UIImagePickerController的使用一定要在controller中，因为需要弹出控制器，如果不是在controller中，则可以通过响应者链查找获得controller，也可以通过代理方法回调
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- (IBAction)pickPhotoLibrary:(id)sender {
if (_imagePicker == nil) {
_imagePicker = [[UIImagePickerController alloc] init];
}
_imagePicker.delegate = self;
_imagePicker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
[self presentViewController:_imagePicker animated:YES completion:nil];
}
- (IBAction)pickPhotoCamera:(id)sender {
if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
if (_imagePicker == nil) {
_imagePicker = [[UIImagePickerController alloc] init];
}
_imagePicker.delegate = self;
_imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
[self presentViewController:_imagePicker animated:YES completion:nil];
} else {
NSLog(@"照相机不可用。");
}
}
- (void) imagePickerControllerDidCancel: (UIImagePickerController *) picker {
_imagePicker.delegate = nil;
[self dismissViewControllerAnimated:YES completion:nil];
}
- (void) imagePickerController: (UIImagePickerController *) picker
didFinishPickingMediaWithInfo: (NSDictionary *) info {
UIImage *originalImage = (UIImage *) [info objectForKey:
UIImagePickerControllerOriginalImage];
/*-----------------------
UIImagePickerControllerMediaType; //由用户指定的媒体类型
UIImagePickerControllerOriginalImage; //获取原始图片数据
UIImagePickerControllerEditedImage; //编辑后的图片数据
UIImagePickerControllerCropRect; //裁剪后的图片数据
UIImagePickerControllerMediaURL; //视频存放路径
UIImagePickerControllerReferenceURL //
UIImagePickerControllerMediaMetadata //
*/
self.imageView.image = originalImage;
//设置图片缩放填充
self.imageView.contentMode = UIViewContentModeScaleAspectFill;
_imagePicker.delegate = nil;
[self dismissViewControllerAnimated:YES completion:nil];
}
//文章属于个人笔记，严禁商业转载
UIImagePickerController(获取相册图片，打开相机)
原文地址：http://blog.csdn.net/u010670117/article/details/42773521
