1 package com.way.util; 2  3 import android.content.Context; 4 import android.net.ConnectivityManager; 5 import android.net.NetworkInfo.State; 6  7 public class NetUtil { 8     public static final int NETWORN_NONE = 0; 9     public static final int NETWORN_WIFI = 1;10     public static final int NETWORN_MOBILE = 2;11 12     public static int getNetworkState(Context context) {13         ConnectivityManager connManager = (ConnectivityManager) context14                 .getSystemService(Context.CONNECTIVITY_SERVICE);15 16         // Wifi17         State state = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI)18                 .getState();19         if (state == State.CONNECTED || state == State.CONNECTING) {20             return NETWORN_WIFI;21         }22 23         // 3G24         state = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE)25                 .getState();26         if (state == State.CONNECTED || state == State.CONNECTING) {27             return NETWORN_MOBILE;28         }29         return NETWORN_NONE;30     }31 }