {
        boolean hasCrank = (flags & 0x02) > 0;

        int index = 1;
-        SensorDataCycling.DistanceSpeed speed = null;
+        SensorDataCyclingDistanceSpeed speed = null;
        if (hasWheel && valueLength - index >= 6) {
            int wheelTotalRevolutionCount = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT32, index);
            index += 4;
            int wheelTime = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, index); // 1/1024s
-            speed = new SensorDataCycling.DistanceSpeed(address, sensorName, wheelTotalRevolutionCount, wheelTime);
+            speed = new SensorDataCyclingDistanceSpeed(address, sensorName, wheelTotalRevolutionCount, wheelTime);
            index += 2;
        }

-        SensorDataCycling.CyclingCadence cadence = null;
+        SensorDataCyclingCadence cadence = null;
        if (hasCrank && valueLength - index >= 4) {
            long crankCount = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, index);
            index += 2;

            int crankTime = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, index); // 1/1024s
-            cadence = new SensorDataCycling.CyclingCadence(address, sensorName, crankCount, crankTime);
+            cadence = new SensorDataCyclingCadence(address, sensorName, crankCount, crankTime);
        }

-        return new SensorDataCycling.CadenceAndSpeed(address, sensorName, cadence, speed);
+        return new SensorDataCyclingCadenceAndDistanceSpeed(address, sensorName, cadence, speed);
    }

    public static SensorDataRunning parseRunningSpeedAndCadence(String address, String sensorName, @NonNull BluetoothGattCharacteristic characteristic) {
@@ -0,0 +1,47 @@
+package de.dennisguse.opentracks.sensors;
+
+import androidx.annotation.NonNull;
+
+import java.util.Objects;
+import java.util.UUID;
+
+public class ServiceMeasurementUUID {
+
+    private final UUID serviceUUID;
+    private final UUID measurementUUID;
+
+    public ServiceMeasurementUUID(UUID serviceUUID, UUID measurementUUID) {
+        this.serviceUUID = serviceUUID;
+        this.measurementUUID = measurementUUID;
+    }
+
+    public UUID getServiceUUID() {
+        return serviceUUID;
+    }
+
+    public UUID getMeasurementUUID() {
+        return measurementUUID;
+    }
+
+    @NonNull
+    @Override
+    public String toString() {
+        return "ServiceMeasurementUUID{" +
+                "serviceUUID=" + serviceUUID +
+                ", measurementUUID=" + measurementUUID +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        ServiceMeasurementUUID that = (ServiceMeasurementUUID) o;
+        return Objects.equals(serviceUUID, that.serviceUUID) && Objects.equals(measurementUUID, that.measurementUUID);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(serviceUUID, measurementUUID);
+    }
+}
@@ -74,7 +74,7 @@ public abstract class SensorData<T> {
     */
    private boolean isRecent() {
        return Instant.now()
-                .isBefore(time.plus(BluetoothRemoteSensorManager.MAX_SENSOR_DATE_SET_AGE_MS));
+                .isBefore(time.plus(BluetoothRemoteSensorManager.MAX_SENSOR_DATE_SET_AGE));
    }

