一个小小的工具：获取当前手机的联网方式。

来源：互联网发布：mac彩妆深圳专柜地址编辑：程序博客网时间：2024/05/16 10:53

原文：http://www.cnblogs.com/meteoric_cry/p/4627075.html

一个小小的工具：获取当前手机的联网方式。好像原作者还处理了一些比较蛋疼的情况。

package cn.iautos.testapplication20170612;import android.content.Context;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.telephony.TelephonyManager;public class NetworkUtils {    public static String getNetTypeName(Context context) {        String strNetworkType = "";        NetworkInfo networkInfo = ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();        if (networkInfo != null && networkInfo.isAvailable() && networkInfo.isConnected()) {            if (networkInfo.getType() == ConnectivityManager.TYPE_WIFI) {                strNetworkType = "WIFI";            } else if (networkInfo.getType() == ConnectivityManager.TYPE_MOBILE) {                String _strSubTypeName = networkInfo.getSubtypeName();                // TD-SCDMA   networkType is 17                int networkType = networkInfo.getSubtype();                switch (networkType) {                    case TelephonyManager.NETWORK_TYPE_GPRS:                    case TelephonyManager.NETWORK_TYPE_EDGE:                    case TelephonyManager.NETWORK_TYPE_CDMA:                    case TelephonyManager.NETWORK_TYPE_1xRTT:                    case TelephonyManager.NETWORK_TYPE_IDEN: //api<8 : replace by 11                        strNetworkType = "2G";                        break;                    case TelephonyManager.NETWORK_TYPE_UMTS:                    case TelephonyManager.NETWORK_TYPE_EVDO_0:                    case TelephonyManager.NETWORK_TYPE_EVDO_A:                    case TelephonyManager.NETWORK_TYPE_HSDPA:                    case TelephonyManager.NETWORK_TYPE_HSUPA:                    case TelephonyManager.NETWORK_TYPE_HSPA:                    case TelephonyManager.NETWORK_TYPE_EVDO_B: //api<9 : replace by 14                    case TelephonyManager.NETWORK_TYPE_EHRPD:  //api<11 : replace by 12                    case TelephonyManager.NETWORK_TYPE_HSPAP:  //api<13 : replace by 15                        strNetworkType = "3G";                        break;                    case TelephonyManager.NETWORK_TYPE_LTE:    //api<11 : replace by 13                        strNetworkType = "4G";                        break;                    default:                        // http://baike.baidu.com/item/TD-SCDMA 中国移动 联通 电信 三种3G制式                        if (_strSubTypeName.equalsIgnoreCase("TD-SCDMA") || _strSubTypeName.equalsIgnoreCase("WCDMA") || _strSubTypeName.equalsIgnoreCase("CDMA2000")) {                            strNetworkType = "3G";                        } else {                            strNetworkType = _strSubTypeName;                        }                        break;                }            }        } else {            strNetworkType = "无网络";        }        return strNetworkType;    }}

配合以下代码可以动态监听网络连接的变化：

原文：http://blog.csdn.net/qq_32368129/article/details/54406861

package cn.iautos.testapplication20170612;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.net.ConnectivityManager;import android.util.Log;import android.widget.Toast;public class NetworkConnectChangedReceiver extends BroadcastReceiver {    @Override    public void onReceive(Context context, Intent intent) {    /*    if (WifiManager.WIFI_STATE_CHANGED_ACTION.equals(intent.getAction())) {// 监听wifi的打开与关闭，与wifi的连接无关            int wifiState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0);            Log.e("TAG", "wifiState:" + wifiState);            switch (wifiState) {                case WifiManager.WIFI_STATE_DISABLED:                    break;                case WifiManager.WIFI_STATE_DISABLING:                    break;            }        }        // 监听wifi的连接状态即是否连上了一个有效无线路由        if (WifiManager.NETWORK_STATE_CHANGED_ACTION.equals(intent.getAction())) {            Parcelable parcelableExtra = intent                    .getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);            if (null != parcelableExtra) {                // 获取联网状态的NetWorkInfo对象                NetworkInfo networkInfo = (NetworkInfo) parcelableExtra;                //获取的State对象则代表着连接成功与否等状态                NetworkInfo.State state = networkInfo.getState();                //判断网络是否已经连接                boolean isConnected = state == NetworkInfo.State.CONNECTED;                Log.e("TAG", "isConnected:" + isConnected);                if (isConnected) {                } else {                }            }        }*/        // 监听网络连接，包括wifi和移动数据的打开和关闭,以及连接上可用的连接都会接到监听        if (ConnectivityManager.CONNECTIVITY_ACTION.equals(intent.getAction())) {            String netTypeName = NetworkUtils.getNetTypeName(context);            Toast.makeText(context, netTypeName, Toast.LENGTH_SHORT).show();            Log.e("网络检查demo", netTypeName);                      /*  //获取联网状态的NetworkInfo对象            NetworkInfo info = intent                    .getParcelableExtra(ConnectivityManager.EXTRA_NETWORK_INFO);            if (info != null) {                //如果当前的网络连接成功并且网络连接可用                if (NetworkInfo.State.CONNECTED == info.getState() && info.isAvailable()) {                    if (info.getType() == ConnectivityManager.TYPE_WIFI) {                    } else if (info.getType() == ConnectivityManager.TYPE_MOBILE) {                    }                } else {                }            }*/        }    }}

注释中的代码是监听不同情况。在这里未采用原文的监听方式，而是将两个demo结合起来。

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