How could I copy the slide down effect with the tail on the springboard which occurs when a 'appgroup' (collection of apps in one folder) is selected?
It would be used to show a few buttons.
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You can use simple Core animations to do that. Like so:
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:2];
coverView.center = CGPointMake(coverView.center.x, 400);
[UIView commitAnimations];
Where coverView is a view covering your buttons, when this animation is executed the view animates to the point X=x Y=400 and uses 2 seconds to do it. You can do this to any object in interface builder, and therefore you can experiment and create what suits you. Hope that helps.
JulenissensHjelper
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Im not with you here, whats the "tail"? – JulenissensHjelper May 22 '11 at 00:10
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its the arrow looking thing under the folder: http://www.tipb.com/images/stories/2010/09/ios_42_ipad_folders.png – max_ May 22 '11 at 00:28
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1ohh, you can just create a UIImageView with a tail and place it so it appears at the right spot after the animation. – JulenissensHjelper May 22 '11 at 00:32