Question

当我通过Firebase控制台发送消息并且我的应用程序在后台或杀死一切正常时，会显示通知，但是当我的应用程序处于前台然后我发送消息时，我会

我使用带有android 8.0映像的模拟器

此外，当出现系统UI错误时，我的消息会记录下我发送的所有内容，只有这个错误而且日志中没有任何内容。

我的代码在这里：

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Rent-O-Roof</title>
    <style type="text/css">
      body{
      width: 100%;
      margin: 0;
      padding: 0;
      height: 100%;
      overflow: hidden;
      }
      .topnav{
      overflow: hidden;
      background-color: #333;
      }
      .topnav a{
      float: left;
      display: block;
      color: #f2f2f2;
      text-align: center;
      padding: 14px 16px;
      text-decoration: none;
      font-size: 17px;
      }
      .topnav a:hover{
      background-color: #ddd;
      color: black;
      }
      .active{
      background-color: #4CAF50;
      color: white;
      }
      .topnav .icon{
      display: none;
      }
      @media screen and (max-width: 600px){
      .topnav a:not(:first-child) {display: none;}
      .topnav a.icon {
      float: right;
      display: block;
      }
      }
      @media screen and (max-width: 600px){
      .topnav.responsive {position: relative;}
      .topnav.responsive .icon {
      position: absolute;
      right: 0;
      top: 0;
      }
      .topnav.responsive a{
      float: none;
      display: block;
      text-align: left;
      }
      }
      /* Style the footer */
      .footer {
      background-color:#777555 ;
      padding: 10px;
      text-align: center;
      }
    </style>
  </head>
  <body>
    <div class="topnav" id="myTopnav">
      <a href="#home" class="active">Home</a>
      <a href="#aboutus">About US</a>
      <a href="#contact">Contact US</a>
      <a href="#about">google form</a>
      <a href="#about">facebook page</a>
      <a href="#about">CUSTOMER REVIEW</a>
      <a href="#about">CAREERS</a>
      <a href="#about">TERM</a>
      <a href="#about">OPTIONS</a>
      <a href="javascript:void(0);" style="font-size:15px;" class="icon" onclick="myFunction()">&#9776;</a>
    </div>
    <script>
      function myFunction() {
          var x = document.getElementById("myTopnav");
          if (x.className === "topnav") {
              x.className += " responsive";
          } else {
              x.className = "topnav";
          }
      }
    </script>
    <div style="overflow: hidden;">
      <img src="file:///Users/varunwadhwa/Desktop/Header.png" style="width: 100%; height: auto; overflow: hidden; padding: 0;">
      <div style="background-color: red; font-size: 48px;">About Us
      </div>
    </div>
  </body>
</html>

编辑：这是崩溃后出现在日志中的内容：

public class MyFirebaseMessagingService extends FirebaseMessagingService {

    @Override
    public void onMessageReceived(RemoteMessage remoteMessage) {

        Log.d("FirebaseMessage", "FROM: " + remoteMessage.getFrom());

        if(remoteMessage.getData().size() > 0) {

            Log.d("FirebaseMessage", "Message Data: " + remoteMessage.getData());

        }

        if(remoteMessage.getNotification() != null) {

            Log.d("Firebae Message", "Message body: " +remoteMessage.getNotification().getBody());

            sendNotification(remoteMessage.getNotification().getBody());

        }

    }

    private void sendNotification(String body) {

        Intent intent = new Intent(this, MainActivity.class);
        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);


        if(Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

            String CHANNEL_ID = "test_channel";
            CharSequence name = "testChannel";
            int importance = NotificationManager.IMPORTANCE_HIGH;
            NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, name, importance);

            NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this,CHANNEL_ID)
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setContentTitle("[TEST] Message")
                    .setContentText(body)
                    .setAutoCancel(true)
                    .setContentIntent(pendingIntent);

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

            notificationManager.createNotificationChannel(mChannel);

            notificationManager.notify(0, notificationBuilder.build());

        }

    }

}

Answer 1

好的，我找到了解决方案。

所以，问题是这行代码.setSmallIcon(R.mipmap.ic_launcher)

我真的不知道为什么，但是当我将其更改为其他内容时，在我的情况下，drawable图标.setSmallIcon(R.drawable.friend_main_icon)可以正常运行，应用程序不再崩溃。

Firebase云消息传递系统UI已停止

1 个答案: