Xcode 7.3如何将现有的iPhone应用程序转换为通用应用程序，以便在iOS中使用iPad

Question

Previously, it is only an iPhone application. Now I want it run in iPad as well. So I chose the target as universal, but when I run it in iPad simulator. It only remains the color of the view without any labels and textfields.

How can I make the application run properly both in iPad and iPhone?

Answer 1

Step 1 : First You need to change your size Class to wAny x hAny . Now when you open your controller all your controls will be visible as disabled, Because you change your size class and constraints defined are not compatible with it.

Step 2 : Now select all your controls in your controller then goto bottom of Attribute Inspector. You will see checkbox for C x Any . uncheck it.

Step3 : Now you have to add new Constraint for Any x Any . As you have already changed your size class to **Any x Any ** just check above check box which will by default activate constrains for current size class.

Step 4 : Then you need to add missing constraints which ever necessary for your controls.