SimpleAppWidget.java

public class SimpleAppWidget extends AppWidgetProvider {

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        // There may be multiple widgets active, so update all of them
        for (int appWidgetId : appWidgetIds) {
            updateAppWidget(context, appWidgetManager, appWidgetId);
        }
    }

    private void updateAppWidget(Context context, AppWidgetManager appWidgetManager,
                                 int appWidgetId) {

        // Construct the RemoteViews object
        RemoteViews views = new RemoteViews(context.getPackageName(), R.layout.simple_app_widget);
        // Construct an Intent object includes web adresss.
        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://erenutku.com"));
        // In widget we are not allowing to use intents as usually. We have to use PendingIntent instead of 'startActivity'
        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0);
        // Here the basic operations the remote view can do.
        views.setOnClickPendingIntent(R.id.tvWidget, pendingIntent);
        // Instruct the widget manager to update the widget
        appWidgetManager.updateAppWidget(appWidgetId, views);
    }

}