iOS——指纹识别

最新推荐文章于 2023-01-12 12:00:00 发布

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最新推荐文章于 2023-01-12 12:00:00 发布

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分类专栏： iOS

本文链接：https://blog.youkuaiyun.com/ymczy/article/details/50618553

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#import <LocalAuthentication/LocalAuthentication.h>

官方案例

LAContext *myContext = [[LAContext alloc] init];
NSError *authError = nil;
NSString *myLocalizedReasonString = <#String explaining why app needs authentication#>;
//首先使用canEvaluatePolicy 判断设备支持状态 
if ([myContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&authError]) {
    //验证身份是否有效
    [myContext evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics
                  localizedReason:myLocalizedReasonString
                            reply:^(BOOL success, NSError *error) {
            if (success) {
                // User authenticated successfully, take appropriate action
            } else {
                // User did not authenticate successfully, look at error and take appropriate action
            }
        }];
} else {
    // Could not evaluate policy; look at authError and present an appropriate message to user
}