如何知道应用程序是否已从 android 通知栏打开？

Question

如何知道应用程序是否已从 android 通知栏打开？例如，我关闭了应用程序（从最近的应用程序列表中清除）。但我收到来自后端 websocket 的通知，我按下它，它打开了应用程序。所以我的问题是，有没有办法通过通知检查这是否已打开？

Answer 1

查看 react-native-push-notification 的来源 + 接下来的 50 行（最多 setContentIntent），您可以检查意图中的 "notification" 额外内容。

protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Bundle bundle = getIntent().getBundleExtra("notification");
        if(bundle != null){
            //check if it is the bundle of your notification and do your thing
        }
    }

否则您可以使用原生模块方法：

当您设置传递给通知 .setContentIntent() 方法的 PendingIntent 时，请指定您随后在应用程序中恢复的操作。示例通知：

Intent intent = new Intent(context, MyActivity.class);
intent.setAction("OPEN_MY_APP_FROM_NOTIFICATION");
NotificationCompat.Builder mNotifyBuilder = NotificationCompat.Builder(this, CHANNEL)
            .setContentTitle("Title")
            .setContentIntent(PendingIntent.getActivity(this, REQUEST_CODE, intent, PendingIntent.FLAG_UPDATE_CURRENT))            
mNotificationManager.notify(Notification_REQUEST_CODE,
                                    mNotifyBuilder.build())

在MyActivity.java

public void onCreate (Bundle savedInstanceState) {
    // Get intent, action and MIME type
    Intent intent = getIntent();
    String action = intent.getAction();
    if(action == "OPEN_MY_APP_FROM_NOTIFICATION"){
         //do whatever you have to do here
    }
}

附加信息： Handling intents Creating Intents

Answer 2

很简单，您会在推送通知侦听器中收到通知负载

import PushNotification from 'react-native-push-notification'
configurePushNotifications = () => {

    PushNotification.configure({
      // (optional) Called when Token is generated (iOS and Android)
      onRegister: function(token) {
        console.log('PushNotification token', token)
      },

onNotification 是您接收本地或远程通知的地方，当用户单击通知托盘时将调用它

      onNotification: function(notification) {
        console.log('notification received', notification)
      },

      // IOS ONLY (optional): default: all - Permissions to register.
      permissions: {
        alert: true,
        badge: true,
        sound: true,
      },

      // Should the initial notification be popped automatically
      // default: true
      popInitialNotification: true,

      /**
       * (optional) default: true
       * - Specified if permissions (ios) and token (android and ios) will requested or not,
       * - if not, you must call PushNotificationsHandler.requestPermissions() later
       */
      requestPermissions: true,
    })
  }

这就是通知对象的样子

{
    foreground: false, // BOOLEAN: If the notification was received in foreground or not
    userInteraction: false, // BOOLEAN: If the notification was opened by the user from the notification area or not
    message: 'My Notification Message', // STRING: The notification message
    data: {}, // OBJECT: The push data
}

如何知道应用程序是否已从 android 通知栏打开？

How to know if the app is open from the android notification tray?

android

react-native

react-native-push-notification