Question

我目前正在尝试编写聊天应用。我已经完成了使用Firebase聊天的基本功能。现在，当数据库中有新消息时，我想向用户推送通知。我现在使用下面显示的代码设置了云功能。

const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);

exports.sendPushNotification =           functions.database.ref('/message').onWrite(event => {
const payload = {
    notification: {
        title: 'message!',
        body: 'new message',
        badge: '1',
        sound: 'default',
    }
};
return admin.database().ref('fcmToken').once('value').then(allToken =>
    {
        if (allToken.val())
        {
            const token = Object.keys(allToken.val());
            return admin.messaging().sendToDevice(token, payload).then(response =>{
                return null;
            });
        }
        return null;
    });

}）;

通过查看日志，此代码似乎可以正常工作。我通过在真实设备中运行应用程序来测试了该功能，但是它不起作用。有线的事情是我可以使用云消息传递将通知发送到设备，并且可以正常工作。但是我不知道为什么这行不通。有人可以帮我吗？

AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
[FIRApp configure];
[GIDSignIn sharedInstance].clientID = [FIRApp defaultApp].options.clientID;
[GIDSignIn sharedInstance].delegate = self;
//notifications:
[FIRMessaging messaging].delegate = self;

[UNUserNotificationCenter currentNotificationCenter].delegate = self;
UNAuthorizationOptions authOptions = UNAuthorizationOptionAlert |
UNAuthorizationOptionSound | UNAuthorizationOptionBadge;
[[UNUserNotificationCenter currentNotificationCenter]
 requestAuthorizationWithOptions:authOptions
 completionHandler:^(BOOL granted, NSError * _Nullable error) {
     // ...
 }];

[application registerForRemoteNotifications];
return YES;

}

使用iOS Objective C更改Firebase数据库时如何推送通知？

0 个答案: