Why do you start 21 threads? Just start one task and put your loop
inside doInBackground().
On Tue, Jun 2, 2009 at 2:51 AM, MIMRAN D <david.mim...@gmail.com> wrote:
>
> Hi all,
>
> I am struck with an interesting problem.
>
> I have a listview with 30 items which contains an image (from a web
> server) and a text.
> So, when I load pictures, I start a new thread with the AsyncTask
> class to do not block the UI thread.
> But, if I have more than 20 threads at the same times, I have a
> RejectedExecutionException from the ThreadPoolExecutor.
> To resume, I have simplify my code, for example:
>
> for (int i = 0; i < 21; i++) {
> new DownloadImageTask().execute("Test");
> }
>
> private class DownloadImageTask extends AsyncTask<String, Integer,
> Bitmap> {
>
> public DownloadImageTask() {
> super();
> }
>
> �...@override
> protected Bitmap doInBackground(String... urls) {
> try {
> System.out.println("execute");
> Thread.sleep(10000);
> } catch (InterruptedException e) {
> e.printStackTrace();
> }
> return null;
> }
>
> �...@override
> protected void onPostExecute(Bitmap result) {
> }
> }
>
> So, I think we can run 10 thread max and we have a pool of 10 thread
> max.
>
> Can someone help me understand if there are limits on AsyncTask? If we
> can modify the number of maw thread execution and the number max of
> the pool? Or other idea ?
>
> Thanks
> David
>
> >
>
--
Romain Guy
Android framework engineer
romain...@android.com
Note: please don't send private questions to me, as I don't have time
to provide private support. All such questions should be posted on
public forums, where I and others can see and answer them
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