Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright 2016 JustWayward Team
 * <p/>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.content.Context;

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

import android.telephony.TelephonyManager;

public class Main {
    public static final int NETWORK_WIFI = 1;
    public static final int NETWORK_4G = 4;
    public static final int NETWORK_3G = 3;
    public static final int NETWORK_2G = 2;
    public static final int NETWORK_UNKNOWN = 5;
    public static final int NETWORK_NO = -1;
    private static final int NETWORK_TYPE_GSM = 16;
    private static final int NETWORK_TYPE_TD_SCDMA = 17;
    private static final int NETWORK_TYPE_IWLAN = 18;

    public static int getNetWorkType(Context context) {
        int netType = NETWORK_NO;
        NetworkInfo info = getActiveNetworkInfo(context);
        if (info != null && info.isAvailable()) {

            if (info.getType() == ConnectivityManager.TYPE_WIFI) {
                netType = NETWORK_WIFI;
            } else if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
                switch (info.getSubtype()) {

                case NETWORK_TYPE_GSM:
                case TelephonyManager.NETWORK_TYPE_GPRS:
                case TelephonyManager.NETWORK_TYPE_CDMA:
                case TelephonyManager.NETWORK_TYPE_EDGE:
                case TelephonyManager.NETWORK_TYPE_1xRTT:
                case TelephonyManager.NETWORK_TYPE_IDEN:
                    netType = NETWORK_2G;
                    break;

                case NETWORK_TYPE_TD_SCDMA:
                case TelephonyManager.NETWORK_TYPE_EVDO_A:
                case TelephonyManager.NETWORK_TYPE_UMTS:
                case TelephonyManager.NETWORK_TYPE_EVDO_0:
                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:
                    netType = NETWORK_3G;
                    break;

                case NETWORK_TYPE_IWLAN:
                case TelephonyManager.NETWORK_TYPE_LTE:
                    netType = NETWORK_4G;
                    break;
                default:

                    String subtypeName = info.getSubtypeName();
                    if (subtypeName.equalsIgnoreCase("TD-SCDMA") || subtypeName.equalsIgnoreCase("WCDMA")
                            || subtypeName.equalsIgnoreCase("CDMA2000")) {
                        netType = NETWORK_3G;
                    } else {
                        netType = NETWORK_UNKNOWN;
                    }
                    break;
                }
            } else {
                netType = NETWORK_UNKNOWN;
            }
        }
        return netType;
    }

    private static NetworkInfo getActiveNetworkInfo(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        return cm.getActiveNetworkInfo();
    }

    public static boolean isAvailable(Context context) {
        NetworkInfo info = getActiveNetworkInfo(context);
        return info != null && info.isAvailable();
    }
}