Interface Builder /将UIButton放在UIImageView前面（当在UImageView之前创建了UIButton ...） [英] Interface Builder / Putting UIButton in front of UIImageView (when UIButtons have been created before UImageView...)

问题描述

我已经使用Interface Builder在视图中定义了几个按钮。现在，我想在这个视图中添加一个UIImageView。我们的想法是在已有的按钮后面显示UIImageView。我在视图中删除了一个新的UIImage视图但奇怪的是，我无法将图像显示在按钮下面（按钮被新鲜的UIImageView隐藏）。当我将旧按钮移动到UIImageView上时，它们仍然在它们前面，但我想还有另一种方法可以达到我想要的效果。每个对象都没有前景/背景级别的概念吗？我也注意到删除一个新按钮工作正常。但我不想重新定义我现有的所有按钮，因为它们已连接到我的代码。

I have already defined several buttons in a view with Interface Builder. Now, I would like to add an UIImageView in this view. The idea is to have the UIImageView display behind the already existing buttons. I have dropped a new UIImage View in the view but curiously, I cannot get the image appear under the buttons (buttons are hidden by the fresh UIImageView). When I move my old buttons onto the UIImageView, then they remain in front of them but I guess there is another way to reach what I want. Is not there a concept of "foreground/background level" for each object ? I also noticed that dropping a new button works fine. But I do not want to redefine all my existing buttons are they are already connected to my code.

感谢您的帮助

Apple 92

推荐答案

您只需打开IB的文档窗口（单击窗口 - >文档） 。

You can just open the Document window of the IB (Click on Window--> Document).

打开后，展开视图块并拖动刚刚添加到列表中的UI按钮上方的UIImageView。这将是必要的

Once opened expand the view block and drag the UIImageView just added above the UIbuttons previously added in the list. This will do the needful

希望这会有所帮助!!

Hope this helps!!

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