NetUtils.java

/*
 * Copyright (c) 2015 [1076559197@qq.com | tchen0707@gmail.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.
 */

package com.dreamspace.uucampus.common.utils;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;

import java.util.Locale;

/**
 * Author:  Tau.Chen
 * Email:   1076559197@qq.com | tauchen1990@gmail.com
 * Date:    2015/3/10.
 * Description:
 */
public class NetUtils {

	public static enum NetType {
		WIFI, CMNET, CMWAP, NONE
	}

	public static boolean isNetworkAvailable(Context context) {
		ConnectivityManager mgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo[] info = mgr.getAllNetworkInfo();
		if (info != null) {
			for (int i = 0; i < info.length; i++) {
				if (info[i].getState() == NetworkInfo.State.CONNECTED) {
					return true;
				}
			}
		}
		return false;
	}

	public static boolean isNetworkConnected(Context context) {
		if (context != null) {
			ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
			NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
			if (mNetworkInfo != null) {
				return mNetworkInfo.isAvailable();
			}
		}
		return false;
	}

	public static boolean isWifiConnected(Context context) {
		if (context != null) {
			ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
			NetworkInfo mWiFiNetworkInfo = mConnectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
			if (mWiFiNetworkInfo != null) {
				return mWiFiNetworkInfo.isAvailable();
			}
		}
		return false;
	}

	public static boolean isMobileConnected(Context context) {
		if (context != null) {
			ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
			NetworkInfo mMobileNetworkInfo = mConnectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
			if (mMobileNetworkInfo != null) {
				return mMobileNetworkInfo.isAvailable();
			}
		}
		return false;
	}

	public static int getConnectedType(Context context) {
		if (context != null) {
			ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
			NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
			if (mNetworkInfo != null && mNetworkInfo.isAvailable()) {
				return mNetworkInfo.getType();
			}
		}
		return -1;
	}

	public static NetType getAPNType(Context context) {
		ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
		if (networkInfo == null) {
			return NetType.NONE;
		}
		int nType = networkInfo.getType();

		if (nType == ConnectivityManager.TYPE_MOBILE) {
			if (networkInfo.getExtraInfo().toLowerCase(Locale.getDefault()).equals("cmnet")) {
				return NetType.CMNET;
			}else {
				return NetType.CMWAP;
			}
		} else if (nType == ConnectivityManager.TYPE_WIFI) {
			return NetType.WIFI;
		}
		return NetType.NONE;
	}
}