[英]Unable to simultaneously satisfy constraints while applying auto layout constraints programatically
[英]iOS Auto Layout Unable to simultaneously satisfy constraints
我的代碼段如下
self.sortOptionsViewSmall.hidden = !self.sortOptionsViewSmall.hidden;
self.sortOptionsView.hidden=YES;
[UIView animateWithDuration:0.4 animations:^{
**self.sortViewHeightSmall.constant = (self.sortViewHeightSmall.constant == 0) ? 187 : 0;**
self.sortViewHeightConstraint.constant = (self.sortViewHeightSmall.constant == 187) ? 187 : 0;
self.tableViewHeightConstraint.constant = self.sortViewHeightSmall.constant == 0 ? 664 : 477;
[self.view layoutIfNeeded];
}];
如果我導航到其他視圖並向后導航,
self.sortViewHeightSmall.constant = (self.sortViewHeightSmall.constant == 0) ? 187 : 0;
給我下面的錯誤
Unable to simultaneously satisfy constraints.
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 added the unwanted constraint or constraints and fix it.
(Note: If you're seeing NSAutoresizingMaskLayoutConstraints that you don't
understand, refer to the documentation for the UIView property
translatesAutoresizingMaskIntoConstraints)
(
"<NSLayoutConstraint:0x181643e0 V:[SortOptionsView:0x18162970(187)]>",
"<NSLayoutConstraint:0x18162ac0 V:[SortOptionsView:0x18162010(0)]>",
"<NSLayoutConstraint:0x18155170 V:[SortOptionsView:0x18162970]-(0)-
[UITableView:0xea98e00]>",
"<NSLayoutConstraint:0x181551a0 V:[SortOptionsView:0x18162010]-(0)-
[UITableView:0xea98e00]>",
"<NSLayoutConstraint:0x18155260 V:[UIView:0x181544e0]-(0)-
[SortOptionsView:0x18162010]>",
"<NSLayoutConstraint:0x18155290 V:[UIView:0x181544e0]-(0)-
[SortOptionsView:0x18162970]>"
)
將嘗試通過打破約束來恢復
<NSLayoutConstraint:0x181643e0 V:[SortOptionsView:0x18162970(187)]>
中斷objc_exception_throw
以在調試器中捕獲此錯誤。 <UIKit/UIView.h>
列出的UIView
的UIConstraintBasedLayoutDebugging
類別中的方法也可能會有所幫助。 此錯誤。**
我嘗試使用setTranslatesAutoresizingMaskIntoConstraints:NO
但是它不起作用。
任何幫助表示贊賞。
檢查您的代碼。 在錯誤堆棧中,我看到兩個沖突的環境:
"<NSLayoutConstraint:0x181643e0 V:[SortOptionsView:0x18162970(187)]>",
"<NSLayoutConstraint:0x18162ac0 V:[SortOptionsView:0x18162010(0)]>",
SortOptionsView無法理解,高度大小為187點或0是什么? 您可以通過以下兩種方法解決此沖突:
我希望我以正確的方式送你。
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