import android.content.Context;
import android.content.pm.PackageManager;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Build;
import android.text.TextUtils;
import android.util.Log;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.io.LineNumberReader;
import java.io.Reader;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Collections;
import java.util.Enumeration;
import java.util.List;
/**
- Created by Administrator on 2019/9/29.
*/
public class Utils {
//获取mac地址
public static String getMac(Context context) {
String strMac = null;
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
Log.e("=====", "6.0以下");
//Toast.makeText(context, "6.0以下", Toast.LENGTH_SHORT).show();
strMac = getLocalMacAddressFromWifiInfo(context);
return strMac;
} else if (Build.VERSION.SDK_INT < Build.VERSION_CODES.N
&& Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
Log.e("=====", "6.0以上7.0以下");
// Toast.makeText(context, "6.0以上7.0以下", Toast.LENGTH_SHORT).show();
strMac = getMacAddress(context);
return strMac;
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
// Log.e("=====", "7.0以上");
if (!TextUtils.isEmpty(getMacAddress(context))) {
// Log.e("=====", "7.0以上1");
// Toast.makeText(context, "7.0以上1", Toast.LENGTH_SHORT).show();
strMac = getMacAddress(context);
return strMac;
} else if (!TextUtils.isEmpty(getMachineHardwareAddress())) {
// Log.e("=====", "7.0以上2");
// Toast.makeText(context, "7.0以上2", Toast.LENGTH_SHORT).show();
// strMac = getMachineHardwareAddress();
strMac=getMacFromHardware();
return strMac;
} else {
// Log.e("=====", "7.0以上3");
// Toast.makeText(context, "7.0以上3", Toast.LENGTH_SHORT).show();
strMac = getLocalMacAddressFromBusybox();
return strMac;
}
}
return "02:00:00:00:00:00";
}
/**
* 根据wifi信息获取本地mac
*
* @param context
* @return
*/
public static String getLocalMacAddressFromWifiInfo(Context context) {
WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
WifiInfo winfo = wifi.getConnectionInfo();
String mac = winfo.getMacAddress();
return mac;
}
/**
* android 6.0及以上、7.0以下 获取mac地址
*
* @param context
* @return
*/
public static String getMacAddress(Context context) {
// 如果是6.0以下,直接通过wifimanager获取
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) {
String macAddress0 = getMacAddress0(context);
if (!TextUtils.isEmpty(macAddress0)) {
return macAddress0;
}
}
String str = "";
String macSerial = "";
try {
Process pp = Runtime.getRuntime().exec(
"cat /sys/class/net/wlan0/address");
InputStreamReader ir = new InputStreamReader(pp.getInputStream());
LineNumberReader input = new LineNumberReader(ir);
for (; null != str; ) {
str = input.readLine();
if (str != null) {
macSerial = str.trim();// 去空格
break;
}
}
} catch (Exception ex) {
Log.e("----->" + "NetInfoManager", "getMacAddress:" + ex.toString());
}
if (macSerial == null || "".equals(macSerial)) {
try {
return loadFileAsString("/sys/class/net/eth0/address")
.toUpperCase().substring(0, 17);
} catch (Exception e) {
e.printStackTrace();
Log.e("----->" + "NetInfoManager",
"getMacAddress:" + e.toString());
}
}
return macSerial;
}
/**
* android 7.0及以上 (2)扫描各个网络接口获取mac地址
*
*/
/**
* 获取设备HardwareAddress地址
*
* @return
*/
public static String getMachineHardwareAddress() {
Enumeration<NetworkInterface> interfaces = null;
try {
interfaces = NetworkInterface.getNetworkInterfaces();
} catch (SocketException e) {
e.printStackTrace();
}
String hardWareAddress = null;
NetworkInterface iF = null;
if (interfaces == null) {
return null;
}
while (interfaces.hasMoreElements()) {
iF = interfaces.nextElement();
try {
