如何在iOS中设置视图的最大宽度?

问题描述

我的应用程序有一个基本的登录屏幕，一个外框以及其中的一些文本字段和按钮.我将框设置为填满整个屏幕.但是，在某些设备上，此框太大.如何设置视图的最大宽度和高度?

My app have a basic login screen, an outer box and in it, some text fields and buttons. I set the box to fill the screen. However, on some devices this box will be too big. How do I set maximum width and height to a view?

推荐答案

您可以使用自动布局约束，以使框适应屏幕尺寸，但不超过给定的宽度和高度.为此，在宽度和高度上设置小于或等于"约束.

You can use auto-layout constraints so that the box adapts to the screen size, but does not exceed a given width and height. To do this, set a "less than or equal to" constraint on the width and height.

1. 在框中添加顶部，底部，前导，尾随，宽度和高度约束.
2. 将顶部，底部，前导和尾随约束的优先级设置为高(750).
3. 将宽度和高度约束的关系设置为小于或等于(≤).默认值为等于.
4. 将宽度和高度约束的优先级设置为必需(1000).
5. 将宽度和高度约束的常数设置为您要使框成为的最大大小.

1. Add top, bottom, leading, trailing, width and height constraints to the box.
2. Set the priority of the top, bottom, leading and trailing constraints to High (750).
3. Set the relation for the width and height constraints to Less Than or Equal (≤). The default value is Equal.
4. Set the priority of the width and height constraints to Required (1000).
5. Set the constant of the width and height constraints to the maximum size you want the box to be.

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