Launch Image Picker from button not working - ios

Question

I am using the standard tab bar application as a basis for a test app.
I am also trying to use the ELCAlbumPickerController class found at github.
The button to launch the photo picker and the uiscrollview are located in the Secondview.xib
The following is the code in the SecondViewController.h
#import <UIKit/UIKit.h>
#import "ELCImagePickerController.h"
#interface SecondViewController : UIViewController <ELCImagePickerControllerDelegate,UINavigationControllerDelegate, UIScrollViewDelegate>{
UIWindow *window;
SecondViewController *viewController;
IBOutlet UIScrollView *scrollview;
}
#property (nonatomic,retain) IBOutlet UIWindow *window;
#property (nonatomic,retain) IBOutlet SecondViewController *viewController;
#property (nonatomic,retain) IBOutlet UIScrollView *scrollview;
-(IBAction)launchController;
#end
And the following is in SecondViewController.m
#import "myappAppDelegate.h"
#import "SecondViewController.h"
#import "ELCImagePickerController.h"
#import "ELCAlbumPickerController.h"
#implementation SecondViewController
#synthesize window;
#synthesize viewController;
#synthesize scrollview;
/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.*/
- (void)viewDidLoad
{
//[self launchController:self];
[super viewDidLoad];
}
- (BOOL)shouldAutorotateToInterfaceOrientation: (UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
-(IBAction)launchController {
ELCAlbumPickerController *albumController = [[ELCAlbumPickerController alloc] initWithNibName:#"ELCAlbumPickerController" bundle:[NSBundle mainBundle]];
ELCImagePickerController *elcPicker = [[ELCImagePickerController alloc] initWithRootViewController:albumController];
[albumController setParent:elcPicker];
[elcPicker setDelegate:self];
//myappAppDelegate *app = (myappAppDelegate *)[[UIApplication sharedApplication] delegate];
SecondViewController *app = (SecondViewController *)[[UIApplication sharedApplication] delegate];
[app.viewController presentModalViewController:elcPicker animated:YES];
[elcPicker release];
[albumController release];
}
#pragma mark ELCImagePickerControllerDelegate Methods
- (void)elcImagePickerController:(ELCImagePickerController *)picker didFinishPickingMediaWithInfo:(NSArray *)info {
[self dismissModalViewControllerAnimated:YES];
for (UIView *v in [scrollview subviews]) {
[v removeFromSuperview];
}
CGRect workingFrame = scrollview.frame;
workingFrame.origin.x = 0;
for(NSDictionary *dict in info) {
UIImageView *imageview = [[UIImageView alloc] initWithImage:[dict objectForKey:UIImagePickerControllerOriginalImage]];
[imageview setContentMode:UIViewContentModeScaleAspectFit];
imageview.frame = workingFrame;
[scrollview addSubview:imageview];
[imageview release];
workingFrame.origin.x = workingFrame.origin.x + workingFrame.size.width;
}
[scrollview setPagingEnabled:YES];
[scrollview setContentSize:CGSizeMake(workingFrame.origin.x, workingFrame.size.height)];
}
- (void)elcImagePickerControllerDidCancel:(ELCImagePickerController *)picker {
[self dismissModalViewControllerAnimated:YES];
}
- (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.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc
{
[super dealloc];
}
#end
When you click the button you get a message "deallocing ELCImagePickerController" so it is calling the ELCImagePickerController class but it just does not show the image picker. Any ideas would be appreciated.
Thanks

Answer 1

In the launchController() method, you were casting an appDelegate into a viewController, which is logically wrong. You need to use an actual viewController to presentModalViewController. Try:
[self presentModalViewController:elcPicker animated:YES];