Question

How to animate the view transition left to right(Similar push view). When i click the button, the view should be transited from left to right. So please guide me and give some sample links.

Thanks.

Answer 1

Suppose that you want to push view2 from the right to replace view1.

// Set up view2
view2.frame = view1.frame;
view2.center = CGPointMake(view1.center.x + CGRectGetWidth(view1.frame), view1.center.y);
[view1.superview addSubview: view2];
// Animate the push
[UIView beginAnimations: nil context: NULL];
[UIView setAnimationDelegate: self];
[UIView setAnimationDidStopSelector: @selector(pushAnimationDidStop:finished:context:)];
view2.center = view1.center;
view1.center = CGPointMake(view1.center.x - CGRectGetWidth(view1.frame), view1.center.y);
[UIView commitAnimations];

Then (optionally) implement this method to remove view1 from the view hierarchy:

- (void) pushAnimationDidStop: (NSString *) animationID finished: (NSNumber *) finished context: (void *) context {
    [view1 removeFromSuperview];
}

In that animation delegate method you may also want to release view1 and set its reference to nil, depending on whether you need to keep it around after the transition.