ios - 如何找出不必要的约束constraints in following list is one you don't want

Question

Probably at least one of the constraints in the following list is one you don't want. Try this: (1) look at each constraint and try to figure out which you don't expect; (2) find the code that adde...

迷茫 · Answer

嚴格講，上述提示並不是出錯的約束，而是多餘的約束，例如設定了上、下邊距，同時又pin了高度，就會導致出現這樣的問題。感覺你的問題應該是設定了UIView:0x166ea400高度為37，然後又設定它等於另一個UIView:0x16526700寬度的0.0894。這樣就冗餘了。
而排查的方法是，在storyboard中挨個找UIView，37是個很好的切入點，我是這樣做的，很笨。

大家讲道理 · Answer

說你設定了一個View的高度等於另外一個view1的寬度，view1的寬度又等於view2的寬度，然後view2的寬度不是確定值，會引起衝突，這種應該是設定約束優先權的問題？

ios - 如何找出不必要的约束constraints in following list is one you don't want

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