Question

我创建的应用程序只支持横向方向，每当我调用UIImagePickerControllerSourceTypeCamera使用相机拍照时，都会工作，但是当我调用UIImagePickerControllerSourceTypePhotoLibrary时它会崩溃。

我曾尝试使用方法shouldAutoRotate（）来允许纵向但仍无效。解决这个问题的任何方法？

Answer 1

当您在iPad上收到此错误时

尝试以下代码并使用 UIModalPresentationStyle 来实现此目的： -

                self.imagepicker.modalPresentationStyle = UIModalPresentationStyle.Popover
                let popover = self.imagepicker.popoverPresentationController
                self.imagepicker.preferredContentSize = CGSizeMake(400 ,400)
                popover!.sourceView = self.view
                popover!.sourceRect = CGRectMake(CGRectGetMidX(self.view.bounds), CGRectGetMidY(self.view.bounds),0,0)
                popover!.permittedArrowDirections = UIPopoverArrowDirection(rawValue: 0)
                self.presentViewController(self.imagepicker, animated: true, completion: nil)

这是在斯威夫特，我希望你能轻易地转向目标-c。

我希望这会有所帮助。

Answer 2

将modalPresentationStyle的{{1}}设置为imagePickerController然后展示。像，

UIModalPresentationCurrentContext

Answer 3

将Presentviewcontroller代码放在NSOperationQueue

中

[[NSOperationQueue mainQueue] addOperationWithBlock:^{
            self.presentViewController(self.imagepicker, animated: true, completion: nil)
    }];

Answer 4

我给你解决方案

if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary])
{
    UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
    imagePicker.delegate = self;
    imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    imagePicker.wantsFullScreenLayout = YES;

    UIPopoverController *imagePopover = [[UIPopoverController alloc] initWithContentViewController:imagePicker];
    [imagePopover setDelegate:self];
    [imagePopover setPopoverContentSize:CGSizeMake(320, 500) animated:NO];  //set your content size
    [imagePopover presentPopoverFromRect:button.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];   //I give presentPopoverFromRect as button frame.Change here what you want

}

当方向仅允许Landscape时，iOS 9 UIImagePickerControllerSourceTypePhotoLibrary崩溃

4 个答案: