How to Download an image in android

The following code shows how to download a image from a particular URL.

The download class is shown below

//Download Class

package com.sliit.siv;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

import org.apache.http.util.ByteArrayBuffer;

import android.os.Environment;
import android.util.Log;

public class DownloadClass {

private static final String TAG = "FileManager";
private final static String PATH = Environment.getExternalStorageDirectory().getPath();

private static String Path= "";
private static String Name= "";
private static String Directory= "";

public static void DownloadResources(String tempPath,String tempName, String tempDirectory)
{
Path=tempPath;
Name=tempName;
Directory=tempDirectory;

startDownloadingThread();
}

public static void startDownloadingThread()
{
Thread thread = new Thread()
{
@Override
public void run()
{
synchronized (this)
    {    

try
{
DownloadFromUrl(Path,Name,Directory);
}

catch (Exception e)
{
Log.d(TAG, "FK YY: " + e);
}
finally
{
   
}
    }
}
};

thread.start();
}

public static File DownloadFromUrl(String fileURL, String fileName, String courseDirectoryAndType)   //this is the downloader method
{
File file = null;
try
{
URL url = new URL(fileURL); //you can write here any link

boolean mExternalStorageAvailable = false;
        boolean mExternalStorageWriteable = false;
        String state = Environment.getExternalStorageState();

        if (Environment.MEDIA_MOUNTED.equals(state))
        {
           // We can read and write the file
           mExternalStorageAvailable = mExternalStorageWriteable = true;
        }
        else if (Environment.MEDIA_MOUNTED_READ_ONLY.equals(state))
        {
           // We can only read the file
           mExternalStorageAvailable = true;
           mExternalStorageWriteable = false;
        }
        else
        {
           //It may be one of many other states

           mExternalStorageAvailable = mExternalStorageWriteable = false;
        }        
        if (mExternalStorageAvailable || mExternalStorageWriteable)
        {
File fileDirectory = new File(PATH + "/Moodle/" + courseDirectoryAndType); // create a File object for the parent directory

fileDirectory.mkdirs(); // if directory is not exist, create it.

file = new File(fileDirectory, fileName); // create a File object for the output file

URLConnection ucon = url.openConnection(); // Open a connection to that URL.

InputStream is = ucon.getInputStream(); // Define InputStreams to read from the URLConnection.
BufferedInputStream bis = new BufferedInputStream(is);

ByteArrayBuffer baf = new ByteArrayBuffer(50);  //Read bytes to the Buffer until there is nothing more to read(-1).
int current = 0;

while ((current = bis.read()) != -1)
{
baf.append((byte) current);
}

FileOutputStream fos = new FileOutputStream(file); //convert byte to file(.doc,.ppt or .pdf)
fos.write(baf.toByteArray());
fos.close();
        }

} catch (IOException e)
{
Log.d(TAG, "Error: " + e);
}
finally
{

}

return file;
}

public boolean checkFileAvailability(String localPath)
{
boolean status=false;

     File sdcard = Environment.getExternalStorageDirectory(); //get the SDcard path
     File file = new File(sdcard,localPath); //set original file path
   
     if(file.exists())
     {
     status = true;     //if file exist set status 'true'
     }
       
     else
     {
     //status = false;
     }
   
     return status;
}


///oookkk------------------------------------------------------------------------------------------------


public static StringBuilder inputStreamToString(InputStream is)
{
//System.out.println("OK 1");
    String rLine = "";
    StringBuilder answer = new StringBuilder();
    BufferedReader rd = new BufferedReader(new InputStreamReader(is));
   
    try {
     while ((rLine = rd.readLine()) != null) {
      answer.append(rLine);
       }
    }
   
    catch (IOException e) {
        e.printStackTrace();
     }
    //System.out.println("OK 2");
    return answer;
}


//Noifications UI

}

The following is the XML file

//Download.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <LinearLayout

        android:id="@+id/linearLayout1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content" >

        <Button

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:onClick="downloadPicture"

            android:text="Click to start download" >

        </Button>

        <Button

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:onClick="resetPicture"

            android:text="Reset Picture" >

        </Button>

    </LinearLayout>

    <ImageView

        android:id="@+id/imageView2"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        android:src="@drawable/ic_launcher" >

    </ImageView>

</LinearLayout> 

The following changes are needed to do to Manifest.xml

//Manifest.xml

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

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /