在视图上呈现 UIView
如何在 iOS 中创建一个自定义视图，使其显示在现有视图上方，但更小？它应该类似于 UIAlertView，但取自 .xib 文件。用户点击某个按钮后，小视图消失并出现正常视图。
如果这是可能的，我该怎么做？而且..如果这对您来说不难，请包含代码。
提前致谢！
How can I make a custom view in iOS which appears above the existing view,but smaller? It should be like UIAlertView, but taken from a .xib file. After user taps a certain button, the small view vanishes and the normal view appears.
If this is posiible, how can I do it? And.. if it's not hard for you, please, include code.
Thanks in advance!
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我认为您正在寻找的是模态视图。模态视图可以很容易地让视图接管屏幕一段时间，然后当它们被消除时，背景视图会从它停止的地方恢复，而不必担心谁在顶部或在部分模糊的视图中处理事件。
这里是苹果的文章描述它。
关键是让您的视图调用
[selfpresentModalViewController:popupControlleranimated:YES];的控制器类，其中“popupController”是您想要显示的视图的视图控制器。当您准备好让它消失时，请调用[self DismissModalViewControllerAnimated: YES];I think what you're looking for is a modal view. Modal views make it easy to have a view take over the screen for a little while, then when they get dismissed have the background view resume where it left off without having to worry about who's on top or handling events in partially-obscured views.
Here is Apple's article describing it.
They key is to have the controller class for your view call
[self presentModalViewController:popupController animated:YES];where "popupController" is the view controller for the view you want to show up. When you're ready to make it go away, call[self dismissModalViewControllerAnimated: YES];您只需在
UIWindow或可见的UIViewController视图上使用addSubview:方法即可显示UIView，您可以稍后通过在显示的UIView上调用removeFromSuperview来隐藏/删除它。You can just use the
addSubview:method on yourUIWindowor your visibleUIViewController's view to show theUIView, and you can hide/remove it later by callingremoveFromSuperviewon the presentedUIView.