0

我在问这个，因为我已经尝试过....一些代码并创建了我自己的代码来访问互联网上存在的文件，我想读取该文件但我的代码不起作用所以我问这个问题是因为在SD_CARD 情况下，我们必须向我们的 android 应用程序提供权限，以便您可以访问它....因此，每次我的应用程序终止时，我的代码都是：-

    try 
{
        url = new URL ("http://sites.google.com/site/androidersite/text.txt");
} 
    catch (MalformedURLException e) 
    {
    Toast.makeText( this , "url String mein hi error aa raha hai .. oo" ,          Toast.LENGTH_LONG ).show();
}

    HttpURLConnection  urlConnection = null ;
    try 
    {
    urlConnection = (HttpURLConnection) url.openConnection();
} 
    catch (IOException e) 
    {
        Toast.makeText( this , "HTTP url connection mein error" , Toast.LENGTH_SHORT ).show();
}

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

    NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();

    if (networkInfo != null && networkInfo.isConnected()) 
    {
         Toast.makeText( this , "connect hua" , Toast.LENGTH_SHORT ).show();
    } 
    else 
    {
         Toast.makeText( this , "nahi hua connect" , Toast.LENGTH_SHORT ).show();
    }

    try 
    {
         BufferedReader bufferReader = new BufferedReader(new InputStreamReader(url.openStream()));

         String StringBuffer;
         String stringText = "";

         while ((StringBuffer = bufferReader.readLine()) != null) 
         {
              stringText += StringBuffer;
         }

         bufferReader.close();

    } 
    catch (MalformedURLException e) 
    {
        e.printStackTrace();
    } 
    catch (IOException e) 
    {
        e.printStackTrace();
    }

&对于我提供的权限，它。

<uses-sdk
    android:minSdkVersion="16"
    android:targetSdkVersion="15" />

<uses-permission android:name="android.permission.INTERNET"></uses-permission>
4

0 回答 0