请给我一个安卓PopupWindow的底部滑入和滑出的动画并给出使用样例

以下是一个底部滑入和滑出动画的 PopupWindow 样例：

public class BottomSlidePopupWindow extends PopupWindow {

    private View mContentView;
    private View mPopupView;
    private int mAnimationStyle;

    public BottomSlidePopupWindow(Context context, View contentView) {
        super(context);
        this.mContentView = contentView;

        setWidth(ViewGroup.LayoutParams.MATCH_PARENT);
        setHeight(ViewGroup.LayoutParams.MATCH_PARENT);
        setFocusable(true);
        setOutsideTouchable(true);
        setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT));

        setAnimationStyle(R.style.BottomSlideAnimation);
        setContentView(mContentView);
    }

    public void setPopupView(View popupView) {
        this.mPopupView = popupView;
        setContentView(mPopupView);
    }

    public void setAnimationStyle(int animationStyle) {
        mAnimationStyle = animationStyle;
    }

    public void show(View anchorView) {
        showAtLocation(anchorView, Gravity.BOTTOM, 0, 0);
        if (mPopupView != null) {
            mPopupView.startAnimation(getAnimation(true));
        }
    }

    public void dismiss() {
        if (mPopupView != null) {
            mPopupView.startAnimation(getAnimation(false));
        }
        mContentView.postDelayed(new Runnable() {
            @Override
            public void run() {
                BottomSlidePopupWindow.super.dismiss();
            }
        }, 300);
    }

    private Animation getAnimation(boolean isShow) {
        if (mAnimationStyle == 0) {
            return getDefaultAnimation(isShow);
        } else {
            return AnimationUtils.loadAnimation(mContentView.getContext(), mAnimationStyle);
        }
    }

    private Animation getDefaultAnimation(boolean isShow) {
        Animation animation;
        if (isShow) {
            animation = new TranslateAnimation(0, 0, mContentView.getHeight(), 0);
        } else {
            animation = new TranslateAnimation(0, 0, 0, mContentView.getHeight());
        }
        animation.setInterpolator(new AccelerateDecelerateInterpolator());
        animation.setDuration(300);
        return animation;
    }
}

使用方法：

View contentView = LayoutInflater.from(context).inflate(R.layout.popup_content, null);
View popupView = LayoutInflater.from(context).inflate(R.layout.popup_view, null);
BottomSlidePopupWindow popupWindow = new BottomSlidePopupWindow(context, contentView);
popupWindow.setPopupView(popupView);
popupWindow.show(anchorView);
popupWindow.dismiss();

其中 `popup_content` 和 `popup_view` 是你自己定义的布局文件，`anchorView` 是 PopupWindow 的锚点视图。你可以通过 `setAnimationStyle` 方法设置不同的动画效果，也可以不设置使用默认的底部滑入和滑出动画。