按键与触控

支持 onKeyDown , onKeyUp , onKeyLongPress , onTouchEvent
函数必须返布尔值

function onKeyDown(code,event)
    print(code,event)
end

function onKeyUp(code,event)
    print(code,event)
end

function onKeyLongPress(code,event)
    print(code,event)
end

function onTouchEvent(event)
    print(event)
end