android 判断是wifi还是4g网络，androidwifi,package com.

android 判断是wifi还是4g网络，androidwifi,package com.

package com.chengxinet.bobo.utils;import android.content.Context;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.telephony.TelephonyManager;/** * Created by Administrator on 2016/1/7. */public class NetworkUtils {    public static boolean isNetworkAvailable(Context c) {        Context context = c.getApplicationContext();        // 获取手机所有连接管理对象（包括对wi-fi,net等连接的管理）        ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);        if (connectivityManager == null) {            return false;        } else {            // 获取NetworkInfo对象            NetworkInfo[] networkInfo = connectivityManager.getAllNetworkInfo();            if (networkInfo != null && networkInfo.length > 0) {                for (NetworkInfo aNetworkInfo : networkInfo) {//                    System.out.println(i + "===状态===" + networkInfo[i].getState());//                    System.out.println(i + "===类型===" + networkInfo[i].getTypeName());                    // 判断当前网络状态是否为连接状态                    if (aNetworkInfo.getState() == NetworkInfo.State.CONNECTED) {                        return true;                    }                }            }        }        return false;    }    /**     * 判断WIFI是否打开     * @param context     * @return     */    public static boolean isWifiEnabled(Context context) {        ConnectivityManager mgrConn = (ConnectivityManager) context                .getSystemService(Context.CONNECTIVITY_SERVICE);        TelephonyManager mgrTel = (TelephonyManager) context                .getSystemService(Context.TELEPHONY_SERVICE);        return ((mgrConn.getActiveNetworkInfo() != null && mgrConn                .getActiveNetworkInfo().getState() == NetworkInfo.State.CONNECTED) || mgrTel                .getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS);    }    /**     * 判断是否是3G网络     * @param context     * @return     */    public static boolean is3rd(Context context) {        ConnectivityManager cm = (ConnectivityManager) context                .getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo networkINfo = cm.getActiveNetworkInfo();        if (networkINfo != null                && networkINfo.getType() == ConnectivityManager.TYPE_MOBILE) {            return true;        }        return false;    }    /**     * 判断是wifi还是3g网络     * @param context     * @return     */    public static boolean isWifi(Context context) {        ConnectivityManager cm = (ConnectivityManager) context                .getSystemService(Context.CONNECTIVITY_SERVICE);        NetworkInfo networkINfo = cm.getActiveNetworkInfo();        if (networkINfo != null                && networkINfo.getType() == ConnectivityManager.TYPE_WIFI) {            return true;        }        return false;    }}