我正在使用 [电子邮件受保护] 进行推送通知。
当应用程序在屏幕上打开时，我会通过
onNotification问题1 当应用程序在后台（未杀死）时，我会在状态栏中收到通知，但点击它时，它会被关闭并且应用程序不会打开。
我也在 android logcat 中收到此错误：
06-21 17:26:03.892 5926 8672 D RNFMessagingService: onMessageReceived event received
06-21 17:26:03.913 5926 8600 E ReactNativeJS: No task registered for key RNFirebaseBackgroundMessage
--------- beginning of crash
06-21 17:26:03.932 5926 8601 E AndroidRuntime: FATAL EXCEPTION: mqt_native_modules
06-21 17:26:03.932 5926 8601 E AndroidRuntime: Process: com.mycustomapp, PID: 5926
06-21 17:26:03.932 5926 8601 E AndroidRuntime: com.facebook.react.common.JavascriptException: No task registered for key RNFirebaseBackgroundMessage, stack:
06-21 17:26:03.932 5926 8601 E AndroidRuntime: startHeadlessTask@57242:24
06-21 17:26:03.932 5926 8601 E AndroidRuntime: __callFunction@4106:49
06-21 17:26:03.932 5926 8601 E AndroidRuntime: <unknown>@3876:31
06-21 17:26:03.932 5926 8601 E AndroidRuntime: __guardSafe@4068:13
06-21 17:26:03.932 5926 8601 E AndroidRuntime: callFunctionReturnFlushedQueue@3875:21
06-21 17:26:03.932 5926 8601 E AndroidRuntime:
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at com.facebook.react.modules.core.ExceptionsManagerModule.showOrThrowError(ExceptionsManagerModule.java:56)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at com.facebook.react.modules.core.ExceptionsManagerModule.reportFatalException(ExceptionsManagerModule.java:40)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at java.lang.reflect.Method.invoke(Native Method)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:374)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:162)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at android.os.Handler.handleCallback(Handler.java:790)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at android.os.Handler.dispatchMessage(Handler.java:99)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:31)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at android.os.Looper.loop(Looper.java:164)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:194)
06-21 17:26:03.932 5926 8601 E AndroidRuntime: at java.lang.Thread.run(Thread.java:764)
06-21 17:26:03.938 590 590 E SELinux : avc: denied { find } for service=opdiagnose pid=5926 uid=10238 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:opdiagnose_service:s0 tclass=service_manager permissive=0
06-21 17:26:03.939 590 590 E SELinux : avc: denied { find } for service=opdiagnose pid=5926 uid=10238 scontext=u:r:untrusted_app:s0:c512,c768 tcontext=u:object_r:opdiagnose_service:s0 tclass=service_manager permissive=0
06-21 17:26:03.939 5926 8601 W OPDiagnose: getService:OPDiagnoseService NULL
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: Error while parsing timestamp in GCM event
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: java.lang.NumberFormatException: s == null
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at java.lang.Integer.parseInt(Integer.java:570)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at java.lang.Integer.parseInt(Integer.java:643)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at com.google.firebase.messaging.zzb.zzb(Unknown Source:81)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at com.google.firebase.messaging.zzb.zzc(Unknown Source:2)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at com.google.firebase.messaging.FirebaseMessagingService.zzd(Unknown Source:353)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at com.google.firebase.iid.zzg.run(Unknown Source:26)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at com.google.android.gms.common.util.concurrent.zza.run(Unknown Source:7)
06-21 17:26:03.946 5926 8672 W FirebaseMessaging: at java.lang.Thread.run(Thread.java:764)
问题2 当应用程序被终止或未启动时，我会在我的 android logcat 中收到此消息：
W GCM ：广播意图回调：结果=CANCELLED forIntent { act=com.google.android.c2dm.intent.RECEIVE flg=0x10000000 pkg=com.mycustomapp（有额外内容）}
就是这样。状态栏或其他任何地方都没有推送通知。
这些是我的AndroidManifest.xml中添加的服务：
<service android:name="io.invertase.firebase.messaging.RNFirebaseMessagingService">
<intent-filter>
<action android:name="com.google.firebase.MESSAGING_EVENT" />
</intent-filter>
</service>
<service android:name="io.invertase.firebase.messaging.RNFirebaseInstanceIdService">
<intent-filter>
<action android:name="com.google.firebase.INSTANCE_ID_EVENT"/>
</intent-filter>
</service>
<service android:name="io.invertase.firebase.messaging.RNFirebaseBackgroundMessagingService" />
应用程序启动时调用的函数：
firebase.messaging().hasPermission()
.then(enabled => {
if (enabled) {
// permissions granted
} else {
// permissions not granted
}
});
firebase.messaging().getToken()
.then(fcmToken => {
if (fcmToken) {
// user has a device token
console.log(fcmToken);
} else {
// user doesn't have a device token yet
}
});
firebase.notifications().getInitialNotification()
.then((notificationOpen: NotificationOpen) => {
if (notificationOpen) {
// App was opened by a notification
// Get the action triggered by the notification being opened
// Get information about the notification that was opened
}
});
this.onTokenRefreshListener = firebase.messaging().onTokenRefresh(fcmToken => {
// Process your token as required
console.log(fcmToken);
});
this.notificationDisplayedListener = firebase.notifications().onNotificationDisplayed((notification: Notification) => {
// Process your notification as required
// ANDROID: Remote notifications do not contain the channel ID. You will have to specify this manually if you'd like to re-display the notification.
