从iOS 11开始，你可以使用苹果的api: DeviceCheck

我试过了

let UUID = UIDevice.currentDevice().identifierForVendor?.UUIDString

而不是

let UUID = NSUUID().UUIDString

这很有效。

class func uuid(completionHandler: @escaping (String) -> ()) {
    if let uuid = UIDevice.current.identifierForVendor?.uuidString {
        completionHandler(uuid)
    }
    else {
        // If the value is nil, wait and get the value again later. This happens, for example, after the device has been restarted but before the user has unlocked the device.
        // https://developer.apple.com/documentation/uikit/uidevice/1620059-identifierforvendor?language=objc
        DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
            uuid(completionHandler: completionHandler)
        }
    }
}

if (UIDevice.current.identifierForVendor?.uuidString) != nil
        {
            self.lblDeviceIdValue.text = UIDevice.current.identifierForVendor?.uuidString
        }

在swift 4,5 您可以使用下面的代码获取UUID。

print(UIDevice.current.identifierForVendor!.uuidString)

输出

除此之外，您可以从连接的设备获得多个属性。

 UIDevice.current.name             // e.g. "My iPhone"
 UIDevice.current.model            // e.g. @"iPhone", @"iPod touch"
 UIDevice.current.localizedModel   // localized version of model
 UIDevice.current.systemName       // e.g. @"iOS"
 UIDevice.current.systemVersion    // e.g. @"15.5"

你可以在UIDevice类中使用identifierForVendor公共属性

let UUIDValue = UIDevice.currentDevice().identifierForVendor!.UUIDString
        print("UUID: \(UUIDValue)")

编辑 斯威夫特3:

UIDevice.current.identifierForVendor!.uuidString

最后编辑