Make ObjectAnimator animation duration independent of global animator duration scale setting in developer options

Question

How can you make ObjectAnimator independent of the "Animator duration scale" developer options setting when constant and unmodifiable speed is critical?

Diamine

Answer 1

Had to use hidden API to access the setDurationScale method on the ValueAnimator object.

Diamine

how did you did that? Could u pls post some example for help. – Douglas

Answer 2

I noticed there is no explicit answer for this. You can do this by calling the hidden API via reflection:

// Get duration scale from the global settings.
float durationScale = Settings.Global.getFloat(context.getContentResolver(),
                        Settings.Global.ANIMATOR_DURATION_SCALE, 0);

// If global duration scale is not 1 (default), try to override it
// for the current application.
if (durationScale != 1) {
  try {
    ValueAnimator.class.getMethod("setDurationScale", float.class).invoke(null, 1f);
    durationScale = 1f;
  } catch (Throwable t) {
    // It means something bad happened, and animations are still
    // altered by the global settings. You should warn the user and
    // exit application.
  }
}

For more details you can check this blog post: https://arpytoth.com/2016/12/20/android-objectanimator-independent-of-global-animator-duration/

Palumbo

Very nice this answer is still here as the linked domain has gone entirely offline and the Internet Archive doesn't have a copy of it. – Inconvincible

Answer 3

If you dont want to mess with setDurationScale, just do this

//in activity, kotlin
val animScale = Settings.Global.getFloat(this.contentResolver, Settings.Global.ANIMATOR_DURATION_SCALE, 1f)
animator.setDuration((timeInMs/animScale).toLong())

Bulter

This doesn't really solve the issue entirely as the user can turn off the animation, which sets the scale to 0. This would then fail. – Ratliff