意见不将它们添加到NSStackView后正确显示编程

Question

所以，我想补充一些意见（的NSTextField在这个例子中）到NSStackView：

我添加NSStackView例如到XIB文件，链接它出口as widgets into Document。在...... didLoadNib我这样做：

NSTextField *tf = [[NSTextField alloc] init]; 
tf.stringValue = @"124"; 
[tf setFrameSize:NSMakeSize(100, 20)]; 
[widgets addView:tf inGravity:NSStackViewGravityLeading]; 
NSLog(@"%f - %d", NSHeight(tf.frame), [tf hasAmbiguousLayout]); 

NSTextField *tf2 = [[NSTextField alloc] init]; 
tf2.stringValue = @"123"; 
[tf2 setFrameSize:NSMakeSize(100, 20)]; 
[widgets addView:tf2 inGravity:NSStackViewGravityLeading]; 
NSLog(@"%f - %d", NSHeight(tf2.frame), [tf2 hasAmbiguousLayout]); 

的TextField放入StackView，但它们放置到同一位置，即第二首完全重叠。我仍然可以通过[space + tab]首先选择。

这里是控制台输出：

2015-06-13 17:11:00.736 celty-test[62306:9217679] 20.000000 - 1 
2015-06-13 17:11:00.739 celty-test[62306:9217679] Unable to simultaneously satisfy constraints: 
(
    "<NSLayoutConstraint:0x608000084bf0 V:[NSStackViewSpacer:0x6080001834d0(>=8)]>", 
    "<NSLayoutConstraint:0x608000084f10 V:[NSTextField:0x608000183330]-(0)-[NSStackViewSpacer:0x6080001834d0]>", 
    "<NSLayoutConstraint:0x608000085460 V:[NSStackViewSpacer:0x6080001834d0]-(0)-[NSTextField:0x608000183400]>", 
    "<NSAutoresizingMaskLayoutConstraint:0x608000084970 h=--& v=--& V:[NSTextField:0x608000183330]-(0)-| (Names: '|':NSStackViewContainer:0x6000001a0700)>", 
    "<NSAutoresizingMaskLayoutConstraint:0x608000084d30 h=--& v=--& V:[NSTextField:0x608000183400]-(0)-| (Names: '|':NSStackViewContainer:0x6000001a0700)>", 
    "<NSAutoresizingMaskLayoutConstraint:0x608000084d80 h=--& v=--& V:[NSTextField:0x608000183400(20)]>" 
) 

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x608000084bf0 V:[NSStackViewSpacer:0x6080001834d0(>=8)]> 

Set the NSUserDefault NSConstraintBasedLayoutVisualizeMutuallyExclusiveConstraints to YES to have -[NSWindow visualizeConstraints:] automatically called when this happens. And/or, break on objc_exception_throw to catch this in the debugger. 
2015-06-13 17:11:00.802 celty-test[62306:9217679] Unable to simultaneously satisfy constraints: 
(
    "<NSLayoutConstraint:0x608000084f10 V:[NSTextField:0x608000183330]-(0)-[NSStackViewSpacer:0x6080001834d0]>", 
    "<NSLayoutConstraint:0x608000085460 V:[NSStackViewSpacer:0x6080001834d0]-(0)-[NSTextField:0x608000183400]>", 
    "<NSAutoresizingMaskLayoutConstraint:0x608000084970 h=--& v=--& V:[NSTextField:0x608000183330]-(0)-| (Names: '|':NSStackViewContainer:0x6000001a0700)>", 
    "<NSAutoresizingMaskLayoutConstraint:0x608000084d30 h=--& v=--& V:[NSTextField:0x608000183400]-(0)-| (Names: '|':NSStackViewContainer:0x6000001a0700)>", 
    "<NSAutoresizingMaskLayoutConstraint:0x608000084d80 h=--& v=--& V:[NSTextField:0x608000183400(20)]>" 
) 

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x608000085460 V:[NSStackViewSpacer:0x6080001834d0]-(0)-[NSTextField:0x608000183400]> 

Set the NSUserDefault NSConstraintBasedLayoutVisualizeMutuallyExclusiveConstraints to YES to have -[NSWindow visualizeConstraints:] automatically called when this happens. And/or, break on objc_exception_throw to catch this in the debugger. 
2015-06-13 17:11:00.814 celty-test[62306:9217679] 20.000000 - 0 

XIB和结果截图：

有没有加入到StackView约束。 StackView应该是垂直的。将有大量的文本框被添加到stackview中。

Answer 1

您需要将文本字段的translatesAutoresizingMaskIntoConstraints属性设置为false。

通常情况下，如果视图被其他代码放置，则不应该这样做。也就是说，您会希望堆栈视图决定该属性是否应该打开或关闭，因为它控制着将其放入视图层次结构中。然而，从这个到10.10，有一个NSStackView的错误，所以你必须自己关闭它。

线索是一套不可满足的限制包括类型NSAutoresizingMaskLayoutConstraint。