How To Make A Splash Screen And Run Listview Processes At Background?

I have an app which loads the data from sqlite db, does some calculations with it and presents it using listview with adapter. So this part is ready and is working. In case when th

Solution 1:

 public class SplahActivity extends Activity {

        public static final int Tick = 1000;
        public static final int Complete = 5000;
        ArrayList<String> data;

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_splash);

            data = new ArrayList<>();
            AsyncTaskRunner runner = new AsyncTaskRunner();
            String sleepTime = time.getText().toString();
            runner.execute(sleepTime);

        }

        private class AsyncTaskRunner extends AsyncTask<String, String, String> {

            private String resp;
            @Override
            protected void onPreExecute() {
                // Things to be done before execution of long running operation. For
                // example showing ProgessDialog
            }

            @Override
            protected String doInBackground(String... params) {

                // data and save it in array
               // data = Reveice data from db
                return resp;
            }
            @Override
            protected void onPostExecute(String result) {
                // execution of result of Long time consuming operation

                Intent i = new Intent(ActivityName.this,SecondScreen.class);
                startActivity(i);
            }
        }
    }