判断网络的工具类

package com.lbp.demo9.util;import android.content.Context;import android.net.ConnectivityManager;import android.net.NetworkInfo;/** * Created by Administrator on 2017/11/15 0015. */public class GetNetUtils {    public static int getnet(Context ctx){        int typenet=-1;        ConnectivityManager service = (ConnectivityManager) ctx.getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo info = service.getActiveNetworkInfo();        if(info==null){            return typenet;        }        int i = info.getType();        if(i==ConnectivityManager.TYPE_MOBILE){            typenet=2;        }        else if(i==ConnectivityManager.TYPE_WIFI){            typenet=1;        }        return typenet;    }}