xcode 自动布局约束警告“将尝试通过打破约束来恢复”
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Autolayout constraints warning “Will attempt to recover by breaking constraint”
提问by cldev
I am trying to implement a feed of news (somehow like instagram without comments or likes). It works, but xcode keep showing this error. I tried change all the constraints, however, I cant get to work. The tableview has a height of 475 and the image has the height of 400, leaving 75 for the white area with labels.
我正在尝试实施新闻提要（有点像没有评论或喜欢的 Instagram）。它有效，但 xcode 一直显示此错误。我尝试更改所有约束，但是，我无法开始工作。tableview 的高度为 475，图像的高度为 400，为带有标签的白色区域留下 75。
I did use
我确实用过
self.tableView.estimatedRowHeight = 475;
self.tableView.rowHeight = UITableViewAutomaticDimension;
Any help?
有什么帮助吗？
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:0x174096530 UIImageView:0x1743e9000.top == UITableViewCellContentView:0x17418af80.topMargin + 13>",
"<NSLayoutConstraint:0x1740977f0 V:[PFImageView:0x1743e8e00]-(0)-| (Names: '|':UITableViewCellContentView:0x17418af80 )>",
"<NSLayoutConstraint:0x174097840 V:[UIImageView:0x1743e9000]-(24)-[PFImageView:0x1743e8e00]>",
"<NSLayoutConstraint:0x174097890 H:|-(0)-[PFImageView:0x1743e8e00] (Names: '|':UITableViewCellContentView:0x17418af80 )>",
"<NSLayoutConstraint:0x174097930 H:[PFImageView:0x1743e8e00]-(0)-| (Names: '|':UITableViewCellContentView:0x17418af80 )>",
"<NSLayoutConstraint:0x174097ac0 PFImageView:0x1743e8e00.width == PFImageView:0x1743e8e00.height>",
"<NSLayoutConstraint:0x174097b60 V:[UIImageView:0x1743e9000(30)]>",
"<NSLayoutConstraint:0x174092ed0 'UIView-Encapsulated-Layout-Width' H:[UITableViewCellContentView:0x17418af80(375)]>",
"<NSLayoutConstraint:0x174092f20 'UIView-Encapsulated-Layout-Height' V:[UITableViewCellContentView:0x17418af80(44)]>"
)
Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x174097b60 V:[UIImageView:0x1743e9000(30)]>
Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
回答by cldev
I actually solved the problem changing the priority from the bottom of the image constrain to 750. Thanks for the help.
我实际上解决了将优先级从图像约束的底部更改为 750 的问题。感谢您的帮助。
