在片段活动中使用列表适配器

Question

I have an activity class that extends from FragmentActivity as I am using DialogFragment in it.

Earlier this class was extended from ListActivity and there was no issues but when I extended it from FragmentActivity when the requirement of DialogFragment arrive the method setListAdapter becomes unavaible.

I want to know that how can I use the method setListAdapter while extending my class from FragmentActivity

public class Main extends FragmentActivity{
            …
            …
    private class fetchStudentInfo extends AsyncTask<String, Void, List<mStudentInfo>> {
        @Override
        protected List<mStudentInfo> doInBackground(String... urls) {
            …
        }

        public void onPostExecute(List<mStudentInfo> StudentInfoCollection) {
            setListAdapter(new StudentInfoAdapter((Activity) mainAppContext, StudentInfoCollection));
        }
    }
    }

Answer 1

For setting setAdapter you need a listView reference like this ,

public class Main extends FragmentActivity {

  private ListView mListView; 
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.your_layout_id);
    mListView = (ListView)findViewById(R.id.list);
 }

 private class fetchStudentInfo extends AsyncTask<String, Void, List<mStudentInfo>> {
        @Override
        protected List<mStudentInfo> doInBackground(String... urls) {
            …
        }

        public void onPostExecute(List<mStudentInfo> StudentInfoCollection) {
            mListView.setListAdapter(new StudentInfoAdapter((Activity) mainAppContext, StudentInfoCollection));
        }
    }

}

And also you need layout file with a listview inside with id R.id.list .