Use a dialog fragment to select the import all type

MyTracks/res/menu/track_list.xml

@@ -30,14 +30,6 @@ limitations under the License.
     android:icon="@drawable/menu_import"
     android:id="@+id/track_list_import_all"
     android:title="@string/menu_import_all">
-    <menu>
-      <item
-        android:id="@+id/track_list_import_all_gpx"
-        android:title=""/>
-      <item
-        android:id="@+id/track_list_import_all_kml"
-        android:title=""/>
-    </menu>
   </item>
   <item
     android:icon="@drawable/menu_save"

MyTracks/res/values/strings.xml

@@ -844,6 +844,17 @@ limitations under the License.
       %1$s: the directory. E.g., '/storage/sdcard0/MyTracks/gpx/'.">
     Importing from %1$s…
   </string>
+  <string name="import_selection_option"
+    translation_description="When importing from external storage, the option to import all
+      files of a certain file format.
+
+      %1$s: file format. E.g., 'GPX'.">
+    Import all %1$s
+  </string>
+  <string name="import_selection_title"
+     translation_description="The dialog title when importing from external storage.">
+    Import from external storage
+  </string>
   <string name="import_success"
     translation_description="When importing from the external storage, the success message.
 
@@ -1016,15 +1027,7 @@ limitations under the License.
     translation_description="In the menu, to import all tracks from the external storage.
 
       Character limit: ~20 (1 line)">
-    Import all from external storage
-  </string>
-  <string name="menu_import_all_format"
-    translation_description="Under the import all menu option, the submenu option to import all
-      files of a certain file format.
-
-      %1$s: file format. E.g., 'GPX'.
-      Character limit: ~20 (1 line)">
-    Import %1$s
+    Import all
   </string>
   <string name="menu_insert_marker"
     translation_description="In the menu, to insert a marker.

MyTracks/src/com/google/android/apps/mytracks/TrackListActivity.java

@@ -29,6 +29,8 @@ import com.google.android.apps.mytracks.fragments.EnableSyncDialogFragment;
 import com.google.android.apps.mytracks.fragments.EnableSyncDialogFragment.EnableSyncCaller;
 import com.google.android.apps.mytracks.fragments.EulaDialogFragment;
 import com.google.android.apps.mytracks.fragments.EulaDialogFragment.EulaCaller;
+import com.google.android.apps.mytracks.fragments.ImportSelectionDialogFragment;
+import com.google.android.apps.mytracks.fragments.ImportSelectionDialogFragment.ImportSelectionCaller;
 import com.google.android.apps.mytracks.io.file.ImportActivity;
 import com.google.android.apps.mytracks.io.file.SaveActivity;
 import com.google.android.apps.mytracks.io.file.TrackFileFormat;
@@ -93,7 +95,7 @@ import java.util.Locale;
  * @author Leif Hendrik Wilden
  */
 public class TrackListActivity extends AbstractSendToGoogleActivity
-    implements EulaCaller, EnableSyncCaller, DeleteTrackCaller {
+    implements EulaCaller, EnableSyncCaller, DeleteTrackCaller, ImportSelectionCaller {
 
   private static final String TAG = TrackListActivity.class.getSimpleName();
   private static final String START_GPS_KEY = "start_gps_key";
@@ -536,11 +538,6 @@ public class TrackListActivity extends AbstractSendToGoogleActivity
   public boolean onCreateOptionsMenu(Menu menu) {
     getMenuInflater().inflate(R.menu.track_list, menu);
     String fileTypes[] = getResources().getStringArray(R.array.file_types);
-    // Import all submenu titles
-    menu.findItem(R.id.track_list_import_all_gpx)
-        .setTitle(getString(R.string.menu_import_all_format, fileTypes[0]));
-    menu.findItem(R.id.track_list_import_all_kml)
-        .setTitle(getString(R.string.menu_import_all_format, fileTypes[1]));
     // Save all submenu titles
     menu.findItem(R.id.track_list_save_all_gpx)
         .setTitle(getString(R.string.menu_save_format, fileTypes[0]));
@@ -588,12 +585,10 @@ public class TrackListActivity extends AbstractSendToGoogleActivity
         handleStartGps();
         updateMenuItems(recordingTrackId != PreferencesUtils.RECORDING_TRACK_ID_DEFAULT);
         return true;
-      case R.id.track_list_import_all_gpx:
-        startImportActivity(TrackFileFormat.GPX);
-        return true;
-      case R.id.track_list_import_all_kml:
-        startImportActivity(TrackFileFormat.KML);
-        return true;
+      case R.id.track_list_import_all:
+        new ImportSelectionDialogFragment().show(
+            getSupportFragmentManager(), ImportSelectionDialogFragment.IMPORT_SELECTION_DIALOG_TAG);
+         return true;
       case R.id.track_list_save_all_gpx:
         startSaveActivity(TrackFileFormat.GPX);
         return true;
@@ -672,6 +667,16 @@ public class TrackListActivity extends AbstractSendToGoogleActivity
     // Do nothing
   }
 
