Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.util.Log;

public class Main {
    private static final String TAG = "GDNetworkUtil";

    static public String getMacAddress(Context context, ConnectivityManager connMananger) {
        Log.d(TAG, "getMacAddress");

        String macAddress = "";

        NetworkInfo info = connMananger.getActiveNetworkInfo();
        if (info != null && info.isConnected()) {
            int type = info.getType();

            Log.d(TAG, "connected type = " + type + " name " + info.getTypeName());

            if (type == ConnectivityManager.TYPE_WIFI) {
                WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
                WifiInfo wifiInfo = wifiManager.getConnectionInfo();
                macAddress = wifiInfo.getMacAddress();
            } else if (type == ConnectivityManager.TYPE_ETHERNET || type == ConnectivityManager.TYPE_MOBILE) {
                String addressFileName = "/sys/class/net/eth0/address";
                File addressFile = new File(addressFileName);
                Log.d(TAG, "1");

                if (addressFile.exists()) {
                    Log.d(TAG, "2");
                    macAddress = readString(addressFile);
                    Log.d(TAG, macAddress);
                } else {
                    addressFileName = "/sys/class/net/eth1/address";
                    addressFile = new File(addressFileName);
                    if (addressFile.exists()) {
                        macAddress = readString(addressFile);
                        Log.d(TAG, macAddress);
                    }
                }
            } else {
                //other type;
            }
        }
        return macAddress;
    }

    static private String readString(File file) {
        String value = "";
        try {
            int BUFFER_SIZE = 8192;
            String UTF8 = "utf8";

            BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file), UTF8),
                    BUFFER_SIZE);
            value = br.readLine();
            br.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
        return value;
    }
}