android - How to restrict the AutoCompleteTextView dropdown dismiss on text change listener? -

i take autocomplete textview , it's change liseter event.

when enter text in it, pop fill data adapter, when again enter 1 more character, dismiss , reopen again. don't want dismiss it. remain open when enter character 1 one , change data in adapter.

xml :

<autocompletetextview             android:id="@+id/autotextsearch"             android:layout_width="120dp"             android:layout_height="wrap_content"             android:background="@drawable/search_bg"             android:completionthreshold="1"             android:dropdownheight="360dp"             android:dropdownhorizontaloffset="-140dp"             android:dropdownverticaloffset="0dp"             android:dropdownwidth="400dp"             android:ems="10"             android:gravity="center_vertical"             android:imeoptions="actiondone"             android:inputtype="text"             android:maxwidth="105dp"             android:paddingleft="7dp"             android:paddingright="5dp"             android:popupbackground="@drawable/popup_search"             android:singleline="true"             android:textcolor="@android:color/white"             android:textsize="14sp" >         </autocompletetextview> 

and adapter set :

dropdownlistadapter dropdownlistadapter = new dropdownlistadapter(context, r.layout.row_search, arrlistsearch);         textview.setadapter(dropdownlistadapter);         textview.showdropdown();