Device token is nil, when I download the app from testflight..?

Question

我从 testflight 下载应用程序然后我尝试登录我得到设备令牌 nil .. 请给我解决方案。

Answer 1

What function are you using to get the device token? You are probably making a small mistake. Copy-pasting your code helps.

in your appDelegate, you should have something like this,

// Called when APNs has assigned the device a unique token

func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    // Convert token to string
    let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})

    // Print it to console
    print("APNs device token: \(deviceTokenString)")

}