2013.11.28 ——— android 网络3g wifi切换
16lz
2021-01-23
2013.11.28 ——— android 网络3g wifi切换
BroadcastReceiver
NetChangeFilter
MainActivity
测试如下:
1、wifi 3G都连着 断掉wifi
启动程序
11-28 10:56:41.823: I/System.out(819): ======================================
11-28 10:56:41.823: I/System.out(819): same===============WIFI
断掉wifi
11-28 10:57:28.819: I/System.out(819): ======================================
11-28 10:57:28.819: I/System.out(819): wifi ————> null
11-28 10:57:34.354: I/System.out(819): ======================================
11-28 10:57:34.354: I/System.out(819): null ————> mobile
2、3G连着,打开wifi
启动程序
11-28 10:58:03.543: I/System.out(819): ======================================
11-28 10:58:03.553: I/System.out(819): same===============mobile
打开wifi
11-28 10:58:25.624: I/System.out(819): ======================================
11-28 10:58:25.624: I/System.out(819): mobile ————> wifi
11-28 10:58:26.775: I/System.out(819): ======================================
11-28 10:58:26.775: I/System.out(819): same===============WIFI
11-28 10:58:26.785: I/System.out(819): ======================================
11-28 10:58:26.785: I/System.out(819): same===============WIFI
3、wifi连着,断开wifi 打开3G
11-28 10:59:51.448: I/System.out(819): ======================================
11-28 10:59:51.448: I/System.out(819): same===============WIFI
断开wifi 同时打开3G
11-28 11:00:20.536: I/System.out(819): ======================================
11-28 11:00:20.536: I/System.out(819): wifi ————> null
11-28 11:00:26.022: I/System.out(819): ======================================
11-28 11:00:26.022: I/System.out(819): null ————> mobile
3、3G连着,断开3G 打开wifi
启动程序
11-28 11:01:32.797: I/System.out(819): ======================================
11-28 11:01:32.797: I/System.out(819): same===============mobile
断开3G 打开wifi
11-28 11:01:49.463: I/System.out(819): ======================================
11-28 11:01:49.473: I/System.out(819): mobile ————> null
11-28 11:01:57.871: I/System.out(819): ======================================
11-28 11:01:57.871: I/System.out(819): null ————> wifi
由上可见:
wifi——>3G 接收到2个广播
1、wifi ————> null 断开wifi
2、null ————> mobile 连接3G
3G——>Wifi 接收到了3个广播
1、mobile ————> wifi 连接到wifi
2、same===============WIFI 断开3G
3、same===============WIFI 连接wifi
BroadcastReceiver
package com.example.testunicom;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.IntentFilter;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.net.wifi.WifiManager;public class NetCheckReceiver{ BaseBroadcast mReceiver; Context mContext; NetChangeFilter mFilter; NetCheckReceiver(Context context){ this.mFilter = new NetChangeFilter(context); } public void register(Context context){ mReceiver = new BaseBroadcast(); IntentFilter filter = new IntentFilter(); filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION); mContext = context; mContext.registerReceiver(mReceiver, filter); } public void unRegister(){ mContext.unregisterReceiver(mReceiver); } private class BaseBroadcast extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (action.equals(ConnectivityManager.CONNECTIVITY_ACTION)) {// 网络连接 System.out.println("======================================"); mFilter.netChange(context); } } }}
NetChangeFilter
package com.example.testunicom;import android.content.Context;import android.net.ConnectivityManager;import android.net.NetworkInfo;public class NetChangeFilter { private NetworkInfo mOldNet; NetChangeFilter(Context context){ this.mOldNet = UtilUnicom.getNetWorkInfo(context); } public void netChange(Context context){ NetworkInfo tNet = UtilUnicom.getNetWorkInfo(context); if(mOldNet==null){ if(tNet==null){ System.out.println("null ————> null"); return; } if(tNet.getType()==ConnectivityManager.TYPE_MOBILE){ System.out.println("null ————> mobile"); }else if(tNet.getType() == ConnectivityManager.TYPE_WIFI){ System.out.println("null ————> wifi"); }else{ System.out.println("null ————> " + tNet.getTypeName()); } }else { if(tNet==null){ if(mOldNet.getType()==ConnectivityManager.TYPE_MOBILE){ System.out.println("mobile ————> null"); }else if(mOldNet.getType() == ConnectivityManager.TYPE_WIFI){ System.out.println("wifi ————> null"); }else{ System.out.println(mOldNet.getTypeName() + " ————> null"); } }else{ int tOld = mOldNet.getType(); int tNew = tNet.getType(); if(tOld!=tNew){ if(tOld==ConnectivityManager.TYPE_MOBILE && tNew==ConnectivityManager.TYPE_WIFI){ System.out.println("mobile ————> wifi"); }else if(tOld==ConnectivityManager.TYPE_WIFI && tNew==ConnectivityManager.TYPE_MOBILE){ System.out.println("wifi ————> mobile"); }else{ System.out.println(tOld + " ————> " + tNew); } }else{ System.out.println("same===============" + mOldNet.getTypeName()); } } } mOldNet = tNet; } }
MainActivity
@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mContext = this; mNetReceiver = new NetCheckReceiver(mContext); mNetReceiver.register(mContext); }@Override protected void onDestroy() { super.onDestroy(); mNetReceiver.unRegister(); }
测试如下:
1、wifi 3G都连着 断掉wifi
启动程序
11-28 10:56:41.823: I/System.out(819): ======================================
11-28 10:56:41.823: I/System.out(819): same===============WIFI
断掉wifi
11-28 10:57:28.819: I/System.out(819): ======================================
11-28 10:57:28.819: I/System.out(819): wifi ————> null
11-28 10:57:34.354: I/System.out(819): ======================================
11-28 10:57:34.354: I/System.out(819): null ————> mobile
2、3G连着,打开wifi
启动程序
11-28 10:58:03.543: I/System.out(819): ======================================
11-28 10:58:03.553: I/System.out(819): same===============mobile
打开wifi
11-28 10:58:25.624: I/System.out(819): ======================================
11-28 10:58:25.624: I/System.out(819): mobile ————> wifi
11-28 10:58:26.775: I/System.out(819): ======================================
11-28 10:58:26.775: I/System.out(819): same===============WIFI
11-28 10:58:26.785: I/System.out(819): ======================================
11-28 10:58:26.785: I/System.out(819): same===============WIFI
3、wifi连着,断开wifi 打开3G
11-28 10:59:51.448: I/System.out(819): ======================================
11-28 10:59:51.448: I/System.out(819): same===============WIFI
断开wifi 同时打开3G
11-28 11:00:20.536: I/System.out(819): ======================================
11-28 11:00:20.536: I/System.out(819): wifi ————> null
11-28 11:00:26.022: I/System.out(819): ======================================
11-28 11:00:26.022: I/System.out(819): null ————> mobile
3、3G连着,断开3G 打开wifi
启动程序
11-28 11:01:32.797: I/System.out(819): ======================================
11-28 11:01:32.797: I/System.out(819): same===============mobile
断开3G 打开wifi
11-28 11:01:49.463: I/System.out(819): ======================================
11-28 11:01:49.473: I/System.out(819): mobile ————> null
11-28 11:01:57.871: I/System.out(819): ======================================
11-28 11:01:57.871: I/System.out(819): null ————> wifi
由上可见:
wifi——>3G 接收到2个广播
1、wifi ————> null 断开wifi
2、null ————> mobile 连接3G
3G——>Wifi 接收到了3个广播
1、mobile ————> wifi 连接到wifi
2、same===============WIFI 断开3G
3、same===============WIFI 连接wifi
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