当应用程序在后台或关闭时，本机推送通知不显示横幅（在屏幕上弹出）

Question

我正在使用react-native-push-notification并关注其文档。当应用程序位于前台时，它运行良好，但是当应用程序位于后台时，我尝试从Firebase控制台发送通知，只是在状态栏中显示了该应用程序的一个小图标，但未显示横幅

我试图添加一个新频道，但仍然无法正常工作

componentDidMount() {

        NetInfo.isConnected.addEventListener('connectionChange', this.handleConnectivityChange);

        PushNotification.configure({

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

            // (required) Called when a remote or local notification is opened or received
            onNotification: function(notification) {
                console.log( 'NOTIFICATION:', notification );

                Platform.OS === 'ios' ? notification.finish(PushNotificationIOS.FetchResult.NoData) : null;
            },

            // ANDROID ONLY: GCM or FCM Sender ID (product_number) (optional - not required for local notifications, but is need to receive remote push notifications)
            senderID: Variables.GCM_SENDER_ID,

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

            visibility: 'public',

            popInitialNotification: true,

            requestPermissions: true,
        });
    }