从自定义相机中删除取消按钮

Question

我在相机上使用自定义叠加框。在导航栏上，我在中间有一个应用程序图标，在左侧有一个后退按钮。

所以我想删除除捕获按钮之外的默认取消按钮，但我不想删除相机点击按钮。我做了研究，但我没有找到一个完美的答案。我已经使用了以下代码，但它也删除了点击按钮。

[picker setShowsCameraControls:YES];

Answer 1

我觉得你应该将自定义 CameraOverlayView 添加到你的 uiimagepickercontroller 并隐藏 CameraControls。这不会显示你的取消按钮。

 picker = [[UIImagePickerController alloc] init];                
 picker.delegate = self;
 picker.sourceType = UIImagePickerControllerSourceTypeCamera;
 [picker setShowsCameraControls:NO];
 CGRect screenBounds= [UIScreen mainScreen].bounds ;
 UIView *overlayView = [[UIView alloc] initWithFrame:screenBounds];
 [overlayView setAutoresizesSubviews:YES];
 [overlayView setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleBottomMargin|UIViewAutoresizingFlexibleTopMargin|UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin]; UIButton *captureButton=[[UIButton alloc]initWithFrame:CGRectMake(screenBounds.size.width/2-30, screenBounds.size.height-60,60 , 60)];
[captureButton addTarget:self action:@selector(captureImage:) forControlEvents:UIControlEventTouchUpInside];
[captureButton setBackgroundImage:[UIImage imageNamed:@"icon"] forState:UIControlStateNormal];
[overlayView addSubview:captureButton];
[picker setCameraOverlayView:overlayView];
[picker setCameraDevice:UIImagePickerControllerCameraDeviceRear];                
[self presentViewController:picker animated:YES completion:NULL];

这是捕获按钮的操作。

-(void)captureImage:(UIButton*)sender
{
[picker takePicture];
}

并使用此委托方法获取图像。

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    [picker dismissViewControllerAnimated:YES completion:nil];
}

Answer 2

我认为你禁用但关于删除我不确定，因为我知道这是不可能的，因为 UIImagePickerController 继承了 UINavigationController。然后就可以得到

UINavigationBar *bar = picker.navigationBar;
[bar setHidden:NO];
bar.navigationItem.rightBarButtonItem = doneButton;

它仅适用于 IOS 6

你可以使用这个来源ELCImagePickerController