    @NonNull
@@ -1,255 +0,0 @@
-package de.dennisguse.opentracks.sensors.sensorData;
-
-import android.util.Log;
-
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.core.util.Pair;
-
-import java.time.Duration;
-
-import de.dennisguse.opentracks.data.models.Cadence;
-import de.dennisguse.opentracks.data.models.Distance;
-import de.dennisguse.opentracks.data.models.Speed;
-import de.dennisguse.opentracks.sensors.UintUtils;
-
-/**
- * Provides cadence in rpm and speed in milliseconds from Bluetooth LE Cycling Cadence and Speed sensors.
- */
-public final class SensorDataCycling {
-
-    private static final String TAG = SensorDataCycling.class.getSimpleName();
-
-    private SensorDataCycling() {
-    }
-
-    public static class CyclingCadence extends SensorData<Cadence> {
-
-        private final Long crankRevolutionsCount; // UINT32
-        private final Integer crankRevolutionsTime; // UINT16; 1/1024s
-
-        public CyclingCadence(String sensorAddress) {
-            super(sensorAddress);
-            this.crankRevolutionsCount = null;
-            this.crankRevolutionsTime = null;
-        }
-
-        public CyclingCadence(String sensorAddress, String sensorName, long crankRevolutionsCount, int crankRevolutionsTime) {
-            super(sensorAddress, sensorName);
-            this.crankRevolutionsCount = crankRevolutionsCount;
-            this.crankRevolutionsTime = crankRevolutionsTime;
-        }
-
-        /**
-         * Workaround for Wahoo CADENCE: provides speed instead of cadence
-         */
-        public CyclingCadence(@NonNull DistanceSpeed speed) {
-            this(speed.getSensorAddress(), speed.getSensorName(), speed.wheelRevolutionsCount, speed.wheelRevolutionsTime);
-        }
-
-        public boolean hasData() {
-            return crankRevolutionsCount != null && crankRevolutionsTime != null;
-        }
-
-        public long getCrankRevolutionsCount() {
-            return crankRevolutionsCount;
-        }
-
-        public int getCrankRevolutionsTime() {
-            return crankRevolutionsTime;
-        }
-
-        @NonNull
-        @Override
-        protected Cadence getNoneValue() {
-            return Cadence.of(0);
-        }
-
-        public void compute(CyclingCadence previous) {
-            if (hasData() && previous != null && previous.hasData()) {
-                float timeDiff_ms = UintUtils.diff(crankRevolutionsTime, previous.crankRevolutionsTime, UintUtils.UINT16_MAX) / 1024f * 1000;
-                Duration timeDiff = Duration.ofMillis((long) timeDiff_ms);
-                if (timeDiff.isZero() || timeDiff.isNegative()) {
-                    Log.e(TAG, "Timestamps difference is invalid: cannot compute cadence.");
-                    value = null;
-                    return;
-                }
-
-                // TODO We have to treat with overflow according to the documentation: read https://github.com/OpenTracksApp/OpenTracks/pull/953#discussion_r711625268
-                if (crankRevolutionsCount < previous.crankRevolutionsCount) {
-                    Log.e(TAG, "Crank revolutions count difference is invalid: cannot compute cadence.");
-                    return;
-                }
-
-                long crankDiff = UintUtils.diff(crankRevolutionsCount, previous.crankRevolutionsCount, UintUtils.UINT32_MAX);
-                value = Cadence.of(crankDiff, timeDiff);
-            }
-        }
-
-        @NonNull
-        @Override
-        public String toString() {
-            return super.toString() + " cadence=" + value + " time=" + crankRevolutionsTime + " count=" + crankRevolutionsCount;
-        }
-
-        @Override
-        public boolean equals(@Nullable Object obj) {
-            if (!(obj instanceof CyclingCadence)) return false;
-
-            CyclingCadence comp = (CyclingCadence) obj;
-            if (hasData() && comp.hasData() == hasData()) {
-                return getCrankRevolutionsCount() == comp.getCrankRevolutionsCount() && getCrankRevolutionsTime() == comp.getCrankRevolutionsTime();
-            } else {
-                return false;
-            }
-        }
-    }
-
-    public static class DistanceSpeed extends SensorData<DistanceSpeed.Data> {
-
-        private final Long wheelRevolutionsCount; // UINT32
-        private final Integer wheelRevolutionsTime; // UINT16; 1/1024s
-
-        public DistanceSpeed(String sensorAddress) {
-            super(sensorAddress);
-            this.wheelRevolutionsCount = null;
-            this.wheelRevolutionsTime = null;
-        }
-
-        public DistanceSpeed(String sensorAddress, String sensorName, long wheelRevolutionsCount, int wheelRevolutionsTime) {
-            super(sensorAddress, sensorName);
-            this.wheelRevolutionsCount = wheelRevolutionsCount;
-            this.wheelRevolutionsTime = wheelRevolutionsTime;
-        }
-
-        public boolean hasData() {
-            return wheelRevolutionsCount != null && wheelRevolutionsTime != null;
-        }
-
-        public long getWheelRevolutionsCount() {
-            return wheelRevolutionsCount;
-        }
-
-        public int getWheelRevolutionsTime() {
-            return wheelRevolutionsTime;
-        }
-
-        @NonNull
-        @Override
-        protected Data getNoneValue() {
-            if (value != null) {
-                return new Data(value.distance, value.distanceOverall, Speed.zero());
-            } else {
-                return new Data(Distance.of(0), Distance.of(0), Speed.zero());
-            }
-        }
-
-        public void compute(DistanceSpeed previous, Distance wheelCircumference) {
-            if (hasData() && previous != null && previous.hasData()) {
-                float timeDiff_ms = UintUtils.diff(wheelRevolutionsTime, previous.wheelRevolutionsTime, UintUtils.UINT16_MAX) / 1024f * 1000;
-                Duration timeDiff = Duration.ofMillis((long) timeDiff_ms);
-                if (timeDiff.isZero() || timeDiff.isNegative()) {
-                    Log.e(TAG, "Timestamps difference is invalid: cannot compute speed.");
-                    value = null;
-                    return;
-                }
-
-                if (wheelRevolutionsCount < previous.wheelRevolutionsCount) {
-                    Log.e(TAG, "Wheel revolutions count difference is invalid: cannot compute speed.");
