android當前網路連接類型判斷

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package net.nyist.netState;    import android.content.Context;  import android.net.ConnectivityManager;  import android.net.NetworkInfo;    /**@author   *   *這是一個判斷當前網路狀態的工具類  *  */  public class netState {      /**      *       * @return 是否有活動的網路連接      */      public final boolean hasNetWorkConnection(Context context){          //擷取串連Active Manager          final ConnectivityManager connectivityManager= (ConnectivityManager) context.                  getSystemService(Context.CONNECTIVITY_SERVICE);          //擷取連結網路資訊          final NetworkInfo networkInfo=connectivityManager.getActiveNetworkInfo();                    return (networkInfo!= null && networkInfo.isAvailable());                }      /**      * @return 返回boolean ,是否為wifi網路      *       */      public final boolean hasWifiConnection(Context context)      {             final ConnectivityManager connectivityManager= (ConnectivityManager) context.                  getSystemService(Context.CONNECTIVITY_SERVICE);          final NetworkInfo networkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);          //是否有網路並且已經串連          return (networkInfo!=null&& networkInfo.isConnectedOrConnecting());                          }            /**      * @return 返回boolean,判斷網路是否可用,是否為移動網路      *       */            public final boolean hasGPRSConnection(Context context){          //擷取活動連線管理員          final ConnectivityManager connectivityManager= (ConnectivityManager) context.                  getSystemService(Context.CONNECTIVITY_SERVICE);          final NetworkInfo networkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);          return (networkInfo!=null && networkInfo.isAvailable());                }      /**      * @return  判斷網路是否可用，並返回網路類型，ConnectivityManager.TYPE_WIFI，ConnectivityManager.TYPE_MOBILE，不可用返回-1      */      public static final int getNetWorkConnectionType(Context context){          final ConnectivityManager connectivityManager=(ConnectivityManager) context.                  getSystemService(Context.CONNECTIVITY_SERVICE);          final NetworkInfo wifiNetworkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);          final NetworkInfo mobileNetworkInfo=connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);                              if(wifiNetworkInfo!=null &&wifiNetworkInfo.isAvailable())          {              return ConnectivityManager.TYPE_WIFI;          }          else if(mobileNetworkInfo!=null &&mobileNetworkInfo.isAvailable())          {              return ConnectivityManager.TYPE_MOBILE;          }          else {              return -1;          }                          }        }

 

android當前網路連接類型判斷