快速集成TouchID

移动组周技术分享

快速集成TouchID

iPhone 5s，iOS 8，iOS7时未开放

依赖 LocalAuthentication.framework

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// 判断设备支持状态
LAContext *context = [[LAContext alloc] init];
[context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:nil];
// 如果可以
[context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"reason" reply:^(BOOL success, NSError *error) {
            if (success) {
                //验证成功，主线程处理UI
            }
            else
            {
	            // 重点：错误处理，分为多种错误
	            // 有验证失败、取消、手动输入密码等等相对应的逻辑处理
	            // 详见demo
	        }
        }];

错误类型

  • LAErrorAuthenticationFailed
  • LAErrorUserCancel
  • LAErrorUserFallback
  • LAErrorSystemCancel
  • LAErrorPasscodeNotSet
  • LAErrorTouchIDNotAvailable
  • LAErrorTouchIDNotEnrolled
  • LAErrorTouchIDLockout NS_ENUM_AVAILABLE(10_11, 9_0)
  • LAErrorAppCancel NS_ENUM_AVAILABLE(10_11, 9_0)
  • LAErrorInvalidContext NS_ENUM_AVAILABLE(10_11, 9_0)