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androidanimationobjectanimator

Android ObjectAnimator Start offset

I've tried looking all around google and various stack questions but can't seem to find anything similar to what I'm doing.

Basically, I just want to start a given ObjectAnimator animation at a certain offset of the animation (e.g. 30% through the animation, or 70% through the animation) rather than starting it from the beginning.

I'm not sure if I should be using a specific Interpolator or if there is a similar function to animation.setStartTime(). I've been using this guide heavily but can't seem to find anything in the API for setting the initial timeline of an animation to begin.

Maybe I need to be using keyframes? But I'm not sure how to sync up a keyframe to just start at 30% or 50% or 70% of the way through.

I just need to be pointed in the right direction, any help is appreciated.

Thanks

Solution

  • The method setCurrentFraction()

    Sets the position of the animation to the specified fraction.

    So setting the animation to an offset of 30% could be achieved with

    animator.setCurrentFraction(0.3f);