Android获取手机IP和MAC地址

[android]代码库

//需要添加权限：
//<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
//<uses-permission android:name="android.permission.INTERNET"></uses-permission>



package exp.getipmac;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import android.app.Activity;
import android.content.Context;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
public class GetIPMAC extends Activity
{
    public static String hostip;             //本机IP
    public static String hostmac;            //本机MAC

    /** Called when the activity is first created. */
    @Override
    public void onCreate (Bundle savedInstanceState)
    {
        super.onCreate (savedInstanceState);
        setContentView (R.layout.main);
        TextView tv = (TextView) findViewById (R.id.hello);

        hostip = getLocalIpAddress();  //获取本机IP
        hostmac = getLocalMacAddress();//获取本机MAC
        /* 本机IP和MAC */
        tv.setText ("HostIP:" + hostip + "\nHostMAC:" + hostmac);
        /* 打印本机IP和MAC */
        if (hostip != null)
        {
            Log.d ("GetIPMAC", hostip);
        }
        else
        {
            Log.d ("GetIPMAC", "null");
        }
        Log.d ("GetIPMAC", hostmac);
    }

    public String getLocalIpAddress()
    {
        try
        {
            for (Enumeration<NetworkInterface> en = NetworkInterface
                                                    .getNetworkInterfaces(); en.hasMoreElements();)
            {
                NetworkInterface intf = en.nextElement();
                for (Enumeration<InetAddress> enumIpAddr = intf
                        .getInetAddresses(); enumIpAddr.hasMoreElements();)
                {
                    InetAddress inetAddress = enumIpAddr.nextElement();
                    if (!inetAddress.isLoopbackAddress() )
                    {
                        return inetAddress.getHostAddress().toString();
                    }
                }
            }
        }
        catch (SocketException ex)
        {
            Log.e ("WifiPreference IpAddress", ex.toString() );
        }
        return null;
    }

    public String getLocalMacAddress()
    {
        WifiManager wifi = (WifiManager) getSystemService (Context.WIFI_SERVICE);
        WifiInfo info = wifi.getConnectionInfo();
        return info.getMacAddress();
    }
}