Java tutorial
/** * Copyright 2015 Google Inc. All Rights Reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.versul.newbornswatcher; import android.app.NotificationManager; import android.app.PendingIntent; import android.content.Context; import android.content.Intent; import android.content.SharedPreferences; import android.graphics.BitmapFactory; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.NotificationCompat; import android.util.Log; import com.google.android.gms.gcm.GcmListenerService; import com.google.gson.JsonObject; import com.google.gson.JsonParser; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; public class MyGcmListenerService extends GcmListenerService { private static final String TAG = "MyGcmListenerService"; /** * Called when message is received. * * @param from SenderID of the sender. * @param data Data bundle containing message data as key/value pairs. * For Set of keys use data.keySet(). */ // [START receive_message] @Override public void onMessageReceived(String from, Bundle data) { String message = data.getString("message"); Log.d(TAG, "From: " + from); Log.d(TAG, "Message: " + message); try { save(message); } catch (JSONException e) { e.printStackTrace(); } try { sendNotification((new JSONObject(message)).get("origin").toString()); } catch (JSONException e) { e.printStackTrace(); } refreshMain(); } private void refreshMain() { Intent intent = new Intent("receiver"); //send broadcast getApplicationContext().sendBroadcast(intent); } private void save(String msg) throws JSONException { SharedPreferences sharedPref = getApplicationContext().getSharedPreferences(getString(R.string.watcher), Context.MODE_PRIVATE); SharedPreferences.Editor editor = sharedPref.edit(); String key = getResources().getString(R.string.alerts); JSONArray alerts = new JSONArray(sharedPref.getString(key, "[]")); alerts.put(new JSONObject(msg)); editor.putString(key, alerts.toString()); editor.commit(); } /** * Create and show a simple notification containing the received GCM message. * * @param message GCM message received. */ private void sendNotification(String message) { Intent intent = new Intent(this, MainActivity.class); intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent, PendingIntent.FLAG_ONE_SHOT); Uri defaultSoundUri = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.eye); NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this) .setSmallIcon(android.R.drawable.ic_dialog_alert) .setLargeIcon(BitmapFactory.decodeResource(getResources(), R.drawable.notification_large)) .setContentTitle("Newborns Watcher").setContentText(message).setAutoCancel(true) .setSound(defaultSoundUri).setContentIntent(pendingIntent); NotificationManager notificationManager = (NotificationManager) getSystemService( Context.NOTIFICATION_SERVICE); notificationManager.notify(0 /* ID of notification */, notificationBuilder.build()); } }