AsyncTask parameters. How to get them right?

Question: How to memorize the parameters used in AsyncTask?

Answer: Don’t.

What is an AsyncTask?

An AsyncTask is background task which runs in the background thread. It takes an Input, performs Progress and gives Output.

ie AsyncTask<Input,Progress,Output>.

What makes it so confusing?

In my opinion, the main source of confusion comes when we try to memorize the parameters in the AsyncTask.
The key is DON’T MEMORIZE.
If you can visualize what your task really needs to do then writing the AsyncTask with the correct signature would be a piece of cake.
Just figure out what your Input, Progress, and Output are and you will be good to go.

Example:

What is the relationship?

Between AsyncTask and doInBackground()

doInBackground() and onPostExecute(),onProgressUpdate()` are also related

Show me the code!

How will you run this Task?

new DownLoadTask().execute("Paradise.mp3");

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