Using an AsyncTask inside a Service Class?

Question

I have to upload data to a server. I am using a service that is running on the same process as my application. Should I use a Separate thread for upload process or Should I

Answer 1

Use AsyncTask in a service in android

package ​com.emergingandroidtech.Services;

import ​android.app.Service;

import​ android.content.Intent;

import​ android.os.IBinder;

import ​android.util.Log;

import​ android.widget.Toast;

import​ java.net.MalformedURLException;

import​ java.net.URL;

import android.os.AsyncTask;

public​ class ​MyService ​extends​ Service​

{

​​​​@Override

​​​​public​ IBinder ​onBind(Intent​ arg0)​

{

​​​​​​​​return ​null;

​​​​}

​​​​

@Override ​

​​​public​ int ​onStartCommand(Intent ​intent,​int​ flags,​int ​startId)​

{

​​​​​​​​

//​We​ want ​this ​service ​to ​continue ​running ​until​ it ​is ​explicitly

​​​​​​​​//​stopped,​so​ return ​sticky. ​​​​​​​​

Toast.makeText(this,​“Service​Started”,​Toast.LENGTH_LONG).show();

​​​​​​​​try

{

​​​​​​​​​​​​new DoBackgroundTask().execute(

​​​​​​​​​​​​​​​new URL(“http://www.google.com/somefiles.pdf”),

​​​​​​​​​​​​​​​​​​​​new URL(“http://emergingandroidtech.blogspot.in”)); ​​​​​​​​

}

catch (MalformedURLException e)

{

​​​​​​​​​​​​e.printStackTrace();

​​​​​​​​}

​​​​​​​​return ​START_STICKY; ​

​​​}

​​​​

@Override

​​​​public ​void ​onDestroy()

​{

​​​​​​​​super.onDestroy();

​​​​​​​​Toast.makeText(this,​“Service​Destroyed”,​Toast.LENGTH_LONG).show(); ​​​

​} ​​​​

​​​​private ​int ​DownloadFile(URL​ url)

​{

​try​

{

​​​​​​​​​​​​//---simulate​ taking ​some​time ​to ​download ​a​ file--- ​​​​​​​​​​​​

Thread.sleep(5000);

​​​​​​​​}

​catch​(InterruptedException ​e)​

{

​​​​​​​​​​​​e.printStackTrace(); ​

​​​​​​​}

​​​​​​​​//---return ​an ​arbitrary ​number​ representing ​

​​​​​​//​the ​size​ of ​the ​file ​downloaded--- ​

​​​​​​​return​ 100; ​

​​​}

​​​​

private class DoBackgroundTask extends AsyncTask

{

​​​​​​​​protected Long doInBackground(URL... urls)

{

 ​​​​​​​​​​​​int count = urls.length;

​​​​​​​​​​​​long totalBytesDownloaded = 0;

​​​​​​​​​​​​for (int i = 0; i < count; i++)

{

​​​​​​​​​​​​​​​​totalBytesDownloaded += DownloadFile(urls[i]);

​​​​​​​​​​​​​​​​//---calculate percentage downloaded and

​​​​​​​​​​​​​​​​// report its progress--- ​

​​​​​​​​​​​​​​​publishProgress((int) (((i+1) / (float) count) * 100)); ​

​​​​​​​​​​​}

​​​​​​​​​​​​return totalBytesDownloaded; ​​

​​​​​​}

​​​​​​​​

protected void onProgressUpdate(Integer... progress)

{

​​​​​​​​​​​​Log.d(“Downloading files”, ​​​​​​​​​​​​​​​​​​​​String.valueOf(progress[0]) + “% downloaded”); ​​​​​​​​​​​​

Toast.makeText(getBaseContext(), ​​​​​​​​​​​​​​​​String.valueOf(progress[0]) + “% downloaded”, ​​​​​​​​​​​​​​​​Toast.LENGTH_LONG).show(); ​​​​​​​​

}

​​​​​​​​

protected void onPostExecute(Long result)

{

​​​​​​​​​​​​Toast.makeText(getBaseContext(), ​​​​​​​​​​​​​​​​​​​​“Downloaded “ + result + “ bytes”, ​​​​​​​​​​​​​​​​​​​​Toast.LENGTH_LONG).show(); ​​

​​​​​​​​​​stopSelf();

​​​​​​​​} ​

​​​}

} 

Try this it may be work. Thank you.