如何为不同的屏幕尺寸设置不同的自动版式约束 [英] How to set up different Auto Layout constraints for different screen sizes

问题描述

我有一个带有静态单元格的tableView.该单元格包含一个ImageView，将其完全填充.我上面还有另一个较小的ImageViews.我将这个ImageViews置于约束中.我有一个关于调整约束大小的问题. 如何在不编程if/else循环的情况下为不同的设备大小设置不同的约束常数.有没有办法在情节提要中进行设置?我对父版式有一个主要的约束，例如恒定值为10.这对于iPhone 5屏幕是可以的，但是在iPhone 6/6 plus屏幕上，它应该大于10.

I have a tableView with static cells. The cell contains an ImageView which fills it completely. And I have another smaller ImageViews atop. I position this ImageViews with constraints. I have a question about resizing the constraints. How can I set different constraint constants for different devices sizes without programming if/else loops. Is there a way to set it in the storyboard? I have a leading constraint to parent layout for example with an constant value of 10. This is okay for the iPhone 5 screen, but on an iPhone 6/ 6 plus screen it should be higher than 10.

iPhone5自动版式

iPhone6自动版式

推荐答案

无需编写任何代码！

一旦我的初级开发人员问了我一个相同的问题，那就是当时我该如何区分iPhoneSE和iPhone6的某些约束，只有一个解决方案正在编写类似的东西

Without writing a single line of Code!

Once my junior developer asked me the same question that how can I differentiate between iPhoneSE and iPhone6 for some constraint at that time there was only one solution that was writing some thing like

if device == iPhoneSE { 
   constant = 44 
} else if device == iPhone6 {
   constant = 52
}

为解决此问题，我创建了一个库 Layout Helper ，现在您可以为每个库更新约束设备，而无需编写任何代码.

To overcome this issue I created a library Layout Helper so now you can update constraint for each device without writing a single line of code.

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