The following sample code demonstrates various ways of transitioning between views: http://developer.apple.com/iphone/library/samplecode/ViewTransitions/index.html
like this:UIViewAnimationTransitionFlipFromLeft. This can flip view from left.Could you describe what you mean by "flip the view" then?
For vertical flip you'll probably have to create your own transform. Docs here: http://developer.apple.com/document...ce/CGAffineTransform/Reference/reference.html
I think the MyPhoto code example contains the transformation matrix you want: http://developer.apple.com/samplecode/MyPhoto/
y, I have tried to flip use CGAffine, BUT it looks not very good. If there is no other way, I have to choose this methodIf you'll take a moment to actually examine the links I've posted, you'll see that CGAffineTransform offers flips in any direction.