RectFEvaluator.java

package no.agens.depth.lib;

import android.animation.TypeEvaluator;
import android.graphics.RectF;

public class RectFEvaluator implements TypeEvaluator<RectF> {

  @Override public RectF evaluate(float fraction, RectF startValue, RectF endValue) {
    RectF rect = new RectF(startValue.left + (int) ((endValue.left - startValue.left) * fraction),
        startValue.top + (int) ((endValue.top - startValue.top) * fraction),
        startValue.right + (int) ((endValue.right - startValue.right) * fraction),
        startValue.bottom + (int) ((endValue.bottom - startValue.bottom) * fraction));

    return rect;
  }
}