android - 无法在应用程序处于后台时收到 "open"通知

Question

当我想处理应用程序在后台时收到的通知时遇到问题。我确实收到了通知，当我点击通知时，应用程序打开但是 FCM.on 方法根本没有执行，它似乎没有处理回调。

当应用程序在前台运行时，一切正常，并且它可以毫无问题地处理通知。

这是react-native中的代码

FCM.on(FCMEvent.Notification, notif => {
      switch(notif.fcm.action){
        case 'fcm.ACTION.HANDLEMESSAGE':
          var data = {
            thread: notif.pk,
            message: JSON.parse(notif.message)
          }

          this.props.dispatch(fcmMSG(data));
          this.props.dispatch(addNotification(notif.pk, notif.job_id));
          break;

        case "fcm.ACTION.HANDLEAPPLICATION":
          axios.get(newServerURL + "/jobs/companyJobDetails/" + notif.recruitJobId + "/")
              .then((response) => {
                  var jobMainRecruits = response.data;
                  const {navigator} = this.refs;
                  navigator.push({
                  jobMainRecruits,
                  });
            })
              .catch((error) => {
                  console.log("ERROR")
            });        
          break;

        default:
      }
    });  
FCM.getInitialNotification().then(notif => {
      switch(notif.fcm.action){
        case 'fcm.ACTION.HANDLEMESSAGE':

          const { navigator } = this.refs;

          var thread = {
            candidate: notif.candidate,
            company: notif.company,
            candidate_avatar: notif.candidate_avatar,
            candidate_first_name: notif.candidate_first_name,
            candidate_last_name: notif.candidate_last_name,

            job_id: notif.job_id,
            pk: notif.pk,
            subject: notif.subject,
            message: JSON.parse(notif.message)
          }

          navigator.push({
            thread,
          });

          break;
        case "fcm.ACTION.HANDLEAPPLICATION":
          axios.get(newServerURL + "/jobs/companyJobDetails/" + notif.recruitJobId + "/")
              .then((response) => {
                  var jobMainMessages = response.data;
                  const {navigator} = this.refs;
                  navigator.push({
                  jobMainMessages,
                  });
            })
              .catch((error) => {
                  console.log("ERROR")
            });          
          break;

        default:

      }
    })

编辑: 这是我在后端的代码

push_service = FCMNotification(api_key=FCM_API_KEY)
                    registration_id = token.token
                    message_title = jobInfo.title
                    message_body = "New application"
                    message_icon = 'ic_launcher'
                    sound = 'Default'
                    color = '#362F64'
                    click_action='fcm.ACTION.NEWJOBAPPLICATION'
                    data_message = {'recruitJobId': self.request.data['job'], 'message_title': message_title, 'message_body': message_body}
                    result = push_service.notify_single_device(click_action=click_action, registration_id=registration_id, message_title=message_title, message_body=message_body, message_icon=message_icon, sound=sound, data_message=data_message, color=color)

提前感谢您的帮助。

Answer 1

The initial notification contains the notification that launches the app. If the user launches the app by clicking the banner, the banner notification info will be here rather than through FCM.on event. sometimes Android kills activity when the app goes to background, and then resume it broadcasts notification before JS is run. You can use FCM.getInitialNotification() to capture those missed events. source

FCM.getInitialNotification().then(notif => {
    // do some logic here
   // I usually add this function inside my root page
});