不能加载带有Nib(.xib)的自定义UIView的子视图? [英] Subviews for custom UIView with Nib (.xib) don't load?

问题描述

我正在尝试创建一个带有关联的Nib(.xib)文件的自定义UIView类，以帮助进行布局和创建.

I am trying to create a custom UIView class with an associated Nib (.xib) file to help with layout and creation.

现在，即使子视图存在于我的nib文件中，并且已通过IBOutlets正确连接到我的自定义视图类，也不会在我的自定义视图中显示子视图.

Right now, no subviews in my custom view appear, even though they exist in my nib file and are hooked up properly to my custom view class via IBOutlets.

我尝试通过以下其他答案: 从视图加载带有XIB的自定义UIView使用IB的控制器视图

I tried going through the following other answer: Load custom UIView with XIB from a View Controller's view using IB

和这个: 和这个: http://soulwithmobiletechnology. blogspot.com/2011/06/create-uiview-with-nib-file-in-xcode-4.html

，但是方法[[NSBundle mainBundle] loadNibNamed:@"MyView" owner:self options:nil]似乎会调用-[initWithCoder:]，从而导致无限循环.

but the method [[NSBundle mainBundle] loadNibNamed:@"MyView" owner:self options:nil] seems to call -[initWithCoder:], leading to an infinite loop.

请让我知道要包括哪些其他详细信息来帮助解决此错误！

Please let me know what other details to include to help solve this bug!

更新1:我是否需要通过-[layoutSubviews]布置子视图?我的笔尖文件实际上没有布置吗?如果是这样，那么nib文件的目的是什么?

UPDATE 1: Do I need to lay out my subviews via -[layoutSubviews]? Does my nib file actually not lay it out? If so, then what is the point of the nib file?

推荐答案

打开任何视图控制器，并将此代码粘贴到您的viewDidAppear方法中:

Open any of your view controllers and paste this code into your viewDidAppear method:

NSArray * allTheViewsInMyNIB = [[NSBundle mainBundle] loadNibNamed:@"MyView" owner:self options:nil]; // loading nib (might contain more than one view)
MyCustomView* problemView = allTheViewsInMyNIB[0]; // getting desired view
problemView.frame = CGRectMake(0,0,100,100); //setting the frame
[self.view addSubview:problemView]; // showing it to user

这就是呈现视图所需要做的一切.如果要与此视图进行交互，则必须在类的接口中声明MyCustomView* problemView，而不是在方法中声明.

That's all you have to do, to present a view. If you want to interact with this view — you have to declare MyCustomView* problemView in your class' interface, not in the method.

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