OnUpdate() not calling the widget service

Question

i am developing a widget for my app. Widget name is history, when user browses any URL i will store it in local db, which widget listing from it.

when i open the widget, it fetches all the details from the local db and showing it in widget's list-view.

1) when i open the widget, first onUpdate method of WidgetProvider is called

2) then onUpdate() will call the service WidgetService

3) then service will call the Widget Factory to update the list-view using locally stored db.

In widget factory it will get the db values and update the lisviews in widget.

the above is the process happening when setting up the widget.

The first class:

        public class WidgetProviderFavorite extends AppWidgetProvider {

        @SuppressWarnings("deprecation")
        @Override
          public void onUpdate(Context ctxt, AppWidgetManager appWidgetManager,int[] appWidgetIds) {            
            for (int i=0; i<appWidgetIds.length; i++) {
              Intent svcIntent=new Intent(ctxt, WidgetServiceFavorite.class);
              svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
              svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));  
              RemoteViews widget=new RemoteViews(ctxt.getPackageName(),R.layout.widget_favorite);
              widget.setRemoteAdapter(appWidgetIds[i], R.id.listFavoriteLogin,svcIntent);                                  
              Intent clickIntent=new Intent(ctxt, WidgetActivityFavorite.class);                                 
              PendingIntent clickPI=PendingIntent.getActivity(ctxt, 0,clickIntent,PendingIntent.FLAG_UPDATE_CURRENT);

              widget.setPendingIntentTemplate(R.id.listFavoriteLogin, clickPI);                                              
              appWidgetManager.updateAppWidget(appWidgetIds[i], widget);

            }

            super.onUpdate(ctxt, appWidgetManager, appWidgetIds);
          } 

The second class:

        public class WidgetServiceFavorite extends RemoteViewsService {
          @Override
          public RemoteViewsFactory onGetViewFactory(Intent intent) {

            return(new WidgetFactoryFavorite(this.getApplicationContext(),intent));         
          }
        }

The third class: which is going to fetch and update the listview.

fetching done in construtor and getViewAt() (Its called automatically) will be setting the values.

        public class WidgetFactoryFavorite extends Activity implements RemoteViewsService.RemoteViewsFactory {

          public WidgetFactoryFavorite(Context ctxt, Intent intent) {
              int array_Index=0;
              int array_Length=0;
              WidgetDatabase db1=new WidgetDatabase(ctxt);
              List<WidgetDatabaseModel> facorite = db1.getFavorite();
              array_Length=facorite.size(); 

              mNames=new String[array_Length];                                     
              mSummary=new String[array_Length];

              for (WidgetDatabaseModel cn : facorite) {                     
                  mNames[array_Index] =cn.getNAME(); 
                  mSummary[array_Index]= cn.getSUMMARY();
                  array_Index++;
              } 

              this.mCtxt=ctxt;
              intent.getIntExtra(AppWidgetManager.EXTRA_APPWIDGET_ID,
                                              AppWidgetManager.INVALID_APPWIDGET_ID);

          }
            @Override
          public void onCreate() {
            // no-op
          }

          @Override
          public void onDestroy() {
            // no-op
          }

          @Override
          public int getCount() {
            return(mNames.length);
          }

          @Override
          public RemoteViews getViewAt(int position) {

              RemoteViews row=new RemoteViews(mCtxt.getPackageName(),
                                             R.layout.widget_rowfavorite);

              row.setTextViewText(android.R.id.text1, mNames[position]);

              Intent i=new Intent();
              Bundle extras=new Bundle(); 
              extras.putString(WidgetProviderFavorite.sExtra_Guid, mGuid[position]);
              extras.putString(WidgetProviderFavorite.sExtra_Url, mUrl[position]);
              i.putExtras(extras);
              row.setOnClickFillInIntent(android.R.id.text1, i);

              return(row);
          }

          @Override
          public RemoteViews getLoadingView() {
            return(null);
          }

          @Override
          public int getViewTypeCount() {
            return(1);
          }

          @Override
          public long getItemId(int position) {
            return(position);
          }

          @Override
          public boolean hasStableIds() {
            return(true);
          }

          @Override
          public void onDataSetChanged() {
          }
        }

My Problem is:

Its not syncing side by by side when i browse some URL in my browser. i have used the below code sync when database is updated by new URL.

        int[] ids = AppWidgetManager.getInstance(mActivity).getAppWidgetIds(new ComponentName(mActivity, WidgetProviderFavorite.class));
        WidgetProviderFavorite myWidget = new WidgetProviderFavorite();
        myWidget.onUpdate(mActivity, AppWidgetManager.getInstance(mActivity),ids);

its calling the onUpdate method(). but onUpdate doesn't call the service class which is going to call factory class and upadting the lisview with new database values. the flow i mentioned earlier was not happening when new values added to db.

why service method is not called?

or any other method refresh the list-view when database values changes

Answer 1

Answering my self:

We have to call notifyAppWidgetViewDataChanged() in onUpdateMethod().

   appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds[i], R.id.listView);

Complete OnUpdate():

    public class WidgetProviderFavorite extends AppWidgetProvider {

    @SuppressWarnings("deprecation")
    @Override
      public void onUpdate(Context ctxt, AppWidgetManager appWidgetManager,int[] appWidgetIds) {            
        for (int i=0; i<appWidgetIds.length; i++) {
          Intent svcIntent=new Intent(ctxt, WidgetServiceFavorite.class);
          svcIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
          svcIntent.setData(Uri.parse(svcIntent.toUri(Intent.URI_INTENT_SCHEME)));  
          RemoteViews widget=new RemoteViews(ctxt.getPackageName(),R.layout.widget_favorite);
          widget.setRemoteAdapter(appWidgetIds[i], R.id.listFavoriteLogin,svcIntent);                                  
          Intent clickIntent=new Intent(ctxt, WidgetActivityFavorite.class);                                 
          PendingIntent clickPI=PendingIntent.getActivity(ctxt, 0,clickIntent,PendingIntent.FLAG_UPDATE_CURRENT);

          widget.setPendingIntentTemplate(R.id.listFavoriteLogin, clickPI); 

          appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds[i], R.id.listView);                

          appWidgetManager.updateAppWidget(appWidgetIds[i], widget);

        }

        super.onUpdate(ctxt, appWidgetManager, appWidgetIds);
      }