[英]Unable to simultaneously satisfy constraints while applying auto layout constraints programatically
[英]iOS Auto Layout Unable to simultaneously satisfy constraints
我的代码段如下
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];
}];
如果我导航到其他视图并向后导航,
self.sortViewHeightSmall.constant = (self.sortViewHeightSmall.constant == 0) ? 187 : 0;
给我下面的错误
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]>"
)
将尝试通过打破约束来恢复
<NSLayoutConstraint:0x181643e0 V:[SortOptionsView:0x18162970(187)]>
中断objc_exception_throw
以在调试器中捕获此错误。 <UIKit/UIView.h>
列出的UIView
的UIConstraintBasedLayoutDebugging
类别中的方法也可能会有所帮助。 此错误。**
我尝试使用setTranslatesAutoresizingMaskIntoConstraints:NO
但是它不起作用。
任何帮助表示赞赏。
检查您的代码。 在错误堆栈中,我看到两个冲突的环境:
"<NSLayoutConstraint:0x181643e0 V:[SortOptionsView:0x18162970(187)]>",
"<NSLayoutConstraint:0x18162ac0 V:[SortOptionsView:0x18162010(0)]>",
SortOptionsView无法理解,高度大小为187点或0是什么? 您可以通过以下两种方法解决此冲突:
我希望我以正确的方式送你。
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