Add support for multiselect

MyTracks/res/layout/list_item.xml

@@ -22,7 +22,8 @@ limitations under the License.
   android:paddingRight="12dp"
   android:paddingTop="8dp"
   android:shrinkColumns="1"
-  android:stretchColumns="1" >
+  android:stretchColumns="1"
+  style="@style/ListItem" >
   <TableRow
     android:layout_height="wrap_content"
     android:layout_width="match_parent" >

MyTracks/res/values-v11/styles.xml

@@ -29,6 +29,9 @@ limitations under the License.
     <item name="android:orientation">horizontal</item>
     <item name="android:measureWithLargestChild">true</item>
   </style>
+  <style name="ListItem">
+    <item name="android:background">?android:attr/activatedBackgroundIndicator</item>
+  </style>  
   <style name="MyTracksActionBar" parent="@android:style/Widget.Holo.ActionBar">
     <!-- Same image as the source except using a grey line instead of a blue line -->
     <item name="android:background">@drawable/ab_transparent_dark_holo</item>

MyTracks/res/values/strings.xml

@@ -852,6 +852,21 @@ limitations under the License.
     Imported %1$s from %2$s.
   </string>
 
+  <!-- List item -->
+  <string name="list_deselect_all"
+    translation_description="Option to deselect all the items in a list.">
+    Deselect all
+  </string>
+  <string name="list_item_selected"
+    translation_description="Title indictating the number of items selected in a list.
+      %1$d: an integer value. E.g., '2'.">
+    %1$d selected
+  </string>
+  <string name="list_select_all"
+    translation_description="Option to select all the items in a list.">
+    Select all
+  </string>
+    
   <!-- Maps List -->
   <string name="maps_list_error"
     translation_description="When sending a track to an existing Google Map, the text on the Maps'

MyTracks/res/values/styles.xml

@@ -101,6 +101,8 @@ limitations under the License.
     <item name="android:layout_gravity">center</item>
     <item name="android:padding">8dp</item>
   </style>
+  <!-- list item -->
+  <style name="ListItem" />
   <!-- list item date -->
   <style name="ListItemDate" parent="@style/TextSmall">
     <item name="android:gravity">right</item>