Change accessibility traversal order in AutoCompleteTextView

Question

I have a layout with two AutoCompleteTextViews, when I type in upper AutoCompleteTextView, a popup window of suggestions is shown and it will hide the lower AutoCompleteTextViews. This has no problem until I enable Talkback. When talkback is enabled, accessibility will traverse the lower (hidden) AutoCompleteTextView before traversing the suggestions. Does anyone know how I can change the traversal order here so that talkback will announce the suggestions before announcing the hidden AutoCompleteTextView?

    <TextView
    android:id="@+id/textView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="Autocomplete Demo"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintHorizontal_bias="0.498"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:layout_constraintVertical_bias="0.158" />

<AutoCompleteTextView
    android:id="@+id/autoCompleteTextView1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView2"
    android:layout_alignLeft="@+id/textView2"
    android:importantForAccessibility="yes"
    android:ems="10"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.497"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/textView"
    app:layout_constraintVertical_bias="0.126"
    tools:ignore="MissingConstraints,UnknownId" />

<AutoCompleteTextView
    android:id="@+id/autoCompleteTextView2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_below="@+id/textView2"
    android:layout_alignLeft="@+id/textView2"
    android:importantForAccessibility="yes"
    android:accessibilityTraversalAfter="@android:id/text1"
    android:ems="10"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintHorizontal_bias="0.497"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toBottomOf="@+id/autoCompleteTextView1"
    app:layout_constraintVertical_bias="0.027"
    tools:ignore="MissingConstraints,UnknownId" />

Seems like this question does not have answer at the moment. The suggestions are shown in a popupWindow and Accessbility does not support rearranging traversal order between different windows. — Danny Fang
– Danny Fang, Commented Sep 1, 2020 at 6:20

essen_star · Accepted Answer · 2021-11-01 21:35:27Z

2

This is still not fixed for AutoCompleteTextView (regular and AppCompat), but it works properly if you use com.google.android.material.textfield.MaterialAutoCompleteTextView instead.

Focus will lock in to the PopupWindow and cycle through the array of dropdown items.

answered Nov 1, 2021 at 21:35

essen_star

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