超实用的android网络工具类

/**
 * @类名:NetUtil
 * @类描述:网络判断处理类
 * @创建时间:2015年2月12日-上午9:34:32
 * @修改人:
 * @修改时间:
 * @修改备注:
 * @版本:
 */
public class NetUtil {
  /* 网络状态 */
  public static boolean isNet = true;
  public static enum netType
  {
    wifi, CMNET, CMWAP, noneNet
  }

  /**
   * @方法说明:判断WIFI网络是否可用
   * @方法名称:isWifiConnected
   * @param context
   * @return
   * @返回值:boolean
   */
  public static boolean isWifiConnected(Context context)
  {
    if (context != null)
    {
      ConnectivityManager mConnectivityManager = (ConnectivityManager) context
          .getSystemService(Context.CONNECTIVITY_SERVICE);
      NetworkInfo mWiFiNetworkInfo = mConnectivityManager
          .getNetworkInfo(ConnectivityManager.TYPE_WIFI);
      if (mWiFiNetworkInfo != null)
      {
        return mWiFiNetworkInfo.isAvailable();
      }
    }
    return false;
  }

  /**
   * @方法说明:判断MOBILE网络是否可用
   * @方法名称:isMobileConnected
   * @param context
   * @return
   * @返回值:boolean
   */
  public static boolean isMobileConnected(Context context)
  {
    if (context != null)
    {
      ConnectivityManager mConnectivityManager = (ConnectivityManager) context
          .getSystemService(Context.CONNECTIVITY_SERVICE);
      NetworkInfo mMobileNetworkInfo = mConnectivityManager
          .getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
      if (mMobileNetworkInfo != null)
      {
        return mMobileNetworkInfo.isAvailable();
      }
    }
    return false;
  }

  /**
   * @方法说明:获取当前网络连接的类型信息
   * @方法名称:getConnectedType
   * @param context
   * @return
   * @返回值:int
   */
  public static int getConnectedType(Context context)
  {
    if (context != null)
    {
      ConnectivityManager mConnectivityManager = (ConnectivityManager) context
          .getSystemService(Context.CONNECTIVITY_SERVICE);
      NetworkInfo mNetworkInfo = mConnectivityManager
          .getActiveNetworkInfo();
      if (mNetworkInfo != null && mNetworkInfo.isAvailable())
      {
        return mNetworkInfo.getType();
      }
    }
    return -1;
  }

  /**
   * @方法说明:获取当前的网络状态 -1：没有网络 1：WIFI网络2：wap 网络3：net网络
   * @方法名称:getAPNType
   * @param context
   * @return
   * @返回值:netType
   */
  public static netType getAPNType(Context context)
  {
    ConnectivityManager connMgr = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
    if (networkInfo == null)
    {
      return netType.noneNet;
    }
    int nType = networkInfo.getType();

    if (nType == ConnectivityManager.TYPE_MOBILE)
    {
      if (networkInfo.getExtraInfo().toLowerCase().equals("cmnet"))
      {
        return netType.CMNET;
      }

      else
      {
        return netType.CMWAP;
      }
    } else if (nType == ConnectivityManager.TYPE_WIFI)
    {
      return netType.wifi;
    }
    return netType.noneNet;

  }

  /**
   * @方法说明:判断是否有网络连接
   * @方法名称:isNetworkConnected
   * @param context
   * @return
   * @返回值:boolean
   */
  public static boolean isNetworkConnected(Context context) {
    if (context != null) {
      ConnectivityManager mConnectivityManager = (ConnectivityManager) context
          .getSystemService(Context.CONNECTIVITY_SERVICE);
      NetworkInfo mNetworkInfo = mConnectivityManager
          .getActiveNetworkInfo();
      if (mNetworkInfo != null) {
        return mNetworkInfo.isAvailable();
      }
    }
    return false;
  }

  /**
   * @方法说明:网络是否可用
   * @方法名称:isNetworkAvailable
   * @param context
   * @return
   * @返回值:boolean
   */
  public static boolean isNetworkAvailable(Context context)
  {
    ConnectivityManager mgr = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo[] info = mgr.getAllNetworkInfo();
    if (info != null)
    {
      for (int i = 0; i < info.length; i++)
      {
        if (info[i].getState() == NetworkInfo.State.CONNECTED)
        {
          return true;
        }
      }
    }
    return false;
  }

  /**
   * @方法说明:判断是否是手机网络
   * @方法名称:is3GNet
   * @param context
   * @return
   * @返回值:boolean
   */
  public static boolean is3GNet(Context context) {
    ConnectivityManager connectivityManager = (ConnectivityManager) context
        .getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
    if (activeNetInfo != null
        && activeNetInfo.getType() == ConnectivityManager.TYPE_MOBILE) {
      return true;
    }
    return false;
  }
}