Swift 获取device token

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在做推送通知的时候发现一个尴尬的事情，在测试推送时候需要获取device token，按照友盟的文档，我做了如下操作

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func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    let tokenStr = deviceToken.description.replacingOccurrences(of: "<", with: "").replacingOccurrences(of: ">", with: "").replacingOccurrences(of: " ", with: "")
    print(tokenStr)
}

打印出来什么鬼

看了一下发现deviceToken 参数和OC中的类型不相同，Data、NSData之分，同时使用description输出却的不同，果断这样处理，中间转换一下

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let deviceTokenData = NSData.init(data: deviceToken)
let tokenStr = deviceTokenData.description.replacingOccurrences(of: "<", with: "").replacingOccurrences(of: ">", with: "").replacingOccurrences(of: " ", with: "")