AdMob Interstitial Cocos2d-x WP8 - windows-phone-8

Question

Can enyone tell me how to call AdMob Interstitial between scenes in my cocos2d-x game?
I have tried this http://robwirving.com/2014/07/21/calling-c-methods-c-winrt-components/ guide, but i don't know how to run it from cocos classes.
Is there any another ways, or some guides?

Answer 1

I've recently made it. You have to do few things. First of all create helper class, which will help you calling native function (I use this for all 3 platforms, but here's just windows phone):
NativeHelper.h:
#ifndef __NATIVE_HELPER_H_
#define __NATIVE_HELPER_H_
#include <string>
#include <functional>
#include "cocos2d.h"
using namespace std;
USING_NS_CC;
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
namespace cocos2d
{
public delegate void CSharpShowInterstitialDelegate();
public ref class WP8NativeEventHelper sealed
{
public:
void WP8NativeEventHelper::SetCSharpShowInterstitialDelegate(CSharpShowInterstitialDelegate^ delegate){
m_CSharpShowInterstitialDelegate = delegate;
}
void CallShowInterstitial();
private:
property static CSharpShowInterstitialDelegate^ m_CSharpShowInterstitialDelegate;
};
}
#endif
class NativeHelper
{
public:
static void showInterstitial(string adSdk);
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
WP8NativeEventHelper^ wp8helper;
#endif
//instance required only for setting callback
static NativeHelper* getInstance();
~NativeHelper()
{
instanceFlag = false;
}
private:
static bool instanceFlag;
static NativeHelper* instance;
NativeHelper() {};
};
#endif // __NATIVE_HELPER_H_
So. We have special C++/CX class Wp8NativeEventHelper, which can "talk" with C#. Here we store a delegate.
How it works:
C# is calling SetCSharpShowInterstitialDelegate and passes a delegate to it, which will be remembered in static property.
Then C++\CX can call it using CallShowInterstitial.
Now NativeHelperWP.cpp:
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WP8)
#ifndef __NATIVE_HELPER_WP_H_
#define __NATIVE_HELPER_WP_H_
#include "NativeHelper.h"
void WP8NativeEventHelper::CallShowInterstitial(){
if (m_CSharpShowInterstitialDelegate)
{
m_CSharpShowInterstitialDelegate->Invoke();
}
}
bool NativeHelper::instanceFlag = false;
NativeHelper* NativeHelper::instance = NULL;
NativeHelper* NativeHelper::getInstance()
{
if(!instanceFlag){
instance = new NativeHelper();
instanceFlag = true;
instance->wp8helper = ref new WP8NativeEventHelper();
}
return instance;
}
void NativeHelper::showInterstitial(){
NativeHelper::getInstance()->wp8helper->CallShowInterstitial();
}
#endif
#endif
Here is just an implementation of CallShowInterstitial. Also in NativeHelper::showInterstitial we're calling C++/CX, which later calls c#.
Now c# code (MainPage.xaml.cs):
outside namespace:
using GoogleAds;
inside class:
private InterstitialAd interstitialAd;
in constructor:
WP8NativeEventHelper helper = new WP8NativeEventHelper();
helper.SetCSharpShowInterstitialDelegate(showInterstitial);
and also create showInterstitial function:
public void showInterstitial() //we recreate interstitial each time, because otherwise it'll show only once, only new requests won't work
{
interstitialAd = new InterstitialAd("MY_AD_UNIT_ID");
AdRequest adRequest = new AdRequest();
#if DEBUG
// Enable test ads.
adRequest.ForceTesting = true;
#endif
interstitialAd.ReceivedAd += OnAdReceived;
interstitialAd.LoadAd(adRequest);
}
and finally OnAdReceived:
private void OnAdReceived(object sender, AdEventArgs e)
{
System.Diagnostics.Debug.WriteLine("Ad received successfully");
interstitialAd.ShowAd();
}
Follow this guide to setup admob: https://developers.google.com/mobile-ads-sdk/docs/admob/wp/quick-start
Now let's use this.
In HelloWorldScene.h add:
#include "NativeHelper.h"
In HelloWorldScene.cpp:
NativeHelper::showInterstitial();
The same way you can show/hide/change position of admob banner for example (however it's buggy so I'm using ad mediation).