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应用程序在后台接收推送通知时运行良好，但在前台时崩溃。我正在使用 RN 0.49 和 react-native-fcm 11.3.1 包。

我的代码如下所示：

    FCM.on(FCMEvent.Notification, async (notif) => {
    // there are two parts of notif. notif.notification contains the notification payload, notif.data contains data payload
    if(notif.local_notification){
        // return;
        console.log("1111");
        this.showLocalNotification(notif);
    }
    if(notif.opened_from_tray){
      //iOS: app is open/resumed because user clicked banner
      //Android: app is open/resumed because user clicked banner or tapped app icon
      //   return;
        console.log("2222");
        this.showLocalNotification(notif);

    }
    // await someAsyncCall();

    if(Platform.OS ==='ios'){
      //optional
      //iOS requires developers to call completionHandler to end notification process. If you do not call it your background remote notifications could be throttled, to read more about it see https://developer.apple.com/documentation/uikit/uiapplicationdelegate/1623013-application.
      //This library handles it for you automatically with default behavior (for remote notification, finish with NoData; for WillPresent, finish depend on "show_in_foreground"). However if you want to return different result, follow the following code to override
      //notif._notificationType is available for iOS platfrom
      switch(notif._notificationType){
        case NotificationType.Remote:
          notif.finish(RemoteNotificationResult.NewData) //other types available: RemoteNotificationResult.NewData, RemoteNotificationResult.ResultFailed
          break;
        case NotificationType.NotificationResponse:
          notif.finish();
          break;
        case NotificationType.WillPresent:
          notif.finish(WillPresentNotificationResult.All) //other types available: WillPresentNotificationResult.None
          break;
      }
    }
});

FCM.on(FCMEvent.RefreshToken, (token) => {
    console.log("---------Refresh Token-------------")
    console.log(token)
    // fcm token may not be available on first load, catch it here
});

showLocalNotification(notif) {
        FCM.presentLocalNotification({
            title: notif.title,
            body: notif.body,
            priority: "high",
            click_action: notif.click_action,
            show_in_foreground: true,
            local: true
        });
    }

componentDidMount(){
        // iOS: show permission prompt for the first call. later just check permission in user settings
        // Android: check permission in user settings
        FCM.requestPermissions().then(()=>console.log('granted')).catch(()=>console.log('notification permission rejected'));

        FCM.getFCMToken().then(token => {
            console.log(token)
            // store fcm token in your server
        });

        this.notificationListener = FCM.on(FCMEvent.Notification, async (notif) => {
            console.warn("listening.......................");
        });

        // initial notification contains the notification that launchs the app. If user launchs app by clicking banner, the banner notification info will be here rather than through FCM.on event
        // sometimes Android kills activity when app goes to background, and when resume it broadcasts notification before JS is run. You can use FCM.getInitialNotification() to capture those missed events.
        // initial notification will be triggered all the time even when open app by icon so send some action identifier when you send notification
        FCM.getInitialNotification().then(notif => {
           console.log(notif)
        });
    }

MainApplication.java

    public class MainApplication extends MultiDexApplication {

  // Needed for `react-native link`
  public List<ReactPackage> getPackages() {
    return Arrays.<ReactPackage>asList(
        // Add your own packages here!
        // TODO: add cool native modules
//            new MainReactPackage(),

            new RNBackgroundGeolocation(),
            // Needed for `react-native link`

            new FIRMessagingPackage(),
            //new RNBackgroundGeolocation(),
            //new RNFirebasePackage(),
            new VectorIconsPackage()
            //new RNFirebaseMessagingPackage()
    );
  }
}

Android Studio 给出了这个错误：

java.lang.ClassCastException：xyzMainApplication 无法在 com.evollu.react.fcm.MessagingService$1.run(MessagingService.java:41) 的 com.facebook.react.ReactApplication 在 android.os.Handler.handleCallback(Handler.java :751) 在 android.os.Handler.dispatchMessage(Handler.java:95) 在 android.os.Looper.loop(Looper.java:154) 在 android.app.ActivityThread.main(ActivityThread.java:6682) 在 java.lang.reflect.Method.invoke(Native Method) 在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1520) 在 com.android.internal.os.ZygoteInit.main( ZygoteInit.java:1410)

我不知道它是什么导致应用程序在应用程序打开时仅在前台状态下崩溃！关于如何解决这个问题的任何想法？

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0 回答 0