android:focusable=”true”

android:focusableInTouchMode=”true”

add these two line in parent of the Edittext …in example we added into cardview.

<androidx.cardview.widget.CardView
    android:id="@+id/note_search_layout"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    android:padding="5dp"
    app:cardBackgroundColor="@color/whiteBgcolor"
    app:cardCornerRadius="5dp"
    app:cardElevation="3dp"
    app:cardUseCompatPadding="true"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    android:focusable="true"
    android:focusableInTouchMode="true">

    <EditText
        android:id="@+id/note_search"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_margin="5dp"
        android:background="@drawable/bg_white_border_no"
        android:hint="Search Note by title.."

        android:imeOptions="actionSearch"
        android:inputType="text"
        android:padding="8dp"
        android:textSize="15sp" />

</androidx.cardview.widget.CardView>

Auto focus on edittext inside scrollview

autofocus inside scrollview