Checks whether there is connection of the requested connectionType available or not. - Android Network

Android examples for Network:Network Connection

  1. HOME
  2. Android
  3. Network
  4. Network Connection

Description

Checks whether there is connection of the requested connectionType available or not.

Demo Code

/*//from   w  w  w.j a  va2  s .  c om
 * ------------------------------------------------------------------------------------------------=
 *                    Copyright (C) 2014 Martin Albedinsky [Wolf-ITechnologies]
 * ------------------------------------------------------------------------------------------------=
 *         Licensed under the Apache License, Version 2.0 or later (further "License" only).
 * -------------------------------------------------------------------------------------------------
 * You may use this file only in compliance with the License. More details and copy of this License 
 * you may obtain at
 * 
 *       http://www.apache.org/licenses/LICENSE-2.0
 * 
 * You can redistribute, modify or publish any part of the code written within this file but as it 
 * is described in the License, the software distributed under the License is distributed on an 
 * "AS IS" BASIS, WITHOUT WARRANTIES or CONDITIONS OF ANY KIND.
 * 
 * See the License for the specific language governing permissions and limitations under the License.
 * ------------------------------------------------------------------------------------------------=
 */
//package com.java2s;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.support.annotation.NonNull;

public class Main {
    /**
     * Checks whether there is connection of the requested <var>connectionType</var> available or not.
     * <p>
     * See {@link android.net.NetworkInfo#isAvailable()} for additional info.
     *
     * @param context        Context used to access {@link android.net.ConnectivityManager}.
     * @param connectionType Type of the desired connection of which availability to check.
     * @return {@code True} if connection of the requested type available, {@code false}
     * otherwise.
     * @see #isConnectionEstablished(android.content.Context, int)
     */
    public static boolean isConnectionAvailable(@NonNull Context context,
            int connectionType) {
        final NetworkInfo info = accessManager(context).getNetworkInfo(
                connectionType);
        return info != null && info.isAvailable();
    }

    /**
     * Accesses the ConnectivityManager service using the given <var>context</var>.
     *
     * @param context Context from which ConnectivityManager should be accessed.
     * @return An instance of ConnectivityManager.
     */
    private static ConnectivityManager accessManager(Context context) {
        return (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
    }
}

Related Tutorials