site_archiver@lists.apple.com Delivered-To: Cocoa-dev@lists.apple.com Dear list, I have a CALayer called textLayer which displays some message, for example "Hello". I perform two consecutive animations on it. At the end of the first animation, the text is no more visible. The message then gets updated (to "Good bye", let's say) and the second animation brings the layer back to its initial position. My problem is that at the end of the first animation, the "Hello" message shows up in its initial position for a fraction of a second. I've tried to set the fillMode of the first animation to kCAFillModeForwards with no effect. Here is the code for the setup of the animations and the animationDidStop: delegate call for the first one : textRotationFirstHalf = [[CABasicAnimation animation] retain]; textRotationFirstHalf.fromValue = [NSNumber numberWithFloat: 0.0]; textRotationFirstHalf.toValue = [NSNumber numberWithFloat: M_PI / 2]; textRotationFirstHalf.keyPath = [NSString stringWithString: @"transform.rotation.x"]; textRotationFirstHalf.timingFunction = [CAMediaTimingFunction functionWithName: kCAMediaTimingFunctionEaseIn]; textRotationFirstHalf.delegate = self; [textRotationFirstHalf setValue:@"Rotation Continues" forKey:@"What Next"]; textRotationFirstHalf.duration = 0.25; textRotationSecondHalf = [[CABasicAnimation animation] retain]; textRotationSecondHalf.fromValue = [NSNumber numberWithFloat: M_PI / 2]; textRotationSecondHalf.toValue = [NSNumber numberWithFloat: 0]; textRotationSecondHalf.keyPath = [NSString stringWithString: @"transform.rotation.x"]; textRotationSecondHalf.timingFunction = [CAMediaTimingFunction functionWithName: kCAMediaTimingFunctionEaseOut]; textRotationSecondHalf.duration = 0.25; -(void)animationDidStop:(CAAnimation *)theAnimation finished:(BOOL)flag { NSString *value = [theAnimation valueForKey: @"What Next"]; if([value isEqual:@"Rotation Continues"]) { [self updateText]; [textLayer addAnimation: textRotationSecondHalf forKey: @"End Rotation"]; } } The updateText method just calls [textLayer setNeedsDisplay] which results in the display of the "Good bye" message, because a state variable has changed meanwhile. What can I do to recover the smoothness of this animation sequence and get rid of the unwanted frame ? Thank you for any ideas, Rodolfo Niborski http://itunes.com/apps/yiddishforkids1-alefbeys_____________________________... Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/site_archiver%40lists.apple... This email sent to site_archiver@lists.apple.com