线程设置后，Asynctask没有超时，在一段时间后取消它

Question

I am trying to cancel a log run AsyncTask if a certain period of time exceeds (if AsyncTask is not automatically finised)

Below is the code where I setup my task to start with timeout

final ProfileDesc pdsc = new ProfileDesc();
    pdsc.execute();
    Thread th_pdsc = new Thread(){
        public void run()
        {
            try{
                pdsc.get(120000, TimeUnit.MILLISECONDS);
            }
            catch(Exception e){
                pdsc.cancel(true);
                ((Activity)context).runOnUiThread(new Runnable() {

                    @Override
                    public void run() {
                    Toast.makeText(context, "Download Time out. Please Try again later.", Toast.LENGTH_LONG).show();

                    }
                });
            }
        }
    };
    th_pdsc.start();

below is the code for my AsynTask

private class ProfileDesc extends AsyncTask<Void, Void, Void> {
protected void onPreExecute() {
        dialogue = new ProgressDialog(MainActivity.this);
        dialogue.setTitle("Processing");
        dialogue.setMessage("Getting Header Information");
        dialogue.setIndeterminate(true);
        dialogue.setCancelable(false);
        dialogue.show();
    }
protected void onPostExecute(Void params) {
        super.onPostExecute(params);
            dialogue.dismiss();
}
protected Void doInBackground(Void... arg0) {
//long run work
return null;
}
}

After two minutes it's still running. How can I set up the time out? Note: I have followed this link of Stack Overflow for this code.

Answer 1

What you had

 ProfileDesc pdsc = new ProfileDesc();
 pdsc.execute();

was enough. There is no need for a Thread. doInBackground is invoked on the background thread. So you can do you Network operations in doInbackgorund .

Secondly calling get makes AsyncTask no more Asynchronous as it blocks the ui thread

get(long timeout, TimeUnit unit) Waits if necessary for at most the given time for the computation to complete, and then retrieves its result

I guess you have misunderstood the use of Asynctask. Read the docs

http://developer.android.com/reference/android/os/AsyncTask.html

You may want to check this

Stop AsyncTask doInBackground method

Answer 2

Here new thread is not needed.Just remove "dialogue.setIndeterminate(true)". It means the "loading amount" is not measured.I think it's creating the problem.