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

To get the app widget ID.. use this below code

onReceive() method use this below code

int appWidgetId = intent.getExtras().getInt(AppWidgetManager.EXTRA_APPWIDGET_ID,
AppWidgetManager.INVALID_APPWIDGET_ID);

in onUpdate() you get the list of ids already as the parameter!

If you want to update it from activity use this

 Intent intent = new Intent(this, [activityname].class);
    intent.setAction("android.appwidget.action.APPWIDGET_UPDATE");
    int ids[] = AppWidgetManager.getInstance(getApplication()).getAppWidgetIds(new ComponentName(getApplication(), [activityname].class));
    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS,ids);
    sendBroadcast(intent);