hardWareAddress = bytesToString(iF.getHardwareAddress());
if (hardWareAddress != null)
break;
} catch (SocketException e) {
e.printStackTrace();
}
}
return hardWareAddress;
}
/**
* 遍历循环所有的网络接口,找到接口是 wlan0
* 必须的权限 <uses-permission android:name="android.permission.INTERNET" />
*
* @return
*/
private static String getMacFromHardware() {
try {
List<NetworkInterface> all = Collections.list(NetworkInterface.getNetworkInterfaces());
for (NetworkInterface nif : all) {
if (!nif.getName().equalsIgnoreCase("wlan0")) continue;
byte[] macBytes = nif.getHardwareAddress();
if (macBytes == null) {
return "";
}
StringBuilder res1 = new StringBuilder();
for (byte b : macBytes) {
res1.append(String.format("%02X:", b));
}
if (res1.length() > 0) {
res1.deleteCharAt(res1.length() - 1);
}
return res1.toString();
}
} catch (Exception e) {
e.printStackTrace();
}
return "02:00:00:00:00:00";
}
/**
* android 7.0及以上 (3)通过busybox获取本地存储的mac地址
*
*/
/**
* 根据busybox获取本地Mac
*
* @return
*/
public static String getLocalMacAddressFromBusybox() {
String result = "";
String Mac = "";
result = callCmd("busybox ifconfig", "HWaddr");
// 如果返回的result == null,则说明网络不可取
if (result == null) {
return "网络异常";
}
// 对该行数据进行解析
// 例如:eth0 Link encap:Ethernet HWaddr 00:16:E8:3E:DF:67
if (result.length() > 0 && result.contains("HWaddr") == true) {
Mac = result.substring(result.indexOf("HWaddr") + 6,
result.length() - 1);
result = Mac;
}
return result;
}
private static String getMacAddress0(Context context) {
if (isAccessWifiStateAuthorized(context)) {
WifiManager wifiMgr = (WifiManager) context
.getSystemService(Context.WIFI_SERVICE);
WifiInfo wifiInfo = null;
try {
wifiInfo = wifiMgr.getConnectionInfo();
return wifiInfo.getMacAddress();
} catch (Exception e) {
Log.e("----->" + "NetInfoManager",
"getMacAddress0:" + e.toString());
}
}
return "";
}
private static String loadFileAsString(String fileName) throws Exception {
Reader reader = new FileReader(fileName);
String text = loadReaderAsString(reader);
reader.close();
return text;
}
/***
* byte转为String
*
* @param bytes
* @return
*/
private static String bytesToString(byte[] bytes) {
if (bytes == null || bytes.length == 0) {
return null;
}
StringBuilder buf = new StringBuilder();
for (byte b : bytes) {
buf.append(String.format("%02X:", b));
}
if (buf.length() > 0) {
buf.deleteCharAt(buf.length() - 1);
}
return buf.toString();
}
private static String callCmd(String cmd, String filter) {
String result = "";
String line = "";
try {
Process proc = Runtime.getRuntime().exec(cmd);
InputStreamReader is = new InputStreamReader(proc.getInputStream());
BufferedReader br = new BufferedReader(is);
while ((line = br.readLine()) != null
&& line.contains(filter) == false) {
result += line;
}
result = line;
} catch (Exception e) {
e.printStackTrace();
}
return result;
}
/**
* Check whether accessing wifi state is permitted
*
* @param context
* @return
*/
private static boolean isAccessWifiStateAuthorized(Context context) {
if (PackageManager.PERMISSION_GRANTED == context
.checkCallingOrSelfPermission("android.permission.ACCESS_WIFI_STATE")) {
Log.e("----->" + "NetInfoManager", "isAccessWifiStateAuthorized:"
+ "access wifi state is enabled");
return true;
} else
return false;
}
private static String loadReaderAsString(Reader reader) throws Exception {
StringBuilder builder = new StringBuilder();
char[] buffer = new char[4096];
int readLength = reader.read(buffer);
while (readLength >= 0) {
builder.append(buffer, 0, readLength);
readLength = reader.read(buffer);
}
return builder.toString();
}
}