[android-developers] problem to sorting listView onTextChange of custom edit text ...........

hi , i have problem with list view searching OnTextChange of custom edit text (like contact book of phone) , when i enter some text to custom edit text sometime list changed and some time throws below error , if u know solution for it pls reply me 07-24 11:47:57.960:

Re: [android-developers] problem to sorting listView onTextChange of custom edit text ...........

java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread. [in ListView(2131099656, class android.widget.ListView) with