setDropDown
fun AutoCompleteTextView.setDropDown(stringArray: Int, selectedIndex: Int? = null, disableEdit: Boolean = true, isAutoClear: Boolean = true, onItemSelected: (position: Int?) -> Unit? = null): CSRegistration
fun <T : AutoCompleteTextView> T.setDropDown(strings: List<String>, filter: (List<String>, CharSequence?) -> List<String>?, selectedIndex: Int? = null, isAutoClear: Boolean = true, onSelection: (position: Int?) -> Unit? = null): CSRegistration
fun <T : AutoCompleteTextView> T.setDropDown(strings: List<String>, selectedIndex: Int? = null, disableEdit: Boolean = true, isAutoClear: Boolean = true, onSelection: (position: Int?) -> Unit? = null): CSRegistration