AppBadge | 设置Android应用角标

        public class GcmBroadcastReceiver extends BroadcastReceiver
        {
            @Override
            public void onReceive(Context context, Intent intent)
            {// Control comes here when any new notification is received
                 final Notification notification = getNotification(threadId, jobTitle, body, subTitle, title, imageURL);
                EventLoggerService.showAppBadge(context, notification, new EventLoggerService.EventLoggerServiceStartedListner(){
                    @Override
                    public void eventLoggerServiceStarted() {
                        notificationManager.notify(101, notification);
                    }
                });
            }

            public Notification getNotification(final String threadId, String jobTitle, final String body ,String subTitle, String title, final String imageURL)
               {
                    final Context context = CareSDKApplication.singleton().getApplicationContext();
                    mThreadId = threadId;
                    mImageURL = imageURL;
                    mBody = body;
                    mTitle = title;
                    mSubTitle = subTitle;

                    NotificationCompat.Builder builder = new NotificationCompat.Builder(context, NotificationsUtils.NOTIFICATION_CHANNEL_ID)
                        // .setLargeIcon(largeIcon)
                        .setSmallIcon(R.drawable.message_notification)
                        .setAutoCancel(true)
                        .setContentIntent(getContentIntent(threadId))
                        .setTicker(getTicker(threadId));

                    RemoteViews customNotification = new RemoteViews(context.getPackageName(), R.layout.image_notification_custom_view);
                    builder.setCustomContentView(customNotification);
                    if (!TextUtils.isEmpty(title)) 
                {
                        customNotification.setTextViewText(R.id.title, StringEscapeUtils.unescapeJava(title));
                            customNotification.setTextViewText(R.id.sub_title,  StringEscapeUtils.unescapeJava(subTitle));
                        customNotification.setTextViewText(R.id.content, StringEscapeUtils.unescapeJava(body));
                    }
                    else
                   {
                        customNotification.setTextViewText(R.id.title, "");
                        customNotification.setTextViewText(R.id.sub_title,  StringEscapeUtils.unescapeJava(body));
                        customNotification.setTextViewText(R.id.content, "");
                }
                customNotification.setTextViewText(R.id.time, new SimpleDateFormat("HH:mm").format(new Date()));
                customNotification.setTextViewText(R.id.number_of_notifications, getUnreadCount(threadId) + "");
                //builder.setPriority(Notification.PRIORITY_MAX);


                mBuilder = builder;

                // For versions equal and higher than jelly bean
                if (Build.VERSION.SDK_INT >= 16) {
                    builder.setStyle(getStyle(threadId));
                }

                if (!TextUtils.isEmpty(imageURL)) {
                    mBigPicture = Utils.getImage(context, imageURL, this);

                    if (mBigPicture != null) {
                        setImageNotification(builder, context, threadId, body, title, subTitle);
                    }
                }
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                    builder.setColor(0x00bce4);
                }
                Notification notification = builder.build();

                return notification;
            }
        }


        public class EventLoggerService extends IntentService
        {
            private static EventLoggerServiceStartedListner 
            mEventLoggerServiceStartedListner;
            private static Notification mNotification;

            @Override
            public void onCreate()
            {
                super.onCreate();
                // This is required for Android O
                if (Build.VERSION.SDK_INT > Build.VERSION_CODES.N_MR1)
                {
                    android.os.Debug.waitForDebugger();
                    NotificationsUtils notificationsUtils = new NotificationsUtils(this);
                    startForeground(1, mNotification);
                    Log.d("EventLoggerService", "EventLoggerService Created");
                }
            }

            public interface EventLoggerServiceStartedListner{
                public void eventLoggerServiceStarted();
            }
            @Override
            public void onStart(@Nullable Intent intent, int startId) {
                super.onStart(intent, startId);
                Log.d("EventLoggerService", "EventLoggerService Started");
            }

            @Override
            public int onStartCommand(@Nullable Intent intent, int flags, int startId) {
                super.onStartCommand(intent, flags, startId);
                Log.d("EventLoggerService", "EventLoggerService onStartCommand");
                mEventLoggerServiceStartedListner.eventLoggerServiceStarted();
                return START_STICKY;
            }

            public static void showAppBadge(Context context, Notification notification, EventLoggerServiceStartedListner eventLoggerServiceStartedListner)
            {
                android.os.Debug.waitForDebugger();
                mNotification = notification;
                mEventLoggerServiceStartedListner = eventLoggerServiceStartedListner;
                Intent service = new Intent(context, EventLoggerService.class);
                context.startForegroundService(service);
            }

        }



        public class NotificationsUtils extends ContextWrapper{
            public static final String NOTIFICATION_CHANNEL_ID = "Care_push_note";
            public static final String NOTIFICATION_CHANNEL_NAME = "Care.com";

            Context mContext;
            NotificationManager mNotificationManager;
            public NotificationsUtils(Context context) {
                super(context);
                mContext = context;
                createChannels();
            }

            public void createChannels()
            {
    // Notification Channel is created for same channel id as Notification is created in side getNotification method of GcmBroadcastReceiver 
                NotificationChannel channel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, NOTIFICATION_CHANNEL_NAME, NotificationManager.IMPORTANCE_HIGH);
                channel.setShowBadge(true);
                channel.enableLights(true);
                channel.enableVibration(true);
                channel.setLightColor(Color.GREEN);
                channel.setLockscreenVisibility(Notification.VISIBILITY_PUBLIC);
                getManager().createNotificationChannel(channel);
            }

            public NotificationManager getManager() {
                if (mNotificationManager == null) {
                    mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
                }
                return mNotificationManager;
            }
        }