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copied!<p>Following example for the UIPickerview controller</p> <p>.m files here</p> <pre><code>#import "SingleComponentPickerViewController.h" @implementation SingleComponentPickerViewController @synthesize singlePicker; @synthesize pickerData; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) { // Custom initialization } return self; } -(IBAction)buttonPressed1 { NSInteger row = [singlePicker selectedRowInComponent:0]; NSString *selected = [pickerData objectAtIndex:row]; NSString *title = [[NSString alloc] initWithFormat: @"you selected %@!", selected]; UIAlertView *alert = [[UIAlertView alloc] initWithTitle:title message : @"Thank you for choosing." delegate:nil cancelButtonTitle :@"Welcome" otherButtonTitles :nil]; [alert show]; [alert release]; [title release]; } - (void)viewDidLoad { NSArray *array = [[NSArray alloc] initWithObjects:@"iPhone",@"iPad",@"iPod",@"iMac",@"Mac", @"iBook",@"Safari",nil]; self.pickerData = array; [array release]; [super viewDidLoad]; } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { return (interfaceOrientation == UIInterfaceOrientationPortrait); } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } - (void)viewDidUnload { } - (void)dealloc { [singlePicker release]; [pickerData release]; [super dealloc]; } -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView { return 1; } -(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component { return [pickerData count]; } -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component { return[pickerData objectAtIndex:row]; } @end </code></pre> <p>and .h file here</p> <pre><code>#import <UIKit/UIKit.h> @interface SingleComponentPickerViewController : UIViewController { IBOutlet UIPickerView *singlePicker; NSArray *pickerData; } @property(nonatomic , retain) UIPickerView *singlePicker; @property(nonatomic , retain) NSArray *pickerData; -(IBAction)buttonPressed1; @end </code></pre> <p>happy coding @samuel</p>

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