有没有办法在iOS模拟器上使用苹果的Touch ID（指纹扫描仪）？

问题描述

我正在开发一款需要Touch ID身份验证的应用，所以我有什么方法可以在模拟器中使用Touch ID（指纹扫描仪）吗？

I am working on an app which would require Touch ID Authentication, so is there any way i can use Touch ID (fingerprint scanner) in the simulator ?

，请分享使用LocalAuthentication框架的某种示例代码。

Also, please do share some kind of example code for using LocalAuthentication framework.

推荐答案

从Xcode 7开始，模拟器支持'touchID'。下面的答案包含更多信息。

截至最新测试版（6），无法在模拟器上模拟指纹扫描。说实话，我怀疑即使在以后的测试版中也会包括这些。

As of Xcode 7 the Simulator supports 'touchID'. Answer below contains further info.

As of the latest beta (6) there is no way to simulate a fingerprint scan on the simulator. To be honest I doubt this will be included even in later betas.

您需要在设备上进行测试。

You will need to test on device.

要立即使用身份验证框架，您需要：
* XCode 6
*带iOS 8的iPhone 5s

To use the Authentication framework right now you need: * XCode 6 * iPhone 5s with iOS 8

您需要执行的步骤是：

了解该设备是否支持指纹验证以及是否已注册指纹：

@import LocalAuthentication;

// Get the local authentication context:
LAContext *context = [[LAContext alloc] init];

// Test if fingerprint authentication is available on the device and a fingerprint has been enrolled.
if ([context canEvaluatePolicy: LAPolicyDeviceOwnerAuthenticationWithBiometrics error:nil])
{
    NSLog(@"Fingerprint authentication available.");
}

仅验证指纹：

[context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"Authenticate for server login" reply:^(BOOL success, NSError *authenticationError){
    if (success) {
        NSLog(@"Fingerprint validated.");
    }
    else {
        NSLog(@"Fingerprint validation failed: %@.", authenticationError.localizedDescription);
    }
}];

根据用户的选择验证指纹或设备的密码：
这有点超出了问题的范围，请在以下网址找到更多信息：

Validate a fingerprint or the device’s passcode depending on the user’s choice:This is a little beyond the scope of a question here, please find more information at: https://www.secsign.com/fingerprint-validation-as-an-alternative-to-passcodes/

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