Extension functions to deal with enable/disable buttons with accessibility service ON.

ButtonExtFun.kt

/**
 * Extension function to disable a Button.
 * Workaround due we can't just set enable to false because it will lose focusable ability.
 * Check canTakeFocus() function inside View.java file.
 */
fun Button.disable(@DrawableRes drawableForAccessibility: Int) {
    if (TalkBackState.value == true) {
        isEnabled = true
        isClickable = false
        contentDescription = String.format(context.getString(R.string.button_disabled_accessibility), text)
        background = ContextCompat.getDrawable(context, drawableForAccessibility)
    } else {
        isEnabled = false
    }
}

/**
 * Extension function to enable a Button.
 * Workaround due we can't just set enable to false because it will lose focusable ability.
 * Check canTakeFocus() function inside View.java file.
 */
fun Button.enable(@DrawableRes drawableForAccessibility: Int) {
    if (TalkBackState.value == true) {
        isEnabled = true
        isClickable = true
        contentDescription = context.getString(R.string.button_accessibility_label, text)
        background = ContextCompat.getDrawable(context, drawableForAccessibility)
    } else {
        isEnabled = true
    }
}