Share is working in TrackDetailActivity.

myTracks/src/main/java/com/google/android/apps/mytracks/AbstractTrackActivity.java

@@ -77,8 +77,7 @@ public abstract class AbstractTrackActivity extends AbstractActivity implements
 
       @Override
       public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-        contextualActionModeCallback.onPrepare(
-                menu, getCheckedPositions(listView), listView.getCheckedItemIds(), true);
+        contextualActionModeCallback.onPrepare(menu, getCheckedPositions(listView), listView.getCheckedItemIds(), true);
         return true;
       }
 

myTracks/src/main/java/com/google/android/apps/mytracks/SearchListActivity.java

@@ -146,6 +146,8 @@ public class SearchListActivity extends AbstractTrackActivity implements DeleteM
           }
           // Not recording, one item, item is a track
           menu.findItem(R.id.list_context_menu_share).setVisible(!isRecording && isSingleSelection && isSingleSelectionTrack);
+          //TODO Setup shareIntent.
+
           // One item, item is a marker
           menu.findItem(R.id.list_context_menu_show_on_map)
               .setVisible(isSingleSelection && !isSingleSelectionTrack);

myTracks/src/main/java/com/google/android/apps/mytracks/TrackDetailActivity.java

@@ -28,6 +28,7 @@ import com.google.android.apps.mytracks.fragments.ChooseActivityTypeDialogFragme
 import com.google.android.apps.mytracks.fragments.ConfirmDeleteDialogFragment;
 import com.google.android.apps.mytracks.fragments.FrequencyDialogFragment;
 import com.google.android.apps.mytracks.fragments.StatsFragment;
+import com.google.android.apps.mytracks.io.file.TrackFileFormat;
 import com.google.android.apps.mytracks.services.TrackRecordingServiceConnection;
 import com.google.android.apps.mytracks.settings.SettingsActivity;
 import com.google.android.apps.mytracks.util.FileUtils;
@@ -57,9 +58,9 @@ import androidx.viewpager.widget.ViewPager;
 import android.util.Log;
 import android.view.Menu;
 import android.view.MenuItem;
-import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnClickListener;
+import android.widget.ShareActionProvider;
 import android.widget.TabHost;
 import android.widget.TabHost.TabSpec;
 import android.widget.Toast;
@@ -335,6 +336,9 @@ public class TrackDetailActivity extends AbstractTrackActivity
     insertPhotoMenuItem.setVisible(new Intent(MediaStore.ACTION_IMAGE_CAPTURE).resolveActivity(getPackageManager()) != null);
 
     shareMenuItem = menu.findItem(R.id.track_detail_share);
+    ShareActionProvider shareActionProvider = (ShareActionProvider) shareMenuItem.getActionProvider();
+    //TODO: Share the actual track when track is finished? How to get the file path or create a new file?
+    shareActionProvider.setShareIntent(IntentUtils.newShareFileIntent(this, trackId, "", TrackFileFormat.KML));
 
     voiceFrequencyMenuItem = menu.findItem(R.id.track_detail_voice_frequency);
     splitFrequencyMenuItem = menu.findItem(R.id.track_detail_split_frequency);

myTracks/src/main/res/menu/list_context_menu.xml

@@ -19,13 +19,7 @@ limitations under the License.
         android:id="@+id/list_context_menu_share"
         android:icon="@drawable/ic_menu_share"
         android:title="@string/menu_share"
-        app:showAsAction="ifRoom" />
-    <item
-        android:id="@+id/track_detail_share"
-        android:icon="@drawable/ic_menu_share"
-        android:orderInCategory="4"
-        android:title="@string/menu_share"
-        app:actionProviderClass="androidx.appcompat.widget.ShareActionProvider"
+        android:actionProviderClass="android.widget.ShareActionProvider"
         app:showAsAction="ifRoom" />
     <item
         android:id="@+id/list_context_menu_show_on_map"

myTracks/src/main/res/menu/track_detail.xml

@@ -32,8 +32,8 @@ limitations under the License.
         android:icon="@drawable/ic_menu_share"
         android:orderInCategory="4"
         android:title="@string/menu_share"
-        app:actionProviderClass="androidx.appcompat.widget.ShareActionProvider"
-        app:showAsAction="never" />
+        android:actionProviderClass="android.widget.ShareActionProvider"
+        app:showAsAction="ifRoom" />
     <item
         android:id="@+id/track_detail_markers"
         android:icon="@drawable/ic_menu_markers"