Android Open Source - crtaci Connectivity

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License

The source code is released under:
GNU General Public License
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Java Source Code

package com.github.gen2brain.crtaci.utils;
//from  w w w . j  av  a2 s .c o m
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;

/**
 * Check device's network connectivity and speed 
 * @author emil http://stackoverflow.com/users/220710/emil
 *
 */
public class Connectivity {
  
  /**
   * Get the network info
   * @param context
   * @return
   */
  public static NetworkInfo getNetworkInfo(Context context){
      ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
      return cm.getActiveNetworkInfo();
  }
  
  /**
   * Check if there is any connectivity
   * @param context
   * @return
   */
  public static boolean isConnected(Context context){
      NetworkInfo info = Connectivity.getNetworkInfo(context);
      return (info != null && info.isConnected());
  }
  
  /**
   * Check if there is any connectivity to a Wifi network
   * @param context
   * @return
   */
  public static boolean isConnectedWifi(Context context){
      NetworkInfo info = Connectivity.getNetworkInfo(context);
      return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI);
  }
  
  /**
   * Check if there is any connectivity to a mobile network
   * @param context
   * @return
   */
  public static boolean isConnectedMobile(Context context){
      NetworkInfo info = Connectivity.getNetworkInfo(context);
      return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_MOBILE);
  }
  
  /**
   * Check if there is fast connectivity
   * @param context
   * @return
   */
  public static boolean isConnectedFast(Context context){
      NetworkInfo info = Connectivity.getNetworkInfo(context);
      return (info != null && info.isConnected() && Connectivity.isConnectionFast(info.getType(),info.getSubtype()));
  }
  
  /**
   * Check if the connection is fast
   * @param type
   * @param subType
   * @return
   */
  public static boolean isConnectionFast(int type, int subType){
    if(type==ConnectivityManager.TYPE_WIFI){
      return true;
    }else if(type==ConnectivityManager.TYPE_MOBILE){
      switch(subType){
      case TelephonyManager.NETWORK_TYPE_1xRTT:
        return false; // ~ 50-100 kbps
      case TelephonyManager.NETWORK_TYPE_CDMA:
        return false; // ~ 14-64 kbps
      case TelephonyManager.NETWORK_TYPE_EDGE:
        return false; // ~ 50-100 kbps
      case TelephonyManager.NETWORK_TYPE_EVDO_0:
        return true; // ~ 400-1000 kbps
      case TelephonyManager.NETWORK_TYPE_EVDO_A:
        return true; // ~ 600-1400 kbps
      case TelephonyManager.NETWORK_TYPE_GPRS:
        return false; // ~ 100 kbps
      case TelephonyManager.NETWORK_TYPE_HSDPA:
        return true; // ~ 2-14 Mbps
      case TelephonyManager.NETWORK_TYPE_HSPA:
        return true; // ~ 700-1700 kbps
      case TelephonyManager.NETWORK_TYPE_HSUPA:
        return true; // ~ 1-23 Mbps
      case TelephonyManager.NETWORK_TYPE_UMTS:
        return true; // ~ 400-7000 kbps
      /*
       * Above API level 7, make sure to set android:targetSdkVersion 
       * to appropriate level to use these
       */
      case TelephonyManager.NETWORK_TYPE_EHRPD: // API level 11 
        return true; // ~ 1-2 Mbps
      case TelephonyManager.NETWORK_TYPE_EVDO_B: // API level 9
        return true; // ~ 5 Mbps
      case TelephonyManager.NETWORK_TYPE_HSPAP: // API level 13
        return true; // ~ 10-20 Mbps
      case TelephonyManager.NETWORK_TYPE_IDEN: // API level 8
        return false; // ~25 kbps 
      case TelephonyManager.NETWORK_TYPE_LTE: // API level 11
        return true; // ~ 10+ Mbps
      // Unknown
      case TelephonyManager.NETWORK_TYPE_UNKNOWN:
      default:
        return false;
      }
    }else{
      return false;
    }
  }

}
Java Source Code List
