Question

我想做什么

当用户在通知托盘中点击fcm通知时，我想导航到特定屏幕。

我的代码

我已经遵循pub.dev中针对6.0.9版所述的完全相同的指示。

这是我的实现方式

_fcm.configure(
        onMessage: (Map<String, dynamic> message) async {
          print('@onMessage: $message');
        },
        onResume: (Map<String, dynamic> message) async {
          print('@onResume: $message');
          Navigator.push(context,
              MaterialPageRoute(builder: (context) => NotificationsScreen()));
        },
        onLaunch: (Map<String, dynamic> message) async {
          print('@onLaunch: $message');
          Navigator.push(context,
              MaterialPageRoute(builder: (context) => NotificationsScreen()));
        });

插件版本：firebase_messaging：^ 6.0.9

我还添加了以下配置：

app / build.gradle：

implementation 'com.google.firebase:firebase-messaging:20.1.0'

project / build.gradle：

classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:'1.3.50'"
classpath 'com.google.gms:google-services:4.3.3'

预期输出

当用户在背景中点击通知时，将调用onResume或onLaunch回调并将其重定向到上述屏幕。

实际输出

当应用程序在前台时，正确调用onMessage时，不会调用

onResume和onLaunch。

Answer 1

如果通知有效负载缺少“ click_action”：“ FLUTTER_NOTIFICATION_CLICK”，则 onclick和onresume函数不会被调用，但是onmessage函数会完美运行。在终端中尝试使用此有效载荷

fetchTopStreamsSuccess

必须调用FLUTTER_NOTIFICATION_CLICK来调用onresume和onmessage

Answer 2

Complete guide for notification handling:

In payload = [
    notification: {
       title: _title //Title of the notification
       data: {
             message: msg,
             click_action: 'FLUTTER_NOTIFICATION_CLICK'
             // Any message that you want to send in notification
             screen: 'chat'
       }
    }
]



//Inside app you configure as:

 FirebaseMessaging _firebaseMessaging = FirebaseMessaging();

 handleMessaging() {
_firebaseMessaging.configure(
  onMessage: (Map<String, dynamic> message) async {
    // showNotification(
    //     message['notification']['title'], message['notification']['body']);
    print("onMessage: $message");

    print('Data is: '+ message['data']['screen'].toString());

  },
  onLaunch: (Map<String, dynamic> msg) {
    print("Called onLaunch");
    print(msg);
    print('Data is: '+ msg['data']['screen'].toString());

    if(msg['data']['screen'].toString() == 'chat app') {
      return //Navigate to chat app
    }
    return null;
  },
  onResume: (Map<String, dynamic> msg) {
    //(App in background)
    // From Notification bar when user click notification we get this event.
    // on this event navigate to a particular page.
    print(msg);

    // // Assuming you will create classes to handle JSON data. :)
    // Notification ns = Notification(title: msg['title'], body: msg['body']);
   
    return null;
  },
   onMessage: (Map<String, dynamic> msg) {
   // (App in foreground)
  // on this event add new message in notification collection and hightlight the count on bell icon.
   // Add notificaion add in local storage and show in a list.
   // updataNotification(msg);
   print(msg);
   },
 );
}

在flutter中不会调用Firebase_messaging onResume和onLaunch回调

2 个答案: