use Interpolator for this Like,
package com.example.android;
import android.view.animation.Interpolator;
public class ReverseInterpolator implements Interpolator {
@Override
public float getInterpolation(float paramFloat) {
return Math.abs(paramFloat -1f);
}
}
Then in the animation you can install a new interpolator:
toptranslateanimation.setInterpolator(new ReverseInterpolator());
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