Android TextView layout in the last row in the solution to be obscured ScrollView

Very simple, do not use TextView directly within ScrollView, but add a layer of LinearLayout in the middle, can be the perfect solution.

   <ScrollView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="15dp"
        android:layout_weight="1"
        android:background="@drawable/password_input_text_bg"
        app:layout_constraintBottom_toTopOf="@id/bottom"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_weight="1">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical">

            <TextView
                android:id="@+id/console"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginVertical="15dp"
                app:layout_constraintBottom_toTopOf="@id/bottom" />
        </LinearLayout>

    </ScrollView>