Button
02android:id="@+id/btn"
03android:text="获取IP"
04android:layout_width="fill_parent"
05android:layout_height="wrap_content"
06android:onClick="onclick"
07/>
08<EditText
09android:id="@+id/ip_txt"
10android:layout_width="fill_parent"
11android:layout_height="wrap_content"/>
12
13<EditText
14android:id="@+id/mac_txt"
15android:layout_width="fill_parent"
16android:layout_height="wrap_content"/>
//这里是权限
1 <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
2<uses-permission android:name="android.permission.INTERNET"></uses-permission>
//接下来就是正文
01 package com.wifi;
02
03 import java.net.InetAddress;
04 import java.net.NetworkInterface;
05 import java.net.SocketException;
06 import java.util.Enumeration;
07
08 import android.app.Activity;
09 import android.content.Context;
10 import android.net.wifi.WifiInfo;
11 import android.net.wifi.WifiManager;
12 import android.os.Bundle;
13 import android.util.Log;
14 import android.view.View;
15 import android.widget.Button;
16 import android.widget.EditText;
17 public class MainActivity extends Activity {
18public static String IP;//本机IP
19public static String MAC;//本机MAC
20
21Button btn=null;
22EditText ip_txt=null;
23EditText mac_txt=null;
24@Override
25public void onCreate(Bundle savedInstanceState) {
26super.onCreate(savedInstanceState);
27setContentView(R.layout.main);
28btn=(Button)findViewById(R.id.btn);
29ip_txt=(EditText)findViewById(R.id.ip_txt);
30mac_txt=(EditText)findViewById(R.id.mac_txt);
31
32}
33public void onclick(View v){
34switch (v.getId()) {
35case R.id.btn:
36IP = getLocalIpAddress();//获取本机IP
37MAC = getLocalMacAddress();//获取本机MAC
38ip_txt.setText(IP);
39mac_txt.setText(MAC);
40break;
41}
42}
43
44public String getLocalIpAddress() {
45try {
46for (Enumeration<NetworkInterface> en = NetworkInterface
47.getNetworkInterfaces(); en.hasMoreElements();) {
48NetworkInterface intf = en.nextElement();
49for (Enumeration<InetAddress> enumIpAddr = intf
50.getInetAddresses(); enumIpAddr.hasMoreElements();) {
51InetAddress inetAddress = enumIpAddr.nextElement();
52if (!inetAddress.isLoopbackAddress()) {
53return inetAddress.getHostAddress().toString();
54}
55}
56}
57} catch (SocketException ex) {
58Log.e("WifiPreference IpAddress", ex.toString());
59}
60return null;
61}
62
63public String getLocalMacAddress() {
64WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
65WifiInfo info = wifi.getConnectionInfo();
66return info.getMacAddress();
67}
68 }
