Most concise way to create an Async Task?

Question

I need to perform a very simple operation that involve network. I know that this must be done with an Async Task, because run a task that involves Network operations on main thread is bad.

Since is pretty verbose using the classic way

private class LongOperation extends AsyncTask<String, Void, String> {

        @Override
        protected String doInBackground(String... params) {
            //to do
            return "Executed";
        }

        @Override
        protected void onPostExecute(String result) {
            //to do
        }

        @Override
        protected void onPreExecute() {}

        @Override
        protected void onProgressUpdate(Void... values) {}
    }

for a method static method invocation that must download only few bits

I'm wondering if there is some more concise form or alternative that I could use.

You do not have to override all those menber functions. Only doInBackground() will do. — greenapps, Mar 14 '18 at 14:38

score 1 · Answer 1 · answered Mar 14 '18 at 14:32

1

You don't need an AsyncTask. It is just a convenience to use because it already has callback methods.

You can create a new Thread and execute your network call there.

answered Mar 14 '18 at 14:32

Murat Karagöz

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score 1 · Answer 2 · edited Mar 22 '18 at 04:49

1

There are many ways to create a worker thread. It depends on what are you doing with network.

If you just want to do simple network operations such as download some JSON data then get it back to update UI: use AsyncTask.
If you want to do long network operations which involve moderate to large amounts of data (either uploading or downloading): use Thread.
If you want to continuously send/receive message to/from the Internet, use HandlerThread.

So in conclusion: AsyncTask is already the simplest and easiest to use. Beside, you don't need to override all methods, just override doInBackGround() and onPostExecute() if you want to receive data.

See: Asynctask vs Thread in android

edited Mar 22 '18 at 04:49

Pang

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answered Mar 14 '18 at 15:02

nhoxbypass

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@greenapps what do you mean? – nhoxbypass Mar 14 '18 at 15:07
Well what do you advice for them? – greenapps Mar 14 '18 at 15:09
@greenapps do you see my conclusion? I'm cannot just give advice without telling WHY!. – nhoxbypass Mar 14 '18 at 15:11
@greenapps it will take you 10sec to open the link and have your answer (even if i agree that should have been copied in the answer) – Kaddath Mar 14 '18 at 15:17
For `long network operations` where you advise a Thread i would use a Service. Wel... a Thread in a Service ;-). – greenapps Mar 14 '18 at 15:21
@greenapps It depends. `Service` a very different context to threading. – nhoxbypass Mar 14 '18 at 15:22

score 0 · Answer 3 · answered Mar 14 '18 at 15:08

0

You can always use AsyncTask.execute(() -> { /* network operations */ });, the downside is you don't get any of the callbacks so I tend to only use this when prototyping or with very simple tasks.

answered Mar 14 '18 at 15:08

LambergaR

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score 0 · Answer 4 · answered Mar 14 '18 at 15:09

Use an anonymous class inside a method:

public void asyncOperation () {
    new AsyncTask<Task, Void, Boolean>() {

        @Override
        protected Boolean doInBackground(String... params) {
            // Your background operation, network, database, etc
            return true;
        }
    }.execute();
}

Most concise way to create an Async Task?

4 Answers4