UIIMagePickerController在iPad ios 6.0上解散时崩溃

Question

我使用iOS 6.0在iPad 4上工作.

我有一个带有以下init的ViewController(MyPickerController):

- (id)init
{
    self = [super init];
    if (self) {
        _picker = [[UIImagePickerController alloc] init];
        _picker.delegate = self;
        _picker.sourceType = UIImagePickerControllerSourceTypeCamera;
        [self.view addSubview:_picker.view];
    }
    return self;
}

我实现了以下UIPickerControllerDelegate方法来dimiss MyPickerController:

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [self dismissViewControllerAnimated:YES completion:nil];
}

好吧,我有另一个视图控制器显示模态FormSheetStyle,当我点击一个按钮,我想MyPickerController用以下代码显示:

MyPickerController * pickerVC = [[MyPickerController alloc] init];
[self presentViewController:pickerVC animated:YES completion:nil];

在我的AppDelegate中我有以下方法:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
    
    return (NSUInteger)[application supportedInterfaceOrientationsForWindow:window] | (1<<UIInterfaceOrientationPortrait);
    
}

当我敲击取消按钮UIIMagePicker进入MyPickerController,并出现以下错误的应用程序崩溃:

Terminating app due to uncaught exception 'UIApplicationInvalidInterfaceOrientation', reason: 'preferredInterfaceOrientationForPresentation must return a supported interface orientation!

阅读stackoverflow上的相关问题,我还创建了以下UIImagePickerController类:

@implementation UIImagePickerController (NonRotating)

- (BOOL)shouldAutorotate
{
    return NO;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationMaskPortrait;
}

- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskPortrait;
}

@end

谢谢!

Answer 1

尝试这样做..

如果您的视图控制器位于 UINavigationController 内，则应该使用此类别作为导航控制器：

@implementation UINavigationController (autorotate)

- (NSUInteger)supportedInterfaceOrientations{
      return UIInterfaceOrientationMaskAll;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
      return UIInterfaceOrientationMaskPortrait;
}


@end