Solved this myself. Here is the code below...
ArrayList<String> businessNames = new ArrayList<String>();
List<Spanned> businessInfo = new ArrayList<Spanned>();
ArrayList<String> businessCategories = new ArrayList<String>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
expListView = (ExpandableListView) findViewById(R.id.lvExp);
String userChoice = (String) getIntent().getExtras().get("userChoice");
if (savedInstanceState != null){
businessInfo = (List<Spanned>) savedInstanceState.getSerializable("businessInfo");
businessNames = savedInstanceState.getStringArrayList("businessNames");
businessCategories = savedInstanceState.getStringArrayList("businessCategories");
new DisplaySavedResults().execute();
} else {
new RetreiveSearchResults().execute(userChoice);
}
}
protected void onSaveInstanceState(Bundle savedInstanceState) {
super.onSaveInstanceState(savedInstanceState);
savedInstanceState.putStringArrayList("businessNames", businessNames);
savedInstanceState.putStringArrayList("businessCategories", businessCategories);
savedInstanceState.putSerializable("businessInfo", (Serializable) businessInfo);
}
The new asynctask DisplaySavedResults
simply just does the UI changing in the onPostExecute
. The doInBackground
is left empty.