#import <QuartzCore/QuartzCore.h>

- (void)viewDidLoad {
	[super viewDidLoad];
	UIImageView *imgView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"edp.png"]];
	//On ajoute à la vue le layer avec notre image
	[[[self view] layer] addSublayer:[imgView layer]];
	[imgView release];
}

- (IBAction) animate
{
	//on configure l animation
	CATransition *applicationLoadViewIn = [CATransition animation];
	[applicationLoadViewIn setDuration:1];
	[applicationLoadViewIn setType:kCATransitionFade];
	[applicationLoadViewIn setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn]];
	//on ajoute l animation au layer
	[[self.view layer] addAnimation:applicationLoadViewIn forKey:kCATransitionFade];
	//On configure notre nouvel image
	UIImageView *imgView2 = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"edpBlack.png"]];
	//on rajoute un teste pour que le fondu fonctionne dans les 2 sens
	if(self.view.layer.sublayers.count<=2)
		//premier cas on ajoute notre image
		[[[self view] layer] addSublayer:[imgView2 layer]];
	else {
		//deuxieme cas on supprime notre image
		[[self.view.layer.sublayers lastObject] removeFromSuperlayer];
	}
	[imgView2 release];
}