Possible to use Google Analytics with Android build?

Question

Hello, I'm trying to set up Google Analytics with our Android build and am having a hard time getting it set up properly. I've downloaded the GoogleAnalytics.jar and placed it in Plugins/Android.

I'm trying to access functions contained in the .jar by using the JNI helper classes AndroidJavaClass and AndroidJavaHelper, but am having a little bit of trouble. How would I create a new Instance of a tracker?

What I'm trying to do using the helper classes to essentially do this:

 tracker = GoogleAnalyticsTracker.getInstance();
 tracker.start("UA-20274206-1", 10, this);

But I can't figure out the proper code on Unity's end. I've tried:

    AndroidJavaClass GATrackerClass = new AndroidJavaClass("com.google.android.apps.analytics.GoogleAnalyticsTracker"); 
    AndroidJavaObject tracker = GATrackerClass.CallStatic<AndroidJavaObject>("getInstance");

I get this error though:

 JNI: Unable to find method id for 'getInstance' (static)
 JNI: Init'd AndroidJavaObject with null ptr!

Any suggestions? Thanks in advance!

Answer 1

Answer by Mr.Z · Jan 07, 2013 at 10:33 PM

It most deffo is, not sure how tho, but you might want to check out this. Sorry I hope that helps.

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helios · Jan 08, 2013 at 03:03 PM 0

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Thanks, but I think that applies more for web tracking and not usage of Google's SD$$anonymous$$ within an Android build.

Answer 2

I have this part working at least

 AndroidJavaClass GoogleAnalyticsClass = new AndroidJavaClass("com.google.analytics.tracking.android.GoogleAnalytics");
 AndroidJavaClass cls_UnityPlayer = new AndroidJavaClass("com.unity3d.player.UnityPlayer");
             
             
            if(GoogleAnalyticsClass != null && cls_UnityPlayer != null)
            {
                 AndroidJavaObject obj_Activity = cls_UnityPlayer.GetStatic<AndroidJavaObject>("currentActivity");    
                
                if(obj_Activity != null)
                {
                    m_gaInstance = GoogleAnalyticsClass.CallStatic<AndroidJavaObject>("getInstance",obj_Activity);
                }
            }    
             
             
            if(m_gaInstance != null)
            {
                m_gaInstance.Call("setDebug",true);
                
                m_tracker = m_gaInstance.Call<AndroidJavaObject>("getTracker","UA-XXXXXX-1");        
            }
    }

Which gets me a valid tracker. I did have a few issues before with getting sendEvent to work, but I have resolved those now, key thing was checking the jar file from google in eclipse and looking at the bytecode breakdown for the tracker class to make sure the method signature types matched exactly. In my case it was not matching the Long type, I was passing a long primitive data type, which has a method signature of J as opposed to the class java.lang.Long. So the send event call should look like.

 long lval = val;        
 AndroidJavaObject jo = new AndroidJavaObject("java.lang.Long", lval); 
 m_tracker.Call("sendEvent", category.ToString(), action,label,jo);

Where action and label are strings and val is an int.

Cheers,

Dave

Answer 3

Answer by oferei · Jul 18, 2013 at 03:57 PM

I got the Android SDK to work. I wrote a small plugin and connected it to Unity. Read about it in this post I wrote.

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Possible to use Google Analytics with Android build?

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