废话不说直接上代码

import UIKit
import LocalAuthenticationclass FingerprintVerifyManager {//单例实现static let instance = FingerprintVerifyManager()private init(){}//验证完的闭包回调typealias TouchIdVerify = (isSuccess:Bool, error:NSError?) ->()//调用指纹验证func touchIdWithHand(identtyVerify:TouchIdVerify) {let version = UIDevice.currentDevice().systemVersionlet result = version.compare("8.0.0")assert(result == NSComparisonResult.OrderedDescending, "IOS8.0以上可使用")let context = LAContext()let resultMsg = "验证指纹密码"//设备验证let (deviceVerify, error) = checkIsOpenFingerprintVerify()if deviceVerify {context.evaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, localizedReason: resultMsg, reply: { (isSuccess, error) -> Void inNSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void inidenttyVerify(isSuccess: isSuccess, error: error)})})}else {print("失败\(error!.code)")deviceVerifyWithError(error)}}//验证出现错误func deviceVerifyWithError(error:NSError!) {switch error!.code {case Int(kLAErrorTouchIDNotEnrolled):print("\(kLAErrorTouchIDNotEnrolled)")print("设备支持，但用户没有设置")break;case Int(kLAErrorPasscodeNotSet):print("\(kLAErrorPasscodeNotSet)")print("设备支持，但是被禁用")break;default:print("设备不支持")break;}}//设备是否打开/支持指纹验证func checkIsOpenFingerprintVerify() -> (isopen:Bool, error:NSError?) {let context = LAContext()var error:NSError?let isOpen = context.canEvaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, error: &error)return (isOpen, error)}
}

调用

    @IBAction func fingerprintVerify(sender: AnyObject) {let finerVerify = FingerprintVerifyManager.instancefinerVerify.touchIdWithHand { (isSuccess, error) -> () inprint("success:\(isSuccess), error:\(error?.code)")}}