我们有一个带有 tableView 的 MainViewController,它提供了一个新的 modalViewController.
We have a MainViewController with a tableView, and it presents a new modalViewController.
MainViewController 仅限纵向,modalViewController 可以旋转.
The MainViewController is restricted to portrait only, and the modalViewController can rotate.
问题出在iOS8中,modalViewController旋转时,在MainViewcontroller中调用了iOS8中旋转的回调方法--(void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id
The problem is in iOS8, that when the modalViewController rotates, the callback method of rotation in iOS8 in MainViewcontroller is called - - (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
因此,UITableView 正在重新加载其数据,这是我们不希望的行为.
Thus, the UITableView is getting its data reloaded, which is a behaviour we don't want.
我们可以阻止 iOS 8 的这个功能,而不是旋转呈现的 UIViewController 吗?
Can we prevent this feature of iOS 8, and not rotate the presenting UIViewController?
所以经过几天的搜索和调查,我终于想出了一个可能的解决方案.
So after long days of searching and investigating, I finally came up with a possible solution.
首先,我可以使用导航控制器并推送 viewController 而不是呈现它,但它破坏了我的代码并且不是那么正确.
First of all, I can use navigation controller and push the viewController instead of presenting it, but it breaks my code and just isn't so true.
我能做的第二件事是不设置约束.我仍然可以使用自动布局,但如果我不设置约束,并设置默认约束,tableView 不会重新加载.当然这也不是很聪明的事情,因为我的 viewController 中有很多元素.
The second thing I can do is not setting constraints. I still can use autolayout, but if I don't set constraints, and let the default constraints to be set, the tableView doesn't get reloaded. of course this is also isn't very smart thing to do, as I have many elements in my viewController.
最后,我发现我可以在另一个 UIWindow 中显示这个模态"视图控制器.我创建 UIWindow 并将 modalViewController 设置为其 rootViewController.
Finally, I figured out that I can show this "modal" viewController in another UIWindow. I create UIWindow and set the modalViewController as its rootViewController.
我在 git 中放了一些示例项目:https://github.com/OrenRosen/ModalInWindow
I put some example project in git: https://github.com/OrenRosen/ModalInWindow
希望对您有所帮助.
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