From 58c4b38c0b84a47b84d2d9400848c24efb62c999 Mon Sep 17 00:00:00 2001
From: Dennis Guse <dennis.guse@alumni.tu-berlin.de>
Date: Mon, 21 Sep 2026 21:04:47 +0200
Subject: [PATCH] Export: disable "export all tracks into one
 file"-functionality as markers cannot be correctly restored (KML/KMZ).

Part of #2383.
---
 .../io/file/exporter/KMLTrackExporter.java          |  2 ++
 src/main/res/xml/settings_import_export.xml         | 13 +++++++------
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/main/java/de/dennisguse/opentracks/io/file/exporter/KMLTrackExporter.java b/src/main/java/de/dennisguse/opentracks/io/file/exporter/KMLTrackExporter.java
index 9f1425a61..e0249935a 100644
--- a/src/main/java/de/dennisguse/opentracks/io/file/exporter/KMLTrackExporter.java
+++ b/src/main/java/de/dennisguse/opentracks/io/file/exporter/KMLTrackExporter.java
@@ -49,6 +49,8 @@ import de.dennisguse.opentracks.util.StringUtils;
  * Convert {@link Track} incl. {@link Marker} and {@link TrackPoint} to KML version 2.3.
  * <a href="https://docs.opengeospatial.org/is/12-007r2/12-007r2.html">...</a>
  *
+ * WARNING: exporting multiple tracks (each with markers) into one file, will not allow to restore to which track a marker belonged.
+ *
  * @author Sandor Dornbush
  * @author Rodrigo Damazio
  * @author Leif Hendrik Wilden
diff --git a/src/main/res/xml/settings_import_export.xml b/src/main/res/xml/settings_import_export.xml
index 0237f7188..287afce99 100644
--- a/src/main/res/xml/settings_import_export.xml
+++ b/src/main/res/xml/settings_import_export.xml
@@ -24,12 +24,13 @@
                 android:targetClass="de.dennisguse.opentracks.io.file.importer.DirectoryChooserActivity$ExportDirectoryChooserActivity"
                 android:targetPackage="@string/applicationId" />
         </Preference>
-        <Preference
-            android:title="@string/menu_export_all_one_file">
-            <intent
-                android:targetClass="de.dennisguse.opentracks.io.file.importer.DirectoryChooserActivity$ExportDirectoryChooserOneFileActivity"
-                android:targetPackage="@string/applicationId" />
-        </Preference>
+<!-- Disabled as the used structure for KML/KMZ does not allow assigning markers correctly on import. -->
+<!--        <Preference-->
+<!--            android:title="@string/menu_export_all_one_file">-->
+<!--            <intent-->
+<!--                android:targetClass="de.dennisguse.opentracks.io.file.importer.DirectoryChooserActivity$ExportDirectoryChooserOneFileActivity"-->
+<!--                android:targetPackage="@string/applicationId" />-->
+<!--        </Preference>-->
         <Preference
             android:key="@string/settings_default_export_directory_key"
             android:title="@string/settings_default_export_uri_title">