I would like to animate a curtain, which gets opened. I have two images: one for the left and one for the right side of the curtain (depicted in red). I would like to smoothly slide them away with Core Animation. For what animation type should I look for? How do I achieve a realistic sliding style?
Regards,
Stefan
alt text http://img.skitch.com/20100627-8ytxrbe64ccbruj49c2pbs7kt2.png
I'm not sure why people are suggesting using a translation. If all you need to do is slide the images, simply call -setCenter on each image view inside an animation block. Like this:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
[leftCurtainImageView setCenter:pointOffScreenLeft];
[rightCurtainImageView setCenter:pointOffScreenRight];
[UIView commitAnimations];
Where pointOffScreenLeft, and pointOffScreenRight are calculated something like:
CGPoint pointOffScreenLeft = CGPointMake(
-[leftCurtainImageView bounds].size.width,
[leftCurtainImageView frame].origin.y);
CGPoint pointOffScreenRight = CGPointMake(
[rightCurtainImageView frame].origin.x +
[rightCurtainImageView bounds].size.width,
[leftCurtainImageView frame].origin.y);
These calculations assume that the curtains are positioned at the far left and far right edges respectively of their containing view.
最简单的解决方案是必须进行imageview或CGLayers,然后在动画块中使用CGAffineTransformTranslate将其滑出屏幕。
Man
After a long search. The only way I could find is this.
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