考虑到以下两点：

1. Cocos2d-x从3.7版开始优化对Android Studio的支持，相信这一趋势还会继续。可惜目前相关帮助文档还不完善，很多东西需要自己摸索。

2. 多盟广告平台的官方帮助文档没有针对Cocos2d-x。

所以在此对自己所学所得做一些总结，也希望能帮助到那些处在摸索之中的朋友们。

本文所用cocos2d-x为3.8版，android studio为1.3.2版，多盟SDK为4.5.4版。

准备工作

1)进入多盟官网，注册账户。注册时需要上传身份证正反面照片和银行账户，并等待审核。审核大概需要一两天时间。

2) 审核通过后就可以添加应用和广告位（什么是广告位？你猜。。。我猜就是放广告的位置。可以申请不同的广告位来放置不同类型的广告）。填写一些相关信息，并获取publisher ID和广告位ID。这两个ID将被添加到我们的程序当中。

3)下载多盟安卓版SDK。添加应用最后一步会出现SDK下载选项，当然也可以直接进入下载页下载。我下的是4.5.4版。下完后，可以打开里面的UserGuide.pdf看一看。大部分信息都在里面。可惜并不针对Cocos2d-x以及Android Studio的。

开干正事

1) 在搞懂如何添加之前，建议不要直接在自己的工程里面添加，最好新建一个HelloWorld项目用于试验。关于如何新建一个Android studio版的HelloWorld，请参考上一篇博文。

2) 打开下载下来的多盟SDK->lib，将其中的domob_android_sdk.jar考到新建的HelloWorld项目下proj.android-studio->app->libs->armeabi文件夹中。并在android studio中找到domob_android_sdk.jar(在jiniLibs->armeabi下面)，右击，选择Add As Library。这样就把多盟的SDK添加到我们的项目中了。如果是eclipse，这一步稍有区别，需要通过Java Build Path添加。

3) 在android studio里面打开AndroidManifest.xml。相信你能找到这个文件！往里面添加两样东西：在<application>之前为多盟SDK添加权限，并在<application>里面添加多盟Activity声明。添加完后完整代码如下所示：

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="com.istudy.CocosDomob"
    android:installLocation="auto"
    android:versionCode="2"
    android:versionName="2.0">



    <!--多盟官网考来的部分1开始-->

    <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="19"/>

    <!-- 网络访问权限 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <!-- 获取网络信息状态，如当前的网络连接是否有效 -->
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <!-- 读取手机状态 -->
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <!-- 允许程序写入外部存储，如SD卡上写文件 -->
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <!-- 获取错略位置-->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <!-- 获取WiFi状态 -->
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

    <!-- 以下权限为可选权限，主要是品牌广告会用到，如果您没有添加，需要这些效果的品牌广告将不会投放到您的应用上 -->
    <!-- 震动权限 -->
    <uses-permission android:name="android.permission.VIBRATE" />

    <!--多盟官网考来的部分1结束-->


    <uses-feature android:glEsVersion="0x00020000" />

    <application
        tools:replace="android:label"
        android:label="@string/app_name"
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher">
        
        <!-- Tell Cocos2dxActivity the name of our .so -->
		<Meta-data android:name="android.app.lib_name"
				   android:value="cocos2dcpp" />

        <!-- 多盟官网考来的部分2开始 -->
        <activity android:name="cn.domob.android.ads.DmActivity"
            android:theme="@android:style/Theme.Translucent"></activity>
        <!--多盟官网考来的部分2结束-->

        <activity
            android:name="org.cocos2dx.cpp.AppActivity"
            android:screenOrientation="Portrait"
            android:configChanges="orientation|keyboardHidden|screenSize"
            android:label="@string/app_name"
            android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

    <uses-permission android:name="android.permission.INTERNET"/>
    
</manifest>

注意<application>里面的第一行tools:replace="android:label"本来是没有的，但是如果不添加该代码，编译时会提示出错（发生定义冲突），并给出添加该代码的建议。该代码还需配合第三行的xmlns:tools="http://schemas.android.com/tools"使用。

在Activity声明部分，我们把所有广告类型都声明了一遍，其实不必如此，按需添加即可。

4）在android studio里面找到AppActivity（在java->org.cocos2dx.cpp下面），往里面添加显示广告的java代码，但是由于我们要在cocos2d-x的HelloWorld场景里面（也就是C++代码里面）添加广告，所以此处需要做一些接口函数，而不是像多盟官方文件UserGuide.pdf里面直接令其显示。添加完后，完整代码如下所示：

