AsyncTask no funciona correctamente cuando se llama repetidamente desde un hilo

I am making an app which sends update to web server when a songs starts playing...I do the the web server update through asynctask however some times some information gets skipped and some infos are sent repeatedly. In some case asyntask remain in running state making it not executing after that. Main thread works good.

I declared the instance like this in MainActivity

    private static AsyncTask<Void, Void, Void> mTask = null;

code for Asynctask is

private class SendingData extends AsyncTask<Void,Void,Void>{

         protected void onPreExecute(){
            //some task              
        protected void onPostExecute(Void params){
            Log.d("Tesing","After Post");
        protected Void doInBackground(Void... arg0) {
            return null;


My call to asynctask when a new song changes in main thread. This is a repetitive call

 if(mTask.getStatus() == AsyncTask.Status.FINISHED){
                   // My AsyncTask is done and onPostExecute was called
                   Log.d("AsyncTask Status","Finished");
                  mTask = new SendingData();

              }else if(mTask.getStatus() == AsyncTask.Status.PENDING){
                  Log.d("AsyncTask Status","Pending");
                  try {
                } catch (InterruptedException e) {
                    // TODO Auto-generated catch block

preguntado el 27 de noviembre de 13 a las 05:11

1 Respuestas

Declaraste tu AsyncTask as static variable. This means that your references will get mixed up, i.e. when you start a new AsyncTask, you will overwrite the previous reference with a new one.

respondido 27 nov., 13:05

Shall I make a new reference each time when encounter or have to call asynctask? how would i check the status of the previously called asynctask or do i just call a new one without thinking about the previous one like below new SendingData().executeOnExecutor(AsyncTask.SERIAL_EXECUTOR); - Saty

which is one is better AsyncTask.SERIAL_EXECUTOR or AsyncTask.THREAD_POOL_EXECUTOR for repetitive task? Please explain me. - Saty

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