问题描述
关于 transitionFromView:toView:duration:选项:完成:苹果文档在最后几行中说了这一点:
Regarding transitionFromView:toView:duration:options:completion: Apple doc says this in last few lines:
如果ViewController具有2个全屏尺寸的视图，一次只能显示一个，则没有问题:
If a ViewController has 2 full screen size views display one at a time then no issues:
[transitionFromView:self.view到View:self.view2 ...
[transitionFromView:self.view toView:self.view2...
但这意味着您有责任适当更新视图控制器以处理更改吗??
如果我这样做:
secondViewController *sVc = [[secondViewController alloc]init];
[transitionFromView:self.view toView:sVc.view...
我如何适当地更新视图控制器以处理更改的职责?或如何更新ViewController?
how its my responsibility to update the view controller appropriately to handle the change? or how to update ViewController?
更新
我创建了一个单视图项目，添加了secondVC，然后在firstVC上单击按钮，我这样做了:
I created a single view projec, add secondVC then in firstVC on button tap i did this:
self.svc = [[secondVC alloc]init];
[UIView transitionFromView:self.view toView:self.svc.view duration:1.0 options:UIViewAnimationOptionTransitionFlipFromLeft completion:^(BOOL finished) {}];
... secondVC viewDidLoad正在工作，其nslog正在工作.
... secondVC viewDidLoad is working its nslog is working.
然后如何处理viewcontroller的更新?
Then how to handle updating of viewcontroller?
推荐答案
语句您有责任适当地更新视图控制器以处理更改."这意味着您必须适当地调用视图层次结构委托方法，例如:
The statement "it is your responsibility to update the view controller appropriately to handle the change." it meant that you have to appropriately call view hierarchy delegate methods such as:
- (void)viewDidLoad;
- (void)viewDidUnload;
- (void)viewWillAppear;
- (void)viewDidDisappear;
以及负责适当视图管理的其他方法.
And other methods that are responsible for proper view management.
以下是一些 .
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