Searching ListView that uses ListAdapater, not ArrayAdapter

Question

I have a list view that uses a List Adapter as the adapter to populate the list view. I researched online for a way to add a search for this, but all of them are using ArrayAdapters. Since I'm using a List Adapter, the function getFilter() doesn't work. This is my code

inputSearch.addTextChangedListener(new TextWatcher() {

                    @Override
                    public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                        // When user changed the Text
                        adapter.getFilter().filter(cs);   

                    }

                    @Override
                    public void beforeTextChanged(CharSequence arg0, int arg1, int arg2,
                            int arg3) {
                        // TODO Auto-generated method stub

                    }

                    @Override
                    public void afterTextChanged(Editable arg0) {
                        // TODO Auto-generated method stub                          
                    }

Can someone help me find an alternative way so doing this in a simple way?

Answer 1

Create a function in your Adapter like this:

public void filter(String charText) { charText = charText.toLowerCase(Locale.getDefault()); objectList.clear(); if (charText.length() == 0) { objectList.addAll(objectAsArraylist); } else { for (Object v : objectAsArraylist) { objectList.add(v); } } notifyDataSetChanged(); }

where objectList is the list you passed to the adapter, and objectAsArraylist is the objectList passed to an arraylist.

Then you can call this method on your onTextChanged :

adapter.filter(text)