AppActivity

@H_502_53@package org.cocos2dx.cpp; import org.cocos2dx.lib.Cocos2dxActivity; import cn.domob.android.ads.AdEventListener; //import cn.domob.android.ads.AdManager; import cn.domob.android.ads.AdManager.ErrorCode; import cn.domob.android.ads.AdView; import cn.domob.android.ads.InterstitialAd; import cn.domob.android.ads.InterstitialAdListener; //import android.app.ActionBar; import android.content.Context; import android.os.Bundle; import android.os.Handler; import android.os.Message; import android.util.Log; import android.view.View; //import android.view.ViewGroup; import android.widget.RelativeLayout; public class AppActivity extends Cocos2dxActivity { //声明应用和应用ID private static AppActivity _AppActivity; public static final String PUBLISHER_ID = "你的应用ID"; //声明插屏广告和插屏广告ID private InterstitialAd mInterstitialAd; public static final String InterstitialPPID = "你的插屏广告ID"; //声明广告条层和广告位ID private static RelativeLayout bannerLayout; private AdView mAdview; public static final String InlinePPID="你的广告条ID"; //声明handler用于发送消息 private static Handler handler; @Override protected void onCreate(Bundle savedIntanceState){ super.onCreate(savedIntanceState); //创建插屏广告 if (mInterstitialAd != null) { return; } mInterstitialAd = new InterstitialAd(this,PUBLISHER_ID,InterstitialPPID); mInterstitialAd.setInterstitialAdListener(new InterstitialAdListener() { @Override public void onInterstitialAdReady() { Log.i("DomobSDKDemo","onAdReady"); } @Override public void onLandingPageOpen() { Log.i("DomobSDKDemo","onLandingPageOpen"); } @Override public void onLandingPageClose() { Log.i("DomobSDKDemo","onLandingPageClose"); } @Override public void onInterstitialAdPresent() { Log.i("DomobSDKDemo","onLandingAdPresent"); } @Override public void onInterstitialAdDismiss() { mInterstitialAd.loadInterstitialAd(); Log.i("DomobSDKDemo","onInterstitialAdDismiss"); } @Override public void onInterstitialAdFailed(ErrorCode errorCode) { Log.i("DomobSDKDemo","onInterstitialAdFailed"); } @Override public void onInterstitialAdLeaveApplication() { Log.i("DomobSDKDemo","onInterstitialAdLeaveApplication"); } @Override public void onInterstitialAdClicked(InterstitialAd arg0) { Log.i("DomobSDKDemo","onInterstitialAdClicked"); } }); mInterstitialAd.loadInterstitialAd(); //创建广告条容器 bannerLayout = new RelativeLayout(this); RelativeLayout.LayoutParams parentLayoutParams = new RelativeLayout.LayoutParams( RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT); this.addContentView(bannerLayout,parentLayoutParams); //加载广告 handler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case 0:// showBannerAd() if (bannerLayout.getChildCount() == 0) { //创建广告条 //setContentView(R.layout.banner); //mAdContainer = (RelativeLayout) findViewById(R.id.adcontainer); //注意这两行注释掉的代码来自多盟文档，不可用 mAdview = new AdView(AppActivity.this,InlinePPID); mAdview.setKeyword("game"); mAdview.setUserGender("male"); mAdview.setUserBirthdayStr("2000-08-08"); mAdview.setUserPostcode("123456"); mAdview.setAdEventListener(new AdEventListener() { @Override public void onEventAdReturned(AdView adView) { Log.i("DomobSDKDemo","onDomobAdReturned"); } @Override public void onAdFailed(AdView adView,ErrorCode errorCode) { Log.i("DomobSDKDemo","onDomobAdFailed"); } @Override public void onAdOverlayPresented(AdView adView) { Log.i("DomobSDKDemo","overlayPresented"); } @Override public void onAdOverlayDismissed(AdView adView) { Log.i("DomobSDKDemo","Overrided be dismissed"); } @Override public void onLeaveApplication(AdView adView) { Log.i("DomobSDKDemo","onDomobLeaveApplication"); } @Override public void onAdClicked(AdView adView) { Log.i("DomobSDKDemo","onDomobAdClicked"); } @Override public Context onAdRequiresCurrentContext() { //return null; return AppActivity.this; } }); //添加广告并设置它的位置 RelativeLayout.LayoutParams layoutParams = new RelativeLayout.LayoutParams( RelativeLayout.LayoutParams.WRAP_CONTENT,RelativeLayout.LayoutParams.WRAP_CONTENT); //layoutParams.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM,RelativeLayout.TRUE); layoutParams.addRule(RelativeLayout.CENTER_HORIZONTAL,RelativeLayout.TRUE); bannerLayout.addView(AppActivity.this.mAdview,layoutParams); }else{ if (mAdview != null) { mAdview.setVisibility(View.VISIBLE); mAdview.requestRefreshAd(); } } break; case 1: //hideBannerAd() if (mAdview != null) { mAdview.setVisibility(View.GONE); } break; case 2: //initInterstitialAd() break; case 3: //showInterstitialAd() if (mInterstitialAd != null) { if (mInterstitialAd.isInterstitialAdReady()) { mInterstitialAd.showInterstitialAd(AppActivity.this); } else { Log.i("DomobSDKCocos2d-xDemo","Interstitial Ad is not ready"); mInterstitialAd.loadInterstitialAd(); } } else { Log.i("DomobSDKCocos2d-xDemo","Interstitial Ad is not init"); } default: break; } } }; } //打开和关闭广告 public static void showBannerAd() { handler.sendEmptyMessage(0); } public static void hideBannerAd() { handler.sendEmptyMessage(1); } public static void initInterstitialAd() { handler.sendEmptyMessage(2); } public static void showInterstitialAd() { handler.sendEmptyMessage(3); } }
注意这里和多盟官方文档UserGuide.pdf的两点区别。1,我们的场景都是通过cocos2d-x创建的，因此本身没有布局文件xml，所以我们不通过布局文件以及setContentView(R.layout.banner)和mAdContainer=(RelativeLayout)findViewById(R.id.adcontainer)两条命令来创建广告条，而是选择通过代码来创建一个RelativeLayout布局对象作为广告条的容器。2，我们通过Handler来发送消息，从而起到控制广告开关的作用。

