Note from Ryeeeeee:Because Cocos2d-x V3.0 use android.app.NativeActivity instead of android.app.Activity, there is an issue that Admob don’t work in your pure native activity application. This post will walk you through process of fixing the issue.
P.S. Sorry for my english, it is not my native language, unfortunately.
Create App in Admob
First, you need to create a free Admob account to get started. And you have to provide the following information to finish create an Admob account.
After that, you can add your first app,such as.
Using Google Play Services SDK
Because Google Play will stop accepting new or updated apps that use the old standalone Google Mobile Ads SDK v6.4.1 or lower on August 1, 2014, we select Android(Google Play Services). This is the recommended way of enabling ads on your Android app.
Set Up Google Play Services SDK
To develop an app using the Google Play services APIs, you must download the Google Play services SDK from the SDK Manager.
- Launch the SDK Manager:
in Eclipse(with ADT), select Window -> Android SDK Manager - Install the Google Play services SDK:
Scroll to the bottom of the package list, expand Extras, select Google Play services, and install it. it is saved in your Android SDK environment at $ANDROID_SDK/extras/google/google_play_services/. - Make a copy of the Google Play services library project:
Copy the library project at $ANDROID_SDK/extras/google/google_play_services/libproject/google-play-services_lib/ to the location where you maintain your Android app projects.
Incorporating the SDK
Add and reference the Google Play services library project. Right click on your project in Eclipse and select Properties.
Select Android and then click Add… Find the google-play-services_lib project and select OK to add the Google Play services library.
The project now references the Google Play services library.
Open the AndroidManifest.xml and add the following tag as a child of the <application> element.
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version"/>
<activity android:name="com.google.android.gms.ads.AdActivity"
android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>
Add the following tag as a child of the <manifest> element.
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
Because Cocos2d-x V3.0 use android.app.NativeActivity instead of android.app.Activity, there is an issue that Admob don’t work in your pure native activity application. The following is the solution.
Now, open the Cocos2dxActivity.java and modify it in such a way:
package org.cocos2dx.cpp;
import android.app.NativeActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Gravity;
import android.view.ViewGroup.LayoutParams;
import android.view.ViewGroup.MarginLayoutParams;
import android.view.WindowManager;
import android.widget.LinearLayout;
import android.widget.PopupWindow;
import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;
public class Cocos2dxActivity extends NativeActivity {
private AdView adView;
private PopupWindow popUp;
private static Cocos2dxActivity _activity;
private LinearLayout layout;
private LinearLayout mainLayout;
boolean adsinited = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Make your custom init here
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
_activity = this;
// Create our ad view here
adView = new AdView(this);
// you can get the ID from Admob
adView.setAdUnitId("a1531054c66348c");
adView.setAdSize(AdSize.BANNER);
}
public static void showAdPopup(){
_activity._showAdPopup();
}
public void _showAdPopup() {
if (adsinited) {
return;
}
if (adView != null) {
_activity.runOnUiThread(new Runnable() {
@Override
public void run() {
adsinited = true;
// Out popup window
popUp = new PopupWindow(_activity);
// This is the minimum size for AdMob, we need to set this
// in case our target device run at 320x480 resolution
// (Otherwise no ad will be shown, see the padding kill
// below)
popUp.setWidth(320);
popUp.setHeight(50);
popUp.setWindowLayoutMode(LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
popUp.setClippingEnabled(false);
layout = new LinearLayout(_activity);
mainLayout = new LinearLayout(_activity);
// The layout system for the PopupWindow will kill some
// pixels due to margins/paddings etc… (No way to remove
// it), so padd it to adjust
layout.setPadding(-5, -5, -5, -5);
MarginLayoutParams params = new MarginLayoutParams(
LayoutParams.WRAP_CONTENT,
LayoutParams.WRAP_CONTENT);
params.setMargins(0, 0, 0, 0);
layout.setOrientation(LinearLayout.VERTICAL);
layout.addView(adView, params);
popUp.setContentView(layout);
_activity.setContentView(mainLayout, params);
// you can get the TestDevice ID from the output of logcat .
AdRequest adRequest = new AdRequest.Builder()
.addTestDevice(
"CE7DCE5945F79BBF863872D5026787EFbuild")
.build();
// Enable this if your are testing AdMob, otherwise you'll
// risk to be banned!
_activity.adView.loadAd(adRequest);
// Show our popup window
popUp.showAtLocation(mainLayout, Gravity.BOTTOM, 0, 0);
popUp.update();
}
});
}
}
private class AdmobListener extends AdListener {
@Override
public void onAdClosed() {
super.onAdClosed();
}
@Override
public void onAdFailedToLoad(int errorCode) {
super.onAdFailedToLoad(errorCode);
}
@Override
public void onAdLeftApplication() {
super.onAdLeftApplication();
}
@Override
public void onAdLoaded() {
super.onAdLoaded();
}
@Override
public void onAdOpened() {
super.onAdOpened();
}
}
@Override
public void onDestroy() {
if (adView != null) {
adView.destroy();
}
super.onDestroy();
}
}
IMPORTANT : This is the clue. It is time to call our ads show. Before we proceed keep in mind this: Never call this function in an onCreate callback. You have to call this code after your whole native window is created. Personally I call it when my game (native, C) window is ready to be shown.
Create AdmobHelper.h and add the following code in it.
#ifndef __Admob_Helper_H_
#define __Admob_Helper_H_
class AdmobHelper
{
public:
static void showAds();
//if necessary, you can add other methods to control AdView(e.g. dismiss the AdView).
};
#endif //__INTERFACE_FACEBOOK_H_
Create AdmobHelper.cpp and add the following code in it.
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
#include "AdmobHelper.h"
#include "platform/android/jni/JniHelper.h"
#include <jni.h>
#include <android/log.h>
const char* NativeActivityClassName = "org/cocos2dx/cpp/Cocos2dxActivity";
void AdmobHelper::showAds(){
cocos2d::JniMethodInfo t;
if (cocos2d::JniHelper::getStaticMethodInfo(t
, NativeActivityClassName
, "showAdPopup"
, "()V"))
{
t.env->CallStaticVoidMethod(t.classID, t.methodID);
t.env->DeleteLocalRef(t.classID);
}
}
#endif
Finally,you just need to include AdmobHelper.h and call AdmobHelper::showAds() in C++ side.Then you can see the Ad.
Source Code
You can download the source code of the demo from:https://github.com/Ryeeeeee/AdmobDemoV3
And replace the corresponding files in your project.
References
http://www.dynadream.com/ddweb/index.php/Special_Blog?id=20
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, your post’s really helpful for me 
