An Android class for retrieving network reachability

Reachability.java

package my.app;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

public class Reachability
{
    /**
     * Connection Type Definitions.
     */
    public enum Connection {
        Wifi,
        Cellular,
        Unknown,
        None
    }

    /**
     * The Context we use to access
     * the Connectivity Service.
     */
    private Context context;

    /**
     * Initialize the Reachability Object using
     * a Context.
     *
     * @param context The context used to access
     *                the Connectivity Service.
     */
    public Reachability(Context context)
    {
        this.context = context;
    }

    /**
     * Check if the network is currently Reachable.
     *
     * @return boolean
     */
    public boolean networkReachable()
    {
        return this.getConnection() != Connection.None;
    }

    /**
     * Retrieve the current Connection type.
     *
     * @return Reachability.Connection
     */
    public Connection getConnection()
    {
        Connection connection = Connection.None;

        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        if (cm == null) {
            return Connection.None;
        }

        NetworkInfo[] netInfo = cm.getAllNetworkInfo();
        for (NetworkInfo ni : netInfo) {
            if ("WIFI".equalsIgnoreCase(ni.getTypeName())) {
                if (ni.isConnected())
                    connection = Connection.Wifi;
            } else if ("MOBILE".equalsIgnoreCase(ni.getTypeName())) {
                if (ni.isConnected())
                    connection = (
                        connection == Connection.None ||
                        connection == Connection.Unknown
                    )
                        ? Connection.Cellular
                        : connection;
            } else if (ni.isConnected()) {
                connection = (connection == Connection.None)
                        ? Connection.Unknown
                        : connection;
            }
        }

        return connection;
    }
}