Noob enquiry regarding UIPickerView - iphone

Question

Right guys, I am fairly new to xcode and the iPhone SDK, but have kept on it over the last few weeks, getting there slowly, however I have just started building an app which uses the UIPickerView, so far I have a picker with 7 values. When a value is selected it is displayed within a label...Pretty simple stuff. But so far I cannot find any tutorials which cover how to load a standard UIImageView to which I can then exchange images depending on what is selected within the picker.(Mug shots of each person) Do you guys now anywhere I could find some help on this or point me in the right direction.....
So far my code is pretty standard:
in the .h file I have:-
#import <UIKit/UIKit.h>
#interface Team : UIViewController
{
IBOutlet UIPickerView *pickerView;
NSMutableArray *list;
IBOutlet UILabel *pickerLabel;
IBOutlet UIImage *pickerImage;
}
#end
and in the .m file I have:-
#import "Team.h"
#implementation Team
-(NSInteger) numberOfComponentsInPickerView:(UIPickerView *)thePickerView{
return 1;
}
-(NSInteger) pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component{
return [list count];
}
-(NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
return [list objectAtIndex:row];
}
-(void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
NSString *string = [NSString stringWithFormat:#"You Selected %#", [list objectAtIndex:row]];
pickerLabel.text = string;
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (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
- (void)viewDidLoad
{
[super viewDidLoad];
list = [[NSMutableArray alloc]init];
[list addObject:#"Doug Filder"];
[list addObject:#"Chris Savage"];
[list addObject:#"Nick Bennett"];
[list addObject:#"Aimee Vacher"];
[list addObject:#"Brandy Cardwell"];
[list addObject:#"Jon West"];
[list addObject:#"Dan Parsons"];
// Do any additional setup after loading the view from its nib.
}
- (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

Answer 1

You can either use an NSDictionary to store the name of the person and associate a file name,
for example:
First of all, change that UIImage to an UIImageView:
#interface Team : UIViewController
{
IBOutlet UIPickerView *pickerView;
NSMutableArray *list;
NSMutableDictionary *filenames;
IBOutlet UILabel *pickerLabel;
IBOutlet UIImageView *pickerImage;
}
#end
Then, here's how you load an image into it:
- (void)viewDidLoad {
list = [[NSMutableArray alloc]init];
[list addObject:#"Doug Filder"];
[list addObject:#"Chris Savage"];
[list addObject:#"Nick Bennett"];
[list addObject:#"Aimee Vacher"];
[list addObject:#"Brandy Cardwell"];
[list addObject:#"Jon West"];
[list addObject:#"Dan Parsons"];
filenames = [[NSMutableDictionary alloc] init];
[filenames setObject:#"DougFilder.jpg" forKey:#"Doug Filder"];
[filenames setObject:#"ChrisSavage.jpg" forKey:#"Chris Savage"];
[filenames setObject:#"NickBennett.jpg" forKey:#"Nick Bennett"];
[filenames setObject:#"AimeeVacher.jpg" forKey:#"Aimee Vacher"];
[filenames setObject:#"BrandyCardwell.jpg" forKey:#"Brandy Cardwell"];
[filenames setObject:#"JonWest.jpg" forKey:#"Jon West"];
[filenames setObject:#"DanParsons.jpg" forKey:#"Dan Parsons"];
}
-(NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
return [list objectAtIndex:row];
}
-(void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
NSString *string = [NSString stringWithFormat:#"You Selected %#", [list objectAtIndex:row]];
pickerLabel.text = string;
NSString *filename = [filenames objectForKey:[list objectAtIndex:row]];
[pickerImage setImage:[UIImage imageNamed:filename]];
}
Hope this helps! :)

Answer 2

just replace this
-(void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
NSString *string = [NSString stringWithFormat:#"You Selected %#", [list objectAtIndex:row]];
pickerLabel.text = string;
pickerImage = [UIImage imageNamed:string];
}