Picking Images with the iPhone SDK UIImagePickerController

// from PickImageAppDelegate.h
@interface PickImageAppDelegate :
       NSObject <UIApplicationDelegate,
           UIImagePickerControllerDelegate>
{
    UIWindow* window;
    UIImagePickerController* imagePickerController;
    UIImageView* imageView;
}
 
@property (nonatomic, retain) UIWindow *window;
 
- (void)applicationDidFinishLaunching:(UIApplication *)application;
- (void)imagePickerController:(UIImagePickerController *)picker
        didFinishPickingImage:(UIImage *)image
        editingInfo:(NSDictionary *)editingInfo;
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker;
@end

// from PickImageAppDelegate.m
- (void)applicationDidFinishLaunching:(UIApplication *)application
{
// Create window
    self.window = [[[UIWindow alloc]
        initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
 
    // Set up the image picker controller and add it to the view
    imagePickerController = [[UIImagePickerController alloc] init];
    imagePickerController.delegate = self;
    imagePickerController.sourceType = 
        UIImagePickerControllerSourceTypePhotoLibrary;
    [window addSubview:imagePickerController.view];
 
    // Set up the image view and add it to the view but make it hidden
    imageView = [[UIImageView alloc] initWithFrame:[window bounds]];
    imageView.hidden = YES;
    [window addSubview:imageView];
 
    [window makeKeyAndVisible];
}

// from PickImageAppDelegate.m
- (void)imagePickerController:(UIImagePickerController *)picker 
    didFinishPickingImage:(UIImage *)image
    editingInfo:(NSDictionary *)editingInfo
{
// Dismiss the image selection, hide the picker and
//show the image view with the picked image
[picker dismissModalViewControllerAnimated:YES];
    imagePickerController.view.hidden = YES;
    imageView.image = image;
    imageView.hidden = NO;
    [window bringSubviewToFront:imageView];
}

// from PickImageAppDelegate.m
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
// Dismiss the image selection and close the program
[picker dismissModalViewControllerAnimated:YES];
    exit(0);
}