5) 在cocos2d-x的classes下面添加一个C++类，命名为DomobAd,里面通过jni把java的广告开关函数转换成了C++函数，以便在cocos2d-x场景里调用。完整代码如下所示：

DomobAd.h

#ifndef CLASSES_DOMOBAD_H
#define CLASSES_DOMOBAD_H


class DomobAd {
public:
    static void showBannerAd();
    static void hideBannerAd();
    static void showInterstitialAd();
};


#endif //CLASSES_DOMOBAD_H

DomobAd.cpp

#include "DomobAd.h"
#include "cocos2d.h"

USING_NS_CC;

#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
#include "platform/android/jni/JniHelper.h"
#include <jni.h>

const char* AppActivityCalssName = "org/cocos2dx/cpp/AppActivity";

//显示广告条
void DomobAd::showBannerAd()
{
    cocos2d::JniMethodInfo showBanner;
    if (cocos2d::JniHelper::getStaticMethodInfo(showBanner,AppActivityCalssName,"showBannerAd","()V")) {
        showBanner.env->CallStaticVoidMethod(showBanner.classID,showBanner.methodID);
            }
    else{
        log("jni:showBannerStatic false");
    }
}

//隐藏广告条
void DomobAd::hideBannerAd()
{
    cocos2d::JniMethodInfo hideBanner;
    if (cocos2d::JniHelper::getStaticMethodInfo(hideBanner,"hideBannerAd","()V")) {
        hideBanner.env->CallStaticVoidMethod(hideBanner.classID,hideBanner.methodID);
    }
    else{
        log("jni:hideBannerStatic false");
    }
}

//显示插屏广告
void DomobAd::showInterstitialAd()
{
    cocos2d::JniMethodInfo showInterstitial;
    if(cocos2d::JniHelper::getStaticMethodInfo(showInterstitial,"showInterstitialAd","()V")){
        showInterstitial.env->CallStaticVoidMethod(showInterstitial.classID,showInterstitial.methodID);
        showInterstitial.env->DeleteLocalRef(showInterstitial.classID);
    }
    else{
        log("jni:showBannerStatic false");
    }
}


