[iOS/swift]调用TouchID的一个小Demo
if context.canEvaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, error: &error){ [context.evaluatePolicy(LAPolicy.DeviceOwnerAuthenticationWithBiometrics, localizedReason: reasonString, reply: { ( success:Bool, evalPlicyError:NSError?)->Void in if success{ //从anthenticateuser()方法开始,在完成句柄块中和成功验证情况下 NSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void in self.loadData() }) }else{ //bug3:toRaw()改为rawValue println(evalPlicyError?.localizedDescription) switch evalPlicyError!.code{ case LAError.SystemCancel.rawValue: println("认证被系统取消") case LAError.UserCancel.rawValue: println("认证被用户取消") case LAError.UserFallback.rawValue: println("用户选择进入自定义密码") NSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void in self.showPasswordAlert() }) default: println("认证失败") NSOperationQueue.mainQueue().addOperationWithBlock({ () -> Void in self.showPasswordAlert() }) } } })] }else{ switch error!.code{ case LAError.TouchIDNotEnrolled.rawValue: println("TouchID没被录入") case LAError.PasscodeNotSet.rawValue: println("password没有被设置") default: println("TouchID不可用") } println(error?.localizedDescription) self.showPasswordAlert() } }