xcode UIStackView 中的第一个基线和最后一个基线属性
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First Baseline and Last Baseline Properties in UIStackView
提问by Burhanuddin Sunelwala
What effect do the First Baselineand Last Baselineproperties have on the subviews of a UIStackView?
做了什么样的影响第一基线和上次基线性能有一个子视图UIStackView？
Generally, can someone please illustrate the implementation of these values?
一般来说，有人可以说明这些值的实现吗？
回答by rob mayoff
Suppose you have a two-line text view (or field or label or button) and a three-line text view, and you add them to a horizontal stack view. Do you want to align their first lines, or their last lines? That's the difference.
假设您有一个两行文本视图（或字段、标签或按钮）和一个三行文本视图，并将它们添加到水平堆栈视图中。你想对齐他们的第一行还是他们的最后一行？这就是区别。
.FirstBaseline:
.FirstBaseline：
.LastBaseline:
.LastBaseline：
Note: I increased the vertical content hugging and compression resistance priorities to 1000 (required) to get this to work properly.
注意：我将垂直内容拥抱和压缩阻力优先级增加到 1000（必需）以使其正常工作。
