How to check if mobile network is enabled/disabled

Question

I would like to know if the mobile network is enabled or disabled.

My application is designed to help the user when he receives a phone call, and to do this I need I

Answer 1

I finally found a solution. Apparently not all phones have this option:

Home > Menu > Settings > Wireless & networks > Mobile network (checkbox)

However, for those who do, this method will work:

/**
 * @return null if unconfirmed
 */
public Boolean isMobileDataEnabled(){
    Object connectivityService = getSystemService(CONNECTIVITY_SERVICE); 
    ConnectivityManager cm = (ConnectivityManager) connectivityService;

    try {
        Class c = Class.forName(cm.getClass().getName());
        Method m = c.getDeclaredMethod("getMobileDataEnabled");
        m.setAccessible(true);
        return (Boolean)m.invoke(cm);
    } catch (Exception e) {
        e.printStackTrace();
        return null;
    }
}