用于设备令牌检索的 FCM 令牌在 iOS 15 上失败，但在 iOS 17 及更高版本上工作 - React Native

Question

我正在努力检索 FCM 令牌，并且我的实现在 iOS 17 上完美运行。但是，当我在 iOS 15 上尝试相同的代码时，我始终收到设备令牌的空值。以下是我的代码的相关部分。我是否需要更改较低 iOS 版本的实现？感觉这可能与应用程序跟踪透明度（ATT）权限有关。任何关于为什么会发生这种情况或如何解决它的见解将不胜感激。

const userlogin = async () => {
    const deviceType = Platform.OS === 'ios' ? 'IOS' : 'ANDROID';
    try {
        let fcmToken = await AsyncStorage.getItem('fcmToken');

        if (!EMAIL_REGEX.test(email)) {
            showError('Please enter a valid email');
            updateState({ isloading: false });
        } else if (password?.length < 4) {
            if (password?.length < 1) {
                showError('Please enter password');
                updateState({ isloading: false });
            } else {
                showError('Password should be at least 6 characters long');
                updateState({ isloading: false });
            }
        } else {
            let apidata = {
                email: email?.toLowerCase(),
                password: password,
                deviceToken: fcmToken,
                deviceType: deviceType,
            };
            actions.Userlogin(apidata)
                .then((res: any) => {
                    if (!res?.isProfileSetup && res?.tagsId?.length > 0) {
                        navigation.navigate(navigationString.PRESONALIZESCREEN, {
                            userData: res,
                        });
                        updateState({ isloading: false });
                    } else if (
                        (!res?.isProfileSetup && res?.tagsId?.length === 0) ||
                        res?.tagsId?.length === undefined
                    ) {
                        navigation.navigate(navigationString.HOBBIESSCREEN);
                        updateState({ isloading: false });
                    } else {
                        updateState({ isloading: false });
                        // showSuccess('Welcome!');
                    }
                    console.log(res, 'User has successfully logged in');
                })
                .catch((err: any) => {
                    if (err?.data) showError(err?.data);
                    updateState({ isloading: false });
                });
        }
    } catch (error) {
        updateState({ isloading: false });
        console.log(error, 'Error in user login');
    }
};

const getFcmToken = async () => {
    let fcmToken = await AsyncStorage.getItem('fcmToken');
    console.log(fcmToken, 'the old token');
    if (!fcmToken) {
        try {
            const fcmToken = await messaging().getToken();
            if (fcmToken) {
                console.log(fcmToken, 'the newly generated token');
                await AsyncStorage.setItem('fcmToken', fcmToken);
            }
        } catch (error) {
            console.log(error, 'Error in getting FCM token');
        }
    }
};

export async function requestUserPermission() {
    const authStatus = await messaging().requestPermission();
    const enabled =
        authStatus === messaging.AuthorizationStatus.AUTHORIZED ||
        authStatus === messaging.AuthorizationStatus.PROVISIONAL;

    if (enabled) {
        console.log('Authorization status:', authStatus);
        getFcmToken();
    }
}

这是我们遇到的错误

[Error: [messaging/unregistered] You must be registered for remote messages before calling getToken, see messaging().registerDeviceForRemoteMessages().] error in fcmToken. 

这意味着 getFcmToken 正在被调用。

Answer 1

该问题涉及 Firebase 库的兼容性问题。如果您需要更多详细信息，请联系我。