将Mopub广告集成到Cocos2dx 2.1中



Mopub集成说明建议用xml创建广告视图,其中包含如下片段:

<com.mopub.mobileads.MoPubView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/adview"
android:layout_width="fill_parent"
android:layout_height="50dp"
/> 

然后,说明建议在活动的创建方法中创建广告视图,如下所示:

moPubView = (MoPubView)findViewById(R.id.adview);
moPubView.setAdUnitId("123412341234");
moPubView.loadAd();

不幸的是,moPubView没有创建,因为Cocos2dx 2.1不再使用XML进行布局。因此,由于空指针异常,该应用程序在启动时崩溃。

在尝试创建广告视图之前,我尝试将R.layout.main传递给setContentView。这确实成功地创建了广告视图,但应用程序的其余部分不可见。

如何在不使用XML的情况下以编程方式创建类似上面的视图

我认为这解决了空指针异常问题,而不必调用setContentView

private static BannerAdManager m_adDelegate = null;
private static FrameLayout.LayoutParams m_bannerParam = null;
private static FrameLayout m_appLayout = null;

public static void initialize(Activity p_activity)
{
    // create instance of delegate
    if( m_adDelegate == null )
    {
        m_adDelegate = new BannerAdManager();
    }
    m_activity = p_activity;

    //~~~setup mopub banner ad
    //~~~create mopub ad view
    m_mopubView = new MoPubView(m_activity);
    m_bannerParam = new FrameLayout.LayoutParams(   
                        FrameLayout.LayoutParams.WRAP_CONTENT,
                        FrameLayout.LayoutParams.WRAP_CONTENT
                    );
    m_mopubView.setAdUnitId(Config_Android._ID);
    m_mopubView.setBannerAdListener(m_adDelegate);
    m_mopubView.loadAd();
    //get current layout
    m_appLayout = (FrameLayout) m_activity.findViewById(android.R.id.content);
    // set default alignment
    m_bannerParam.gravity = Gravity.TOP | Gravity.CENTER;
    //add mopub view to layout
    m_appLayout.addView(m_mopubView, m_bannerParam);
}
    public static void setBannerPositionTopWithPadding(float p_padding)
    {
        getActivity().runOnUiThread(new Runnable() 
        {
            public void run()
            {
                activity = getActivity();
                m_bannerParam.gravity  = Gravity.TOP | Gravity.CENTER;
                m_bannerParam.width    = FrameLayout.LayoutParams.WRAP_CONTENT;
                m_bannerParam.height   = FrameLayout.LayoutParams.WRAP_CONTENT;
                m_bannerParam.topMargin = (int) p_padding;
                m_appLayout.updateViewLayout(m_mopubView, m_bannerParam);
                m_mopubView.refreshDrawableState();
            }
        });
    }

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