Question

我正在创建一个示例应用，可以使用自定义按钮捕获图像和录制视频。我创建了一个UIImagePicker控制器的实例并分配了委托，但所有操作都已完成，但takePicture没有调用委托方法。

我也提到了一些帖子UIImagePickerController takePicture not responding和UIImagepickerController [takepicture] modal view disappears no delegate callback，但没有得到我的解决方案。

这是我的代码。如果我遗失任何内容，请告诉我：

- (void)viewDidLoad {
[super viewDidLoad];

self.navigationController.navigationBar.hidden = YES;
imagePicker = [[UIImagePickerController alloc] init];
[imagePicker setSourceType:UIImagePickerControllerSourceTypeCamera];
[imagePicker setAllowsEditing:NO];

[imagePicker setMediaTypes:[NSArray arrayWithObject:@"public.movie"]];
[imagePicker setCameraCaptureMode:UIImagePickerControllerCameraCaptureModeVideo];

[imagePicker setShowsCameraControls:NO];
[imagePicker setToolbarHidden:YES];
[imagePicker setDelegate:self];
UIView *overlayView = [[UIView alloc] initWithFrame:[[imagePicker view]frame]];
[overlayView setBackgroundColor:[UIColor clearColor]];

UIButton *btnCapture = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[btnCapture setFrame:CGRectMake(0, overlayView.frame.origin.y + overlayView.frame.size.height - 35, 30, 30)];
[btnCapture setTitle:@"c" forState:UIControlStateNormal];
[btnCapture addTarget:self action:@selector(captureFrame:) forControlEvents:UIControlEventTouchUpInside];

UIButton *btnStopVideo = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[btnStopVideo setFrame:CGRectMake(40, overlayView.frame.origin.y + overlayView.frame.size.height - 35, 30, 30)];
[btnStopVideo setTitle:@"s" forState:UIControlStateNormal];
[btnStopVideo addTarget:self action:@selector(btnStopTapped:) forControlEvents:UIControlEventTouchUpInside];

[overlayView addSubview:btnStopVideo];
[overlayView addSubview:btnCapture];
[imagePicker setCameraOverlayView:overlayView];

[self presentModalViewController:imagePicker animated:NO];



}

- (void)captureFrame:(id)sender {
[imagePicker takePicture];
}

但委托方法：- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info未被调用。

请帮我解决这个问题。

感谢所有

Answer 1

只需添加此行

即可

    picker.showsCameraControls = NO;

Answer 2

您需要确保在标题中实施UIImagePickerControllerDelegate协议。

·H

@interface MyViewController <UIImagePickerControllerDelegate>
{
    // 
}

@end

Answer 3

最好检查你的UIImagePickerController.delegate是否还是你的控制器。

UIImagePickerController takePicture不会调用任何委托方法

3 个答案:

·H