Executing Multiple AsyncTask's Parallely

Question

I'm using Android SDK 4.0.3 API15 and I want to run multiple AsyncTasks parallely. I'm getting my data from web server and animating(10 fps) it real-time. But depending on user operations I need to send some data to web server also. When this occurs my animation pauses for a short time (sending data gets into queue and getting data waits it to finish ) and therefore I can't catch the real-time.

This answer is quite explaining but I couldn't make it work. So any help will be very appreciated.

I think I need to use this function to achieve that:

AsyncTask.executeOnExecutor(Executor exec, Params... params) 

But I can't pass an executor as a parameter and I can't instantiate an executor. This is my AsyncTask class:

public class GetPlayers extends AsyncTask<String, Void, String> {     @Override     protected String doInBackground(String... urls) {          Thread.currentThread().setPriority(Thread.MAX_PRIORITY);          rawData="";         for (String url : urls) {             DefaultHttpClient client = new DefaultHttpClient();             HttpGet httpGet = new HttpGet(url);             try {                 HttpResponse execute = client.execute(httpGet);                 InputStream content = execute.getEntity().getContent();                  BufferedReader buffer = new BufferedReader(new InputStreamReader(content));                 if((rawData = buffer.readLine()) == null){                     rawData = "error";                 }              } catch (Exception e) {                 e.printStackTrace();             }         }         return rawData;      }      @Override     protected void onPostExecute(String result) {         manipulate();     } } 

And I execute it like this:

GetPlayers task = new GetPlayers(); requestString = "web adress is here..."; task.execute(new String[] { requestString }); 

Answer 1

This is how I do that:

if( Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB ) {     new MyAsyncTask().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); } else {     new MyAsyncTask().execute(); } 

where MyAsyncTask is regular AsyncTask subclass. Or you can wrap this all in helper class:

class TaskHelper {      public static <P, T extends AsyncTask<P, ?, ?>> void execute(T task) {         execute(task, (P[]) null);     }      @SuppressLint("NewApi")     public static <P, T extends AsyncTask<P, ?, ?>> void execute(T task, P... params) {         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {             task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, params);         } else {             task.execute(params);         }     } } 

and then just do:

TaskHelper.execute( new MyTask() ); 

or

TaskHelper.execute( new MyTask(), args ); 

or

TaskHelper.execute( new MyTask(constructorParams), args );