Lisbeth Salander Lisbeth Salander - 1 month ago 9
CSS Question

How to dynamically create '@-Keyframe' CSS animations

I have a requirement to rotate a div and stop at a particular position ( The value will be recieved from server).

I tried native JS to rotate and stop but its eating up my CPU big time.

I can rotate with CSS animation but I need to create a class which will dynamically describe where to stop the animation. Something like

@-webkit-keyframes spinIt {
100% {
-webkit-transform: rotate(A_DYNAMIC_VALUE);
}
}
@-moz-keyframes spinIt {
100% {
-webkit-transform: rotate(A_DYNAMIC_VALUE);
}
}


Here is one reference

http://jsfiddle.net/bVkwH/8/

Thanks in Advance

Answer

well i don't think it is easy to create dynamic @keyframes they are inflexible because they must be hard-coded.

Transitions are a little easier to work with, as they can gracefully respond to any CSS changes performed by JavaScript.

However, the complexity that CSS transitions can give you is pretty limited — an animation with multiple steps is difficult to achieve.

This is a problem that CSS @keyframe animations are meant to solve, but they don’t offer the level of dynamic responsiveness that transitions do.

but these links might help you

Link1 : a tool that generates a @-webkit-keyframe animation with many tiny steps. This opens the door to an unlimited selection of easing formula.

Link2 This might be very useful.

Link3 it will be a great help for you to take it as a base as it provides a UI to create animations and exports it to CSS code.

I guess this solution will definitely work for you. Its is used for dynamic keyframes