3

这是我的查询。我已经在我的一个 react-native 应用程序中实现了 sendbird sdk 来实现聊天。我正在尝试实现推送通知。如 sendbird 的文档中所述，我已将 react-native-firebase 用于 firebase 推送通知。现在的问题是当应用程序处于前台时，我的 android 应用程序会收到推送通知。为此触发 OnMessageReceived() 侦听器。但是当我的应用程序在后台时，我没有收到来自 sendbird 的任何推送通知。没有触发任何 firebase 通知侦听器。

此外，当我尝试从 firebase 控制台发送通知时，我会收到前台和后台通知。

希望得到你们的回应，因为这可以帮助我成功实现此功能。

我的通知侦听器代码与此类似。但是，这里虽然没有添加显示通知代码。

async componentDidMount() {
  this.checkPermission();
  this.createNotificationListeners(); //Notification listener 
}

 async createNotificationListeners() {
  /*
  * Triggered when a particular notification has been received in foreground
  * */
  this.notificationListener = firebase.notifications().onNotification((notification) => {
      const { title, body } = notification;
      this.showAlert(title, body);
  });

  /*
  * If your app is in background, you can listen for when a notification is clicked / tapped / opened as follows:
  * */
  this.notificationOpenedListener = firebase.notifications().onNotificationOpened((notificationOpen) => {
      const { title, body } = notificationOpen.notification;
      this.showAlert(title, body);
  });

  /*
  * If your app is closed, you can check if it was opened by a notification being clicked / tapped / opened as follows:
  * */
  const notificationOpen = await firebase.notifications().getInitialNotification();
  if (notificationOpen) {
      const { title, body } = notificationOpen.notification;
      this.showAlert(title, body);
  }
  /*
  * Triggered for data only payload in foreground
  * */
  this.messageListener = firebase.messaging().onMessage((message) => {
    //process data message
    console.log(JSON.stringify(message));
  });
}

showAlert(title, body) {
  Alert.alert(
    title, body,
    [
        { text: 'OK', onPress: () => console.log('OK Pressed') },
    ],
    { cancelable: false },
  );
}
}

我的 AndroidManifest.xml 代码如下：-

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.CAMERA"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.WAE_LOCK"/>
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

<application ....

<activity android:name="com.facebook.devsupport.DevSettingsActivity"/>
<service android:name="io.invertase.firebase.messaging.RNFirebaseMessagingService" android:exported="false">

<intent-filter>
   <action android:name="com.google.firebase.MESSAGING_EVENT"/>
</intent-filter>
</service>
<service android:name="io.invertase.firebase.messaging.RNFirebaseBackgroundMessagingService"/>

<meta-data androd:name="com.google.firebase.messaging.default_notification_icon"
androd:resource="@mipmap/ic_launcher_logo"/>

<meta-data androd:name="com.google.firebase.messaging.default_notification_channel_id"
androd:value="test-channel"/>

</application>
4

2 回答 2

2

所以最后经过大量研究，我通过参考Sendbird的示例应用程序成功得到了解决方案，粘贴下面的链接。

https://github.com/sendbird/SendBird-JavaScript/tree/master/react-native-redux-sample

解决方案：-

您需要在 App 中注册频道。Js 组件DidMount()。

//应用js的代码

componentDidMount(){
const channel = new firebase.notification.Android.Channel(
"YOUR-CHANNEL-ID",
"CHANNEL NAME",
firebase.notification.Android.Importance.Max).setDescription("description);
firebase.notifications().android.createChannel(chanel);


//don't forget to add handler for app state change
Appstate.addEventListener('change',this._handleAppStateChange);

)
}

_handleAppStateChange = currentAppState =>{
  const sb = SendBird.getInstance();
if(sb)
{
   if(currentAppState == "active")
  {
     sb.setForegroundState();
  }
else if(currentAppState == "background")
{
   sb.setBackgroundState();
}
}

//现在在主 index.js 中添加以下行

import backgroundPush from './Services/push';

AppRegistry.registerHeadlessTask('RNFirebaseBackgroundMessage',()=>backgroundPush) //add this line after appRegistry Component and this is a key to be added to get notitification in background when using sendbird, whicch is nowhere mentioned in its official doc. It is in the sample App I have also added link to it.

