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Picking a choice from a group or set of values using UISegmentedControl

/ Published in: Objective C
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The UISegmentedControl consists of a horizontal control divided into segments. Segmented controls are useful for allowing users to pick from a group or set of values.

Each segment functions as its own button. By default, selecting a segment will deselect the others in the control (much as a radio button does in HTML). You can alter this behavior by setting the "momentary" property.

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  1. - (void)segmentClick:(id)sender
  2. {
  3. 	NSLog(@"you selected segment %d",[sender selectedSegmentIndex]);
  4. }
  5.  
  6. - (void)viewDidLoad {
  7.  
  8.     [super viewDidLoad];
  9.  
  10. 	NSArray *arrSegments = [[NSArray alloc] initWithObjects:
  11. 							[NSString stringWithString:@"0"],
  12. 							[NSString stringWithString:@"1"],
  13. 							[NSString stringWithString:@"2"],nil];
  14.  
  15. 	UISegmentedControl *mySegment = [[UISegmentedControl alloc] initWithItems:arrSegments];
  16.  
  17. 	CGRect segmentRect = CGRectMake(10,50,300,40);
  18. 	[mySegment setFrame:segmentRect];
  19.  
  20. 	[mySegment addTarget:self action:@selector(segmentClick:) forControlEvents:UIControlEventValueChanged];
  21.  
  22. 	[mySegment setSegmentedControlStyle:UISegmentedControlStyleBar];
  23. 	[mySegment setTintColor:[UIColor darkGrayColor]];
  24. 	// mySegment.momentary = YES;    // allow multiple multiple selection
  25.  
  26. 	//select first item
  27. 	[mySegment setSelectedSegmentIndex:0];
  28.  
  29. 	//change a segment size
  30. 	[mySegment setWidth:120.0 forSegmentAtIndex:1];
  31.  
  32. 	//add a new segment
  33. 	[mySegment insertSegmentWithTitle:@"new" atIndex:2 animated:YES];
  34.  
  35. 	//add segment to main view
  36. 	[self.view addSubview:mySegment];	
  37.  
  38. }

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