Custom Button: How to apply TextView color selector programmatically

Question

I have custom button View made from LinearLayout which contains TextView. This custom Button has style defined in styles.xml. I made selector for background which is working fine and also I made android:textColor attribute where is text color selector, which I wanna set for that TextView inside that custom Button.

This is function inside custom button:

private fun setupTextColorStyle(buttonStyle: Int){
        val attrs = intArrayOf(android.R.attr.textColor)
        val typedAttrs = context.obtainStyledAttributes(buttonStyle, attrs)
        val textColor = typedAttrs.getColorStateList(0)
        buttonText.setTextColor(textColor)
        typedAttrs.recycle()
}

Default color from selector is set successfully, but if I press or disable that button, only background color is changing according to selector. Text inside Button stays same.

Button View:

<merge
        android:layout_width="wrap_content"
        android:layout_height="@dimen/button_height">

        <LinearLayout
            android:id="@+id/buttonParent"
            android:orientation="horizontal"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="center"
            android:gravity="center">

            <ImageView
                android:id="@+id/buttonIcon"
                android:layout_width="wrap_content"
                android:layout_height="match_parent"
                android:adjustViewBounds="true"
                android:layout_gravity="center"
                android:scaleType="fitCenter"/>

            <TextView
                android:id="@+id/buttonText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:duplicateParentState="true"
                android:clickable="true"
                android:textSize="@dimen/text_medium"
                android:textStyle="bold"
                android:layout_gravity="center"/>

        </LinearLayout>

        <ProgressBar
            android:id="@+id/progressBar"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:indeterminate="true"
            android:layout_gravity="center"
            android:gravity="center"/>

    </merge>

Style.xml

<style name="custombutton.secondary">
    <item name="android:background">@drawable/buttons_button_secondary</item>
    <item name="android:textColor">@color/texts_button_secondary</item>
</style>