[Exposed Dropdown Menu] Scroll always to top instead of selected item

[EliuTimana]

Description: I've implemented an exposed dropdown menu following the material docs material.io and this everything is working fine, but every time I want to select another item that is at the end of the list I have to scroll down, again and again, that's not the normal behavior of the Spinner widget, ¿is that possible?

Expected behavior: Vertical scroll should be set to the selected item, this can improve accessibility when the list contains a lot of elements.

Source code:

...
<LinearLayout
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:layout_marginStart="16dp"
   android:layout_marginTop="8dp"
   android:layout_marginEnd="16dp"
   android:orientation="vertical"
   tools:context=".ui.filter.FilterFragment">
   <com.google.android.material.textfield.TextInputLayout
      android:id="@+id/dropdown_department"
      style="@style/Widget.MaterialComponents.TextInputLayout.FilledBox.ExposedDropdownMenu"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:hint="@string/department"
      app:data="@{viewModel.departments}">
      <AutoCompleteTextView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:inputType="none"
         android:overScrollMode="always" />
   </com.google.android.material.textfield.TextInputLayout>
   <Spinner
      android:id="@+id/spinner_province"
      android:layout_width="match_parent"
      android:layout_height="wrap_content"
      android:layout_marginTop="8dp"
      app:data="@{viewModel.departments}"
      app:layout_constraintEnd_toEndOf="parent"
      app:layout_constraintStart_toStartOf="parent"
      app:layout_constraintTop_toBottomOf="@+id/textViewProvince" />
</LinearLayout>
...

val adapterProv = SpinnerUbigeoAdapter(requireContext(), OnItemSelected {
    viewModel.onSelectProvincia(it)
})
(binding.dropdownProvince.editText as? AutoCompleteTextView)?.setAdapter(adapterProv)
binding.spinnerProvince.adapter = adapterDep

Android API version: 29

Material Library version: 1.2.0

Device: Emulator or real device

[cappee]

@EliuTimana how did you solve?

[EliuTimana]

@EliuTimana how did you solve?

I was no able to solve this, I am using the classic spinner instead.

[brunopiovan]

I solved this by adding setOnClickListener on the AutoCompleteTextView and then setting listSelection to the index of the item.
ex:

autoCompleteTextView.setOnClickListener {
    autoCompleteTextView.listSelection = <index>
}