android 获取mac地址

android获取Mac地址的两种方式，适用于6.0版本以下

public static String tryGetWifiMac(Context context) {    WifiManager wm = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);    WifiInfo wi = wm.getConnectionInfo();    if (wi == null || wi.getMacAddress() == null) {        return null;    }    if ("02:00:00:00:00:00".equals(wi.getMacAddress().trim())) {        return null;    } else {        return wi.getMacAddress().trim();    }}public static String getMac() {    String mac = null;    StringBuffer fileData = new StringBuffer(16);    try {        BufferedReader reader;        reader = new BufferedReader(new FileReader("/sys/class/net/wlan0/address"));        char[] buf = new char[16];        boolean var5 = false;        int numRead;        while ((numRead = reader.read(buf)) != -1) {            String readData = String.valueOf(buf, 0, numRead);            fileData.append(readData);        }        reader.close();        mac = fileData.toString();    } catch (FileNotFoundException var7) {        var7.printStackTrace();    } catch (IOException var8) {        var8.printStackTrace();    }    if (TextUtils.isEmpty(mac)) {        return "uy0iTYfVGkhpC3yi";    } else {        mac = mac.replaceAll("\\\\n", "").replaceAll("\\n", "").trim();        return mac;    }}

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