AppWidgetManager.getAppWidgetIds in activity returns an empty list

Question

I have an appwidget that I\'m trying to update from an activity.

To do that, I need the appwidget id.

I\'ve used AppWidgetManager.getAppWidgetIds bu

Answer 1

You can access your widget without knowing id

appWidgetManager.updateAppWidget(new ComponentName(this.getPackageName(),Widget.class.getName()), views);

This let you access the widget without having to know the 'appWidgetID'. Then in activity:

Intent intent = new Intent(this, Settings.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);

views.setOnClickPendingIntent(R.id.btnActivate, pendingIntent);

AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(this);
appWidgetManager.updateAppWidget(new ComponentName(this.getPackageName(), Widget.class.getName()), views);
finish();