Question

Trying to implement search functionality in list view having problem in search,here i am placing code where i am getting error

 friendsearch.addTextChangedListener(new TextWatcher() {
     public void onTextChanged(CharSequence cs, int arg1, int arg2, int arg3) {
                    // When user changed the Text
                    FriendsActivity.this.adapter.getFilter().filter(cs);
                    //*in the above line i am getting error.*
       }

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

        }

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

Answer 1

It seems that FriendsActivity.this.adapter has type ListAdapter. If it’s actually array adapter then try:

((ArrayAdapter<?>) FriendsActivity.this.adapter).getFilter().filter(cs)

EDIT:

You have following class: class ListAdapter extends BaseAdapter in your sources. BaseAdapter doesn’t implement filter. So you need to implement it manually. Check this tutorial: http://www.survivingwithandroid.com/2012/10/android-listview-custom-filter-and.html