Question

I’m new to Android development. I’ve managed to code a widget which updates every 30 minutes using Alarm Manager. This part is working correctly.

I now want to also enable manually updating of the widget whenever I click on it (i.e. trigger the same OnReceive() via a broadcast whether via the repeating alarm or the click).

I hoped it would be as simple as adding the two lines at the end (as shown below), but the onClick is not working when I click the widget. What is the best way to achieve what I am trying to do?

@Override
public void onEnabled(Context context) {
    super.onEnabled(context);
    AlarmManager am=(AlarmManager)context.getSystemService(Context.ALARM_SERVICE);
    Intent intent = new Intent(context, AlarmManagerBroadcastReceiver.class);
    PendingIntent pi = PendingIntent.getBroadcast(context, 0, intent, 0);
    //Update after 30 minutes
    am.setInexactRepeating(AlarmManager.RTC, System.currentTimeMillis()+ 300, 18000000 , pi);

        //Update manually by Clicking widget (this part not working)    
    RemoteViews remoteViews = new RemoteViews(context.getPackageName(),
            R.layout.my_widget_layout);         
    remoteViews.setOnClickPendingIntent(R.layout.my_widget_layout, pi);

Answer 1

Are you mixing of R.layout.my_widget_layout and R.id.my_widget_layout in your code.

Should notice that Android uses referenced IDs of R.id.xyz for all the generated widget items while R.layout.abc for your views (layout)

I anticipated that error was posed on line:

remoteViews.setOnClickPendingIntent(R.id.my_widget_layout, pi);