Question

This is, what I think is a basic java question here:

This is for an Android project. I have this setup:

 public class MyFragmentActivity extends FragmentActivity implements
    ActionBar.TabListener {

     // lots of code edited out


    public static class RateFragment extends Fragment {

             // lots of code edited out

         class InsertTask extends AsyncTask<String, String, Void> {

               protected void onPostExecute(Void v) { {

                // I need to access ReviewTask here
                new ReviewTask().execute();

               } 

         }


    }

    public static class ReviewFragment extendsListFragment {

              class ReviewTask extends AsyncTask<String, String, Void> {

                  // code

              }


    }


}

I am really asking a basic Java question. I know its not the best method in Android.

If you must know what I am doing: (If this is confusing, this information is low priority, just for some context) I call InsertTask when a button is pressed in RateFragment and inserts data into a MySQL database. This is what I want to do in the above code: In InsertTask, at the end, call ReviewTask in the other inner class. This will update the listview (which is in the other tab).

Can ReviewTask be reached from InsertTask?

Answer 1

I don’t think you can do it. I just tried it out. Here’s what you can do though… have a method inside the fragment which the InsertTask’s postExecute() method calls on. In this fragment method, you can create a new ReviewTask and fire the task. This way your inner classes just talks to your parent class which acts as a delegate between calls.

EDIT:

public class MyFragment extends FragmentActivity {

        private void delegateMethod(Object result) {
            TaskB b = new TaskB();
            b.doanotherthing(result);
        }

        class TaskA {
            ...
            public void onPostExecute() {
                Object result = new Object();
                delegateMethod(result);
            }
        }

        class TaskB {
            public void doanotherthing(Object o) {
                ...
            }
        }
    }