如何在文本开始删除时启用我的搜索方法

我使用我的“搜索”方法,根据EditText输入更改过滤recyclerView中的数据,它工作正常,但当文本被删除(部分)时,没有任何内容被过滤。

我的搜索方法:

//a method to filter the question list search
private void searching(){
    search.addTextChangedListener(new TextWatcher() {
        @Override
        public void beforeTextChanged(CharSequence charSequence, int i, int il, int i2) {
        }
        @Override
        public void onTextChanged(CharSequence charSequence, int i, int i1, int i2) {

            for (int iterator = 0; iterator < filterForSearch.size(); iterator++) {
                //if what i searched have a part of question title - do not filter else filter
                if (!filterForSearch.get(iterator).get("title").toString().contains(search.getText().toString())  ){
                    filterForSearch.remove(iterator);
                }
            }
            //set the adapter with the data that the user searched
            setQuestionsAdapter(filterForSearch);
            filterForSearch = cloudData;
        }
        @Override
        public void afterTextChanged(Editable editable) {
            // when the user delete his search - show him the questions again
            if(search.getText().toString().equals("")){
                pullData();
            }
    }
    });
}