-                    return;
-                }
-                long wheelDiff = UintUtils.diff(wheelRevolutionsCount, previous.wheelRevolutionsCount, UintUtils.UINT32_MAX);
-
-                Distance distance = wheelCircumference.multipliedBy(wheelDiff);
-                Distance distanceOverall = distance;
-                if (previous.hasValue()) {
-                    distanceOverall = distance.plus(previous.getValue().distanceOverall);
-                }
-                Speed speed_mps = Speed.of(distance, timeDiff);
-                value = new Data(distance, distanceOverall, speed_mps);
-            }
-        }
-
-        @Override
-        public void reset() {
-            if (value != null) {
-                value = new Data(value.distance, Distance.of(0), value.speed);
-            }
-        }
-
-        @NonNull
-        @Override
-        public String toString() {
-            return super.toString() + " data=" + value + " time=" + wheelRevolutionsTime + " count=" + wheelRevolutionsCount;
-        }
-
-        @Override
-        public boolean equals(@Nullable Object obj) {
-            if (!(obj instanceof DistanceSpeed)) return false;
-
-            DistanceSpeed comp = (DistanceSpeed) obj;
-            if (!(hasData() && comp.hasData())) {
-                return false;
-            }
-
-            return getWheelRevolutionsCount() == comp.getWheelRevolutionsCount() && getWheelRevolutionsTime() == comp.getWheelRevolutionsTime();
-        }
-
-        public static class Data {
-            private final Distance distance;
-            private final Distance distanceOverall;
-            private final Speed speed;
-
-            private Data(Distance distance, Distance distanceOverall, Speed speed) {
-                this.distance = distance;
-                this.distanceOverall = distanceOverall;
-                this.speed = speed;
-            }
-
-            public Distance getDistance() {
-                return distance;
-            }
-
-            public Distance getDistanceOverall() {
-                return distanceOverall;
-            }
-
-            public Speed getSpeed() {
-                return speed;
-            }
-
-            @NonNull
-            @Override
-            public String toString() {
-                return "Data{" +
-                        "distance=" + getDistance() +
-                        ", distance_overall=" + getDistanceOverall() +
-                        ", speed=" + getSpeed() +
-                        '}';
-            }
-        }
-    }
-
-    public static class CadenceAndSpeed extends SensorData<Pair<CyclingCadence, DistanceSpeed>> {
-
-        public CadenceAndSpeed(String sensorAddress, String sensorName, @Nullable CyclingCadence cadence, @Nullable DistanceSpeed distanceSpeed) {
-            super(sensorAddress, sensorName);
-            this.value = new Pair<>(cadence, distanceSpeed);
-        }
-
-        public CyclingCadence getCadence() {
-            return this.value != null ? this.value.first : null;
-        }
-
-        public DistanceSpeed getDistanceSpeed() {
-            return this.value != null ? this.value.second : null;
-        }
-
-        @NonNull
-        @Override
-        protected Pair<CyclingCadence, DistanceSpeed> getNoneValue() {
-            return new Pair<>(null, null);
-        }
-    }
-}
-
@@ -0,0 +1,88 @@
+package de.dennisguse.opentracks.sensors.sensorData;
+
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.time.Duration;
+
+import de.dennisguse.opentracks.data.models.Cadence;
+import de.dennisguse.opentracks.sensors.UintUtils;
+
+public class SensorDataCyclingCadence extends SensorData<Cadence> {
+
+    private final String TAG = SensorDataCyclingCadence.class.getSimpleName();
+
+    private final Long crankRevolutionsCount; // UINT32
+    private final Integer crankRevolutionsTime; // UINT16; 1/1024s
+
+    public SensorDataCyclingCadence(String sensorAddress) {
+        super(sensorAddress);
+        this.crankRevolutionsCount = null;
+        this.crankRevolutionsTime = null;
+    }
+
+    public SensorDataCyclingCadence(String sensorAddress, String sensorName, long crankRevolutionsCount, int crankRevolutionsTime) {
+        super(sensorAddress, sensorName);
+        this.crankRevolutionsCount = crankRevolutionsCount;
+        this.crankRevolutionsTime = crankRevolutionsTime;
+    }
+
+    public boolean hasData() {
+        return crankRevolutionsCount != null && crankRevolutionsTime != null;
+    }
+
+    public long getCrankRevolutionsCount() {
+        return crankRevolutionsCount;
+    }
+
+    public int getCrankRevolutionsTime() {
+        return crankRevolutionsTime;
+    }
+
+    @NonNull
+    @Override
+    protected Cadence getNoneValue() {
+        return Cadence.of(0);
+    }
+
+    public void compute(SensorDataCyclingCadence previous) {
+        if (hasData() && previous != null && previous.hasData()) {
+            float timeDiff_ms = UintUtils.diff(crankRevolutionsTime, previous.crankRevolutionsTime, UintUtils.UINT16_MAX) / 1024f * 1000;
+            Duration timeDiff = Duration.ofMillis((long) timeDiff_ms);
+            if (timeDiff.isZero() || timeDiff.isNegative()) {
+                Log.e(TAG, "Timestamps difference is invalid: cannot compute cadence.");
+                value = null;
+                return;
+            }
+
+            // TODO We have to treat with overflow according to the documentation: read https://github.com/OpenTracksApp/OpenTracks/pull/953#discussion_r711625268
+            if (crankRevolutionsCount < previous.crankRevolutionsCount) {
+                Log.e(TAG, "Crank revolutions count difference is invalid: cannot compute cadence.");
+                return;
+            }
+
+            long crankDiff = UintUtils.diff(crankRevolutionsCount, previous.crankRevolutionsCount, UintUtils.UINT32_MAX);
+            value = Cadence.of(crankDiff, timeDiff);
+        }
+    }
+
+    @NonNull
+    @Override
+    public String toString() {
+        return super.toString() + " cadence=" + value + " time=" + crankRevolutionsTime + " count=" + crankRevolutionsCount;
+    }
+
+    @Override
+    public boolean equals(@Nullable Object obj) {
+        if (!(obj instanceof SensorDataCyclingCadence)) return false;
