"reveal" an image on iphone

Question

Hi,

i would like to reveal an image on an UIView:

1. showing an empty screen
2. slowly reveal the image from to to bottom

Any ideas ?

Answer 1

Something like this:

UIImageView *img = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"someImage.png"]];

CGRect endFrame = img.frame;
CGRect startFrame = img.frame;

startFrame.size.height = 0;
img.frame = startFrame;

[view addSubview:img];

[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration: 0.5];

img.frame = endFrame;

[UIView commitAnimations];