并且导入的 push/backgroundPush 是一个包含以下源的文件：-

push.js //这个文件在示例应用程序中

import firebase from 'react-native-firebase'

export default async message => {
  try {
    const text = message.data.message;
    const payload = JSON.parse(message.data.sendbird);
    const localNotification = new firebase.notifications.Notification({
      show_in_foreground: true
    }).android
      .setChannelId('channel_id')
      .android.setSmallIcon('sendbird_ic_notification')
      .android.setPriority(firebase.notifications.Android.Priority.High)
      .setNotificationId(message.messageId)
      .setTitle('New message')
      .setSubtitle(`Unread message: ${payload.unread_message_count}`)
      .setBody(text)
      .setData(payload);
    return firebase.notifications().displayNotification(localNotification);
  } catch (e) {
    return Promise.resolve();
  }
};

这是我的查询未收到 Android 后台推送通知的解决方案。虽然，仍然在努力接收推送通知 iOS 端。

谢谢。

于 2020-05-23T11:42:19.007 回答
1

对于 android 设置"priority": "high"为通知有效负载

{
  "to": "cjUyGxLa3pU...",
  "data": {
    "title": "Some title",
    "body": "Some text"
  },
  "priority": "high"
}

对于 ios，我认为它可以通过在我的以下代码中使用以下代码来获取后台和前台通知AppDelegate.m：

#import <UserNotifications/UserNotifications.h>
#import <Firebase.h>
#import <FirebaseInstanceID/FirebaseInstanceID.h>
#import <FirebaseMessaging.h>

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if ([FIRApp defaultApp] == nil) {
    [FIRApp configure];
  }

if ([UNUserNotificationCenter class] != nil) {
    // iOS 10 or later
    // For iOS 10 display notification (sent via APNS)
    [UNUserNotificationCenter currentNotificationCenter].delegate = self;
    UNAuthorizationOptions authOptions = UNAuthorizationOptionAlert |
    UNAuthorizationOptionSound | UNAuthorizationOptionBadge;
    [[UNUserNotificationCenter currentNotificationCenter]
    requestAuthorizationWithOptions:authOptions
    completionHandler:^(BOOL granted, NSError * _Nullable error) {
    // …
    }];
   } else {
    // iOS 10 notifications aren’t available; fall back to iOS 8–9 notifications.
    UIUserNotificationType allNotificationTypes =
    (UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge);
    UIUserNotificationSettings *settings =
    [UIUserNotificationSettings settingsForTypes:allNotificationTypes categories:nil];
    [application registerUserNotificationSettings:settings];
   }
  [application registerForRemoteNotifications];
  [FIRMessaging messaging].delegate = self;
  [[FIRInstanceID instanceID] instanceIDWithHandler:^(FIRInstanceIDResult * _Nullable result,
    NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error fetching remote instance ID: %@", error);
      } else {
        NSLog(@"Remote instance ID token: %@", result.token);
        NSString* message = [NSString stringWithFormat:@"Remote InstanceID token: %@", result.token];
      }
    }
  ];
  [FIRMessaging messaging].autoInitEnabled = YES;

...
}

- (void)messaging:(FIRMessaging *)messaging didReceiveRegistrationToken:(NSString *)fcmToken {
  NSLog(@"FCM registration token: %@", fcmToken);
  NSDictionary *dataDict = [NSDictionary dictionaryWithObject:fcmToken forKey:@"token"];
  [[NSNotificationCenter defaultCenter] postNotificationName: @"FCMToken" object:nil userInfo:dataDict];
}

/Called when a notification is delivered to a foreground app.
-(void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions options))completionHandler
{
  completionHandler(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge);
}

如果您在 info.plist 上没有此键，也将其删除FirebaseAppDelegateProxyEnabled: YES，那么您可以在更改 AppDelegate.m 之前添加以先尝试Info.plist

注意： 1.5 年前我使用了相同的 react-native-firebase 库我收到了同样的问题，因为后来我转向react-native-fcm库，因为该库得到了高度维护

于 2020-05-21T21:50:27.967 回答