在Android中显示应用程序图标的徽章数

Question

在我的Android应用程序中，我想显示推送通知徽章数到应用程序图标，如ios。

如何将徽章数显示到应用程序图标中？

Answer 1

Android没有这个特殊功能。

另一种方法是在通常情况下显示数字，但应用图标本身无法使用。

如果你真的想打破设计准则，你可以制作一个看起来像你的应用程序图标的小部件，并且小部件可以更好地控制它的绘制方式。一些应用程序已经发布，为Gmail，Google Voice，标准的消息应用程序执行此操作，并且未命名为电话应用程序，并且它们伪装成常规应用程序图标，因此可以。我并不真的推荐这种方法，但它是可用的。

徽章

Answer 2

1. 使用ShortcutBadger库计数

 dependencies { 
      compile 'me.leolin:ShortcutBadger:1.1.4@aar' 
     } 

2.

 public class MyFirebaseMessagingService extends FirebaseMessagingService { 

      private static final String TAG = "MyFirebaseMsgService"; 

      Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); 

      @Override 
      public void onMessageReceived(RemoteMessage remoteMessage) { 

       // Check if message contains a data payload. 
       if (remoteMessage.getData().size() > 0) { 
        Log.d(TAG, "1. remoteMessage.getData().size() > 0"); 
        Log.d(TAG, "Message data payload: " + remoteMessage.getData()); // {mobile=9458074124, name=Arvind} 
        Log.d(TAG, "Message Notification Body: " + remoteMessage.getNotification().getBody()); 
        Log.d(TAG, "Message getTitle: " + remoteMessage.getNotification().getTitle()); 
        Map<String, String> notificationData1 = remoteMessage.getData(); 

        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); 

        Log.d(TAG, sharedPreferences.getString("userid", "") + ".....id"+notificationData1.get("action")); 

        try { 

         if (notificationData1.get("actionID").equalsIgnoreCase(sharedPreferences.getString("userid", ""))) { 

         } else { 
          showNotificationForEvent(remoteMessage); 
          // } 

         } 


        }catch (Exception e) 
        { 
         e.printStackTrace(); 
        } 

       } 

      } 

      // Show Notification for Attend,Like,Comment,Rate 

      private void showNotificationForEvent(RemoteMessage remoteMessage) { 

       Log.d(TAG, "00. showNotificationForEvent"); 

       Map<String,String> notificationData = remoteMessage.getData(); 

       Intent resultIntent = new Intent(this, BubblesActivity.class); 
       resultIntent.putExtra("action", notificationData.get("action")); 
       resultIntent.putExtra("actionID", notificationData.get("actionID")); 

       resultIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP); 
       resultIntent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK); 
       resultIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); 

       PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, resultIntent, 
         PendingIntent.FLAG_ONE_SHOT); 

       NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this) 
         .setSmallIcon(R.drawable.ipray_appicon) 
     //    .setColor(ContextCompat.getColor(this, R.color.textColor)) 
         .setContentTitle(remoteMessage.getNotification().getTitle()) 
         .setContentText(remoteMessage.getNotification().getBody()/*+Utils.getPrefrence(getApplicationContext(), Const.KEY_USER_ID)+"...id"*/) 
         .setAutoCancel(true) 
         .setSound(defaultSoundUri) 
         .setContentIntent(pendingIntent); 


       //Vibration // new long[] { 1000, 1000, 1000, 1000, 1000 } 
       notificationBuilder.setVibrate(new long[] {500,1000}); 

       NotificationManager notificationManager = 
         (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE); 

       notificationManager.notify(0 /* ID of notification */, notificationBuilder.build()); 
      } 




      //This method will return true if the app is in background. 
      private boolean isAppIsInBackground(Context context) { 
       boolean isInBackground = true; 
       ActivityManager am = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE); 
       if (Build.VERSION.SDK_INT > Build.VERSION_CODES.GINGERBREAD) { 
        List<ActivityManager.RunningAppProcessInfo> runningProcesses = am.getRunningAppProcesses(); 
        for (ActivityManager.RunningAppProcessInfo processInfo : runningProcesses) { 
         if (processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) { 
          for (String activeProcess : processInfo.pkgList) { 
           if (activeProcess.equals(context.getPackageName())) { 
            isInBackground = false; 
           } 
          } 
         } 
        } 

       } 

       else { 
        List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(1); 
        ComponentName componentInfo = taskInfo.get(0).topActivity; 
        if (componentInfo.getPackageName().equals(context.getPackageName())) { 
         isInBackground = false; 
        } 
       } 

       return isInBackground; 
      } 


      @Override 
      protected Intent zzae(Intent intent) { 

       //Log.e("intentdata","DataPayload zzae"+intentToString(intent)); 

       return super.zzae(intent); 
      } 

      @Override 
      public boolean zzag(Intent intent) { 

       Log.e("intentdata","DataPayload zzag==="+intentToString(intent).toString()); 
       Log.e("intentdata","getData====="+intent.toString()); 

       if(intent.hasExtra("totalprayerdue")) 
       { 
        ShortcutBadger.applyCount(getApplicationContext(), Integer.parseInt(intent.getStringExtra("totalprayerdue"))); 
       } 

       return super.zzag(intent); 
      } 

      @Override 
      public void zzm(Intent intent) { 
       Log.e("intentdata","DataPayload zzm"+intentToString(intent)); 
       super.zzm(intent); 
      } 

      public static String intentToString(Intent intent) { 
       if (intent == null) 
        return ""; 

       StringBuilder stringBuilder = new StringBuilder("action: ") 
         .append(intent.getAction()) 
         .append(" data: ") 
         .append(intent.getDataString()) 
         .append(" extras: ") 
         ; 
       for (String key : intent.getExtras().keySet()) 
        stringBuilder.append(key).append("=").append(intent.getExtras().get(key)).append(" "); 

       return stringBuilder.toString(); 

      } 
     }