安卓工程怎么在底部放一个FrameLayout，用来显示banner广告

Creator 2.x
#1

FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT, FrameLayout.LayoutParams.WRAP_CONTENT);

FrameLayout f1 = new FrameLayout(this);
ac.addContentView(f1,lp );

我现在这样写，显示出来是在顶部，怎样才能让他贴着底部，并且左右居中？

#2

大佬，你这ac是啥呀

#3 
private FrameLayout mBannerContainer = null;

/**
 * 动态创建 FrameLayout 作为 Banner 广告的容器
 */
private void newBannerContainer(Activity activity) {
    LinearLayout linearLayout = new LinearLayout(activity); // 创建帧布局对象layout
    LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.MATCH_PARENT,
            ViewGroup.LayoutParams.MATCH_PARENT
    );
    mBannerContainer = new FrameLayout(activity);
    mBannerContainer.setVisibility(View.GONE);
    linearLayout.addView(mBannerContainer, new LinearLayout.LayoutParams(
            ViewGroup.LayoutParams.MATCH_PARENT,
            ViewGroup.LayoutParams.WRAP_CONTENT
    ));
    linearLayout.setGravity(Gravity.BOTTOM | Gravity.CENTER);
    activity.addContentView(linearLayout, layoutParams);// 显示布局管理器
}

填充广告后展示
mBannerContainer.setVisibility(View.VISIBLE);

隐藏
mBannerContainer.setVisibility(View.GONE);

#4

应该是activity

#5

大佬你显示成功没呀，我一点反应都没有

#6

activity

#7

一开始显示成功了，但第二天跑起来高度变得太大了，后来放弃了

#8

Android中

        mAdContainer = new FrameLayout(mActivity);
        adLP = new FrameLayout.LayoutParams(adSlot.getWidth(), adSlot.getHeight());
        mActivity.addContentView(mAdContainer, adLP);
        adLP.leftMargin = adSlot.getLeft();
        adLP.topMargin = adSlot.getTop();
        mAdContainer.setLayoutParams(adLP);
        mAdContainer.setVisibility(View.GONE);

Cocos中

        let winSize = cc.winSize; // 屏幕大小
        let worldARPos = this.node.parent.convertToWorldSpaceAR(this.node.position); // 转换成世界坐标
        let worldPos = cc.v2(worldARPos.x - this.node.width * this.node.anchorX, cc.winSize.height - (worldARPos.y + this.node.height * (1 - this.node.anchorY))); // 转换成不带锚点以左上角为原点
        // 换算成像素
        let systemInfo = zs.getSystemInfoSync();
        let widthPx = Math.ceil(this.node.width / winSize.width * systemInfo.windowWidth);
        let heightPx = Math.ceil(this.node.height / winSize.height * systemInfo.windowHeight);
        let marginLeftPx = Math.ceil(worldPos.x / winSize.width * systemInfo.windowWidth);
        let marginTopPx = Math.ceil(worldPos.y / winSize.height * systemInfo.windowHeight);
        return {
            width: widthPx,
            height: heightPx,
            left: marginLeftPx,
            top: marginTopPx
        }

返回的参数，便是安卓中需要的四个参数，这样，你的node大小和位置就对应了安卓中控件容器的位置和大小