自动布局调整基于文本按钮和文本框都填充可用空间 [英] Autolayout resize button based on text and have textfield fill available space

问题描述

我使用的自动布局在iOS应用程序的工作，

I am working on an ios application using autolayout,

我有一个的UITextField和一个UIButton旁边水平。

I have a UITextField and a UIButton next to it horizontally.

该文本的UIButton是动态变化的。它可以是非常短（3个字母）或很长（15个字母）

The UIButton text is changed dynamically. It can be very short (3 letters) or very long (15 letters)

我需要添加约束，以实现以下目标：

I need to add constraint to achieve the following:

1），当我改变的UIButton的文字，我需要的按钮来调整大小以适应新的文本

1) when I change the UIbutton text, I need the button to resize to fit the new text

2）的UITextField应该调整采取的按钮上的文字变化后留下的可用空间

2) the UITextField should resize to take the available space left after the button text change

我试着做以下（如图片所示）：

I tried to do the following (like shown in the picture):

• 增加了对的UITextView领先制约了上海华20

• Added a leading constraint for the UITextView to the superview 20

增加了对UIButton的尾部约束到上海华20

Added a trailing constraint for the UIButton to the superview 20

增加了一个固定的他们之间遥远的10

Added a fixed distant between them 10

但现在我卡在如何使UIButton的与文本和文本字段取可用大小调整。

but now I'm stuck on how to make the UIButton resize with the text and the textfield to take the available size.

任何帮助是pciated AP $ P $

Any help is appreciated

感谢您

推荐答案

尝试这些自动布局约束：

Try these autolayout constraints:

1. 的UITextField 对象的宽度约束应该是小于或等于关于


2. 的UIButton 对象的宽度约束应该是大于或等于关于


3. 的UITextField 对象的水平内容拥抱优先应该是249（按我的约束设置上面显示）

1. UITextField object's width constraint should be a Less Than or Equal relation
2. UIButton object's width constraint should be a Greater Than or Equal relation
3. UITextField object's horizontal Content Hugging Priority should be 249 (as per my constraint settings shown above)

和相关code为：

[buttonObject setTitle:@"Button title is too... zzz" forState:UIControlStateNormal];
[buttonObject sizeToFit];

---

^{...或东西沿着这些路线}

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