How to really cancel Async task?

Question

I have progressDialog, which is used for my AsyncTask, while downloading file. In AsyncTask I have implemented theese methods:

@Override
protected void onCancelled() {
  handleOnCancelled(this.result);
  super.onCancelled();
}


@Override
protected void onCancelled(String result) {
    super.onCancelled(result);

}

In my activty, I am declaring mProgressDialog and giving it onCancelListener:

mProgressDialog.setOnCancelListener(new OnCancelListener() {

    @Override
    public void onCancel(DialogInterface dialog) {
       xml.cancel(true);


    }
});

When I press back key, mProgressDialog is closed, onCancel (method above) is called, but Async Task still runs on the background. How to solve it?

Thanks

possible duplicate: http://stackoverflow.com/questions/6039158/android-cancel-async-task — royB, Mar 11 '15 at 13:58

score 3 · Accepted Answer · answered Mar 11 '15 at 13:53

You need to repeatedly check the boolean isCanceled() within your doInBackground() method. If this method returns true, you should immediately exit any loop or background work being done by the task.

Refer to the docs.

Ashutosh Salodkar · Answer 2 · 2015-05-20T10:11:31.210

0

Try This

if(myAsyncTask.getStatus().equals(AsyncTask.Status.RUNNING))
{    
      myAsyncTask.cancel(true);
}

edited May 20 '15 at 10:11

answered Mar 11 '15 at 14:00

Ashutosh Salodkar

211
2
18

score 0 · Answer 3 · answered Mar 11 '15 at 14:08

0

Check for isCanceled() in the async task while you are downloading.

answered Mar 11 '15 at 14:08

danny117

5,581
1
26
35

How to really cancel Async task?

3 Answers3