Android Studio WiFi 之 获取 WiFi 名称、IP、Mac
Android 获取连接的WIFI 的一些数据（后期封装成aar 包给Unity 调用）
封装成AAR包，获取 Android 7.0 以上的 手机 mac 地址
一、Android 代码
import android.app.Activity;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.text.format.Formatter;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import static android.content.Context.WIFI_SERVICE;
public class WifiMgr {
/*
*获取Mac地址
*
* android 7.0 以上使用*/
public static String getMacAddress() {
String strMacAddr = null;
try {
// 获得IpD地址
InetAddress ip = getLocalInetAddress();
byte[] b = NetworkInterface.getByInetAddress(ip)
.getHardwareAddress();
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < b.length; i++) {
if (i != 0) {
buffer.append(':');
}
String str = Integer.toHexString(b[i] & 0xFF);
buffer.append(str.length() == 1 ? 0 + str : str);
}
strMacAddr = buffer.toString().toUpperCase();
} catch (Exception e) {
}
return strMacAddr;
}
/**
* 获取移动设备本地IP
*
* @return
*/
private static InetAddress getLocalInetAddress() {
InetAddress ip = null;
try {
// 列举
Enumeration en_netInterface = NetworkInterface
.getNetworkInterfaces();
while (en_netInterface.hasMoreElements()) {// 是否还有元素
NetworkInterface ni = (NetworkInterface) en_netInterface
.nextElement();// 得到下一个元素
Enumeration en_ip = ni.getInetAddresses();// 得到一个ip地址的列举
while (en_ip.hasMoreElements()) {
ip = en_ip.nextElement();
if (!ip.isLoopbackAddress()
&& ip.getHostAddress().indexOf(":") == -1)
break;
else
ip = null;
}
if (ip != null) {
break;
}
}
} catch (SocketException e) {
e.printStackTrace();
}
return ip;
}
二、AndroidMainifest.xml 添加权限
三、Unity 中调用
using UnityEngine;
///
/// 通过IP，获取机器Mac地址
///
public class GetWifiData
{
// 安卓的接口文档
private AndroidJavaObject _androidJavaObject;
public AndroidJavaObject mAndroidJavaObject {
get {
if (_androidJavaObject != null) {
_androidJavaObject = new AndroidJavaObject("com.wifimacforarrow.pacificfuture.wifidataforarrow.WifiMgr");
}
return _androidJavaObject;
}
}
///
/// 构造函数
///
public GetWifiData() {
_androidJavaObject = new AndroidJavaObject("com.wifimacforarrow.pacificfuture.wifidataforarrow.WifiMgr");
}
///
/// 获取设别的 Mac 地址
///
/// ("getMacAddress");
#endif
}
}
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Android Studio WiFi 之 获取 WiFi 名称、IP、Mac（Android 7.0）
注意添加相关权限：
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.text.format.Formatter;
import android.widget.TextView;
import java.net.NetworkInterface;
import java.net.SocketException;
public class MainActivity extends AppCompatActivity {
private TextView tv;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 获取 textView 组件，把结果显示在UI上
tv = findViewById(R.id.tv);
tv.setText("ip "+getWifiIp() + " " +getWiFiName()+ " " +getWifiMacAddress());
}
/*
* 获取 WIFI 的名称
* */
public String getWiFiName() {
WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
if (wm != null) {
WifiInfo winfo = wm.getConnectionInfo();
if (winfo != null) {
String s = winfo.getSSID();
if (s.length() > 2 && s.charAt(0) == '"' && s.charAt(s.length() - 1) == '"') {
return s.substring(1, s.length() - 1);
}
}
}
return "Wifi 未获取到";
}
/*
* 获取 WiFi 的 IP 地址
* */
public String getWifiIp() {
Context myContext = getApplicationContext();
if (myContext == null) {
throw new NullPointerException("上下文 context is null");
}
WifiManager wifiMgr = (WifiManager) myContext.getSystemService(Context.WIFI_SERVICE);
if (isWifiEnabled()) {
int ipAsInt = wifiMgr.getConnectionInfo().getIpAddress();
String ip = Formatter.formatIpAddress(ipAsInt);
if (ipAsInt == 0) {
return "未能获取到IP地址";
} else {
return ip;
}
} else {
return "WiFi 未连接";
}
}
/*
* 判断当前 WIFI 是否连接
* */
public boolean isWifiEnabled() {
Context myContext = getApplicationContext();
if (myContext == null) {
throw new NullPointerException("上下文 context is null");
}
WifiManager wifiMgr = (WifiManager) myContext.getSystemService(Context.WIFI_SERVICE);
if (wifiMgr.getWifiState() == WifiManager.WIFI_STATE_ENABLED) {
ConnectivityManager connManager = (ConnectivityManager) myContext
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo wifiInfo = connManager
.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
return wifiInfo.isConnected();
} else {
return false;
}
}
/*
* 获取 WiFi 的 Mac 地址
*
* */
public String getWifiMacAddress(){
Context myContext = getApplicationContext();
if (myContext == null) {
throw new NullPointerException("上下文 context is null");
}
WifiManager wifiMgr = (WifiManager) myContext.getSystemService(Context.WIFI_SERVICE);
if (isWifiEnabled()) {
// 该接口只能获得 02:00:00:00:00:02
//String macAddress = wifiMgr.getConnectionInfo().getMacAddress();
String macAddress = null;
StringBuffer buf = new StringBuffer();
NetworkInterface networkInterface = null;
try {
networkInterface = NetworkInterface.getByName("eth1");
if (networkInterface == null) {
networkInterface = NetworkInterface.getByName("wlan0");
}
if (networkInterface == null) {
return "02:00:00:00:00:02";
}
byte[] addr = networkInterface.getHardwareAddress();
for (byte b : addr) {
buf.append(String.format("%02X:", b));
}
if (buf.length() > 0) {
buf.deleteCharAt(buf.length() - 1);
}
macAddress = buf.toString();
} catch (SocketException e) {
e.printStackTrace();
return "02:00:00:00:00:02";
}
return macAddress;
} else {
return "WiFi 未连接";
}
}
}
