I'm fighting against the NotificationListenerService without much luck. I tried a lot of recipes found here and there, especially on so... But it works quite inconsistently.
A first look at the code :
Manifest :
<service
android:name=".services.NLService"
android:permission="android.permission.BIND_NOTIFICATION_LISTENER_SERVICE" >
<intent-filter>
<action android:name="android.service.notification.NotificationListenerService" />
</intent-filter>
</service>
Then the service itself :
public class NLService extends NotificationListenerService {
private String TAG = "NLService";
// bind and unbind seems to make it work with Android 6...
// but is never called with Android 4.4...
@Override
public IBinder onBind(Intent mIntent) {
IBinder mIBinder = super.onBind(mIntent);
Log.i(TAG, "onBind");
return mIBinder;
}
@Override
public boolean onUnbind(Intent mIntent) {
boolean mOnUnbind = super.onUnbind(mIntent);
Log.i(TAG, "onUnbind");
isNotificationAccessEnabled = false;
try {
} catch (Exception e) {
Log.e(TAG, "Error during unbind", e);
}
return mOnUnbind;
}
// onCreate is called with Android 4.4
// because the service is explicitly started from the MainActivity.
// Not on Android 6 where the system binds this service itself...
@Override
public void onCreate() {
super.onCreate();
Log.i(TAG, "********** onCreate");
@Override
public void onNotificationPosted(StatusBarNotification sbn) {
Log.i(TAG, "********** onNotificationPosted");
Log.i(TAG, "ID :" + sbn.getId() + "\t" + sbn.getNotification().tickerText + "\t" + sbn.getPackageName());
}
@Override
public void onNotificationRemoved(StatusBarNotification sbn) {
Log.i(TAG, "********** onNOtificationRemoved");
Log.i(TAG, "ID :" + sbn.getId() + "\t" + sbn.getNotification().tickerText + "\t" + sbn.getPackageName());
}
}
And in the main Activity the service is started or we ask the user to enable the setting if needed :
if (!Utilities.hasNotificationAccess(this))
{
Intent intent = new Intent("android.settings.ACTION_NOTIFICATION_LISTENER_SETTINGS");
startActivity(intent);
Log.i(TAG,"hasNotificationAccess NO");
}
else
{
Log.i(TAG,"hasNotificationAccess YES");
// without this startService, it never works with Android 4.4...
// but this is not needed in Android 6...
Intent mServiceIntent = new Intent(this, NLService.class);
startService(mServiceIntent);
}
Obviously, the secure setting access for notifications is enabled...
On Android 6 :
On the NLService itself, the addition of the onBind and onUnbind methods make it work, I can se the onBind log, and the onNotificationPosted is triggered nicely. But it lasts until the next launch of the app, then no more binding, no more onNotificationPosted, just nothing happens until I go back to security settings to uncheck-recheck the notifications access: repeating this each time the App is started is not something possible in a production environment.
On Android 4.4 :
In contrast to Android 6, in the MainActivity I need to explicitly start the NLService otherwise it never stats by itself. But once again it works for the first launch and never works again until uncheck-recheck the security setting...
Did I miss something obvious ?
