前言
指纹识别，面部识别都属于生物识别
1.配置info.plist
// 跟相机一样需要在info.plist文件中添加配置,否则会闪退
// 字段: NSFaceIDUsageDescription
2.校验方式
LAPolicy 有两种方式
. LAPolicyDeviceOwnerAuthenticationWithBiometrics iOS8.0以上支持，只有指纹验证功能
. LAPolicyDeviceOwnerAuthentication iOS 9.0以上支持，包含指纹验证与输入密码的验证方式 （输入密码也可以验证通过）
-（void）click{
LAContext * context = [[LAContext alloc]init];
context.localizedFallbackTitle = @"ddd";
context.localizedCancelTitle = @"ccc";
NSError * error = nil;
if ([context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
// 支持指纹
NSLog(@"可以验证");
[self unlock];
}else{
NSLog(@"不能验证");
[self recoveryLock];
}
}
-(void)unlock{
LAContext * context = [[LAContext alloc]init];
context.localizedFallbackTitle = @"ddd";
context.localizedCancelTitle = @"ccc";
NSString * reason = @"999999 ";
[context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:reason reply:^(BOOL success, NSError * _Nullable error) {
dispatch_async(dispatch_get_main_queue(), ^{
if (success) {
NSLog(@"验证成功");
[self.navigationController pushViewController:[PUSHViewController new] animated:YES];
}else{
NSLog(@"验证失败");
// NSLog(@"不支持指纹");
switch (error.code) {
case LAErrorTouchIDNotEnrolled:
NSLog(@"设备没有注册touchID");
break;
case LAErrorUserCancel:
NSLog(@"点击了取消按钮");
break;
case LAErrorAuthenticationFailed:
// LAPolicyDeviceOwnerAuthentication 可以支持输入密码,进行验证
NSLog(@"LAErrorAuthenticationFailed,连续三次输入错误,支付宝弹出指纹不匹配");
break;
case LAErrorPasscodeNotSet:
// LAPolicyDeviceOwnerAuthentication 可以支持输入密码,但是用户没有设置密码
NSLog(@"用户没有设置密码");
break;
case LAErrorTouchIDNotAvailable:
NSLog(@"不支持指纹,可能手机版本低");
break;
case LAErrorUserFallback:
NSLog(@"点击输入密码按钮，,可以处理点击事件");
break;
case LAErrorTouchIDLockout:
// 类似支付宝,多次输入错误的话,锁定touchID,用密码接触锁定以后重新,重新支持touchID
{
NSLog(@"错误次数超过上限，需要手动输入密码");
[self recoveryLock];
}
break;
default:
break;
}
}
});
}];
}
-(void)recoveryLock{
NSLog(@"弹出输入密码");
LAContext * context = [[LAContext alloc]init];
context.localizedFallbackTitle = @"ddd";
context.localizedCancelTitle = @"ccc";
[context evaluatePolicy:LAPolicyDeviceOwnerAuthentication localizedReason:@"22222" reply:^(BOOL success, NSError * _Nullable error) {
if (success) {
NSLog(@"输入密码验证成功");
[self unlock];
}else{
NSLog(@"输入密码验证失败");
}
}];
}
reason = @"999999 ";localizedCancelTitle=@“6666”：localizedFallbackTitle = @"77777";
指纹输入错误reason = @"999999 ";localizedCancelTitle=@“6666”：localizedFallbackTitle = @"77777";
reason = @"999999 ";localizedCancelTitle=@“”：localizedFallbackTitle = @"";只有一个界面
localizedReason = @“999999”，可以自定义
验证成功，没有再主线程进行操作的话，会有上面的提示
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