iOS的自动布局：动态调整控制 [英] iOS Autolayout : Dynamically adjust controls

问题描述

我在练自动布局，我已经达成了一些问题，我的布局是像

I am practicing autolayout, I have struck on some issue, My layout is like

== Username TextField ==
== Password Textfield ==
==Login Button ==

但是，当用户输入错误的用户名或密码，应改为

But when user enters wrong username or password it should be changed to

== Username TextField ==
== Password Textfield ==
== Verification Textfield == 
==Login Button ==

我知道如何通过设置帧来实现它，但我想通过自动布局和约束去做
所以，我需要你的帮助做到这一点。这将是巨大的，如果我可以用故事板做它无需编写code单线

I know how to achieve it by setting frames but I want to do it by autolayout and constrains So I need your help to do it. And it would be great if I can do it using storyboard without writing single line of code

在此先感谢

推荐答案

的愿望布局很简单，可能得到与自动布局的帮助下完成的，但你的问题没有具体说明任何问题，但总的来说，所以我会建议采取看看这里一个伟大的教程有关自动布局 HTTP： //www.raywenderlich.com/50317/beginning-auto-layout-tutorial-in-ios-7-part-1 并试图理解基本概念，如果您有任何具体麻烦那么欢迎你

The desire layout is simple and possible to get done with the help of autolayout but you question is not specific about any problem but in general so i would suggest take a look here a great tutorials about autolayout http://www.raywenderlich.com/50317/beginning-auto-layout-tutorial-in-ios-7-part-1 and try to understand the basic concept, and if you have any specific trouble then you are welcome

这篇关于iOS的自动布局：动态调整控制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！