ios - Using UIPickerView to display different images upon selection in UIImageView -

i have uipickerview filled array of tree types. have empty uiimageview below change upon selection of picker view. got label change selection cannot images change. here have far

edit edit : working! correct code below

#import "viewcontroller.h"  @interface viewcontroller ()  @end  @implementation viewcontroller  - (void)viewdidload {     [super viewdidload]; // additional setup after loading view, typically nib.     dataarray = [[nsarray alloc]initwithobjects:@"birch", @"elm", @"maple", @"oak", @"white pine",@"willow", nil];     mypicker.delegate = self;     imagearray = [[nsarray alloc]initwithobjects:@"birch_river.png",@"elm_american.png",@"maple_bigtooth.png", @"oak_bur.png", @"white_pine.png", @"oak_willow.png", nil]; }  - (void)didreceivememorywarning {     [super didreceivememorywarning];     // dispose of resources can recreated. }  -(nsinteger)numberofcomponentsinpickerview:(uipickerview *)pickerview {     return 1; }  -(nsinteger)pickerview:(uipickerview *)pickerview numberofrowsincomponent:(nsinteger)component {     return [dataarray count]; }  -(void)pickerview:(uipickerview *)pickerview didselectrow:(nsinteger)row incomponent:(nsinteger)component {     mylabel.text = [dataarray objectatindex:row];     myimage.image = [uiimage imagenamed:[imagearray objectatindex:row]]; }   -(nsstring*)pickerview:(uipickerview *)pickerview titleforrow:(nsinteger)row forcomponent:  (nsinteger)component {     return [dataarray objectatindex:row]; }   @end 

what can is, have array filled image names (ex: images_array image names).

-(void)pickerview:(uipickerview *)pickerview didselectrow:(nsinteger)row incomponent:   (nsinteger)component {     mylabel.text = [dataarray objectatindex:row];     your_img_view = [[uiimageview alloc] initwithimage:[uiimage imagenamed:[images_array objectatindex.row]]]; }