意見不將它們添加到NSStackView後正確顯示編程

Question

所以，我想補充一些意見（的NSTextField在這個例子中）到NSStackView：

我添加NSStackView例如到XIB文件，鏈接它出口as widgets into Document。在...... didLoadNib我這樣做：

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，但它們放置到同一位置，即第二首完全重疊。我仍然可以通過[space + tab]首先選擇。

這裏是控制檯輸出：

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和結果截圖：

有沒有加入到StackView約束。 StackView應該是垂直的。將有大量的文本框被添加到stackview中。

Answer 1

您需要將文本字段的translatesAutoresizingMaskIntoConstraints屬性設置爲false。

通常情況下，如果視圖被其他代碼放置，則不應該這樣做。也就是說，您會希望堆棧視圖決定該屬性是否應該打開或關閉，因爲它控制着將其放入視圖層次結構中。然而，從這個到10.10，有一個NSStackView的錯誤，所以你必須自己關閉它。

線索是一套不可滿足的限制包括類型NSAutoresizingMaskLayoutConstraint。