Intervals: added elevation gain and only shows speed or pace, depending on settings.

src/main/res/layout/interval_list_view.xml

@@ -2,6 +2,7 @@
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    xmlns:tools="http://schemas.android.com/tools"
     android:orientation="vertical">
 
     <LinearLayout
@@ -42,7 +43,7 @@
             android:text="@string/stats_distance" />
 
         <TextView
-            android:id="@+id/interval_speed"
+            android:id="@+id/interval_rate"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
@@ -50,10 +51,10 @@
             android:layout_margin="1dp"
             android:textAlignment="center"
             android:layout_gravity="center"
-            android:text="@string/stats_speed" />
+            tools:text="Speed"/>
 
         <TextView
-            android:id="@+id/interval_pace"
+            android:id="@+id/interval_elevation"
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
@@ -61,7 +62,7 @@
             android:layout_margin="1dp"
             android:textAlignment="center"
             android:layout_gravity="center"
-            android:text="@string/stats_pace" />
+            android:text="@string/stats_elevation" />
 
     </LinearLayout>