objective-c - 如何显示相机但不让用户拍照？

Question

如何让用户看到前置摄像头，但阻止他们在 iPhone 4/4s 和/或 iPod Touch 4 上拍照、录像或切换到后置摄像头？

Answer 1

cameraPicker = [[UIImagePickerController alloc] init];
....
cameraPicker.showsCameraControls = NO;
cameraPicker.cameraDevice = UIImagePickerControllerCameraDeviceFront;

Answer 2

您可以使用 AVFoundation 框架打开相机。

试试这个示例代码https://developer.apple.com/library/ios/#samplecode/AVCam/Introduction/Intro.html#//apple_ref/doc/uid/DTS40010112。