使用Photolibrary将shouldAutorotate设置为false

问题描述

如果我添加了一个弹出式窗口，可以从iPad访问我的相册，则系统始终会崩溃，并显示以下消息:

If I add a popover with access to my photo gallery from the iPad the system always crash with the following message:

但是我已经在我的项目信息中设置了仅用于支持横向模式.

But I already set up in my Projekt Information just to support Landscape Mode.

所以我添加了以下功能

override func shouldAutorotate() -> Bool {

    return false
}

但是我不知道如何使用它?如果我也启用了我的应用程序上的UIInterfaceOrientationPortrait，它就可以正常工作.但是我不想支持UIInterfaceOrientationPortrait.

But I don't know how to use it? If I enable UIInterfaceOrientationPortrait on my app too, it works fine. But I don't want to support UIInterfaceOrientationPortrait.

我将这样称呼我的弹出窗口:

I'll call my popover like this:

var popover: UIPopoverController = UIPopoverController(contentViewController: ImagePickerController)

popover.presentPopoverFromBarButtonItem(addImageButton,
                                        permittedArrowDirections: UIPopoverArrowDirection.Any,
                                        animated: true)

任何帮助将不胜感激

推荐答案

您别无选择.实际上，您已经解决了问题.正如您已经说过的，解决方案是在您的应用程序中启用纵向方向.您不必在其他任何视图控制器中使用它，但是必须将其包括在应用程序的允许方向中，因为您要显示的该一个视图控制器需要它.如果视图控制器要求与应用程序允许的交集之间的交集为空，则应用程序将崩溃(如您所见).

You have no choice. And in fact you have solved the problem already. As you have already said, the solution is to enable portrait orientation in your app. You don't have to use it in any of your other view controllers, but you must include it in the app's permissible orientations, because this one view controller that you are trying to show requires it. If the intersection between what the view controller requires and what the app permits is null, the app will crash (as you have seen).

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