Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.content.Context;

import android.net.ConnectivityManager;
import android.net.NetworkInfo;

import android.telephony.TelephonyManager;

public class Main {
    /**
     * Unknown network class
     */
    public static final int NETWORK_CLASS_UNKNOWN = 0;
    /**
     * wifi net work
     */
    public static final int NETWORK_WIFI = 1;
    /**
     * "2G" networks
     */
    public static final int NETWORK_CLASS_2_G = 2;
    /**
     * "3G" networks
     */
    public static final int NETWORK_CLASS_3_G = 3;
    /**
     * "4G" networks
     */
    public static final int NETWORK_CLASS_4_G = 4;

    public static int getNetType(Context context) {
        int netWorkType = NETWORK_CLASS_UNKNOWN;

        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();

        if (networkInfo != null && networkInfo.isConnected()) {
            int type = networkInfo.getType();

            if (type == ConnectivityManager.TYPE_WIFI) {
                netWorkType = NETWORK_WIFI;
            } else if (type == ConnectivityManager.TYPE_MOBILE) {
                TelephonyManager telephonyManager = (TelephonyManager) context
                        .getSystemService(Context.TELEPHONY_SERVICE);
                switch (telephonyManager.getNetworkType()) {
                case TelephonyManager.NETWORK_TYPE_GPRS:
                case TelephonyManager.NETWORK_TYPE_EDGE:
                case TelephonyManager.NETWORK_TYPE_CDMA:
                case TelephonyManager.NETWORK_TYPE_1xRTT:
                case TelephonyManager.NETWORK_TYPE_IDEN:
                    return NETWORK_CLASS_2_G;
                case TelephonyManager.NETWORK_TYPE_UMTS:
                case TelephonyManager.NETWORK_TYPE_EVDO_0:
                case TelephonyManager.NETWORK_TYPE_EVDO_A:
                case TelephonyManager.NETWORK_TYPE_HSDPA:
                case TelephonyManager.NETWORK_TYPE_HSUPA:
                case TelephonyManager.NETWORK_TYPE_HSPA:
                case TelephonyManager.NETWORK_TYPE_EVDO_B:
                case TelephonyManager.NETWORK_TYPE_EHRPD:
                case TelephonyManager.NETWORK_TYPE_HSPAP:
                    return NETWORK_CLASS_3_G;

                case TelephonyManager.NETWORK_TYPE_LTE:
                    return NETWORK_CLASS_4_G;
                default:
                    return NETWORK_CLASS_UNKNOWN;
                }
            }
        }

        return netWorkType;
    }
}