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Create UIButton Programmatically
Posted on: May 3, 2010 at 12:00 AM
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This is a simple programming approach to create and add a button on UIView dynamically. To create a button programmatically just follow the given steps...

Create UIButton Programmatically

In this example we'll discuss about how to create a UIButton in code.

This is a simple programming approach to create and add a button on UIView dynamically. To create a button programmatically just follow the given steps...

1. Create a UIButton with the type that your application req. like you can create a simple RoundedRect button or a custom button if need to set any image in the background.

Code

UIButton *myButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];

Set the button frame as given below to set the button size and position in the parent view.

myButton.frame = CGRectMake(80, 50, 150, 40);

Set the title of the button

[myButton setTitle:@"Say, Hi!" forState:UIControlStateNormal];

Now, add targets and action on the button. "buttonClicked" is the name of the button action that we need to declare in both .h and .m ViewControllers.

[myButton addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];

So far, we have successfully create a button but to add this button on view we need to write the given line..

[self.view addSubview:myButton];

Button Action

- (IBAction)buttonClicked:(id)sender
{
NSLog(@"Hi!");

}

You can write the code inside the ViewDidLoad method and just test the application it must look alike the given image.

You can also create a button in Interface builder but few programmers also use the programatic approach. Both the ways are ok to me .. but i prefer Interface builder to reduce the coding part. But again it's a personal choice ..you can use any method and it'll work fine.

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Posted on: May 3, 2010

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