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前段时间工作中遇到了调用系统相机、相册需求，因此写了一个小工具，现在分享给大家。
1.概述
在iOS中要实现拍照、录像和相册最简单快捷的方法就是使用UIImagePickerController；本工具就是将UIImagePickerController做了进一步封装，使其更加便捷，让大家一行代码实现拍照、录像和相册功能。
2.接口方法
/**
* 单例
*
* @return VDCameraAndPhotoTool对象
*/
+ (instancetype)shareInstance;
/**
* 调用系统相机录像
*
* @param vc 要调用相机的控制器
* @param finishBack 录像完成的回调
*/
- (void)showVideoInViewController:(UIViewController *)vc andFinishBack:(cameraReturn)finishBack;
/**
* 调用系统相机
*
* @param vc 要调用相机的控制器
* @param finishBack 拍照完成的回调
*/
- (void)showCameraInViewController:(UIViewController *)vc andFinishBack:(cameraReturn)finishBack;
/**
* 调用系统相册
*
* @param vc 要调用相册的控制器
* @param finishBack 选择完成的回调
*/
- (void)showPhotoInViewController:(UIViewController *)vc andFinishBack:(cameraReturn)finishBack;
/**
* 显示相机、录像或相册（弹出alert）
*
* @param vc 控制器
* @param finsished 完成回掉
*/
- (void)showImagePickerController:(UIViewController *)vc andFinishBack:(cameraReturn)finishBack;
3.使用演示
- (IBAction)cameraClick:(id)sender {
[[VDCameraAndPhotoTool shareInstance] showCameraInViewController:self andFinishBack:^(UIImage *image,NSString *videoPath) {
[self removePlayerLayer];
if (image) {
self.imgView.image = image;
}
}];
}
- (IBAction)sheetClick:(id)sender {
[[VDCameraAndPhotoTool shareInstance] showImagePickerController:self andFinishBack:^(UIImage *image,NSString *videoPath) {
if (image) {//图片
[self removePlayerLayer];
self.imgView.image = image;
}
if (videoPath) {//视频
self.imgView.image = nil;
[self addPlayerLayer:videoPath];
}
}];
}
- (IBAction)photoClick:(id)sender {
[[VDCameraAndPhotoTool shareInstance] showPhotoInViewController:self andFinishBack:^(UIImage *image,NSString *videoPath) {
[self removePlayerLayer];
if (image) {
self.imgView.image = image;
}
}];
}
- (IBAction)videoClick:(id)sender {
[[VDCameraAndPhotoTool shareInstance] showVideoInViewController:self andFinishBack:^(UIImage *image,NSString *videoPath) {
if (videoPath) {
self.imgView.image = nil;
[self addPlayerLayer:videoPath];
}
}];
}
/**
* 移除player
*/
- (void)removePlayerLayer {
for (CALayer *layer in self.imgView.layer.sublayers) {
if ([layer isKindOfClass:[AVPlayerLayer class]]) {
[layer removeFromSuperlayer];
self.player = nil;
}
}
}
/**
* 添加player
*/
- (void)addPlayerLayer:(NSString *)videoPath {
NSURL *url = [NSURL fileURLWithPath:videoPath];
_player = [AVPlayer playerWithURL:url];
AVPlayerLayer *playerLayer=[AVPlayerLayer playerLayerWithPlayer:_player];
playerLayer.frame = self.imgView.frame;
[self.imgView.layer addSublayer:playerLayer];
[_player play];
}
4.参考资料
如果对iOS多媒体方面不太熟悉的同学可以查阅以下资料以及系统文档:
http://www.cnblogs.com/kenshincui/p/4186022.html#camera
http://blog.csdn.net/chenyong05314/article/details/17357221
如果想深度自定义相机的可以查看这篇文章：
http://www.jianshu.com/p/5860087c8981
5.源码
源码放在gitHub上，欢迎指正，记得star哦！
