IOS UIImagePickerController(拍照或者读取相册)

 

UIImagePickerController

● 使用UIImagePickerController就可以进行拍照或者读取相册
● 通过sourceType属性来决定拍照还是读取相册
➢ UIImagePickerControllerSourceTypeCamera 相机
➢ UIImagePickerControllerSourceTypePhotoLibrary 相册

 

拍照-相册示例

 UIImagePickerController *picker = [[UIImagePickerController

alloc] init];

switch (buttonIndex) {
   case 0:

// 拍照 picker.sourceType =

UIImagePickerControllerSourceTypeCamera;
       break;

case 1:
// 相册

       picker.sourceType =
UIImagePickerControllerSourceTypePhotoLibrary;

break; }

// 设置代理
picker.delegate = self;
// 展示控制器
[self presentViewController:picker animated:YES completion:nil];

拍照-相册代理方法

● 拍照或者从相册取图片完毕后,就会通知代理
- (void)imagePickerController:(UIImagePickerController *)picker

didFinishPickingMediaWithInfo:(NSDictionary *)info
{

   _imageView.image =
info[UIImagePickerControllerOriginalImage];

   [picker dismissViewControllerAnimated:YES completion:nil];
}

添加图片到系统相册中

UIImageWriteToSavedPhotosAlbum([UIImage
imageNamed:@"Default.png"], self,
@selector(image:didFinishSavingWithError:contextInfo:),
NULL);

● 另外,有个UISaveVideoAtPathToSavedPhotosAlbum函数可以导入视频到相册 中