Can I see active/pending syncs in :sync process from main process?

Question

Is it possible to determine (from the process an app was started in) sync status for a SyncAdapter that is running in a separate :sync process? I've been toying with the standard ContentResolver methods below and can't get any of them to return true unless the code below executes in the same process as my SyncAdapter (the :sync process).

val currentSyncs = ContentResolver.getCurrentSyncs().any { it.authority == <authority> }
val syncPending = ContentResolver.isSyncPending(account, <authority>)
val syncActive = ContentResolver.isSyncActive(account, <authority>)

None of the sync framework documentation seems to indicate that this isn't possible in cross-process scenarios, so I'm a bit stumped, but it seems like the most likely explanation for this.

Answer 1

I was rather unlucky trying to find a reliable way to get sync status information from ContentResolver.

What worked for me: Use intents to broadcast information from your SyncAdapter to another component:

// when sync started
Intent i = new Intent();
i.setAction(MyIntents.INTENT_ACTION_SYNC_STARTED);
context.sendBroadcast(i);

// when sync completed
Intent i = new Intent();
i.setAction(MyIntents.INTENT_ACTION_SYNC_DONE);
context.sendBroadcast(i);

and then receive the intents:

registerReceiver(new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, 'Sync started', Toast.LENGTH_LONG).show();
    }
}, new IntentFilter(MyIntents.INTENT_ACTION_SYNC_STARTED));