Android Wifi使用方法大全

在Android裡，所有的wifi操作都在android.net.wifi包裡，而常用的類也就只用幾個，對於一般的開發人員來說，常用的操作也是有限的，不需要刻意的去記，用的時候現查就ok了，下面是《Android應用開發揭秘》裡面關於wifi的範例，個人感覺還挺齊全，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 {     //定義WifiManager對象     private WifiManager mWifiManager;     //定義WifiInfo對象     private WifiInfo mWifiInfo;     //掃描出的網路連接列表     private List<ScanResult> mWifiList;     //網路連接列表     private List<WifiConfiguration> mWifiConfiguration;     //定義一個WifiLock     WifiLock mWifiLock;     //構造器     public  WifiAdmin(Context context)     {         //取得WifiManager對象         mWifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);         //取得WifiInfo對象         mWifiInfo = mWifiManager.getConnectionInfo();     }     //開啟WIFI     public void OpenWifi()     {         if (!mWifiManager.isWifiEnabled())         {             mWifiManager.setWifiEnabled(true);                       }     }     //關閉WIFI     public void CloseWifi()     {         if (!mWifiManager.isWifiEnabled())         {             mWifiManager.setWifiEnabled(false);          }     }     //鎖定WifiLock     public void AcquireWifiLock()     {         mWifiLock.acquire();     }     //解鎖WifiLock     public void ReleaseWifiLock()     {         //判斷時候鎖定         if (mWifiLock.isHeld())         {             mWifiLock.acquire();         }     }     //建立一個WifiLock     public void CreatWifiLock()     {         mWifiLock = mWifiManager.createWifiLock("Test");     }     //得到配置好的網路     public List<WifiConfiguration> GetConfiguration()     {         return mWifiConfiguration;     }     //指定配置好的網路進行串連     public void ConnectConfiguration(int index)     {         //索引大於配置好的網路索引返回         if(index > mWifiConfiguration.size())         {             return;         }         //串連配置好的指定ID的網路         mWifiManager.enableNetwork(mWifiConfiguration.get(index).networkId, true);     }     public void StartScan()     {         mWifiManager.startScan();         //得到掃描結果         mWifiList = mWifiManager.getScanResults();         //得到配置好的網路連接         mWifiConfiguration = mWifiManager.getConfiguredNetworks();     }     //得到網路列表     public List<ScanResult> GetWifiList()     {         return mWifiList;     }     //查看掃描結果     public StringBuilder LookUpScan()     {         StringBuilder stringBuilder = new StringBuilder();         for (int i = 0; i < mWifiList.size(); i++)         {             stringBuilder.append("Index_"+new Integer(i + 1).toString() + ":");             //將ScanResult資訊轉換成一個字串包             //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();     }     //得到存取點的BSSID     public String GetBSSID()     {         return (mWifiInfo == null) ? "NULL" : mWifiInfo.getBSSID();     }     //得到IP地址     public int GetIPAddress()     {         return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();     }     //得到串連的ID     public int GetNetworkId()     {         return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();     }     //得到WifiInfo的所有資訊包     public String GetWifiInfo()     {         return (mWifiInfo == null) ? "NULL" : mWifiInfo.toString();     }     //添加一個網路並串連     public void AddNetwork(WifiConfiguration wcg)     {         int wcgID = mWifiManager.addNetwork(wcg);          mWifiManager.enableNetwork(wcgID, true);      }     //斷開指定ID的網路     public void DisconnectWifi(int netId)     {         mWifiManager.disableNetwork(netId);         mWifiManager.disconnect();     } }

有了這些方法，我想一般的wifi操作大家都可以參考了。