Apps Accessibility event

[mini139]

HI,

I have my code for screenreader and epubreader. When i try to access the screenreaderservice in
webview's ontouchevent my service is returning
onAccessibilityEvent: [type] TYPE_TOUCH_INTERACTION_START [class] null [package] null [time] 7027156
[text] []
[description] null
onAccessibilityEvent: [type] TYPE_TOUCH_EXPLORATION_GESTURE_START [class] null [package] null [time] 7027156
[text] []
[description] null

Why the webview is not view in the TYPE_VIEW_HOVER_ENTER? How to make webview come in TYPE_VIEW_HOVER_ENTER?