Constraints and Stack View in iOS

Question

I have noticed that though a stack may have proper constraints set (all blue lines), but the views inside the stack have incomplete constraints indicated by red lines. Does it matter? Do I need to ignore the individual constraints and focus only on stack constraints?

Answer 1

通过实验，我发现我们需要解决所有约束问题，无论是堆栈视图还是堆栈内部的任何视图。