微信小程序可滚动视图区域

scroll-view

可滚动视图区域。

使用竖向滚动时，需要给<scroll-view/>一个固定高度，通过 WXSS 设置 height。

示例代码：

<view class="section">
  <view class="section__title">vertical scroll</view>
  <scroll-view scroll-y="true" style="height: 200px;" bindscrolltoupper="upper" bindscrolltolower="lower" bindscroll="scroll" scroll-into-view="{{toView}}" scroll-top="{{scrollTop}}">
    <view id="green" class="scroll-view-item bc_green"></view>
    <view id="red"  class="scroll-view-item bc_red"></view>
    <view id="yellow" class="scroll-view-item bc_yellow"></view>
    <view id="blue" class="scroll-view-item bc_blue"></view>
  </scroll-view>

  <view class="btn-area">
    <button size="mini" bindtap="tap">click me to scroll into view </button>
    <button size="mini" bindtap="tapMove">click me to scroll</button>
  </view></view><view class="section section_gap">
  <view class="section__title">horizontal scroll</view>
  <scroll-view class="scroll-view_H" scroll-x="true" style="width: 100%">
    <view id="green" class="scroll-view-item_H bc_green"></view>
    <view id="red"  class="scroll-view-item_H bc_red"></view>
    <view id="yellow" class="scroll-view-item_H bc_yellow"></view>
    <view id="blue" class="scroll-view-item_H bc_blue"></view>
  </scroll-view></view>

var order = ['red', 'yellow', 'blue', 'green', 'red']
Page({
  data: {
    toView: 'red',
    scrollTop: 100
  },
  upper: function(e) {    console.log(e)
  },
  lower: function(e) {    console.log(e)
  },
  scroll: function(e) {    console.log(e)
  },
  tap: function(e) {    for (var i = 0; i < order.length; ++i) {      if (order[i] === this.data.toView) {        this.setData({
          toView: order[i + 1]
        })        break
      }
    }
  },
  tapMove: function(e) {    this.setData({
      scrollTop: this.data.scrollTop + 10
    })
  }
})