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POCode for download video from Youtube on Java, Android
 

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    <p>I created code for download video from Youtube, but this code doesn't work with Wi-fi connection and work with mobile connection. Where did I have mistake?</p> <pre><code>import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.util.Enumeration; import java.util.Vector; import android.app.Activity; import android.app.ProgressDialog; import android.net.Uri; import android.os.AsyncTask; import android.os.Bundle; import android.util.Log; import android.widget.MediaController; import android.widget.VideoView; public class MyActivity extends Activity { private class ReceivingDataFromYoutube extends AsyncTask&lt;String, Void, Void&gt; { private ProgressDialog dialog = new ProgressDialog(MyActivity.this); private String result; protected void onPreExecute() { dialog.setMessage("Downloading..."); dialog.show(); } @Override protected Void doInBackground(String... arg0) { int begin, end; String tmpstr = null; try { URL url=new URL("http://www.youtube.com/watch?v=y12-1miZHLs&amp;nomobile=1"); HttpURLConnection con = (HttpURLConnection) url.openConnection(); con.setRequestMethod("GET"); InputStream stream=con.getInputStream(); InputStreamReader reader=new InputStreamReader(stream); StringBuffer buffer=new StringBuffer(); char[] buf=new char[262144]; int chars_read; while ((chars_read = reader.read(buf, 0, 262144)) != -1) { buffer.append(buf, 0, chars_read); } tmpstr=buffer.toString(); begin = tmpstr.indexOf("url_encoded_fmt_stream_map="); end = tmpstr.indexOf("&amp;", begin + 27); if (end == -1) { end = tmpstr.indexOf("\"", begin + 27); } tmpstr = UtilClass.URLDecode(tmpstr.substring(begin + 27, end)); } catch (MalformedURLException e) { throw new RuntimeException(); } catch (IOException e) { throw new RuntimeException(); } Vector url_encoded_fmt_stream_map = new Vector(); begin = 0; end = tmpstr.indexOf(","); while (end != -1) { url_encoded_fmt_stream_map.addElement(tmpstr.substring(begin, end)); begin = end + 1; end = tmpstr.indexOf(",", begin); } url_encoded_fmt_stream_map.addElement(tmpstr.substring(begin, tmpstr.length())); String result = ""; Enumeration url_encoded_fmt_stream_map_enum = url_encoded_fmt_stream_map.elements(); while (url_encoded_fmt_stream_map_enum.hasMoreElements()) { tmpstr = (String)url_encoded_fmt_stream_map_enum.nextElement(); begin = tmpstr.indexOf("itag="); if (begin != -1) { end = tmpstr.indexOf("&amp;", begin + 5); if (end == -1) { end = tmpstr.length(); } int fmt = Integer.parseInt(tmpstr.substring(begin + 5, end)); if (fmt == 35) { begin = tmpstr.indexOf("url="); if (begin != -1) { end = tmpstr.indexOf("&amp;", begin + 4); if (end == -1) { end = tmpstr.length(); } result = UtilClass.URLDecode(tmpstr.substring(begin + 4, end)); this.result=result; break; } } } } try { URL u = new URL(result); HttpURLConnection c = (HttpURLConnection) u.openConnection(); c.setRequestMethod("GET"); /* c.setRequestProperty("Youtubedl-no-compression", "True"); c.setRequestProperty("User-Agent", "YouTube");*/ c.setDoOutput(true); c.connect(); FileOutputStream f=new FileOutputStream(new File("/sdcard/3.flv")); InputStream in=c.getInputStream(); byte[] buffer=new byte[1024]; int sz = 0; while ( (sz = in.read(buffer)) &gt; 0 ) { f.write(buffer,0, sz); } f.close(); } catch (MalformedURLException e) { new RuntimeException(); } catch (IOException e) { new RuntimeException(); } return null; } protected void onPostExecute(Void unused) { dialog.dismiss(); } } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); new ReceivingDataFromYoutube().execute(); } } </code></pre>
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    1. COHii can you share how you solve this ? How to download youtube video ?
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    2. CO@Денис Нагибин hey can u pls tell how it works because i want now how it works..i just copy your code but it give error on "UtilClass".
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