Landscape中的UIImagePickerController

Question

我一直在寻找答案,但无法想出任何答案.显然,iPhone SDK 3.0使得UIImagePickerController可以以横向模式显示 - 但我找不到任何允许这样做的方法.我认为如果应用程序默认情况下是横向的,它会自动调整图像控制器,但这对我不起作用.

谢谢你的帮助!

Answer 1

不需要子类; 简单地覆盖modalPresentationStyle属性.

    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.modalPresentationStyle = UIModalPresentationFormSheet;
    [viewController presentViewController:picker animated:YES completion:NULL];

Answer 2

我没有检查这是否违法,但它对我有用.如果您希望UIImagePickerController以横向方向代码启动(并保持):

//Initialize picker

UIImagePickerController * picker = [[UIImagePickerController alloc] init];
   picker.delegate = self;


//set Device to Landscape. This will give you a warning. I ignored it.
//warning: 'UIDevice' may not respond to '-setOrientation:'


[[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeRight];

//Set Notifications so that when user rotates phone, the orientation is reset to landscape.
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];

//Refer to the method didRotate:   
[[NSNotificationCenter defaultCenter] addObserver:self
              selector:@selector(didRotate:)
               name:@"UIDeviceOrientationDidChangeNotification" object:nil];

//Set the picker source as the camera   
picker.sourceType = UIImagePickerControllerSourceTypeCamera;

//Bring in the picker view   
[self presentModalViewController:picker animated:YES];

方法didRotate:

- (void) didRotate:(NSNotification *)notification

{
      //Maintain the camera in Landscape orientation
 [[UIDevice currentDevice] setOrientation:UIInterfaceOrientationLandscapeRight];

}

Answer 3

如果你只是需要摆脱警告尝试

@interface UIDevice ()
    -(void)setOrientation:(UIDeviceOrientation)orientation;
@end