Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 *   Copyright (C)  2016 android@19code.com
 *
 *   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
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   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;
import android.text.TextUtils;

public class Main {
    public static final String NETWORK_TYPE_WIFI = "wifi";
    public static final String NETWORK_TYPE_3G = "3g";
    public static final String NETWORK_TYPE_2G = "2g";
    public static final String NETWORK_TYPE_WAP = "wap";
    public static final String NETWORK_TYPE_UNKNOWN = "unknown";
    public static final String NETWORK_TYPE_DISCONNECT = "disconnect";

    public static String getNetworkTypeName(Context context) {
        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo;
        String type = NETWORK_TYPE_DISCONNECT;
        if (manager == null || (networkInfo = manager.getActiveNetworkInfo()) == null) {
            return type;
        }

        if (networkInfo.isConnected()) {
            String typeName = networkInfo.getTypeName();
            if ("WIFI".equalsIgnoreCase(typeName)) {
                type = NETWORK_TYPE_WIFI;
            } else if ("MOBILE".equalsIgnoreCase(typeName)) {
                //String proxyHost = android.net.Proxy.getDefaultHost();//deprecated
                String proxyHost = System.getProperty("http.proxyHost");
                type = TextUtils.isEmpty(proxyHost)
                        ? (isFastMobileNetwork(context) ? NETWORK_TYPE_3G : NETWORK_TYPE_2G)
                        : NETWORK_TYPE_WAP;
            } else {
                type = NETWORK_TYPE_UNKNOWN;
            }
        }
        return type;
    }

    public static boolean isConnected(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo info = cm.getActiveNetworkInfo();
        if (info != null && info.isConnected()) {
            if (info.getState() == NetworkInfo.State.CONNECTED) {
                return true;
            }
        }
        return false;
    }

    /**
     * Whether is fast mobile network
     */

    private static boolean isFastMobileNetwork(Context context) {
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
        if (telephonyManager == null) {
            return false;
        }

        switch (telephonyManager.getNetworkType()) {
        case TelephonyManager.NETWORK_TYPE_1xRTT:
            return false;
        case TelephonyManager.NETWORK_TYPE_CDMA:
            return false;
        case TelephonyManager.NETWORK_TYPE_EDGE:
            return false;
        case TelephonyManager.NETWORK_TYPE_EVDO_0:
            return true;
        case TelephonyManager.NETWORK_TYPE_EVDO_A:
            return true;
        case TelephonyManager.NETWORK_TYPE_GPRS:
            return false;
        case TelephonyManager.NETWORK_TYPE_HSDPA:
            return true;
        case TelephonyManager.NETWORK_TYPE_HSPA:
            return true;
        case TelephonyManager.NETWORK_TYPE_HSUPA:
            return true;
        case TelephonyManager.NETWORK_TYPE_UMTS:
            return true;
        case TelephonyManager.NETWORK_TYPE_EHRPD:
            return true;
        case TelephonyManager.NETWORK_TYPE_EVDO_B:
            return true;
        case TelephonyManager.NETWORK_TYPE_HSPAP:
            return true;
        case TelephonyManager.NETWORK_TYPE_IDEN:
            return false;
        case TelephonyManager.NETWORK_TYPE_LTE:
            return true;
        case TelephonyManager.NETWORK_TYPE_UNKNOWN:
            return false;
        default:
            return false;
        }
    }

    public static int getNetworkType(Context context) {
        ConnectivityManager connectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = connectivityManager == null ? null : connectivityManager.getActiveNetworkInfo();
        return networkInfo == null ? -1 : networkInfo.getType();
    }
}