Home/ Questions/Q 8921613
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-15T06:35:22+00:00

AsyncTask’s are mostly presented as a solution to running well-defined computations or tasks. The

  • 0

AsyncTask’s are mostly presented as a solution to running well-defined computations or tasks. The classic example is a downloader as an AsyncTask which is fed a URL, updates its progress to the UI, and exits when completed. Is there a reasonable (not-too-hacky) way to add/change input to the AsyncTask while it’s running? Perhaps setting up a queue of items that the AsyncTask has to process and then altering that queue from the main application…? Would that ‘break’ the AsyncTask model for example?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    Yes you can. AsyncTask is a thread that has already buited in communication mechanisms to the UI thread. However this communication is only from AsyncTask to UI and not in the reverse direction as you need.

    Also, the maximum number of simultaneous AsyncTask in Android is 1 in several API versions.

    To implement thread safe communication from UI to AsyncTask you will need to use Handler or BlockingQueue classes.

    Personally, I wouldn’t do it. I would use directly a Thread with a Handler or BlockingQueue.

    Regards.

    • 0