Android Open Source - android_retrieval_system Network3g Helper

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * This file is part of Android retrieval system project.
 * //from   w w  w.jav  a 2s.  c  om
 * Android retrieval system is free software: you can redistribute it
 * and/or modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version. 
 * 
 * Android retrieval system is distributed in the hope that
 * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Android retrieval system. If not, see <http://www.gnu.org/licenses/>.
 */

package net.deerhunter.ars.internet_utils;

import java.lang.reflect.Field;
import java.lang.reflect.Method;

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

/**
 * Class that helps to work with 3G module.
 * 
 * @author DeerHunter (vityokkv73@gmail.com)
 */
public class Network3gHelper {
  private Network3gHelper() {}

  /**
   * Changes the 3G module state.
   * 
   * @param context Context of the application component
   * @param enabled New state of the 3G module
   * @throws Exception if the device doesn't have the access to the 3G module
   */
  public static void change3gState(Context context, boolean enabled) throws Exception {
    if (is3GEnabled(context) == enabled)
      return;
    final ConnectivityManager connectivityManager = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
    final Class<?> connectivityManagerClass = connectivityManager.getClass();
    final Field connectivityManagerField = connectivityManagerClass.getDeclaredField("mService");
    connectivityManagerField.setAccessible(true);
    final Object iConnectivityManager = connectivityManagerField.get(connectivityManager);
    final Class<?> iConnectivityManagerClass = iConnectivityManager.getClass();
    final Method setMobileDataEnabledMethod = iConnectivityManagerClass.getDeclaredMethod("setMobileDataEnabled",
        Boolean.TYPE);
    setMobileDataEnabledMethod.setAccessible(true);

    setMobileDataEnabledMethod.invoke(iConnectivityManager, enabled);
  }

  /**
   * Returns the state of the 3G module.
   * 
   * @param context Context of the application component
   * @return State of the 3G module
   * @throws Exception if the device doesn't have the access to the 3G module
   */
  public static boolean is3GEnabled(Context context) throws Exception {
    final ConnectivityManager connectivityManager = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
    final Class<?> connectivityManagerClass = connectivityManager.getClass();
    final Field connectivityManagerField = connectivityManagerClass.getDeclaredField("mService");
    connectivityManagerField.setAccessible(true);
    final Object iConnectivityManager = connectivityManagerField.get(connectivityManager);
    final Class<?> iConnectivityManagerClass = iConnectivityManager.getClass();
    final Method getMobileDataEnabledMethod = iConnectivityManagerClass.getDeclaredMethod("getMobileDataEnabled");
    getMobileDataEnabledMethod.setAccessible(true);

    return (Boolean) getMobileDataEnabledMethod.invoke(iConnectivityManager);
  }
}

Java Source Code List