How to prevent cheating with Gamecih?

Question

Background

I\'ve had problems for quite a while now with players cheating in my android game. For a strict single-player game this wouldn\'t be a big is

Answer 1

try{
    ApplicationInfo info = getPackageManager().
            getApplicationInfo("com.cih.gamecih", 0 );
    return true;
} catch( PackageManager.NameNotFoundException e ){
    return false;
}

If this function returns true, don't even let the hacker enter Multiplayer mode, and prompt him to uninstall it.