/*
* Created by LuaView.
* Copyright (c) 2017, Alibaba Group. All rights reserved.
*
* This source code is licensed under the MIT.
* For the full copyright and license information,please view the LICENSE file in the root directory of this source tree.
*/
package com.taobao.luaview.util;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;
import com.taobao.luaview.receiver.ConnectionStateChangeBroadcastReceiver;
/**
* Network Util
*
* @author song
*/
public class NetworkUtil {
private static final String TAG = "NetworkUtil";
//ConnectionChangeListener
private static ConnectionStateChangeBroadcastReceiver sConnectionBroadcastReceiver;
/**
* 网络类型
* GPRS 2G(2.5) General Packet Radia Service 114kbps
* EDGE 2G(2.75G) Enhanced Data Rate for GSM Evolution 384kbps
* CDMA 2G 电信 Code Division Multiple Access 码分多址
* IDEN 2G Integrated Dispatch Enhanced Networks 集成数字增强型网络 （属于2G，来自维基百科）
* 1xRTT 2G CDMA2000 1xRTT (RTT - 无线电传输技术) 144kbps 2G的过渡,
* UMTS 3G WCDMA 联通3G Universal Mobile Telecommunication System 完整的3G移动通信技术标准
* EVDO_0 3G (EVDO 全程 CDMA2000 1xEV-DO) Evolution - Data Only (Data Optimized) 153.6kps - 2.4mbps 属于3G
* EVDO_A 3G 1.8mbps - 3.1mbps 属于3G过渡，3.5G
* HSPA 3G (分HSDPA,HSUPA) High Speed Packet Access
* EVDO_B 3G EV-DO Rev.B 14.7Mbps 下行 3.5G
* EHRPD 3G CDMA2000向LTE 4G的中间产物 Evolved High Rate Packet Data HRPD的升级
* HSPAP 3G HSPAP 比 HSDPA 快些
* HSUPA 3.5G High Speed Uplink Packet Access 高速上行链路分组接入 1.4 - 5.8 mbps
* HSDPA 3.5G 高速下行分组接入 3.5G WCDMA High Speed Downlink Packet Access 14.4mbps
* LTE 4G Long Term Evolution FDD-LTE 和 TDD-LTE , 3G过渡，升级版 LTE Advanced 才是4G
*/
public enum NetworkType {
NETWORK_NONE("none"), NETWORK_2G("2g"), NETWORK_3G("3g"), NETWORK_4G("4g"), NETWORK_WIFI("wifi"), NETWORK_UNKNOWN("unknown");
String type;
NetworkType(String type) {
this.type = type;
}
public String getType() {
return type;
}
}
/**
* 注册ConnectionChangeListener
*
* @param context
*/
public static synchronized void registerConnectionChangeListener(Context context, ConnectionStateChangeBroadcastReceiver.OnConnectionChangeListener listener) {
if (context != null) {
if (sConnectionBroadcastReceiver == null) {
sConnectionBroadcastReceiver = new ConnectionStateChangeBroadcastReceiver();
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_SHUTDOWN);
filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
try {
context.getApplicationContext().registerReceiver(sConnectionBroadcastReceiver, filter);
} catch (Exception e) {
e.printStackTrace();
}
}
sConnectionBroadcastReceiver.addOnConnectionChangeListener(listener);
}
}
/**
* 反注册ConnectionChangeListener
*
* @param context
*/
public static synchronized void unregisterConnectionChangeListener(Context context, ConnectionStateChangeBroadcastReceiver.OnConnectionChangeListener listener) {
if (context != null && sConnectionBroadcastReceiver != null) {
try {
sConnectionBroadcastReceiver.removeOnConnectionChangeListener(listener);
if (sConnectionBroadcastReceiver.getListenerSize() == 0) {
context.getApplicationContext().unregisterReceiver(sConnectionBroadcastReceiver);
sConnectionBroadcastReceiver = null;
}
} catch (Exception e) {//保护
e.printStackTrace();
}
}
}
/**
* 得到当前网络类型字符串
*
* @return
*/
public static synchronized String getCurrentTypeStr(Context context) {
final NetworkType type = getCurrentType(context);
return type.getType();
}
/**
* 得到当前网络类型
*
* @return
*/
public static NetworkType getCurrentType(Context context) {
if (!isNetWorkAvailable(context)) {
return NetworkType.NETWORK_NONE;
}
if (isWifi(context)) {
return NetworkType.NETWORK_WIFI;
}
TelephonyManager tm = null;
try {
tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
} catch (Exception e) {
LogUtil.e(TAG, e);
}
if (tm == null) {
return NetworkType.NETWORK_NONE;
}
int type = tm.getNetworkType();
switch (type) {
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:
return NetworkType.NETWORK_2G;
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:
case TelephonyManager.NETWORK_TYPE_EHRPD:
case TelephonyManager.NETWORK_TYPE_HSPAP:
return NetworkType.NETWORK_3G;
case TelephonyManager.NETWORK_TYPE_LTE:
return NetworkType.NETWORK_4G;
default:
return NetworkType.NETWORK_UNKNOWN;
}
}
/**
* 网络是否可用
*
* @return
* @date 2012-11-20下午1:55:23
*/
public static boolean isNetWorkAvailable(Context context) {
boolean isAvailable = false;
try {
ConnectivityManager cm = getConnectivityManager(context);
if (cm != null) {
NetworkInfo info = cm.getActiveNetworkInfo();
if (info != null) {
isAvailable = info.isAvailable();
}
}
} catch (Exception e) {
}
return isAvailable;
}
/**
* 网络是否有效，可传输数据(注意Available仅仅是打开，有网络，不一定连接成功)，
*
* @return
* @date 2014-1-13
*/
public static boolean isNetworkConnected(Context context) {
boolean isConnected = false;
try {
ConnectivityManager cm = getConnectivityManager(context);
if (cm != null) {
NetworkInfo info = cm.getActiveNetworkInfo();
if (info != null) {
isConnected = info.isAvailable() && info.isConnected();
}
}
} catch (Exception e) {
}
return isConnected;
}
/**
* 判断是否是wifi网络
*
* @return
*/
public static boolean isWifi(Context context) {
ConnectivityManager cm = getConnectivityManager(context);
if (cm != null) {
NetworkInfo ni = cm.getActiveNetworkInfo();
if (ni != null && ni.getTypeName().equals("WIFI")) {
return true;
}
}
return false;
}
//----------------------------private methods--------------------------
private static ConnectivityManager getConnectivityManager(Context context) {
ConnectivityManager cm = null;
try {
cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
} catch (Exception e) {
}
return cm;
}
}