Hey Merve,
I won't provide any specific Android code, but I will give you this link which provides you all you need to know about the Android push message payload: https://developer.android.com/google/gcm/adv.html#payload
Note the 4k limit. You likely won't run into the size limit, but the process is largely the same. Make sure you put a variable in the payload of your push message, then handle it as desired in your Android activity.
Hope this helps.
steve benedick
mobile software engineer