console.log("onNotificationDisplayed", notification);
});
this.notificationListener = firebase.notifications().onNotification((notification: Notification) => {
// Process your notification as required
Alert.alert(
notification.title,
notification.body,
[
{text: 'OK', onPress: () => console.log('OK Pressed')},
],
{ cancelable: true }
)
});
this.notificationOpenedListener = firebase.notifications().onNotificationOpened((notificationOpen: NotificationOpen) => {
// Get the action triggered by the notification being opened
const action = notificationOpen.action;
// Get information about the notification that was opened
const notification: Notification = notificationOpen.notification;
console.log("onNotificationOpened", notification);
});
this.messageListener = firebase.messaging().onMessage((message: RemoteMessage) => {
// Process your message as required
console.log("onMessage", message);
});
这是我的 bgMessaging.js:
import { AppRegistry } from 'react-native';
import firebase from 'react-native-firebase';
// Optional flow type
import type { RemoteMessage } from 'react-native-firebase';
export default async (message: RemoteMessage) => {
// handle your message
console.log("RemoteMessage", message);
return Promise.resolve();
}
AppRegistry.registerHeadlessTask('AppBackgroundMessage', () => bgMessaging);
如果完全相关，我使用
react-native-navigation无头任务必须注册为 RNFirebaseBackgroundMessage。
更改您的代码：
AppRegistry.registerHeadlessTask('AppBackgroundMessage', () => bgMessaging);
至
AppRegistry.registerHeadlessTask('RNFirebaseBackgroundMessage', () => bgMessaging);
我希望您已经完成这 4 个步骤，以在后台列出 FCM 消息。
后台和终止状态消息
当应用程序处于后台或Kill状态时，接收消息时不会调用onMessage处理程序。相反，您需要通过 setBackgroundMessageHandler 方法设置后台回调处理程序。
要设置后台处理程序，请尽早在应用程序逻辑之外调用 setBackgroundMessageHandler：
//index.js 从'react-native'导入{AppRegistry}；进口 来自“@react-native-firebase/messaging”的消息传递；导入应用程序来自 './应用程序';
//注册后台处理程序 消息传递（）.setBackgroundMessageHandler（异步remoteMessage => {
console.log('消息在后台处理！',remoteMessage); });AppRegistry.registerComponent('app', () => App);
要在应用程序侦听来自 firebase 的通知时在后台显示通知，您必须创建要显示的本地通知。
我建议使用react-native-fcm库，它非常容易使用https://www.npmjs.com/package/react-native-fcm
如果一切配置正确，下面的文章可以给出一些原因。
我通过添加解决了这个问题：
messaging().onMessage(onMessageReceived);
messaging().setBackgroundMessageHandler(onMessageReceived);
在 index.js 而不是 App.js 并使用 react-native-notify 库在本地显示通知。
这是我的 index.js 用于 Firebase 通知配置的完整代码。
import notifee, {AndroidImportance, EventType} from '@notifee/react-native';
import messaging from '@react-native-firebase/messaging';
async function onMessageReceived(message) {
const channelId = await notifee.createChannel({
id: 'important',
name: 'Important Notifications',
importance: AndroidImportance.HIGH,
});
console.log('message received', JSON.stringify(message, null, 2));
try {
notifee.displayNotification({
title: message.notification.title,
body: message.notification.body,
android: {
channelId,
importance: AndroidImportance.HIGH,
},
});
} catch (e) {
console.log('error ....... push notification', e);
}
}
messaging().onMessage(onMessageReceived);
messaging().setBackgroundMessageHandler(onMessageReceived);
AppRegistry.registerComponent(appName, () => App);
希望这对您有帮助。