我希望UIImagePickerController能够在横屏模式下启动并保持该模式。我尝试了这里描述的解决方案(UIImagePickerController in Landscape)。
//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];
}
但是这个解决方案在iOS 4.0上不起作用。当在iOS 4.0中启动相机时,应用程序无响应。有人可以提供一个解决方法吗?