Question

I have a ListView and an EditText. I implement addTextChangedListener on EditText to filter the ListView content.

leftList.setTextFilterEnabled(true);
et_search.addTextChangedListener(filterTextWatcher);

and then the TextWatcher is:

private TextWatcher filterTextWatcher = new TextWatcher() {

    public void afterTextChanged(Editable s) {
    }

    public void beforeTextChanged(CharSequence s, int start, int count,
            int after) {
    }

    public void onTextChanged(CharSequence s, int start, int before,
            int count) {

         if (watcherAdapter==null) {
             return;
         }

         watcherAdapter.getFilter().filter(s);

         Log.e(TAG, "OnTextChange: " + s + " start: " + start +
         " before: " + before + " count: " + count + " adapter: " +
         watcherAdapter.getCount());    

    }
};

Condition:

1. I have 10 items in ListView.

Question:

1. When I first type the first character, why the watcherAdapter.getCount() returns 10 (as initial) in ListView instead of the returned filter result count? The watcherAdapter.getCount() seems a-click late for the displayed result in ListView.
2. How I achieve to show "No Result" in ListView when there is no match results as I type on the EditText?

Answer 1

The only solution I use at last is to do my custom search filter….Split the words, tokenizes them, and if matched put it on array as adapter to the List. And it works as I want it