How can I use this animation code?
- by O.C.
I'm a newbie and I need some help.
I want to display a popup image over a given UIView, but I would like it to behave like the UIAlertView or like the Facebook Connect for iPhone modal popup window, in that it has a bouncy, rubbber-band-like animation to it.
I found some code on the net from someone who was trying to do something similar. He/she put this together, but there was no demo or instructions.
Being that I am so new, I don't have any idea as to how to incorporate this into my code.
This is the routine where I need the bouncy image to appear:
- (void) showProductDetail
{
. . .
////////////////////////////////////////////////////////////////////////
// THIS IS A STRAIGHT SCALE ANIMATION RIGHT NOW. I WANT TO REPLACE THIS
// WITH A BOUNCY RUBBER-BAND ANIMATION
_productDetail.transform = CGAffineTransformMakeScale(0.1,0.1);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
_productDetail.transform = CGAffineTransformMakeScale(1,1);
[UIView commitAnimations];
}
. . .
}
This is the code I found:
float pulsesteps[3] = { 0.2, 1/15., 1/7.5 };
- (void) pulse {
self.transform = CGAffineTransformMakeScale(0.6, 0.6);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:pulsesteps[0]];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(pulseGrowAnimationDidStop:finished:context:)];
self.transform = CGAffineTransformMakeScale(1.1, 1.1);
[UIView commitAnimations];
}
- (void)pulseGrowAnimationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:pulsesteps[1]];
[UIView setAnimationDelegate:self];
[UIView setAnimationDidStopSelector:@selector(pulseShrinkAnimationDidStop:finished:context:)];
self.transform = CGAffineTransformMakeScale(0.9, 0.9);
[UIView commitAnimations];
}
- (void)pulseShrinkAnimationDidStop:(NSString *)animationID finished:(NSNumber *)finished context:(void *)context {
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:pulsesteps[2]];
self.transform = CGAffineTransformIdentity;
[UIView commitAnimations];
}
Thanks in advance for any help that you can give me.
