page{height:100%}

<scroll-view style="height:100%" class="chooseView" scroll-y="true" lower-threshold="200" bindscroll='scrolling' bindscrolltolower="scrollHandler"></scroll-view>

  scrolling:function(e){},

  scrollHandler:tool.throttle(function (e) {

    console.log('scrollHandler--',e)

    var bottom=e.detail.direction

    console.log('bottom--',bottom)

 }),



页面还没滑到底部就触发了

滑动块的时候触发多次