how to pass the result of asynctask onpostexecute method into the parent activity android

Question

I am developing an application in which i need to send the value of the asynctask's onPostExecute method's result in to the previous activity , ie the activity in which the aync task is being called.pls put some codes. Anyhelp is appreciated

Answer 1

Two ways:

1. Declare class extending AsyncTask as private class in parent Activity
2. Pass Handler or Activity itself as param of class extending AsyncTask

If I were you, I'd follow the first option.
Look at DOCS:

class MyActivitySubclass extends Activity {

    function runOnPostExecute(){
        // whatever
    }

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

        void doInBackground(Void... params){
            // do your background stuff
        }

        void onPostExecute(Void... result){
            runOnPostExecute();
        }

    }

}

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Note 1

Code placed in body of function onPostExecute is already run on Activity thread, you should just mention that this keywords leads to MyTask.this and not MyActivitySubclass.this