android获取热点主机ip和连接热点手机ip

其中定义WIFI AP的几个状态

public static final int WIFI_AP_STATE_DISABLING = 10;    public static final int WIFI_AP_STATE_DISABLED = 11;    public static final int WIFI_AP_STATE_ENABLING = 12;    public static final int WIFI_AP_STATE_ENABLED = 13;    public static final int WIFI_AP_STATE_FAILED = 14;

对应于WifiMangaer.java中对这几个状态的定义。

获取WIFI热点的状态：

public int getWifiApState(Context mContext) {        WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);          try {               Method method = wifiManager.getClass().getMethod("getWifiApState");               int i = (Integer) method.invoke(wifiManager);               Log.i(TAG,"wifi state:  " + i);               return i;           } catch (Exception e) {               Log.e(TAG,"Cannot get WiFi AP state" + e);               return WIFI_AP_STATE_FAILED;           }       }

判断Wifi热点是否可用：

private ArrayList<String> getConnectedHotIP() {      ArrayList<String> connectedIP = new ArrayList<String>();      try {          BufferedReader br = new BufferedReader(new FileReader(                  "/proc/net/arp"));          String line;          while ((line = br.readLine()) != null) {              String[] splitted = line.split(" +");              if (splitted != null && splitted.length >= 4) {                  String ip = splitted[0];                  connectedIP.add(ip);              }          }      } catch (Exception e) {          e.printStackTrace();      }      return connectedIP;  }  //输出链接到当前设备的IP地址  public void printHotIp() {      ArrayList<String> connectedIP = getConnectedHotIP();      StringBuilder resultList = new StringBuilder();      for (String ip : connectedIP) {          resultList.append(ip);          resultList.append("\n");      }      System.out.print(resultList);      Log.d(TAG,"---->>heww resultList="+resultList);  }

当然在应用中要添加访问WIFI设备的权限：

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

以上转载自
http://blog.csdn.net/netwalk/article/details/23183501

获取热点主机ip地址的代码：

WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);            DhcpInfo info=wifiManager.getDhcpInfo();            System.out.println(info.serverAddress);

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