关于iOS 3D touch 指纹验证的随笔

file:///Users/OWen/Desktop/3DTouch.png

随着iOS系统不断的更新迭代，苹果总会推出一些新的功能，今天就研究了一下iOS8之后推出的指纹验证的功能，然后写了一个小demo，与君分享。。

上demo：   1：首先导入一个系统的库文件      #import <LocalAuthentication/LocalAuthentication.h>

2：

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

NSString *myLocalizedReasonString = @"小伙子,请输入你的指纹";

NSError *authError = nil;

if ([mycontent canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&authError]) {

[mycontent evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics

localizedReason:myLocalizedReasonString

reply:^(BOOL success, NSError *error) {

if (success) {

// User authenticated successfully, take appropriate action

} else {

NSLog(@"-----%@",error);

// 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

}

注意，测试神马的还得在真机上调试。