+  @Override
+  public void onImportSelectionDone(TrackFileFormat trackFileFormat) {
+    AnalyticsUtils.sendPageViews(
+        this, "/action/import_all_" + trackFileFormat.name().toLowerCase(Locale.US));
+    Intent intent = IntentUtils.newIntent(this, ImportActivity.class)
+        .putExtra(ImportActivity.EXTRA_IMPORT_ALL, true)
+        .putExtra(ImportActivity.EXTRA_TRACK_FILE_FORMAT, (Parcelable) trackFileFormat);
+    startActivity(intent);    
+  }
+
   /**
    * Shows start up dialogs.
    */
@@ -785,20 +790,6 @@ public class TrackListActivity extends AbstractSendToGoogleActivity
     bindChangedCallback.run();
   }
 
-  /**
-   * Starts the {@link ImportActivity} to import all tracks.
-   * 
-   * @param trackFileFormat the track file format
-   */
-  private void startImportActivity(TrackFileFormat trackFileFormat) {
-    AnalyticsUtils.sendPageViews(
-        this, "/action/import_all_" + trackFileFormat.name().toLowerCase(Locale.US));
-    Intent intent = IntentUtils.newIntent(this, ImportActivity.class)
-        .putExtra(ImportActivity.EXTRA_IMPORT_ALL, true)
-        .putExtra(ImportActivity.EXTRA_TRACK_FILE_FORMAT, (Parcelable) trackFileFormat);
-    startActivity(intent);
-  }
-
   /**
    * Starts the {@link SaveActivity} to save all tracks.
    * 

MyTracks/src/com/google/android/apps/mytracks/fragments/ImportSelectionDialogFragment.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2013 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.android.apps.mytracks.fragments;
+
+import com.google.android.apps.mytracks.io.file.TrackFileFormat;
+import com.google.android.maps.mytracks.R;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.content.DialogInterface.OnClickListener;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+
+/**
+ * A DialogFragment to select an import type, gpx, kml, etc.
+ * 
+ * @author Jimmy Shih
+ */
+public class ImportSelectionDialogFragment extends DialogFragment {
+
+  /**
+   * Interface for caller of this dialog fragment.
+   * 
+   * @author Jimmy Shih
+   */
+  public interface ImportSelectionCaller {
+
+    /**
+     * Called when import selection is done.
+     */
+    public void onImportSelectionDone(TrackFileFormat trackFileFormat);
+  }
+
+  public static final String IMPORT_SELECTION_DIALOG_TAG = "importSelection";
+
+  private ImportSelectionCaller caller;
+
+  @Override
+  public void onAttach(Activity activity) {
+    super.onAttach(activity);
+    try {
+      caller = (ImportSelectionCaller) activity;
+    } catch (ClassCastException e) {
+      throw new ClassCastException(
+          activity.toString() + " must implement " + ImportSelectionCaller.class.getSimpleName());
+    }
+  }
+
+  @Override
+  public Dialog onCreateDialog(Bundle savedInstanceState) {
+    String[] choices = new String[2];
+    String fileTypes[] = getResources().getStringArray(R.array.file_types);
+    choices[0] = getString(R.string.import_selection_option, fileTypes[0]);
+    choices[1] = getString(R.string.import_selection_option, fileTypes[1]);
+
+    return new AlertDialog.Builder(getActivity()).setNegativeButton(R.string.generic_cancel, null)
+        .setPositiveButton(R.string.generic_ok, new OnClickListener() {
+            @Override
+          public void onClick(DialogInterface dialog, int which) {
+            int position = ((AlertDialog) dialog).getListView().getCheckedItemPosition();
+            caller.onImportSelectionDone(position == 0 ? TrackFileFormat.GPX : TrackFileFormat.KML);
+          }
+        }).setSingleChoiceItems(choices, 0, null).setTitle(R.string.import_selection_title)
+        .create();
+  }
+}