在view里动态添加控件，再代码添加约束后，约束不起作用！

[工程师123123123]

我有一个view，名叫_takeview，里面动态添加一个控件_commbox，

先定义commbox位置，添加到take view里成为其子视图，最后添加约束，

代码如下：

_commbox = [[Commbox alloc] initWithFrame:CGRectMake(0, 0,self.takeview.frame.size.width, self.takeview.frame.size.height)];

[self.takeview addSubview:_commbox];

[self.view addConstraint:[NSLayoutConstraint constraintWithItem:self.commbox attribute:NSLayoutAttributeLeading relatedBy:NSLayoutRelationEqualtoItem:self.takeview attribute:NSLayoutAttributeLeft multiplier:1.0 constant:0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:self.commbox attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqualtoItem:self.takeview attribute:NSLayoutAttributeTop multiplier:1.0 constant:0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:self.commbox attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqualtoItem:self.takeview attribute:NSLayoutAttributeBottom multiplier:1.0 constant:0]];
[self.view addConstraint:[NSLayoutConstraint constraintWithItem:self.commbox attribute:NSLayoutAttributeTrailing relatedBy:NSLayoutRelationEqualtoItem:self.takeview attribute:NSLayoutAttributeTrailing multiplier:1.0 constant:0]];



takeview的约束我是在故事版里定义的，takeview的tailing约束是距离整个屏幕的tailingmargin有一定距离的。我是希望commbox和takeview一样大小的，不要超出其范围。

这段代码是在viewcontroller的viewdidload里面动态添加的，运行后发现，commbox的tailing超出了整个屏幕的外面，也就是说commbox的大小长宽，超出了takeview.frame.size的大小。

请问怎么解决？

[jimmy808126]

commbox.translatesAutoresizingMakeIntoConstraints = NO; 这句调用下

[工程师123123123]

引用 1 楼 jimmy808126 的回复:

commbox.translatesAutoresizingMakeIntoConstraints = NO; 这句调用下

没什么变化啊，是不是故事版里的约束与代码约束之间产生了矛盾，或者是有了代码约束，故事版约束就没有发挥作用了。

[工程师123123123]

现在报错内容为 2015-11-06 11:36:02.587 UneditableCommBox[5631:1730151] 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) ( "<NSIBPrototypingLayoutConstraint:0x14667160 'IB auto generated at build time for view with fixed frame' H:|-(70)-[UIView:0x14565840](LTR) (Names: '|':UIView:0x146506b0 )>", "<NSLayoutConstraint:0x1454ab60 H:|-(30)-[UIView:0x14565840] (Names: '|':UIView:0x146506b0 )>" ) Will attempt to recover by breaking constraint <NSLayoutConstraint:0x1454ab60 H:|-(30)-[UIView:0x14565840] (Names: '|':UIView:0x146506b0 )> 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.