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<Button
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android:id="@+id/btn"
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android:text="获取IP"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"
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android:onClick="onclick"
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/>
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<EditText
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android:id="@+id/ip_txt"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"/>
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<EditText
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android:id="@+id/mac_txt"
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android:layout_width="fill_parent"
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android:layout_height="wrap_content"/>
//这里是权限
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<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
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<uses-permission android:name="android.permission.INTERNET"></uses-permission>
//接下来就是正文
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package com.wifi;
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import java.net.InetAddress;
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import java.net.NetworkInterface;
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import java.net.SocketException;
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import java.util.Enumeration;
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import android.app.Activity;
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import android.content.Context;
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import android.net.wifi.WifiInfo;
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import android.net.wifi.WifiManager;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import android.widget.Button;
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import android.widget.EditText;
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public class MainActivity extends Activity {
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public static String IP;//本机IP
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public static String MAC;//本机MAC
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Button btn=null;
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EditText ip_txt=null;
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EditText mac_txt=null;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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btn=(Button)findViewById(R.id.btn);
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ip_txt=(EditText)findViewById(R.id.ip_txt);
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mac_txt=(EditText)findViewById(R.id.mac_txt);
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}
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public void onclick(View v){
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switch (v.getId()) {
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case R.id.btn:
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IP = getLocalIpAddress();//获取本机IP
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MAC = getLocalMacAddress();//获取本机MAC
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ip_txt.setText(IP);
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mac_txt.setText(MAC);
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break;
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}
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}
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public String getLocalIpAddress() {
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try {
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for (Enumeration<NetworkInterface> en = NetworkInterface
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.getNetworkInterfaces(); en.hasMoreElements();) {
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NetworkInterface intf = en.nextElement();
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for (Enumeration<InetAddress> enumIpAddr = intf
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.getInetAddresses(); enumIpAddr.hasMoreElements();) {
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InetAddress inetAddress = enumIpAddr.nextElement();
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if (!inetAddress.isLoopbackAddress()) {
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return inetAddress.getHostAddress().toString();
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}
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}
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}
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} catch (SocketException ex) {
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Log.e("WifiPreference IpAddress", ex.toString());
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}
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return null;
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}
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public String getLocalMacAddress() {
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WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
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WifiInfo info = wifi.getConnectionInfo();
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return info.getMacAddress();
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}
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}
