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我已经尝试了很长时间，但由于约束问题不断崩溃......

如何设置此布局使其适用于 iPhone 3Gs、4 和 5 以及 iPad？

_______TOP OF SCREEN________



Table View should attach to top of screen and with 5 pixels to the Label below
flexible in height so it works on iPhone 5 and 6


____________________________


Label with fixed distance to table View above and button below

____________________________

Button with fixed distance to Label above and fixed distance to bottom of screen

____________________________
      Bottom of screen

所以基本上所有的距离和高度都是固定的，除了桌子的高度应该填充屏幕顶部和标签之间的任何可用空间

每当我设置这样的约束时，我都会在 iOS 6.1 的 iPhone 3 上不断崩溃：

 2013-03-16 23:12:51.013 BMWhat Test[64196:907] 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) 
(
    "<NSAutoresizingMaskLayoutConstraint:0x1d1f2d70 h=-&- v=-&- UIView:0x1d1aac20.height == UITransitionView:0x1d174220.height - 20>",
    "<NSLayoutConstraint:0x1d1c03b0 V:[UILabel:0x1c58f100(21)]>",
    "<NSLayoutConstraint:0x1d1ce780 V:[UITableView:0x1cbd9000(469)]>",
    "<NSLayoutConstraint:0x1c5aff30 V:[UIButton:0x1d1d1bb0(44)]>",
    "<NSLayoutConstraint:0x1d1c0030 V:|-(0)-[UITableView:0x1cbd9000]   (Names: '|':UIView:0x1d1aac20 )>",
    "<NSLayoutConstraint:0x1d1921d0 V:[UILabel:0x1c58f100]-(1)-[UIButton:0x1d1d1bb0]>",
    "<NSAutoresizingMaskLayoutConstraint:0x1c58e4d0 h=--- v=--- V:[UIWindow:0x1d002230(480)]>",
    "<NSLayoutConstraint:0x1d1cd6c0 V:[UITableView:0x1cbd9000]-(NSSpace(8))-[UILabel:0x1c58f100]>",
    "<NSLayoutConstraint:0x1d1ca370 V:[UIButton:0x1d1d1bb0]-(5)-|   (Names: '|':UIView:0x1d1aac20 )>",
    "<NSAutoresizingMaskLayoutConstraint:0x1d172a90 h=--& v=-&- UITransitionView:0x1d174220.height == UIWindow:0x1d002230.height>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x1d1ce780 V:[UITableView:0x1cbd9000(469)]>

Break on objc_exception_throw to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.

在 Simulator iPhone Retina 4 英寸 iOS 6 上运行良好。

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2 回答 2

2

问题是您在 tableview 上指定了一个垂直约束，将其高度绑定到 469 pt。由于您希望该 tableview 的高度灵活，因此您不希望该约束。

于 2013-03-16T23:30:06.513 回答
2

NSLayoutConstraint 仅在 iOS 6 中受支持。

iPhone 3 不支持 iOS 6。3Gs 是最早支持的机型。

于 2013-03-16T22:27:47.437 回答