Return value from AsyncTask - android-asynctask

Question

I have a class AsyncTask as an inner class to a fragment.
public class MyAsyncTask extends AsyncTask<String,double[],double[]> {
double posScoreb = 0.0;
double negScoreb= 0.0;
public AsyncResponse delegate = null;
#Override
protected void onPreExecute() {
progressBar.setVisibility(View.VISIBLE);}
#Override
protected double[] doInBackground(String... params) {
s = new SentiCalc(getActivity().getAssets());
s.setInput(String.valueOf(params[0]));
double[] set = new double[]{};
try {
set = s.getSenti();
} catch (IOException e) {
e.printStackTrace();
}
posScoreb = set[1];
negScoreb = set[2];
return new double[]{posScoreb,negScoreb};
}
#Override
protected void onPostExecute(double[] result) {
progressBar.setVisibility(View.GONE);
result[0] = posScoreb;
result[1] = negScoreb;
delegate.processFinish(result);
Toast.makeText(getActivity(), "Done",Toast.LENGTH_LONG).show();
}
}
I am calling it from a method saveNote() inside the same fragment.`
asyncTask = new MyAsyncTask() ;
asyncTask.delegate =this;
asyncTask.execute(content);
I want AsyncTask class to return values inside a result(double array) to saveNote method. As shown in this, How to get the result of OnPostExecute() to main activity because AsyncTask is a separate class?.
I created an interface and made my fragment class to implement it.
public interface AsyncResponse {
void processFinish(double[] output);}
As a result of which I am able to get the result inside a method processFinish
within the same fragment.
#Override
public void processFinish(double[] output) {
double posScore,negScore;
posScore = output[0];
negScore = output[1];
Toast.makeText(getActivity(),String.valueOf(posScore),Toast.LENGTH_LONG).show();
Toast.makeText(getActivity(), String.valueOf(negScore), Toast.LENGTH_LONG).show();
}
How can I get this result inside a saveNote method from which I am calling AsyncTask class?