Easily do background tasks, update UI during start, inbetween and in the end.

Android AsyncTask Min

public class MainActivity extends AppCompatActivity {

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

        new BgAsyncTask().execute(null, null, null);
    }

    class BgAsyncTask extends AsyncTask<Void, Void, Void> {

        @Override
        protected void onPreExecute() {
            // do something
        }

        @Override
        protected Void doInBackground(Void... params) {
            publishProgress(null);
            return null;
        }

        @Override
        protected void onProgressUpdate(Void... values) {
            // do something
        }

        @Override
        protected void onPostExecute(Void aVoid) {
            // do something
        }
    }
    
}




@Override
protected void onDestroy() {
    if (bgAsyncTask != null) {
        bgAsyncTask.cancel(true);
    }
    super.onDestroy();
}