How to Change Background Color in iPhone and iPad

Introduction

In this article we change the background color of a UI Window of iPhone via coding in the appdelegate.m class. To better understand use the following procedure.

Step 1

Open XCode by double-clicking on it.

Step 2

Create a New XCode Project by clicking on it.

Step 3

Now select Empty Application and click on Next.

Step 4

Now give your Product Name. Here I give Background and Click on Next.

Step 5

Select the location you want to save your project to and click on Create.

Step 6

Now you will see only two Objective-C Classes which were automatically generated by XCode. In the Empty Application never generate a UIViewController class; if you want, you can create it manually.

1.Appdelegate.h
2.AppDelegate.m

Here we write code....

Appdelegate.h

Appdelegate.m

Here is the code where we change the color:

Step 7

Now select in which Platform you want to see the output.

Output

Output 1 in iPhone:

Output 2 in iPhone:

Output 1 in iPad:

Output 2 in iPad: