Better interpolation and duration for animations

import android.view.InsetsState.InternalInsetType;

import android.view.SurfaceControl.Transaction;

import android.view.WindowInsets.Type.InsetType;

import android.view.animation.Interpolator;

import android.view.animation.PathInterpolator;

import com.android.internal.annotations.VisibleForTesting;

 */

public class InsetsController implements WindowInsetsController {

    // TODO: Use animation scaling and more optimal duration.

    private static final int ANIMATION_DURATION_MS = 400;

    private static final int ANIMATION_DURATION_SHOW_MS = 275;

    private static final int ANIMATION_DURATION_HIDE_MS = 340;

    private static final Interpolator INTERPOLATOR = new PathInterpolator(0.4f, 0f, 0.2f, 1f);

    private static final int DIRECTION_NONE = 0;

    private static final int DIRECTION_SHOW = 1;

    private static final int DIRECTION_HIDE = 2;

                        show ? controller.getHiddenStateInsets() : controller.getShownStateInsets(),

                        show ? controller.getShownStateInsets() : controller.getHiddenStateInsets()

                );

                mAnimator.setDuration(ANIMATION_DURATION_MS);

                mAnimator.setDuration(show

                        ? ANIMATION_DURATION_SHOW_MS

                        : ANIMATION_DURATION_HIDE_MS);

                mAnimator.setInterpolator(INTERPOLATOR);

                mAnimator.addListener(new AnimatorListenerAdapter() {

                    @Override

                    public void onAnimationCancel(Animator animation) {