#else


//广告条
void DomobAd::showBannerAd()
{
    log("showBannerAd() called");
    return;
}

void DomobAd::hideBannerAd()
{
    log("hideBannerAd() called");
    return;
}

//插屏广告
void DomobAd::showInterstitialAd(){
    log("showInterstitialAd() called");
    return;
}



#endif

6) 接下来就可以愉快的在Cocos2d-x场景里添加广告了。这里我们就在HelloWorld场景的上端添加一个广告条，并在场景的中间设置一个按钮，一按就弹出一个插屏广告。完整代码如下：

HelloWorldScene.h

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"

class HelloWorld : public cocos2d::Layer
{
public:
    static cocos2d::Scene* createScene();

    virtual bool init();
    
    // a selector callback
    void menuCloseCallback(cocos2d::Ref* pSender);
    
    void adCallback(cocos2d::Ref* pRef);
    
    
    // implement the "static create()" method manually
    CREATE_FUNC(HelloWorld);
};

#endif // __HELLOWORLD_SCENE_H__

HelloWorldScene.cpp

#include "HelloWorldScene.h"
#include "DomobAd.h"

USING_NS_CC;

Scene* HelloWorld::createScene()
{
    // 'scene' is an autorelease object
    auto scene = Scene::create();
    
    // 'layer' is an autorelease object
    auto layer = HelloWorld::create();

    // add layer as a child to scene
    scene->addChild(layer);

    // return the scene
    return scene;
}

// on "init" you need to initialize your instance
bool HelloWorld::init()
{
    //////////////////////////////
    // 1. super init first
    if ( !Layer::init() )
    {
        return false;
    }
    
    Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

    /////////////////////////////
    // 2. add a menu item with "X" image,which is clicked to quit the program
    //    you may modify it.

    // add a "close" icon to exit the progress. it's an autorelease object
    auto closeItem = MenuItemImage::create(
                                           "CloseNormal.png","CloseSelected.png",CC_CALLBACK_1(HelloWorld::menuCloseCallback,this));
    
	closeItem->setPosition(Vec2(origin.x + visibleSize.width - closeItem->getContentSize().width/2,origin.y + closeItem->getContentSize().height/2));

    //添加一个按钮用来弹出插屏广告
    auto adItem = MenuItemImage::create(
                                        "CloseNormal.png",CC_CALLBACK_1(HelloWorld::adCallback,this));
    
    adItem->setPosition(Vec2(origin.x + visibleSize.width/2,origin.y + visibleSize.height/2));
    
    // create menu,it's an autorelease object
    auto menu = Menu::create(closeItem,adItem,NULL);
    menu->setPosition(Vec2::ZERO);
    this->addChild(menu,1);

    /////////////////////////////
    // 3. add your codes below...

    // add a label shows "Hello World"
    // create and initialize a label
    
    //添加广告条
    DomobAd::showBannerAd();
    
    auto label = Label::createWithTTF("Hello World","fonts/Marker Felt.ttf",24);
    
    // position the label on the center of the screen
    label->setPosition(Vec2(origin.x + visibleSize.width/2,origin.y + visibleSize.height - label->getContentSize().height));

    // add the label as a child to this layer
    this->addChild(label,1);

    // add "HelloWorld" splash screen"
    auto sprite = Sprite::create("HelloWorld.png");

    // position the sprite on the center of the screen
    sprite->setPosition(Vec2(visibleSize.width/2 + origin.x,visibleSize.height/2 + origin.y));

    // add the sprite as a child to this layer
    this->addChild(sprite,0);
    
    return true;
}


void HelloWorld::menuCloseCallback(Ref* pSender)
{
    Director::getInstance()->end();

#if (CC_TARGET_PLATFORM == CC_PLATFORM_IOS)
    exit(0);
#endif
}

void HelloWorld::adCallback(cocos2d::Ref* pRef){
    DomobAd::showInterstitialAd();
}

效果如下图所示

从效果图里可以看出我已经在AndroidManifest.xml里把横屏改成了竖屏。

人生感悟：1.多跟人交流；2，多尝试；3，打好基础。

水平有限，如有不妥，欢迎指正！

参考文献：

［1］多盟官方UserGuide.pdf

［2］http://blog.csdn.net/aa294194253/article/details/38514125

［3］http://blog.csdn.net/u011909633/article/details/47038859

Cocos2d-x 3.X, Android Studio版添加多盟广告平台

准备工作

开干正事

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