ios - subview Controller 必须有一个共同的父 View Controller ？

Question

在我的应用程序中，我试图在使用自定义动画时切换 View ，每个 View 都是它们自己的 XIB。我制作了一个基本 View Controller 作为父 View 来保存所有代码，但我似乎无法让它工作。

我为我的应用程序和界面生成器中的所有 View Controller 制作了一个 IBOutlet，我将 socket 连接到适当的 Controller 。每个 Controller 也加载正确的 XIB，所以这些都不是问题。问题是以下更改 View 代码。

这是我的代码:

-(void)changeViews {
    CGRect frame = self.view.frame;
    frame.origin.x = CGRectGetMaxX(frame);
    theView4.view.frame = frame;

    [self.view addSubview:theView4.view];
    [self addChildViewController:theView4];

    [self transitionFromViewController:theView1 
                      toViewController:theView4 
                              duration:1 
                               options:UIViewAnimationOptionTransitionNone
                            animations: ^{
                                CGRect frame = self.view.frame;
                                theView4.view.frame = frame;
                                frame.origin.x -= frame.size.width;
                                self.view.frame = frame;
                            }
                            completion:completion:nil];

这是控制台崩溃:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Children view controllers <MyGameViewController: 0x1dd25210> and <Settings: 0x1dd249d0> must have a common parent view controller when calling -[UIViewController transitionFromViewController:toViewController:duration:options:animations:completion:]'

有人知道如何解决这个问题吗？

谢谢!

Answer 1

你可以使用这个:

When you use addChildViewController: to add the child view controller to the surrounding one. You also have to notify the child controller by didMoveToViewController: that it has been put into another controller. You can also use transitionFromViewController:toViewController: to exchange one view controller for another, optionally giving an animation.

这取自 here (我建议您完整阅读已接受的答案)。

长话短说，您还需要告知它确实已移入该父 View Controller 。