获取用户允许发送通知的代码

写在AppDelegate里面的didFinish里面,并且引入头文件import UserNotifications

if #available(iOS 10.0, *) {
            UNUserNotificationCenter.current().requestAuthorization(options: [.alert,.carPlay,.sound,.badge]) { (isSuccess, error) in

                if isSuccess {

                    print("用户授权通知成功")

                }else{

                    print("授权失败")
                }
            }
        } else {
            // Fallback on earlier versions

            //iOS8之后需要获取用户的授权
            let notifySettings = UIUserNotificationSettings(types: [.alert,.badge,.sound], categories: nil)

            UIApplication.shared.registerUserNotificationSettings(notifySettings)
        }