How to know if Android TalkBack is active?

Question

I\'m developing an application that uses TalkBack to guide people through it. However, in those situations I want to have some subtile differences in the layout of the appli

Answer 1

    AccessibilityManager am = (AccessibilityManager) context.getSystemService(Context.ACCESSIBILITY_SERVICE);
    if (am != null && am.isEnabled()) {
        List serviceInfoList = am.getEnabledAccessibilityServiceList(AccessibilityServiceInfo.FEEDBACK_SPOKEN);
        if (!serviceInfoList.isEmpty())
            return true;
    }
    return false;