+
+        SensorDataCyclingCadence comp = (SensorDataCyclingCadence) obj;
+        if (hasData() && comp.hasData() == hasData()) {
+            return getCrankRevolutionsCount() == comp.getCrankRevolutionsCount() && getCrankRevolutionsTime() == comp.getCrankRevolutionsTime();
+        } else {
+            return false;
+        }
+    }
+}
@@ -0,0 +1,27 @@
+package de.dennisguse.opentracks.sensors.sensorData;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.util.Pair;
+
+public class SensorDataCyclingCadenceAndDistanceSpeed extends SensorData<Pair<SensorDataCyclingCadence, SensorDataCyclingDistanceSpeed>> {
+
+    public SensorDataCyclingCadenceAndDistanceSpeed(String sensorAddress, String sensorName, @Nullable SensorDataCyclingCadence cadence, @Nullable SensorDataCyclingDistanceSpeed distanceSpeed) {
+        super(sensorAddress, sensorName);
+        this.value = new Pair<>(cadence, distanceSpeed);
+    }
+
+    public SensorDataCyclingCadence getCadence() {
+        return this.value != null ? this.value.first : null;
+    }
+
+    public SensorDataCyclingDistanceSpeed getDistanceSpeed() {
+        return this.value != null ? this.value.second : null;
+    }
+
+    @NonNull
+    @Override
+    protected Pair<SensorDataCyclingCadence, SensorDataCyclingDistanceSpeed> getNoneValue() {
+        return new Pair<>(null, null);
+    }
+}
@@ -0,0 +1,139 @@
+package de.dennisguse.opentracks.sensors.sensorData;
+
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.time.Duration;
+
+import de.dennisguse.opentracks.data.models.Distance;
+import de.dennisguse.opentracks.data.models.Speed;
+import de.dennisguse.opentracks.sensors.UintUtils;
+
+public class SensorDataCyclingDistanceSpeed extends SensorData<SensorDataCyclingDistanceSpeed.Data> {
+
+    private final String TAG = SensorDataCyclingDistanceSpeed.class.getSimpleName();
+
+    private final Long wheelRevolutionsCount; // UINT32
+    private final Integer wheelRevolutionsTime; // UINT16; 1/1024s
+
+    public SensorDataCyclingDistanceSpeed(String sensorAddress) {
+        super(sensorAddress);
+        this.wheelRevolutionsCount = null;
+        this.wheelRevolutionsTime = null;
+    }
+
+    public SensorDataCyclingDistanceSpeed(String sensorAddress, String sensorName, long wheelRevolutionsCount, int wheelRevolutionsTime) {
+        super(sensorAddress, sensorName);
+        this.wheelRevolutionsCount = wheelRevolutionsCount;
+        this.wheelRevolutionsTime = wheelRevolutionsTime;
+    }
+
+    public boolean hasData() {
+        return wheelRevolutionsCount != null && wheelRevolutionsTime != null;
+    }
+
+    public long getWheelRevolutionsCount() {
+        return wheelRevolutionsCount;
+    }
+
+    public int getWheelRevolutionsTime() {
+        return wheelRevolutionsTime;
+    }
+
+    @NonNull
+    @Override
+    protected Data getNoneValue() {
+        if (value != null) {
+            return new Data(value.distance, value.distanceOverall, Speed.zero());
+        } else {
+            return new Data(Distance.of(0), Distance.of(0), Speed.zero());
+        }
+    }
+
+    public void compute(SensorDataCyclingDistanceSpeed previous, Distance wheelCircumference) {
+        if (hasData() && previous != null && previous.hasData()) {
+            float timeDiff_ms = UintUtils.diff(wheelRevolutionsTime, previous.wheelRevolutionsTime, UintUtils.UINT16_MAX) / 1024f * 1000;
+            Duration timeDiff = Duration.ofMillis((long) timeDiff_ms);
+            if (timeDiff.isZero() || timeDiff.isNegative()) {
+                Log.e(TAG, "Timestamps difference is invalid: cannot compute speed.");
+                value = null;
+                return;
+            }
+
+            if (wheelRevolutionsCount < previous.wheelRevolutionsCount) {
+                Log.e(TAG, "Wheel revolutions count difference is invalid: cannot compute speed.");
+                return;
+            }
+            long wheelDiff = UintUtils.diff(wheelRevolutionsCount, previous.wheelRevolutionsCount, UintUtils.UINT32_MAX);
+
+            Distance distance = wheelCircumference.multipliedBy(wheelDiff);
+            Distance distanceOverall = distance;
+            if (previous.hasValue()) {
+                distanceOverall = distance.plus(previous.getValue().distanceOverall);
+            }
+            Speed speed_mps = Speed.of(distance, timeDiff);
+            value = new Data(distance, distanceOverall, speed_mps);
+        }
+    }
+
+    @Override
+    public void reset() {
+        if (value != null) {
+            value = new Data(value.distance, Distance.of(0), value.speed);
+        }
+    }
+
+    @NonNull
+    @Override
+    public String toString() {
+        return super.toString() + " data=" + value + " time=" + wheelRevolutionsTime + " count=" + wheelRevolutionsCount;
+    }
+
+    @Override
+    public boolean equals(@Nullable Object obj) {
+        if (!(obj instanceof SensorDataCyclingDistanceSpeed)) return false;
+
+        SensorDataCyclingDistanceSpeed comp = (SensorDataCyclingDistanceSpeed) obj;
+        if (!(hasData() && comp.hasData())) {
+            return false;
+        }
+
+        return getWheelRevolutionsCount() == comp.getWheelRevolutionsCount() && getWheelRevolutionsTime() == comp.getWheelRevolutionsTime();
+    }
+
+    public static class Data {
+        private final Distance distance;
+        private final Distance distanceOverall;
+        private final Speed speed;
+
+        private Data(Distance distance, Distance distanceOverall, Speed speed) {
+            this.distance = distance;
+            this.distanceOverall = distanceOverall;
+            this.speed = speed;
+        }
+
+        public Distance getDistance() {
+            return distance;
+        }
+
+        public Distance getDistanceOverall() {
+            return distanceOverall;
+        }
+
+        public Speed getSpeed() {
+            return speed;
+        }
+
+        @NonNull
+        @Override
+        public String toString() {
+            return "Data{" +
+                    "distance=" + getDistance() +
+                    ", distance_overall=" + getDistanceOverall() +
+                    ", speed=" + getSpeed() +
+                    '}';
+        }
+    }
+}
@@ -1,6 +1,7 @@
 package de.dennisguse.opentracks.sensors.sensorData;

