i am downloading data from website using asynctask and my code for async task

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Asked: May 22, 20262026-05-22T12:29:42+00:00 2026-05-22T12:29:42+00:00

i am downloading data from website using asynctask and my code for async task

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i am downloading data from website using asynctask and
my code for async task is below

public class getSyncTaskInBackground extends AsyncTask<Void, Void, Void>{
    @Override
    protected Void doInBackground(Void... params) {
        getSynchronizeTask();
        return null;
    }

    @Override
    protected void onPostExecute(Void result) {

        if(progressDialog != null && progressDialog.isShowing()) {
            progressDialog.dismiss();
        }
        displaySynchronizetask();
        super.onPostExecute(result);
    }

    @Override
    protected void onPreExecute() {
        progressDialog = ProgressDialog.show(synchronize.this, "Tasks are synchroning...", "Please wait...");
        super.onPreExecute();
    }

    @Override
    protected void onCancelled() {
        super.onCancelled();
        if(progressDialog != null && progressDialog.isShowing()) {
            progressDialog.dismiss();
        }
    }

}

this thread takes more time to complete task
so if i want to cancel this thread in between of process then i had write this code of back button pressed
or if progressbar is already dismiss then i want to close activity by calling finish();
my code for back button is as below

@Override
public void onBackPressed() { 
    syncThread.cancel(true); //syncThread is the object of getSyncTaskInBackground
if(progressDialog != null && progressDialog.isShowing()) {
    progressDialog.dismiss();
} else {
    finish();   
}
}

Now when i pressed back button then the progressdialog is not dismiss
is any mistake in mycode ? is any way to complete my need ?
please help me