应用程序仅对Portrait启用，但UIImagePickerController在iOS6中旋转-Java 学习之路

Please note that the answer below - do not work for iOS6 so I still need an answer!

我的应用程序仅在纵向模式下启用 .

但是，如果我将UIImagePickerController作为子视图嵌入并旋转设备，则顶部和底部栏位于同一位置，但UIImagePickerController会旋转 .

如何防止它旋转？

这是代码：

[self.view.window addSubview:self.imagePickerController.view];
    self.imagePickerController.showsCameraControls = NO; 
    self.imagePickerController.view.frame = CGRectMake(0, 90, 320, 320);
    self.imagePickerController.allowsEditing = NO;

EDITED

我正在使用iOS6，其中shouldAutorotate不会被调用

4 回答

在您的课程中添加此 UIImagePickerController 类别，

@interface UIImagePickerController(Nonrotating)
- (BOOL)shouldAutorotate;
@end

@implementation UIImagePickerController(Nonrotating)

- (BOOL)shouldAutorotate {

  return NO;
}

@end

回复于 2024-05-04T08:23:40+08:00

在你的控制器中包含以下内容，这将起作用，我只是创建了 UIImagePickerController 的类别

@interface UIImagePickerController (private)

- (BOOL)shouldAutorotate;
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation;
- (NSUInteger)supportedInterfaceOrientations;
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;

@end


@implementation UIImagePickerController (Private)

- (NSUInteger)supportedInterfaceOrientations {

    return UIInterfaceOrientationMaskPortrait;
}

- (BOOL)shouldAutorotate {

    return UIInterfaceOrientationMaskPortrait;
}

- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation {
    return UIInterfaceOrientationPortrait;
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{  
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
@end

回复于 2024-05-04T08:23:40+08:00

一种可能性是覆盖

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation;

UIImagePickerController 的方法 . 我不确定这是否是最好的可能性，但它会起作用 .

因此，如果您只想将UIImagePickerController旋转为纵向，请使用以下代码

@interface PortraitUIImagePickerController : UIImagePickerController

@end

实现应如下所示

@implementation PortraitUIImagePickerController

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
{
    return UIInterfaceOrientationIsPortrait(toInterfaceOrientation);
}

@end

回复于 2024-05-04T08:23:40+08:00

0
投票最多的答案中的类别有效，但由于不鼓励使用类别，您还可以创建UIImagePickerController的子类并使用它 .

如果要避免旋转UIImagePickerController，请添加以下类

UINonRotatableImagePickerController.h
```
@interface UINonRotatableImagePickerController : UIImagePickerController

@end
```
UINonRotatableImagePickerController.m
```
@implementation UINonRotatableImagePickerController

- (BOOL)shouldAutorotate
{
    return NO;
}

@end
```
您必须更改故事板中的UIImagePicker类以使用UILandscapeImagePickerController，或者如果您在代码中分配它，则更改
```
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
```
至
```
UIImagePickerController *picker = [[UINonRotatableImagePickerController alloc] init];
```
并在您的代码中包含UINonRotatableImagePickerController.h .
回复于 2024-05-04T08:23:40+08:00

应用程序仅对Portrait启用，但UIImagePickerController在iOS6中旋转

4 回答

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