Programmatically Segmented Control in iPhone

In this application we will see how to implement Segmented Control programmatically in iPhone. So let see how it will
worked.

Step 1: Open the Xcode, Create a new project using View Base application. Give the application
“ProgrammaticallySegmentedControl”.

Step 2: Xcode automatically creates the directory structure and adds essential frameworks to it. You can explore the
directory structure to check out the content of the directory.

Step 3: Expand classes and notice Interface Builder created the FirstViewController and SecondViewController class
for you. Expand Resources and notice the template generated a separate nib,
ProgrammaticallySegmentedControlViewController.xib for the ProgrammaticallySegmentedControl application.

Step 4: Open the ProgrammaticallySegmentedControlViewController.m file and make the following changes:

#import "programmaticallySegmentedControlViewController.h"
#define HeightSegmControl 40.0
#define TextHeight 30.0
#define LeftMargin 30.0
#define RightMargin 30.0
#define TweenMargin 30.0
@implementation programmaticallySegmentedControlViewController
- ( void )SegmentControl
{
NSArray *text = [ NSArray arrayWithObjects : @ " Segmented", @ "Control", @ "iPhone", nil ];
CGFloat yPlacement = (TweenMargin * 3.0 ) + HeightSegmControl;
CGRect frame =CGRectMake (LeftMargin, yPlacement, self.view.bounds.size.width - (RightMargin *
3.0 ),TextHeight );
UISegmentedControl *control = [ [UISegmentedControl alloc ] initWithItems : [ NSArray arrayWithObjects : nil ] ];
control = [ [UISegmentedControl alloc ] initWithItems :text ];
control.frame = frame;
//control.selectedSegmentIndex = 0;
[self.view addSubview :control ];
[control release ];
// label
//yPlacement += (mTweenMargin * 3.0) + mSegmentedControlHeight;
control = [ [UISegmentedControl alloc ] initWithItems :text ];
frame = CGRectMake (LeftMargin,yPlacement,self.view.bounds.size.width - (RightMargin *
2.0 ),HeightSegmControl );
control.frame = frame;
control.segmentedControlStyle = UISegmentedControlStyleBar;
//control.tintColor = [UIColor colorWithRed:0.80 green:0.171 blue:0.5 alpha:1.0];
control.selectedSegmentIndex = 1;
[self.view addSubview :control ];
[control release ];
}
- ( void )dealloc
{
[super dealloc ];
}
- ( void )didReceiveMemoryWarning
{
// Releases the view if it doesn’t have a superview.
[super didReceiveMemoryWarning ];
// Release any cached data, images, etc that aren’t in use.
}
#pragma mark – View lifecycle
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- ( void )viewDidLoad
{
[super viewDidLoad ];
[self SegmentControl ];
}
- ( void )segmentAction : ( id )sender
{ }
- ( void )viewDidUnload
{
[super viewDidUnload ];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- ( BOOL )shouldAutorotateToInterfaceOrientation : (UIInterfaceOrientation )interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait );
}
@end

Step 5: Now Compile and run the application on the Simulator.

You can Download SourceCode from here

Source : edumobile[dot]org