 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;

 import de.dennisguse.opentracks.data.models.Power;

@@ -17,13 +18,40 @@ public class SensorDataCyclingPower extends SensorData<Power> {

    @NonNull
    @Override
-    public String toString() {
-        return super.toString() + " power=" + value;
+    protected Power getNoneValue() {
+        return Power.of(0f);
    }

    @NonNull
    @Override
-    protected Power getNoneValue() {
-        return Power.of(0f);
+    public String toString() {
+        return super.toString() + " data=" + value;
+    }
+
+    public static class Data {
+        private final SensorDataCyclingPower power;
+        private final SensorDataCyclingCadence cadence;
+
+        public Data(SensorDataCyclingPower power, @Nullable SensorDataCyclingCadence cadence) {
+            this.power = power;
+            this.cadence = cadence;
+        }
+
+        public SensorDataCyclingPower getPower() {
+            return power;
+        }
+
+        public SensorDataCyclingCadence getCadence() {
+            return cadence;
+        }
+
+        @NonNull
+        @Override
+        public String toString() {
+            return "Data{" +
+                    "power=" + power +
+                    ", cadence=" + cadence +
+                    '}';
+        }
    }
 }
@@ -13,9 +13,9 @@ public final class SensorDataSet {

    private SensorDataHeartRate heartRate;

-    private SensorDataCycling.CyclingCadence cyclingCadence;
+    private SensorDataCyclingCadence cyclingCadence;

-    private SensorDataCycling.DistanceSpeed cyclingDistanceSpeed;
+    private SensorDataCyclingDistanceSpeed cyclingDistanceSpeed;

    private SensorDataCyclingPower cyclingPower;

@@ -64,11 +64,11 @@ public final class SensorDataSet {
        return null;
    }

-    public SensorDataCycling.CyclingCadence getCyclingCadence() {
+    public SensorDataCyclingCadence getCyclingCadence() {
        return cyclingCadence;
    }

-    public SensorDataCycling.DistanceSpeed getCyclingDistanceSpeed() {
+    public SensorDataCyclingDistanceSpeed getCyclingDistanceSpeed() {
        return cyclingDistanceSpeed;
    }

@@ -146,12 +146,12 @@ public final class SensorDataSet {
            return;
        }

-        if (type instanceof SensorDataCycling.CyclingCadence) {
-            this.cyclingCadence = (SensorDataCycling.CyclingCadence) data;
+        if (type instanceof SensorDataCyclingCadence) {
+            this.cyclingCadence = (SensorDataCyclingCadence) data;
            return;
        }
-        if (type instanceof SensorDataCycling.DistanceSpeed) {
-            this.cyclingDistanceSpeed = (SensorDataCycling.DistanceSpeed) data;
+        if (type instanceof SensorDataCyclingDistanceSpeed) {
+            this.cyclingDistanceSpeed = (SensorDataCyclingDistanceSpeed) data;
            return;
        }

@@ -22,7 +22,6 @@ import java.util.concurrent.Executors;
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.data.ContentProviderUtils;
 import de.dennisguse.opentracks.data.models.Track;
-import de.dennisguse.opentracks.settings.PreferencesUtils;

 public class TrackDeleteService extends Service {

@@ -267,10 +267,11 @@ public class TrackRecordingService extends Service implements TrackPointCreator.

