Real difference between AsyncTask and Thread

Question

I have been reading Android documentation (AsyncTask, Thread) and vogella tutorial about this matter, but I have doubts yet.

For example, I want to send a message fr

Answer 1

All other answers here are not complete, there is a big difference between AsyncTask and Thread, i.e.

Thread can be triggered from any thread, main(UI) or background; but AsyncTask must be triggered from main thread.

Also on lower API of Android(not sure, maybe API level < 11), one instance of AsyncTask can be executed only once.

For more information read Difference between Android Service, Thread, IntentService and AsyncTask

In general

Thread

• Long task in general.

• For tasks in parallel use Multiple threads (traditional mechanisms)

AsyncTask

• Small task having to communicate with main thread.

• For tasks in parallel use multiple instances OR Executor