未在iPhone中使用AVCaptureSession调用UIImagePickerControl的方法

Question

我已经在iPhone应用程序中使用了AVCaptureSession来捕获照片。此外，我还想从PhotosLibrary上拍一张照片。

我已经实现了UIImagePickerController控件和它的所有方法。

我可以打开图书馆，但我不能得到我选择的照片。以及不调用PickerView的方法。这些方法没有响应。

对于图片库，有没有什么不同的方法来用AVCaptureSession实现UIImagePickerController控件？

请告诉我解决方案。

或者建议我替代Overlay的解决方案，因为我既想要动态控件的功能，也想要它们。

提前谢谢。

Answer 1

对于打开的图片库，请使用以下内容：

-(IBAction)pickphoto:(id)sender
{
    [self startMediaBrowserFromViewController: self usingDelegate: self];
}

- (BOOL) startMediaBrowserFromViewController: (UIViewController*) controller
                               usingDelegate: (id <UIImagePickerControllerDelegate,
                                               UINavigationControllerDelegate>) delegate{

    if (([UIImagePickerController isSourceTypeAvailable:
          UIImagePickerControllerSourceTypeSavedPhotosAlbum] == NO)
        || (delegate == nil)
        || (controller == nil))
        return NO;

    UIImagePickerController *mediaUI = [[UIImagePickerController alloc] init];
    mediaUI.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;

    mediaUI.mediaTypes = [[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie,kUTTypeImage, nil];
    mediaUI.allowsEditing = YES;

    mediaUI.delegate = delegate;

    [controller presentModalViewController: mediaUI animated: YES];
    return YES;

}

- (void) imagePickerController: (UIImagePickerController *) picker
 didFinishPickingMediaWithInfo: (NSDictionary *) info
{

    NSString *mediaType = [info objectForKey: UIImagePickerControllerMediaType];
 thumbnail = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
 [self dismissModalViewControllerAnimated:YES];
}

要捕获图像，请使用以下命令：

UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];

imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;

imagePicker.delegate = self;

[self presentViewController:imagePicker animated:YES completion:nil];