    @Override
    public void newGpsStatus(GpsStatusValue gpsStatusValue) {
-        notificationManager.updateContent(getString(gpsStatusValue.message));

        //TODO This check should not be necessary, but prevents a crash; somehow the shutdown is not working correctly as we should not receive a notification then.
+        // It is likely a race condition as the LocationManager provides location updates without using the Handler.
        if (gpsStatusObservable != null) {
+            notificationManager.updateContent(getString(gpsStatusValue.message));
            gpsStatusObservable.postValue(gpsStatusValue);
        }
    }
@@ -33,8 +33,8 @@ class VoiceAnnouncementUtils {

    static Spannable getAnnouncement(Context context, TrackStatistics trackStatistics, UnitSystem unitSystem, boolean isReportSpeed, @Nullable IntervalStatistics.Interval currentInterval, @Nullable SensorStatistics sensorStatistics) {
        SpannableStringBuilder builder = new SpannableStringBuilder();
-        Distance distance = trackStatistics.getTotalDistance();
-        Speed distancePerTime = trackStatistics.getAverageMovingSpeed();
+        Distance totalDistance = trackStatistics.getTotalDistance();
+        Speed averageMovingSpeed = trackStatistics.getAverageMovingSpeed();
        Speed currentDistancePerTime = currentInterval != null ? currentInterval.getSpeed() : null;

        int perUnitStringId;
@@ -68,17 +68,17 @@ class VoiceAnnouncementUtils {
                throw new RuntimeException("Not implemented");
        }

-        double distanceInUnit = distance.toKM_Miles(unitSystem);
+        double distanceInUnit = totalDistance.toKM_Miles(unitSystem);

        if (shouldVoiceAnnounceTotalDistance()) {
            builder.append(context.getString(R.string.total_distance));
            // Units should always be english singular for TTS.
            // See https://developer.android.com/reference/android/text/style/TtsSpan?hl=en#TYPE_MEASURE
-            appendDecimalUnit(builder, context.getResources().getQuantityString(distanceId, getQuantityCount(distanceInUnit), distanceInUnit), distanceInUnit, 2, unitDistanceTTS);
+            appendDecimalUnit(builder, context.getResources().getQuantityString(distanceId, getQuantityCount(distanceInUnit), distanceInUnit), distanceInUnit, 1, unitDistanceTTS);
            // Punctuation helps introduce natural pauses in TTS
            builder.append(".");
        }
-        if (distance.isZero()) {
+        if (totalDistance.isZero()) {
            return builder;
        }

@@ -91,7 +91,7 @@ class VoiceAnnouncementUtils {

        if (isReportSpeed) {
            if (shouldVoiceAnnounceAverageSpeedPace()) {
-                double speedInUnit = distancePerTime.to(unitSystem);
+                double speedInUnit = averageMovingSpeed.to(unitSystem);
                builder.append(" ")
                        .append(context.getString(R.string.speed));
                appendDecimalUnit(builder, context.getResources().getQuantityString(speedId, getQuantityCount(speedInUnit), speedInUnit), speedInUnit, 1, unitSpeedTTS);
@@ -108,7 +108,7 @@ class VoiceAnnouncementUtils {
            }
        } else {
            if (shouldVoiceAnnounceAverageSpeedPace()) {
-                Duration time = distancePerTime.toPace(unitSystem);
+                Duration time = averageMovingSpeed.toPace(unitSystem);
                builder.append(" ")
                        .append(context.getString(R.string.pace));
                appendDuration(context, builder, time);
@@ -3,13 +3,16 @@ package de.dennisguse.opentracks.services.handlers;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.location.Location;
-import android.location.LocationListener;
 import android.location.LocationManager;
 import android.os.Bundle;
+import android.os.Handler;
 import android.util.Log;

 import androidx.annotation.NonNull;
 import androidx.annotation.VisibleForTesting;
+import androidx.core.location.LocationListenerCompat;
+import androidx.core.location.LocationManagerCompat;
+import androidx.core.location.LocationRequestCompat;

 import java.time.Duration;
 import java.time.Instant;
@@ -22,12 +25,16 @@ import de.dennisguse.opentracks.util.LocationUtils;
 import de.dennisguse.opentracks.util.PermissionRequester;

@VisibleForTesting(otherwise = VisibleForTesting.PACKAGE_PRIVATE)
-public class GPSHandler implements LocationListener, GpsStatus.GpsStatusListener, SharedPreferences.OnSharedPreferenceChangeListener {
+public class GPSHandler implements LocationListenerCompat, GpsStatus.GpsStatusListener, SharedPreferences.OnSharedPreferenceChangeListener {

    private final String TAG = GPSHandler.class.getSimpleName();

+    public static final String LOCATION_PROVIDER = LocationManager.GPS_PROVIDER;
+
    private final TrackPointCreator trackPointCreator;
    private Context context;
+    private Handler handler;
+
    private LocationManager locationManager;
    private GpsStatus gpsStatus;
    private Duration gpsInterval;
@@ -37,8 +44,10 @@ public class GPSHandler implements LocationListener, GpsStatus.GpsStatusListener
        this.trackPointCreator = trackPointCreator;
    }

