iPhone & iPad Application Development
This tutorial deals with how to use UISwitch in objective c for iPhone
Let the viewController class be toggleswitchViewController
Open toggleswitchViewController.xib file
Add a UISwitch and a UILabel as shown below

Now come to coding part
In toggleswitchViewController.h file
add the following code

Now come to toggleswitchViewController.m file
add the following highlighted lines of code

Save all the above work
Now come to toggleswitchViewController.xib again
Make connections as shown in figure

Now save and run the project
Output
When switch is on label shows enabled and when switch is off label shows disabled