How to set image from Url using AsyncTask?

Question

I\'m a newbie programmer an I\'m making an android program that displays an image on ImageView from a given url. My problem is how do you use this on the AsyncTask?

Thes

Answer 1

Here is the code for the Aynctask implementation Make your drawable object as global in Aynctask class.

Class MyDownloader extends AsyncTask{

    Drawable drawable;    
    @Override
    public String doInBackground(Void... args){

        drawable = LoadImageFromWeb("http://www.pagasa.dost.gov.ph/wb/sat_images/satellite.gif");
        return null; // here you can pass any string on response as on error or on success

    }

    public void onPostExecute(String result){

        if(drawable!=null){

            imgView.setImageDrawable(drawable);

        }

    }

}

now create object of this class and execute it

private void satellite() {
    // TODO Auto-generated method stub
  ImageView imgView =(ImageView)findViewById(R.id.satellite);
  new MyDownloader.execute();

}

Here is good example link for caching the image check out this link and example

https://github.com/novoda/ImageLoader