aaaaaaaaaaaaaaa！
最近好忙的，都没有写博客！！！
宝宝不开心，宝宝有小情绪了。
最近一直在拍皂（照）片，
用了很多美颜相机啊潮自拍啊这类拍照和美图的app，
所以对摄像头心生爱意~~~
所以准备学习一番，
之前做的项目中只有拍照功能选取图片没有学习到这些，
今天弥补上来。。。
AVCaptureDevice.h，必须要引入AVFoundation.framework包。
1. 前置和后置摄像头
enum {
AVCaptureDevicePositionBack = 1,
AVCaptureDevicePositionFront = 2
};
typedef NSInteger AVCaptureDevicePosition;
2. 闪光灯开关
enum {
AVCaptureFlashModeOff = 0,
AVCaptureFlashModeOn = 1,
AVCaptureFlashModeAuto = 2
};
typedef NSInteger AVCaptureFlashMode;
3. 手电筒开关
enum {
AVCaptureTorchModelOff = 0,
AVCaptureTorchModelOn = 1,
AVCaptureTorchModeAuto = 2
};
typedef NSInteger AVCaptureTorchMode;
4. 焦距调整
enum {
AVCaptureFocusModelLocked = 0,
AVCaptureFocusModeAutoFocus = 1,
AVCaptureFocusModeContinousAutoFocus = 2
};
typedef NSInteger AVCaptureFocusMode;
5. 曝光量调节
enum {
AVCaptureExposureModeLocked = 0,
AVCaptureExposureModeAutoExpose = 1,
AVCaptureExposureModeContinuousAutoExposure = 2
};
typedef NSInteger AVCaptureExposureMode;
6. 白平衡
enum {
AVCaptureWhiteBalanceModeLocked = 0,
AVCaptureWhiteBalanceModeAutoWhiteBalance = 1,
AVCaptureWhiteBalanceModeContinuousAutoWhiteBalance = 2
};
typedef NSInteger AVCaptureWhiteBalanceMode;