download file from server

download: http://www.mediafire.com/?bufw8m1600bdu4y


package com.coderzheaven.pack;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import android.app.Activity;
import android.app.Dialog;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.Window;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.widget.Toast;

public class DownloadFileDemo1 extends Activity
{

    ProgressBar pb;
    Dialog dialog;
    int downloadedSize = 0;
    int totalSize = 0;
    TextView cur_val;
    String dwnload_file_path = "http://coderzheaven.com/sample_folder/sample_file.png";
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
     
        Button b = (Button) findViewById(R.id.b1);
        b.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
showProgress(dwnload_file_path);
     
       new Thread(new Runnable() {
           public void run() {
            downloadFile();
           }
         }).start();
}
});
    }
   
    void downloadFile(){
   
    try {
    URL url = new URL(dwnload_file_path);
    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
    urlConnection.setRequestMethod("GET");
    urlConnection.setDoOutput(true);

    //connect
    urlConnection.connect();

    //set the path where we want to save the file    
    File SDCardRoot = Environment.getExternalStorageDirectory();
    //create a new file, to save the downloaded file
    File file = new File(SDCardRoot,"downloaded_file.png");

    FileOutputStream fileOutput = new FileOutputStream(file);

    //Stream used for reading the data from the internet
    InputStream inputStream = urlConnection.getInputStream();

    //this is the total size of the file which we are downloading
    totalSize = urlConnection.getContentLength();

    runOnUiThread(new Runnable() {
   public void run() {
    pb.setMax(totalSize);
   }  
});
   
    //create a buffer...
    byte[] buffer = new byte[1024];
    int bufferLength = 0;

    while ( (bufferLength = inputStream.read(buffer)) > 0 ) {
    fileOutput.write(buffer, 0, bufferLength);
    downloadedSize += bufferLength;
    // update the progressbar //
    runOnUiThread(new Runnable() {
       public void run() {
        pb.setProgress(downloadedSize);
        float per = ((float)downloadedSize/totalSize) * 100;
        cur_val.setText("Downloaded " + downloadedSize + "KB / " + totalSize + "KB (" + (int)per + "%)" );
       }
    });
    }
    //close the output stream when complete //
    fileOutput.close();
    runOnUiThread(new Runnable() {
   public void run() {
    // pb.dismiss(); // if you want close it..
   }
});    
   
    } catch (final MalformedURLException e) {
    showError("Error : MalformedURLException " + e);  
    e.printStackTrace();
    } catch (final IOException e) {
    showError("Error : IOException " + e);  
    e.printStackTrace();
    }
    catch (final Exception e) {
    showError("Error : Please check your internet connection " + e);
    }    
    }
   
    void showError(final String err){
    runOnUiThread(new Runnable() {
   public void run() {
    Toast.makeText(DownloadFileDemo1.this, err, Toast.LENGTH_LONG).show();
   }
});
    }
   
    void showProgress(String file_path){
    dialog = new Dialog(DownloadFileDemo1.this);
    dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
    dialog.setContentView(R.layout.myprogressdialog);
    dialog.setTitle("Download Progress");

    TextView text = (TextView) dialog.findViewById(R.id.tv1);
    text.setText("Downloading file from ... " + file_path);
    cur_val = (TextView) dialog.findViewById(R.id.cur_pg_tv);
    cur_val.setText("Starting download...");
    dialog.show();
   
    pb = (ProgressBar)dialog.findViewById(R.id.progress_bar);
    pb.setProgress(0);
    pb.setProgressDrawable(getResources().getDrawable(R.drawable.green_progress));
    }
}