Android Open Source - nemo Network State Checker

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Back to project page nemo.

License

The source code is released under:

Apache License

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Java Source Code

/*
 * Copyright (C) 2014 Niko Rehnb?ck/*  www  .j  av a  2  s  . c  o  m*/
 * 
 * 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.networking.nemo.util;

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

/**
 * Simple helper class to check whether network is connected or not.
 * 
 * @author Niko Rehnb?ck
 * 
 */
public class NetworkStateChecker {

  private static NetworkStateChecker sNetworkStateChecker;
  private Context mAppContext;

  private NetworkStateChecker(Context appContext) {
    mAppContext = appContext;
  }

  public static NetworkStateChecker getInstance(Context appContext) {
    if (sNetworkStateChecker == null) {
      sNetworkStateChecker = new NetworkStateChecker(appContext);
    }

    return sNetworkStateChecker;
  }

  @Override
  protected Object clone() throws CloneNotSupportedException {
    throw new CloneNotSupportedException(
        "Cloning NetworkStateChecker is not allowed.");
  }

  public boolean isNetworkConnected() {
    ConnectivityManager connectivity = (ConnectivityManager) mAppContext
        .getSystemService(Context.CONNECTIVITY_SERVICE);

    if (connectivity != null) {
      NetworkInfo[] info = connectivity.getAllNetworkInfo();

      if (info != null) {
        for (int i = 0; i < info.length; i++) {
          if (info[i].getState() == NetworkInfo.State.CONNECTED) {
            return true;
          }
        }
      }
    }

    return false;
  }
}

Java Source Code List