-    public void onStart(@NonNull Context context) {
+    public void onStart(@NonNull Context context, @NonNull Handler handler) {
        this.context = context;
+        this.handler = handler;
+
        PreferencesUtils.registerOnSharedPreferenceChangeListener(this);
        gpsStatus = new GpsStatus(context, this);
        locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
@@ -55,10 +64,11 @@ public class GPSHandler implements LocationListener, GpsStatus.GpsStatusListener
    public void onStop() {
        if (locationManager != null && context != null) {
            if (PermissionRequester.GPS.hasPermission(context)) {
-                locationManager.removeUpdates(this);
+                LocationManagerCompat.removeUpdates(locationManager, this);
            }
            locationManager = null;
            context = null;
+            handler = null;
        }

        if (gpsStatus != null) {
@@ -152,9 +162,21 @@ public class GPSHandler implements LocationListener, GpsStatus.GpsStatusListener
            Log.e(TAG, "Not started.");
            return;
        }
+
+        if (!LocationManagerCompat.hasProvider(locationManager, LOCATION_PROVIDER)) {
+            Log.e(TAG, "Device doesn't have GPS.");
+            return;
+        }
+
+        LocationRequestCompat locationRequest = new LocationRequestCompat.Builder(gpsInterval.toMillis())
+                .setQuality(LocationRequestCompat.QUALITY_HIGH_ACCURACY)
+                .setMaxUpdateDelayMillis(0)
+                .build();
+
        if (PermissionRequester.GPS.hasPermission(context)) {
            try {
-                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, gpsInterval.toMillis(), 0, this);
+                final Handler HANDLER = handler;
+                LocationManagerCompat.requestLocationUpdates(locationManager, LOCATION_PROVIDER, locationRequest, HANDLER::post, this);
            } catch (SecurityException e) {
                Log.e(TAG, "Could not register location listener; permissions not granted.", e);
            }
@@ -52,7 +52,7 @@ public class TrackPointCreator implements BluetoothRemoteSensorManager.SensorDat
    public synchronized void start(@NonNull Context context, @NonNull Handler handler) {
        this.context = context;

-        gpsHandler.onStart(context);
+        gpsHandler.onStart(context, handler);

        remoteSensorManager = new BluetoothRemoteSensorManager(context, handler, this);
        altitudeSumManager = new AltitudeSumManager();
@@ -66,13 +66,6 @@ public class TrackPointCreator implements BluetoothRemoteSensorManager.SensorDat
        return context != null;
    }

-    @Deprecated
-    //There should be a cooler way to do this; we want to send fake locations without getting affected by real GPS data.
-    @VisibleForTesting
-    public void stopGPS() {
-        gpsHandler.onStop();
-    }
-
    public synchronized void reset() {
        if (remoteSensorManager == null || altitudeSumManager == null) {
            Log.d(TAG, "No recording running and no reset necessary.");
@@ -73,9 +73,7 @@ public class ImportExportSettingsFragment extends PreferenceFragmentCompat {

    private void setFilenameTemplate() {
        EditTextPreference preference = findPreference(getString(R.string.export_filename_format_key));
-        preference.setOnBindEditTextListener(t -> {
-            t.setHint(getString(R.string.export_filename_format_default));
-        });
+        preference.setOnBindEditTextListener(t -> t.setHint(getString(R.string.export_filename_format_default)));
        preference.setDialogMessage(TrackFilenameGenerator.getAllOptions());

        preference.setOnPreferenceChangeListener((p, newValue) -> new TrackFilenameGenerator(newValue.toString()).isValid());
@@ -42,11 +42,14 @@ import java.util.stream.Stream;
 import de.dennisguse.opentracks.R;
 import de.dennisguse.opentracks.data.models.Distance;
 import de.dennisguse.opentracks.data.models.DistanceFormatter;
+import de.dennisguse.opentracks.data.models.HeartRate;
+import de.dennisguse.opentracks.data.models.HeartRateZones;
 import de.dennisguse.opentracks.data.models.Speed;
 import de.dennisguse.opentracks.io.file.TrackFileFormat;
 import de.dennisguse.opentracks.io.file.TrackFilenameGenerator;
 import de.dennisguse.opentracks.ui.customRecordingLayout.CsvLayoutUtils;
-import de.dennisguse.opentracks.ui.customRecordingLayout.Layout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayout;
+import de.dennisguse.opentracks.ui.customRecordingLayout.RecordingLayoutIO;
 import de.dennisguse.opentracks.util.IntentDashboardUtils;
 import de.dennisguse.opentracks.util.TrackIconUtils;

@@ -197,6 +200,14 @@ public class PreferencesUtils {
        return getBoolean(R.string.publicapi_dashboard_enabled_key, resources.getBoolean(R.bool.publicapi_dashboard_enabled_default));
    }

+    public static boolean shouldShowIntroduction() {
+        return getBoolean(R.string.show_introduction_screen_key, resources.getBoolean(R.bool.show_introduction_screen_default));
+    }
+
+    public static void setShowIntroduction(boolean introduction) {
+        setBoolean(R.string.show_introduction_screen_key, introduction);
+    }
+
    public static UnitSystem getUnitSystem() {
        final String STATS_UNIT_DEFAULT = resources.getString(R.string.stats_units_default);

@@ -270,6 +281,12 @@ public class PreferencesUtils {
        return getBoolean(R.string.settings_sensor_bluetooth_service_filter_enabled_key, DEFAULT);
    }

