如何在单击推送通知时打开特定屏幕以进行颤动

how to open particular screen on clicking on push notification for flutter(如何在单击推送通知时打开特定屏幕以进行颤动)

问题描述

我正在尝试在单击推送通知时打开特定屏幕，我的有效负载如下所示:

I am trying to achieve open specific screen on clicking push notification and my payload looks like this:

 var payload = {
        notification: {
            title: notificationTitle,
            body: notificationMessage,
            click_action:"/screena",sound:"default",
        }
    };

我收到通知，但我无法捕捉通知点击事件，如何捕捉它.我正在使用颤振消息传递

I am getting notification but I am unable to catch notification click event in flutter how to catch it. I am using flutter messaging

https://github.com/flutter/plugins/tree/master/包/firebase_messaging

我的 firebase 推送消息服务代码如下所示

and my firebase push message service code looks like this

 pushMessagingService() async{
messagingreference.configure(
onMessage: (Map<String, dynamic> message) {

  print("I am here in on message");
  print(message);
},
onLaunch: (Map<String, dynamic> message) {
  print("I am here onLaunch");
  print(message);
},
onResume: (Map<String, dynamic> message) {
  print("I am hereonResume");
  print(message);
},
);
  messagingreference.requestNotificationPermissions(
  const IosNotificationSettings(sound: true, badge: true, alert: true));
 messagingreference.onIosSettingsRegistered
  .listen((IosNotificationSettings settings) {
print("Settings registered: $settings");
 });
 messagingreference.getToken().then((String token) async {


print(token);
 });
 }

在这里，当我的应用程序在前台时，我可以收到 @xqwzts 在消息中所说的消息，但我的问题是如何从系统托盘中出现的推送通知中捕获点击事件并导航到所需的屏幕.

here I can get the message as @xqwzts said in on message when my app is in the foreground but my question is how to catch click event from push notification raised in the system tray and navigate to the required screen.

推荐答案

这里有几点:

1- click_action 必须设置为 FLUTTER_NOTIFICATION_CLICK"

2- click_action 必须在有效负载的 data 部分中设置

2- click_action has to be set in the data section of a payload

DATA='{
  "notification": {
    "body": "this is a body",
    "title": "this is a title",
  },
  "data": {
    "click_action": "FLUTTER_NOTIFICATION_CLICK",
    "sound": "default", 
    "status": "done",
    "screen": "screenA",
  },
  "to": "<FCM TOKEN>"
}'

这应该允许您在 Flutter 应用的 onMessage 处理程序中接收消息.

This should allow you to receive the message in the onMessage handler in your flutter app.

您可以从那里调用 Navigator.of(context).pushNamed(message['screen']).

如果此时您没有 BuildContext，您可以将 GlobalKey 注册为 的 navigatorKey 属性MaterialApp，并使用它通过 GlobalKey.currentState

If you don't have a BuildContext at that point, you can register a GlobalKey as the navigatorKey property of your MaterialApp, and use it to access your Navigator globally, via GlobalKey.currentState

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