[SOLVED] BroadcastReceiver for Android Calendar events (2018)

BroadcastReceiver for Android Calendar events (2018)

This question is indeed a duplicate to Listen for new calendar events

I have been trying to register the BroadcastReceiver with the way specified in the link, however, my app couldn't receive any broadcast when I modified the phone's calendar.

I also tried to add it through IntentFilter instead of through the AndroidManifest

    filter = new IntentFilter();
    filter.addAction(Intent.ACTION_PROVIDER_CHANGED);
    registerReceiver(calendarReceiver,filter);

still no luck getting it to receive the broadcast. Did I miss anything or listening to calendar's changes cannot be done anymore?

Solution

You must add the scheme and and authority for calendar events:

filter.addDataScheme("content");
filter.addDataAuthority("com.android.calendar", null);

A complete example of listening for calendar changes would be:

CalendarReceiver.java

public class CalendarReceiver extends BroadcastReceiver {
    @Override
    public void onReceive(Context context, Intent intent) {
        Log.d("example", "Calendar changed (or the phone just booted)");
    }
}

Activity.java

IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_PROVIDER_CHANGED);
filter.addDataScheme("content");
filter.addDataAuthority("com.android.calendar", null);
registerReceiver(new CalendarReceiver(), filter);