Implement notification channel

app/src/main/java/org/traccar/client/MainApplication.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Anton Tananaev (anton.tananaev@gmail.com)
+ * Copyright 2016 - 2017 Anton Tananaev (anton.tananaev@gmail.com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,14 +15,36 @@
  */
 package org.traccar.client;
 
+import android.annotation.TargetApi;
 import android.app.Application;
+import android.app.Notification;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.graphics.Color;
+import android.os.Build;
 
 public class MainApplication extends Application {
 
+    public static final String PRIMARY_CHANNEL = "default";
+
     @Override
     public void onCreate() {
         super.onCreate();
         System.setProperty("http.keepAliveDuration", String.valueOf(30 * 60 * 1000));
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            registerChannel();
+        }
+    }
+
+    @TargetApi(Build.VERSION_CODES.O)
+    private void registerChannel() {
+        NotificationChannel channel = new NotificationChannel(
+                PRIMARY_CHANNEL, getString(R.string.channel_default), NotificationManager.IMPORTANCE_MIN);
+        channel.setLightColor(Color.GREEN);
+        channel.setLockscreenVisibility(Notification.VISIBILITY_SECRET);
+        ((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);
     }
 
 }

app/src/main/java/org/traccar/client/TrackingService.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012 - 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ * Copyright 2012 - 2017 Anton Tananaev (anton.tananaev@gmail.com)
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,11 +23,9 @@ import android.content.Context;
 import android.content.Intent;
 import android.os.Build;
 import android.os.IBinder;
+import android.support.v4.app.NotificationCompat;
 import android.util.Log;
 
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-
 public class TrackingService extends Service {
 
     private static final String TAG = TrackingService.class.getSimpleName();
@@ -37,32 +35,12 @@ public class TrackingService extends Service {
 
     private static Notification createNotification(Context context) {
         PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 0);
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-
-            return new Notification.Builder(context)
+        return new NotificationCompat.Builder(context, MainApplication.PRIMARY_CHANNEL)
                 .setContentTitle(context.getString(R.string.app_name))
                 .setContentText(context.getString(R.string.settings_status_on_summary))
                 .setContentIntent(pendingIntent)
-                .setPriority(Notification.PRIORITY_MIN)
+                .setPriority(NotificationCompat.PRIORITY_MIN)
                 .build();
-
-        } else {
-
-            Notification notification = new Notification(android.R.drawable.stat_notify_sync_noanim, null, 0);
-            try {
-                Method method = notification.getClass().getMethod("setLatestEventInfo", Context.class, CharSequence.class, CharSequence.class, PendingIntent.class);
-                try {
-                    method.invoke(notification, context, context.getString(R.string.app_name), context.getString(R.string.settings_status_on_summary), pendingIntent);
-                } catch (IllegalArgumentException | IllegalAccessException | InvocationTargetException e) {
-                    Log.w(TAG, e);
-                }
-            } catch (SecurityException | NoSuchMethodException e) {
-                Log.w(TAG, e);
-            }
-            return notification;
-
-        }
     }
 
     @TargetApi(Build.VERSION_CODES.ECLAIR)

app/src/main/res/values/strings.xml

@@ -5,6 +5,7 @@
   <string name="shortcut_start">Traccar - Start</string>
   <string name="shortcut_stop">Traccar - Stop</string>
   <string name="shortcut_sos">Traccar - SOS</string>
+  <string name="channel_default">Primary Channel</string>
   <string name="settings_id_title">Device identifier</string>
   <string name="settings_url_title">Server URL</string>
   <string name="settings_url_summary">Tracking server URL</string>