ef="../../reference/android/view/accessibility/AccessibilityEvent.html">AccessibilityEvent</a></code> actually arrives!  Start by
overriding the <code><a href="../../reference/android/accessibilityservice/AccessibilityService.html#onAccessibilityEvent(android.view.accessibility.AccessibilityEvent)">onAccessibilityEvent(AccessibilityEvent)</a></code> method.
In that method, use <code><a href="../../reference/android/view/accessibility/AccessibilityEvent.html#getEventType()">getEventType()</a></code> to deter