Question

im trying to start the calendar sync programatically using this code

Bundle bundle = new Bundle();
bundle.putBoolean(ContentResolver.SYNC_EXTRAS_EXPEDITED, true);
bundle.putBoolean(ContentResolver.SYNC_EXTRAS_FORCE, true);
bundle.putBoolean(ContentResolver.SYNC_EXTRAS_MANUAL, true);
bundle.putBoolean(ContentResolver.SYNC_EXTRAS_IGNORE_SETTINGS, true);

ContentResolver.requestSync(accounts[0], "com.android.calendar", bundle);

i want a way so i can know when sync complete so i can read data from the calendar
i tried doing this

while (ContentResolver.isSyncActive(accounts[0], "com.android.calendar")) {
System.out.println("looping: " + i);
}

readLocalCalendar();
readLocalEvents();

but the system exit the loop before the sync ends and i can still see the sync sign at the status bar, so any help so i can read calendar events after sync completle done ??

thanks

Answer 1

Another option would be to register a broadcast receiver to tell you when the sync is finished like this:

public class UpdateableActivity extends Activity {
    public static final String ACTION_FINISHED_SYNC = "your.package.ACTION_FINISHED_SYNC";

    private static IntentFilter syncIntentFilter = new IntentFilter(ACTION_FINISHED_SYNC);

    private BroadcastReceiver syncBroadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            // update your views
        }
    };

    @Override
    protected void onResume() {
        super.onResume();
        // register for sync
        registerReceiver(syncBroadcastReceiver, syncIntentFilter);
        // do your resuming magic
    }

    @Override
    protected void onPause() {
        unregisterReceiver(syncBroadcastReceiver);
        super.onPause();
    }
}

Inside your SyncAdapter use this when done:

getContext().sendBroadcast(new Intent(UpdateableActivity.ACTION_FINISHED_SYNC));  

You can also use this for when starting or updating the status of the sync 😉

Update: Updated the code to avoid leaks and making sure the activity is still active (onResume/onPause)