iOS 8.3版本“的UIView封装，布局宽度”的自定义键盘 [英] iOS 8.3 'UIView-Encapsulated-Layout-Width' in Custom Keyboard

问题描述

我实现了自定义键盘。它工作正常，它运行的iOS 8.2设备上。

然而，当我与iOS 8.3的设备上运行相同的code我得到以下警告和键盘的高度设置不正确：

 大概在以下列表中的约束条件中的至少一个是一个你不想要的。试试这个：（1）看一下每个约束和揣摩，你不要指望; （2）找到code，它增加了不必要的约束或限制并修复它。 （注：如果你看到你不明白NSAutoresizingMaskLayoutConstraints，请参阅文档UIView的财产translatesAutoresizingMaskIntoConstraints）
（
    ＆LT; NSAutoresizingMaskLayoutConstraint：0x15dd1da0 H =  - ＆安培;  -  V =  - ＆安培;  - 键盘：0x15db2b00.width ==的UIView：0x15da7b90.width  -  320 GT;，
    ＆所述; NSLayoutConstraint：0x15dd2520'的UIView包封-布局宽度1 H：[UIView的：0x15da7b90（0）]＆gt;中
）将试图打破约束恢复
＆LT; NSLayoutConstraint：0x15dd2520'的UIView封装，布局宽度H：[UIView的：0x15da7b90（0）] GT;
 

我不知道这意味着什么。请帮我找到答案。

解决方案

 大概在以下列表中的约束条件中的至少一个是一个你不想要的。试试这个：（1）看一下每个约束和揣摩，你不要指望; （2）找到code，它增加了不必要的约束或限制并修复它。 （注：如果你看到你不明白NSAutoresizingMaskLayoutConstraints，请参阅文档UIView的财产translatesAutoresizingMaskIntoConstraints）
（
    ＆LT; NSAutoresizingMaskLayoutConstraint：0x15dd1da0 H =  - ＆安培;  -  V =  - ＆安培;  - 键盘：0x15db2b00.width ==的UIView：0x15da7b90.width  -  320 GT;，
    ＆所述; NSLayoutConstraint：0x15dd2520'的UIView包封-布局宽度1 H：[UIView的：0x15da7b90（0）]＆gt;中
）将试图打破约束恢复
＆LT; NSLayoutConstraint：0x15dd2520'的UIView封装，布局宽度H：[UIView的：0x15da7b90（0）] GT;
 

这是告诉你，它不能一次满足所有约束。

您有一个约束＆LT; NSAutoresizingMaskLayoutConstraint：0x15dd1da0 H = - ＆安培; - V = - ＆安培; - 键盘：0x15db2b00.width ==的UIView：0x15da7b90.width - 320 GT; ，这决定了键盘的宽度等于的UIView 在 0x15da7b90 减去320的宽度（检查调试这是其中之一，我通常看GUI调试器，如果我知道是什么的UIView 取值可能导致该问题）。

其他冲突的约束是＆LT; NSLayoutConstraint：0x15dd2520'的UIView封装，布局宽度H：[UIView的：0x15da7b90（0）] GT; ，这就决定在的UIView 在 0x15da7b90 宽度（相同）为0，不能同时满足这一个，一以上，因此它打破了这一个。

我看你的第一个约束是类型 NSAutoresizingMaskLayoutConstraint ，所以你可以尝试设置 setTranslatesAutoresizingMaskIntoConstraints 来的一个假你的看法，这可能会删除第一个约束，从而消除冲突。

其他的帮助文档：

• 视觉格式语言，即X code中的日志中使用的格式，有助于了解这种语言，以便更好地进行调试。


• 查看调试以x code ，有助于确定哪些意见在哪里，在什么地址。

I have implemented a custom keyboard. It works fine on a device which runs iOS 8.2.

However, when I run the same code on a device with iOS 8.3 I get the following warnings and the height of the keyboard is not set properly:

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:0x15dd1da0 h=-&- v=-&- Keyboard:0x15db2b00.width == UIView:0x15da7b90.width - 320>",
    "<NSLayoutConstraint:0x15dd2520 'UIView-Encapsulated-Layout-Width' H:[UIView:0x15da7b90(0)]>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x15dd2520 'UIView-Encapsulated-Layout-Width' H:[UIView:0x15da7b90(0)]>

I have no idea what this means. Please help me figure it out.

解决方案

    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:0x15dd1da0 h=-&- v=-&- Keyboard:0x15db2b00.width == UIView:0x15da7b90.width - 320>",
    "<NSLayoutConstraint:0x15dd2520 'UIView-Encapsulated-Layout-Width' H:[UIView:0x15da7b90(0)]>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x15dd2520 'UIView-Encapsulated-Layout-Width' H:[UIView:0x15da7b90(0)]>

It is telling you that it can't satisfy all constraints at once.

You have a constraint <NSAutoresizingMaskLayoutConstraint:0x15dd1da0 h=-&- v=-&- Keyboard:0x15db2b00.width == UIView:0x15da7b90.width - 320>, which dictates the width of the keyboard equals the width of the UIView at 0x15da7b90 minus 320 (check the debugger which one this is, I usually look at the GUI debugger if I know what UIViews might be causing the problem).

The other conflicting constraint is <NSLayoutConstraint:0x15dd2520 'UIView-Encapsulated-Layout-Width' H:[UIView:0x15da7b90(0)]>, which dictates the width of the UIView at 0x15da7b90 (same one) to be 0. It cannot satisfy both this one and the one above, so it breaks this one.

I see that your first constraint is one of the type NSAutoresizingMaskLayoutConstraint, so you can try to set setTranslatesAutoresizingMaskIntoConstraints to false on your view, which will probably remove the first constraint, thus removing the conflict.

Other helpful documentation:

• Visual Format Language, the format that Xcode uses in the log, helps to know this language to debug them better.
• View Debugging in Xcode, helps to identify which views are where and at what address.

这篇关于iOS 8.3版本“的UIView封装，布局宽度”的自定义键盘的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！