问题描述
我在UIStackView中嵌入了几个UIButton.我了解UIStackView在布局时仅采用UIButton的固有大小.但是我想在UIStackView中增加UIButton的高度/宽度.没有UIStackView，我可以轻松地增加或减小UIButtons的框架大小. UIStackView有什么用?
I have couple of UIButtons embedded in UIStackView. I understand UIStackView takes only the intrinsic size of UIButton when laying it out. But I want to increase height/width of UIButton when inside UIStackView. Without UIStackView, I can easily increase or decrease UIButtons frame size. What is the deal with UIStackView?
详细信息:假设我给了3个仅包含UIImages而没有文本的UIButton.按钮1是80x80，按钮2的图像是30x30，按钮3的图像是30x30.我希望按钮2和3的触摸面积至少为45x45，而不会拉伸图像.当不在UIStackView中时，我可以像这样简单地调整UIButton的大小.但是使用UIStackView时，所有按钮的大小都是图像的大小(本征大小)，我不知道如何解决.
Detail: Let's say I gave 3 UIButtons with only UIImages and no text. Button 1 is 80x80, button 2 image is 30x30, button 3 image is 30x30. I would like touch area of button 2 and 3 to be atleast 45x45 without stretching the image. I can simply resize UIButton like this when it's not in UIStackView. But with UIStackView, all button sizes are the size of images (intrinsic size) which i don't know how to fix.
推荐答案
如果将宽度/高度约束添加到按钮堆栈视图，则会根据约束而不是按钮的固有大小来为其子视图设置大小.
If you add the width/height constraints to the buttons stack view will size it subviews based on the constraints and not the intrinsic size of buttons.
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