我正在创建一个只能在横向模式下工作的应用程序。
在注册过程中，我想打开相机或展示 UIImagePickerController，但应用程序崩溃并出现以下错误：
*** Terminating app due to uncaught exception 'UIApplicationInvalidInterfaceOrientation', reason: 'Supported orientations has no common orientation with the application, and [PUUIAlbumListViewController shouldAutorotate] is returning YES'
如何在横向中显示图像选择器或相机？
【问题讨论】：
标签： ios objective-c uiimage uiimagepickercontroller uiinterfaceorientation
适用于 iPhone 和 iPad 的 Swift 3 解决方案
func openGallary(_ sender:UIButton)
{
imagepicker?.delegate = self
imagepicker?.allowsEditing = false
imagepicker!.sourceType = UIImagePickerControllerSourceType.photoLibrary
if UIDevice.current.userInterfaceIdiom == .phone
{
self.present(imagepicker!, animated: true, completion: nil)
}
else
{
imagepicker?.modalPresentationStyle = .popover
let presentationController = imagepicker?.popoverPresentationController
// You must set a sourceView or barButtonItem so that it can
// draw a "bubble" with an arrow pointing at the right thing.
presentationController?.sourceView = sender
self.present(imagepicker!, animated: true) {}
}
}
【讨论】：
我在 iOS 9 中遇到了同样的问题，并且我找到的任何建议的解决方案（这里或关于 SO 的类似问题）都不适合我。但是，我找到了一个使用 iOS 8 中引入的 UIPopoverPresentationController 的解决方案。这就是我正在做的，在 iPhone 上仅纵向和 iPad 上仅横向的应用程序中。在我的应用委托中，我有这个：
func application(application: UIApplication,
supportedInterfaceOrientationsForWindow window: UIWindow?)
-> UIInterfaceOrientationMask {
if UIDevice.currentDevice().userInterfaceIdiom == .Pad {
return .Landscape
} else {
return .Portrait
}
}
然后在需要显示照片选择器的视图控制器中：
@IBAction func choosePictureFromLibrary() {
let imagePickerController = UIImagePickerController()
imagePickerController.delegate = self
// Set the presentation style and grab the presentation controller,
// which is created for you.
imagePickerController.modalPresentationStyle = .Popover
let presentationController = imagePickerController.popoverPresentationController
// You must set a sourceView or barButtonItem so that it can
// draw a "bubble" with an arrow pointing at the right thing.
presentationController?.sourceView = photoButton
self.presentViewController(imagePickerController, animated: true) {}
}
使用.Popover 模态演示样式可以在 iPad 上的屏幕上提供一个漂亮、紧凑（基本上是 iPhone 大小）的视图。当您在 iPhone 上运行时，它只是像普通模式视图一样全屏运行。
【讨论】：
var supportedInterfaceOrientations 以返回 [.landscape, .portrait]（iOS 10）
实现shouldAutorotate方法：
- (BOOL)shouldAutorotate {
UIInterfaceOrientation interfaceOrientation = [[UIApplication sharedApplication] statusBarOrientation];
if (UIDeviceOrientationIsLandscape(interfaceOrientation)) {
return YES;
}
return NO;
}
将此代码添加到PUUIAlbumListViewController 和所有其他视图控制器。确保您在 Target 中仅选中横向（横向左侧和横向右侧）。
【讨论】：
I found solution, case closed. i add in my appdelegate.m:
-(NSUInteger)application:(UIApplication *)application
supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)
return UIInterfaceOrientationMaskAll;
else /* iPad */
return UIInterfaceOrientationMaskAllButUpsideDown;
}
【讨论】：