+    public static HeartRateZones getHeartRateZones() {
+        final int DEFAULT = Integer.parseInt(resources.getString(R.string.settings_sensor_heart_rate_max_default));
+        int value = getInt(R.string.settings_sensor_heart_rate_max_key, DEFAULT);
+        return new HeartRateZones(HeartRate.of(value));
+    }
+
    public static boolean shouldShowStatsOnLockscreen() {
        final boolean STATS_SHOW_ON_LOCKSCREEN_DEFAULT = resources.getBoolean(R.bool.stats_show_on_lockscreen_while_recording_default);
        return getBoolean(R.string.stats_show_on_lockscreen_while_recording_key, STATS_SHOW_ON_LOCKSCREEN_DEFAULT);
@@ -745,35 +762,35 @@ public class PreferencesUtils {
    /**
     * @return custom layout selected or the first one if any has been selected or the one selected is not exists anymore.
     */
-    public static Layout getCustomLayout() {
+    public static RecordingLayout getCustomLayout() {
        String csvCustomLayouts = getString(R.string.stats_custom_layouts_key, buildDefaultLayout());
        String[] csvLines = csvCustomLayouts.split(CsvLayoutUtils.LINE_SEPARATOR);
        String layoutSelected = getString(R.string.stats_custom_layout_selected_layout_key, null);
        if (layoutSelected == null) {
-            return Layout.fromCsv(csvLines[0], resources);
+            return RecordingLayoutIO.fromCsv(csvLines[0], resources);
        }

        for (String line : csvLines) {
-            Layout layout = Layout.fromCsv(line, resources);
-            if (layout.sameName(layoutSelected)) {
-                return layout;
+            RecordingLayout recordingLayout = RecordingLayoutIO.fromCsv(line, resources);
+            if (recordingLayout.sameName(layoutSelected)) {
+                return recordingLayout;
            }
        }

-        return Layout.fromCsv(csvLines[0], resources);
+        return RecordingLayoutIO.fromCsv(csvLines[0], resources);
    }

-    public static void updateCustomLayouts(@NonNull List<Layout> layouts) {
-        setString(R.string.stats_custom_layouts_key, layouts.stream().map(Layout::toCsv).collect(Collectors.joining(CsvLayoutUtils.LINE_SEPARATOR)));
+    public static void updateCustomLayouts(@NonNull List<RecordingLayout> recordingLayouts) {
+        setString(R.string.stats_custom_layouts_key, RecordingLayoutIO.toCSV(recordingLayouts));
    }

-    public static void updateCustomLayout(@NonNull Layout layout) {
-        List<Layout> preferenceLayouts = PreferencesUtils.getAllCustomLayouts();
-        Optional<Layout> layoutToBeUpdated = preferenceLayouts.stream().filter(l -> l.sameName(layout)).findFirst();
+    public static void updateCustomLayout(@NonNull RecordingLayout recordingLayout) {
+        List<RecordingLayout> preferenceRecordingLayouts = PreferencesUtils.getAllCustomLayouts();
+        Optional<RecordingLayout> layoutToBeUpdated = preferenceRecordingLayouts.stream().filter(l -> l.sameName(recordingLayout)).findFirst();
        if (layoutToBeUpdated.isPresent()) {
-            layoutToBeUpdated.get().replaceAllFields(layout.getFields());
-            layoutToBeUpdated.get().setColumnsPerRow(layout.getColumnsPerRow());
-            PreferencesUtils.updateCustomLayouts(preferenceLayouts);
+            layoutToBeUpdated.get().replaceAllFields(recordingLayout.getFields());
+            layoutToBeUpdated.get().setColumnsPerRow(recordingLayout.getColumnsPerRow());
+            PreferencesUtils.updateCustomLayouts(preferenceRecordingLayouts);
        }
    }

@@ -787,19 +804,19 @@ public class PreferencesUtils {
        setString(R.string.stats_custom_layout_selected_layout_key, layoutName);
    }

-    public static List<Layout> getAllCustomLayouts() {
-        List<Layout> layouts = new ArrayList<>();
+    public static List<RecordingLayout> getAllCustomLayouts() {
+        List<RecordingLayout> recordingLayouts = new ArrayList<>();
        String csvCustomLayout = getString(R.string.stats_custom_layouts_key, buildDefaultLayout());
        String[] csvLines = csvCustomLayout.split(CsvLayoutUtils.LINE_SEPARATOR);
        for (String line : csvLines) {
-            layouts.add(Layout.fromCsv(line, resources));
+            recordingLayouts.add(RecordingLayoutIO.fromCsv(line, resources));
        }

-        return layouts;
+        return recordingLayouts;
    }

    public static List<String> getAllCustomLayoutNames() {
-        return getAllCustomLayouts().stream().map(Layout::getName).collect(Collectors.toList());
+        return getAllCustomLayouts().stream().map(RecordingLayout::getName).collect(Collectors.toList());
    }

    public static void resetCustomLayoutPreferences() {
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`Cairde rianaithe spóirt a bhfuil meas aige ar do phríobháideachas.`