gistfile1.java

*@return boolean return true if the application can access the internet
*/ 
private boolean haveInternet(){ 
     NetworkInfo info=(ConnectivityManager)getSystemService(Context.CONNECTIVITY_SERVICE).getActiveNetworkInfo(); 
     if(info==null || !info.isConnected()){ 
         return false; 
     } 
     if(info.isRoaming()){ 
         //here is the roaming option you can change it if you want to disable internet while roaming, just return false 
         return true; 
     } 
     return true; 
}