Question

i am trying to implement curl effect by using below code snippet

curl down

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.95];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlDown
 forView:self.view cache:YES];
[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
[UIView setAnimationDelegate:self];

curl up

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.95];
[UIView setAnimationTransition:UIViewAnimationTransitionCurlUp forView:self.view cache:YES];
[UIView setAnimationDidStopSelector:@selector(animationDidStop:finished:context:)];
[UIView setAnimationDelegate:self];

but this works fine with portrait mode.

I want to implement it on landscape mode, taping on top right and bottom left.

currently its working in reverse effect.

Many Thanks

Answer 1

#import <QuartzCore/QuartzCore.h>

-(void)pageCurltoNextorPrevious:(UIView*)view:(int)identifier {

// Curl the image up or down
CATransition *animation = [CATransition animation];
[animation setDelegate:self];
[animation setDuration:1.0];
CAMediaTimingFunction *fun=[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
[animation setTimingFunction:fun];


if (identifier==1){
    //next animation
    animation.type = @"pageCurl";
    animation.subtype=@"fromRight";
    animation.fillMode = kCAFillModeForwards;
    animation.endProgress = 1.0; //0.58;
} 
else {
    //previous animation
    animation.type = @"pageCurl";
    animation.subtype=@"fromLeft";
    animation.fillMode = kCAFillModeBackwards;
    animation.startProgress = 0.0;
}
[animation setRemovedOnCompletion:NO];

//[view exchangeSubviewAtIndex:0 withSubviewAtIndex:2];

[[view layer] addAnimation:animation forKey:@"pageCurlAnimation"];
}