android下获取无线wif信号、ssid、MAC等操作类

一个android下获取无线wif信号、ssid、MAC等操作的类。

WifiAdmin.java

package com.afu;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;import android.util.Log;public class WifiAdmin {    private final static String TAG = "WifiAdmin";    private StringBuffer mStringBuffer = new StringBuffer();    private List<ScanResult> listResult;    private ScanResult mScanResult;    // 定义WifiManager对象    private WifiManager mWifiManager;    // 定义WifiInfo对象    private WifiInfo mWifiInfo;    // 网络连接列表    private List<WifiConfiguration> mWifiConfiguration;    // 定义一个WifiLock    WifiLock mWifiLock;    /**     * 构造方法     */    public WifiAdmin(Context context) {        mWifiManager = (WifiManager) context                .getSystemService(Context.WIFI_SERVICE);        mWifiInfo = mWifiManager.getConnectionInfo();    }    /**     * 打开Wifi网卡     */    public void openNetCard() {        if (!mWifiManager.isWifiEnabled()) {            mWifiManager.setWifiEnabled(true);        }    }    /**     * 关闭Wifi网卡     */    public void closeNetCard() {        if (mWifiManager.isWifiEnabled()) {            mWifiManager.setWifiEnabled(false);        }    }    /**     * 检查当前Wifi网卡状态     */    public void checkNetCardState() {        if (mWifiManager.getWifiState() == 0) {            Log.i(TAG, "网卡正在关闭");        } else if (mWifiManager.getWifiState() == 1) {            Log.i(TAG, "网卡已经关闭");        } else if (mWifiManager.getWifiState() == 2) {            Log.i(TAG, "网卡正在打开");        } else if (mWifiManager.getWifiState() == 3) {            Log.i(TAG, "网卡已经打开");        } else {            Log.i(TAG, "没有获取到状态-_-");        }    }    /**     * 扫描周边网络     */    public void scan() {        mWifiManager.startScan();        listResult = mWifiManager.getScanResults();        if (listResult != null) {            Log.i(TAG, "当前区域存在无线网络，请查看扫描结果");        } else {            Log.i(TAG, "当前区域没有无线网络");        }    }    /**     * 得到扫描结果 获取无线信号列表     */    public String getScanResult() {        // 每次点击扫描之前清空上一次的扫描结果        if (mStringBuffer != null) {            mStringBuffer = new StringBuffer();        }        // 开始扫描网络        scan();        listResult = mWifiManager.getScanResults();        if (listResult != null) {            for (int i = 0; i < listResult.size(); i++) {                mScanResult = listResult.get(i);                mStringBuffer = mStringBuffer.append("NO.").append(i + 1)                        .append(" :").append(mScanResult.SSID).append("->")                        .append(mScanResult.BSSID).append("->")                        .append(mScanResult.capabilities).append("->")                        .append(mScanResult.frequency).append("->")                        .append(mScanResult.level).append("->")                        .append(mScanResult.describeContents()).append("\n\n");            }        }        Log.i(TAG, mStringBuffer.toString());        return mStringBuffer.toString();    }    /**     * 连接指定网络     */    public void connect() {            mWifiInfo = mWifiManager.getConnectionInfo();        if (mWifiInfo != null) {            Log.d("wifiInfo", mWifiInfo.toString());              Log.d("SSID",mWifiInfo.getSSID());          }    }    /**     * 断开当前连接的网络     */    public void disconnectWifi() {        int netId = getNetworkId();        mWifiManager.disableNetwork(netId);        mWifiManager.disconnect();        mWifiInfo = null;    }    /**     * 检查当前网络状态     *     * @return String     */    public void checkNetWorkState() {        if (mWifiInfo != null) {            Log.i(TAG, "网络正常工作");        } else {            Log.i(TAG, "网络已断开");        }    }    /**     * 得到连接的ID     */    public int getNetworkId() {        return (mWifiInfo == null) ? 0 : mWifiInfo.getNetworkId();    }    /**     * 得到IP地址     */    public int getIPAddress() {        return (mWifiInfo == null) ? 0 : mWifiInfo.getIpAddress();    }    // 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);    }    // 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 int addNetwork(WifiConfiguration wcg) {        int wcgID = mWifiManager.addNetwork(mWifiConfiguration.get(3));        mWifiManager.enableNetwork(wcgID, true);        return wcgID;    }}

调用方法：

WifiAdmin mWifiAdmin = new WifiAdmin(Main.this);String mScanResult = mWifiAdmin.getScanResult();scanResult.setText(mScanResult);

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