added a little help dialog to gtasks list view

astrid/plugin-src/com/todoroo/astrid/gtasks/GtasksListActivity.java

@@ -5,8 +5,11 @@ import android.os.Bundle;
 import com.commonsware.cwac.tlv.TouchListView;
 import com.commonsware.cwac.tlv.TouchListView.DropListener;
 import com.commonsware.cwac.tlv.TouchListView.SwipeListener;
+import com.timsu.astrid.R;
 import com.todoroo.andlib.data.Property.IntegerProperty;
 import com.todoroo.andlib.service.Autowired;
+import com.todoroo.andlib.utility.DialogUtilities;
+import com.todoroo.andlib.utility.Preferences;
 import com.todoroo.astrid.activity.DraggableTaskListActivity;
 
 public class GtasksListActivity extends DraggableTaskListActivity {
@@ -24,6 +27,14 @@ public class GtasksListActivity extends DraggableTaskListActivity {
 
         getTouchListView().setDropListener(dropListener);
         getTouchListView().setSwipeListener(swipeListener);
+
+        if(!Preferences.getBoolean(GtasksPreferenceService.PREF_SHOWN_LIST_HELP, false)) {
+            Preferences.setBoolean(GtasksPreferenceService.PREF_SHOWN_LIST_HELP, true);
+            DialogUtilities.okDialog(this,
+                    getString(R.string.gtasks_help_title),
+                    android.R.drawable.ic_dialog_info,
+                    getString(R.string.gtasks_help_body), null);
+        }
     }
 
     private final TouchListView.DropListener dropListener = new DropListener() {

astrid/plugin-src/com/todoroo/astrid/gtasks/GtasksPreferenceService.java

@@ -36,4 +36,7 @@ public class GtasksPreferenceService extends SyncProviderUtilities {
     /** GTasks is apps for domain boolean */
     public static final String PREF_IS_DOMAIN = IDENTIFIER + "_domain"; //$NON-NLS-1$
 
+    /** GTasks whether we have shown list help boolean */
+    public static final String PREF_SHOWN_LIST_HELP = IDENTIFIER + "_list_help"; //$NON-NLS-1$
+
 }

astrid/res/values/strings-gtasks.xml

@@ -12,6 +12,13 @@
     
     <!-- filter title for GTasks lists (%s => list name) -->
     <string name="gtasks_FEx_title">Google Tasks: %s</string>
+    
+    <!-- short help title for Gtasks -->
+    <string name="gtasks_help_title">Welcome to Google Tasks!</string>
+    
+    <!-- short help for GTasks list activity -->
+    <string name="gtasks_help_body">Drag the grabber on the left side of a task 
+    to rearrange it. Swipe the grabber left or right to change indentation.</string>
         
     <!-- ============================================ GtasksLoginActivity == -->