Download files in queue in Android

Question

How do I download multiple files in a queue one by one! I\'m using this as a sample code, since. I would be passing the URLs to download in Strings from my local DB dynamic

Answer 1

From API 11 up, a good approach is to use a FixedThreadPool with async tasks. Do once:

ExecutorService threadPoolExecutor = Executors.newFixedThreadPool(3);

Where 3 is the number of downloads you want to run at the same time. It will queueu the task if there are already 3 downloads running, and automatically handle the task later. Launch your async tasks with:

yourAsynTask.executeOnExecutor(threadPoolExecutor, params);

Params is probably the url you wish to connect to. You can read it out in the onPostExecute of your asynctask, and connect to the server using a HttpURLConnection.

Make sure you call down this on shutdown:

threadPoolExecutor.shutdown()