将AdView添加到LinearLayout时，Android AdMob AIR本机扩展崩溃

我正在创建一个AIR本机扩展来集成AdMob

我遵循了此处介绍的使用外部资源的指导原则：

并将google的adMob jar打包到我的本机扩展jar中，如下所述：

我有一个NewAdFunction类，它实现了FREFunction，并由actionscript端调用。NewAdFunction.call函数基本上包含以下内容：在我的实际代码中，我有必要的try捕获

Intent intent = new Intent(context.getActivity(), AdMobActivity.class);
layoutID = context.getResourceId("layout.adlayout");
intent.putExtra("layoutID", layoutID);
context.getActivity().startActivity(intent);

在上面的代码中，adlayout是位于res/layout中的xml。我将整个res文件夹打包到最后一个jar中，并在testair项目的xml中包含以下代码

<application android:enabled="true" android:debuggable="true">
            <activity android:name="com.mycompany.admob.AdMobActivity"></activity>
</application>

---

我所能想到的就是layout可以为null，但我添加了一个跟踪函数，它不是null。

我发现layout变量实际上是null。我没有使用xml创建布局，而是以编程方式创建布局，如下所示：

public FREObject call(FREContext context, FREObject[] args) {
    AdView adView = new AdView(context.getActivity(), AdSize.BANNER, NewAdFunction.developerId);
    Activity activity = context.getActivity();

    ViewGroup viewGroup = (ViewGroup)activity.findViewById(android.R.id.content);
    viewGroup = (ViewGroup)viewGroup.getChildAt(0);
    LinearLayout layout = new LinearLayout(activity);
    viewGroup.addView(layout, new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);

    adView.setVisibility(View.VISIBLE);
    layout.addView(adView, params);
}

这是我发现的在AIR本机扩展中添加视图的最佳方法

public FREObject call(FREContext context, FREObject[] args) {
    AdView adView = new AdView(context.getActivity(), AdSize.BANNER, NewAdFunction.developerId);
    Activity activity = context.getActivity();

    ViewGroup viewGroup = (ViewGroup)activity.findViewById(android.R.id.content);
    viewGroup = (ViewGroup)viewGroup.getChildAt(0);
    LinearLayout layout = new LinearLayout(activity);
    viewGroup.addView(layout, new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
    LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);

    adView.setVisibility(View.VISIBLE);
    layout.addView(adView, params);
}