c语言程序设计用指纹解锁门,OC语言实现指纹识别

简单实现指纹识别的方法，大虾勿喷~

1、引入类

#import

2、实现方法

- (void) anthTouchID:(NSString *) describe complete:(void(^)(NSString *backStr)) complete

{

//检查操作系统是否达到指纹识别要求

if([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0){

//检查Touch ID是否可用

LAContext *anthContext = [[LAContext alloc]init];

NSError *error = [[NSError alloc]init];

BOOL touchIDAvailable = [anthContext canEvaluatePolicy:kLAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error];

if (touchIDAvailable) {

//指纹识别可用，获取验证结果

[anthContext evaluatePolicy:kLAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:describe reply:^(BOOL success, NSError * _Nullable error) {

//加入主线程中执行

dispatch_async(dispatch_get_main_queue(), ^{

if (success) {

//验证通过

if (complete) {

complete(@"success");

}

} else {

//验证失败

if (complete) {

complete(error.localizedDescription);

}

}

});

}];

} else {

//指纹识别不可用

if (complete) {

complete(error.localizedDescription);

}

}

} else {

//设备操作系统版本过低

if (complete) {

complete(@"Device system version too low.");

}

}

}

3、调用方法

[self anthTouchID:@"指纹识别的测试调用" complete:^(NSString *backStr) {

NSLog(@"输出:%@",backStr);

}];