Android Wifi方法大全

先需要强调一点的是wifi只能在真机上测试!

在Android里,所有的wifi操作都在android.net.wifi包里,而常用的类也就只用几个,对于一般的开发人员来说,常用的操作也是有限的,不需要刻意的去记,用的时候现查就ok了,下面是《Android应用开发揭秘》里面关于wifi的范例,个人感觉还挺齐全,跟大家分享一下!

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package com.yarin.android.Examples_08_08;  

 

import java.util.List;   

import android.content.Context;   

import android.net.wifi.ScanResult;   

import android.net.wifi.WifiConfiguration;   

import android.net.wifi.WifiInfo;   

import android.net.wifi.WifiManager;   

import android.net.wifi.WifiManager.WifiLock;  

 

public class WifiAdmin  

 

{  

 

    //定义WifiManager对象  

     private WifiManager mWifiManager;  

     //定义WifiInfo对象  

     private WifiInfo mWifiInfo;  

     //扫描出的网络连接列表  

     private List<ScanResult> mWifiList;  

     //网络连接列表   

    private List<WifiConfiguration> mWifiConfiguration;  

     //定义一个WifiLock   

    WifiLock mWifiLock;   

    //构造器   

    public  WifiAdmin(Context context)  

 

    {  

 

        //取得WifiManager对象  

         mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);   

        //取得WifiInfo对象   

        mWifiInfo = mWifiManager.getConnectionInfo();  

     }  

 

    //打开WIFI   

    public void OpenWifi()  

 

    {  

 

        if (!mWifiManager.isWifiEnabled())   

        {  

             mWifiManager.setWifiEnabled(true);  

          }  

     }  

 

    //关闭WIFI   

    public void CloseWifi()  

 

    {   

        if (!mWifiManager.isWifiEnabled())  

 

        {   

            mWifiManager.setWifiEnabled(false);    

        }   

    }  

 

    //锁定WifiLock   

    public void AcquireWifiLock()  

 

    {   

        mWifiLock.acquire();   

    }  

 

    //解锁WifiLock   

    public void ReleaseWifiLock()  

 

    {  

 

        //判断时候锁定  

         if (mWifiLock.isHeld())  

 

        {   

            mWifiLock.acquire();   

        }  

     }  

 

    //创建一个WifiLock   

    public void CreatWifiLock()  

 

    {   

        mWifiLock = mWifiManager.createWifiLock("Test");   

    }  

 

    //得到配置好的网络  

 

    public List<WifiConfiguration> GetConfiguration()  

 

    {   

        return mWifiConfiguration;   

    }  

 

    //指定配置好的网络进行连接   

    public void ConnectConfiguration(int index)  

 

    {   

        //索引大于配置好的网络索引返回   

        if(index > mWifiConfiguration.size())  

 

        {  

             return;   

        }  

        //连接配置好的指定ID的网络  

 

        mWifiManager.enableNetwork(mWifiConfiguration.get(index).networkId, true);  

    }  

 

    public void StartScan()  

 

    {  

        mWifiManager.startScan();  

         //得到扫描结果  

         mWifiList = mWifiManager.getScanResults();  

         //得到配置好的网络连接  

         mWifiConfiguration = mWifiManager.getConfiguredNetworks();  

 

    }   

    //得到网络列表  

 

    public List<ScanResult> GetWifiList()  

 

    {   

        return mWifiList;   

    }  

 

    //查看扫描结果  

 

    public StringBuilder LookUpScan()  

 

    {  

 

        StringBuilder stringBuilder = new StringBuilder();   

        for (int i = 0; i < mWifiList.size(); i++)  

 

        {  

 

            stringBuilder.append("Index_"+new Integer(i + 1).toString() + ":");  

            //将ScanResult信息转换成一个字符串包   

            //其中把包括:BSSID、SSID、capabilities、frequency、level   

            stringBuilder.append((mWifiList.get(i)).toString());   

            stringBuilder.append("\n");  

         }  

 

        return stringBuilder;   

    }  

 

    //得到MAC地址  

 

    public String GetMacAddress()  

 

    {   

        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getMacAddress();   

    }  

 

    //得到接入点的BSSID  

 

    public String GetBSSID()  

 

    {   

        return (mWifiInfo == null) ? "NULL" : mWifiInfo.getBSSID();   

    }  

 

    //得到IP地址  

 

    public int GetIPAddress()  

 

    {  

         return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();  

     }  

 

    //得到连接的ID  

 

    public int GetNetworkId()  

 

    {   

        return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();  

    }  

 

    //得到WifiInfo的所有信息包  

 

    public String GetWifiInfo()  

 

    {  

         return (mWifiInfo == null) ? "NULL" : mWifiInfo.toString();   

    }  

 

    //添加一个网络并连接   

    public void AddNetwork(WifiConfiguration wcg)  

 

    {   

        int wcgID = mWifiManager.addNetwork(wcg);    

        mWifiManager.enableNetwork(wcgID, true);   

 

    }  

 

    //断开指定ID的网络  

 

    public void DisconnectWifi(int netId)  

 

    {  

        mWifiManager.disableNetwork(netId);   

        mWifiManager.disconnect();  

 

    }  

 

}

 

 

 

 

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