cakeyframeanimation

I'd like to animate a list of items. The first should animate with 0ms delay, the second should do the same animation with 50ms delay, third with 100ms delay and so on. The list is dynamic so I won't know the length. Is this possible? Note: I don't need help with animations / keyframes specifically, but how to use nth-child or nth-of-type (or anything else?) to achieve a progressive animation delay based on relative position between siblings. I'm using React / SASS / Webpack if that helps. I can use jQuery if necessary but I'd rather avoid it if possible. Here's an example on how to do

I want to draw a path gradually, i.e. I want the path to appear as if it is drawn by hand. I have managed to create the path I need. I have also managed to create a CAKeyFrameAnimation that uses this path. But so far I can only move an object along this path. I would like to both move an object (say a pencil) along the path, and have the path appear as if it is drawn. Any pointers? Create a CAShapeLayer with your path and animate the layer's strokeEnd from 0.0 to 1.0 . (This is new in iOS SDK 4.2, won't work with previous versions.) 来源： https://stackoverflow.com/questions/4390911/drawing-a

In another test of Key Frame animation I am combining moving a UIImageView (called theImage ) along a bezier path and scaling larger it as it moves, resulting in a 2x larger image at the end of the path. My initial code to do this has these elements in it to kick off the animation: UIImageView* theImage = .... float scaleFactor = 2.0; .... theImage.center = destination; theImage.transform = CGAffineTransformMakeScale(1.0,1.0); CABasicAnimation *resizeAnimation = [CABasicAnimation animationWithKeyPath:@"bounds.size"]; [resizeAnimation setToValue:[NSValue valueWithCGSize:CGSizeMake(theImage