Question

我想检查设备中是否有可用的Internet连接，所以我怎么能得到这个..请给我这个代码..

非常感谢提前

Answer 1

嘿伙计...应用此代码..这可能对你提前帮助....

布尔连接;

    private boolean checkInternetConnection()
    {

        ConnectivityManager conMgr = (ConnectivityManager) getSystemService (Context.CONNECTIVITY_SERVICE);

        // ARE WE CONNECTED TO THE NET

        if (conMgr.getActiveNetworkInfo() != null

                && conMgr.getActiveNetworkInfo().isAvailable()

                && conMgr.getActiveNetworkInfo().isConnected()) 
        {

        return true;

        }
        else 
        {
        return false;

        }
    }

Answer 2

        ConnectivityManager connectionService =
            (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
        if (connectionService.getActiveNetworkInfo().isConnectedOrConnecting()) {
            // Device is online
        }

Answer 3

使用以下功能检查互联网连接：

public boolean isOnline()
    {

         ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
         NetworkInfo ni = cm.getActiveNetworkInfo();
         boolean result = false;
         if(ni != null )
         {
             if(  ni.getState() == NetworkInfo.State.CONNECTED )
             {
                 result = true;
             }
         }

         return result;

        }

检查 isOnline（）返回的内容。如果为true则会连接Internet，否则Inernet未连接。希望这会对你有所帮助.. :)

Answer 4

// Network is connected or not 
public boolean isConnected()
{
    ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
      if(connectivity != null)
      {
          NetworkInfo[] info = connectivity.getAllNetworkInfo();
          if (info != null)
              for (int i = 0; i < info.length; i++)
                  if (info[i].getState() == NetworkInfo.State.CONNECTED)
                  {
                      Log.d("LOG","Network is Available");
                      return true;
                  }

      }
      return false;
}

Answer 5

使用此答案帮助。

public boolean isOnline() {
  ConnectivityManager cm =(ConnectivityManager)      
  getSystemService(Context.CONNECTIVITY_SERVICE);
  NetworkInfo netInfo = cm.getActiveNetworkInfo();
  if (netInfo != null && netInfo.isConnectedOrConnecting()) {
     return true;
  }
  return false;
}

if(temp==true){
    genHelper.showToast("Net Connection");              
}else{              
    genHelper.showToast(" Not  Connected");
}

android：如何知道设备中是否有互联网连接？

5 个答案: