Java tutorial
package eu.faircode.netguard; /* This file is part of NetGuard. NetGuard is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. NetGuard is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with NetGuard. If not, see <http://www.gnu.org/licenses/>. Copyright 2015-2017 by Marcel Bokhorst (M66B) */ import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.os.Build; import android.preference.PreferenceManager; import android.support.v4.app.NotificationManagerCompat; import android.util.Log; import java.util.Map; public class ReceiverPackageRemoved extends BroadcastReceiver { private static final String TAG = "NetGuard.Receiver"; @Override public void onReceive(final Context context, Intent intent) { Log.i(TAG, "Received " + intent); Util.logExtras(intent); int uid = intent.getIntExtra(Intent.EXTRA_UID, 0); if (uid > 0) { DatabaseHelper dh = DatabaseHelper.getInstance(context); dh.clearLog(uid); dh.clearAccess(uid, false); NotificationManagerCompat.from(context).cancel(uid); // installed notification NotificationManagerCompat.from(context).cancel(uid + 10000); // access notification } } }