Question

 //In AppDelegate.m, I am forcing every window to LandScapeRight.

  -(NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
return UIInterfaceOrientationMaskLandscapeRight;
   }

 //In ScanViewController.m, I am accessing camera and Image Library.

  @implementation ScanViewController
 -(void)viewDidLoad {
 [super viewDidLoad];
// Do any additional setup after loading the view.
 }
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
 }

- (NSUInteger)supportedInterfaceOrientations{
return UIInterfaceOrientationMaskAll;
 }
//Select photo from iPhone Image Library.
- (IBAction)photoFromAlbum:(id)sender 
 {
UIImagePickerController *photoPicker = [[UIImagePickerController alloc] init];
photoPicker.delegate = self;
photoPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
[self presentViewController:photoPicker animated:YES completion:NULL];
 }
//Take photo from camera
- (IBAction)photoFromCamera:(id)sender 
 {
UIImagePickerController *photoPicker = [[UIImagePickerController alloc] init]; 
photoPicker.delegate = self;
photoPicker.sourceType = UIImagePickerControllerSourceTypeCamera; 
[self presentViewController:photoPicker animated:YES completion:NULL];
 }
//Save the Image
- (void)imagePickerController:(UIImagePickerController *)photoPicker    didFinishPickingMediaWithInfo:(NSDictionary *)info
{
self.saveButton.enabled = YES;
self.filterButton.enabled = YES;
originalImage = [info valueForKey:UIImagePickerControllerOriginalImage];
[self.selectedImageView setImage:originalImage];
[self dismissViewControllerAnimated:YES completion:nil];
}

现在，我收到此错误＆＃34; PLUICameraViewController shouldAutorotate返回YES＆＃34;。我正在使用iOS 8，我希望我的应用程序能够在横向模式下工作，但是当我访问＆＃34; ScanViewController.m＆＃34;时，它可以是横向或纵向，因为我在iOS8中读到它，它是强制性的，访问相机时有纵向视图。任何建议都非常受欢迎。

Answer 1

UICameraViewController仅支持纵向模式。来自Apple文档：

重要

UIImagePickerController类仅支持纵向模式。此类旨在按原样使用，不支持子类化。此类的视图层次结构是私有的，不得修改，但有一个例外。您可以将自定义视图分配给cameraOverlayView属性，并使用该视图显示其他信息或管理相机界面与代码之间的交互。

因此，您应该在supportedInterfaceOrientations上返回UIInterfaceOrientationMaskPortrait，并且您还应该在shouldAutorotate上返回NO。

-(BOOL)shouldAutorotate
{
    return NO;
}

-(NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

访问相机和照片库错误

1 个答案: