Downloading multiple files one by one using AsyncTask?

Question

I\'m trying to download multiple files one by one (file is downloaded, we start downloading the next file). Using this method I can keep track of the files being downloaded.

Answer 1

package com.ProgressDialogDemo1;

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;

import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ProgressBar;

public class ProgressDialogDemoActivity extends Activity {

    public static final int DIALOG_DOWNLOAD_PROGRESS = 0;
    private Button startBtn;
    private ProgressDialog mProgressDialog;
    ProgressBar prgBar1;
    ImageView imgv1;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        imgv1 = (ImageView) findViewById(R.id.imgv1);
        startBtn = (Button)findViewById(R.id.startBtn);
        prgBar1 = (ProgressBar) findViewById(R.id.prgBar1);
        prgBar1.setMax(100);

        startBtn.setOnClickListener(new OnClickListener(){
            public void onClick(View v) {
                    startDownload();
            }
        });
    }

    private void startDownload() {
        String[] url = {"http://animal.discovery.com/birds/peacock/pictures/peacock-picture.jpg",
                    "http://www.funrocker.com/blog/wp-content/uploads/2010/04/Animals-Wild-Life-Jungle-FunRocker.Com-03.jpg",
                    "http://www.thewallpapers.org/photo/5790/Nature_Wallpapers-037.jpg",
                    "http://2.bp.blogspot.com/-j56yaqpfjVE/TnzTjcqnCjI/AAAAAAAAGPM/MzqmczFkC30/s1600/natural-pictures.jpg",
                    "http://www.fantasy-and-art.com/wp-content/gallery/nature-wallpapers/red-tree-wallpaper-hd.jpg",
                    "http://upload.wikimedia.org/wikipedia/commons/thumb/1/1a/Bachalpseeflowers.jpg/300px-Bachalpseeflowers.jpg"};
        DownloadFileAsync dloadFAsync = new DownloadFileAsync(url);
        dloadFAsync.execute(url);
    }
    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {
        case DIALOG_DOWNLOAD_PROGRESS:
            mProgressDialog = new ProgressDialog(this);
            mProgressDialog.setCancelable(false);
            return mProgressDialog;
        default:
            return null;
        }
    }

    //              Async  Task
    class DownloadFileAsync extends AsyncTask {
        int current=0;
        String[] paths;
        String fpath;
        boolean show = false;

        public DownloadFileAsync(String[] paths) {
            super();
            this.paths = paths;
            for(int i=0; i