ios - 关闭人脸识别 iOS 7 UIImagePicker

Question

有没有办法在呈现 UIImagePickerController 时关闭人脸识别(即出现在你脸上的黄色框？

_imagePicker = [[UIImagePickerController alloc] init];
_imagePicker.allowsEditing = YES;
_imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
_imagePicker.cameraDevice = UIImagePickerControllerCameraDeviceFront;
[self presentViewController:_imagePicker animated:NO completion:NULL];

基于这些docs有一个键可以禁用面部识别。如何设置此键以禁用它？

CIDetectorTracking
A key used to enable or disable face tracking for the detector. Use this option when you want to track faces across frames in a video

编辑

我将如何使用 AVFoundation 编写一个简单的相机？

Answer 1

根据UIImagePickerController的documentation .没有用于启用/禁用人脸识别的 API。

如果你真的想在用户拍照时禁用它，我建议你使用 Media Capture and Access to Camera在 AV Foundation Programming Guide .