功能：　

1、需要多選復(fù)選框，并且可以上拉滾動；

2、需要通過名稱手寫字母排序的，并且可以上拉滾動；

常規(guī)的小程序自帶的原生picker無法滿足我們的要求，因此一些特殊效果需要我們自定義來實現(xiàn)，廢話不多說，我們直接看效果：

index.wxml布局

<view class="container"> <view class='class bgFFF' bindtap='isDep'>  <view class='class-text'>    <text class='red'> </text>    <text>開放部門</text>   </view>  <view class='class-choose'>   <text class='color333 perItem' wx:if="{{checkValue.length>0}}">    <block wx:for="{{checkValue}}" wx:key="index"> {{item}} </block>   </text>   <text wx:else>默認全部</text>   <image src='/images/right-icon.png' mode="widthFix"></image>  </view> </view> <view class='class bgFFF' bindtap='isPer'>  <view class='class-text'>    <text class='red'> </text>    <text>開放成員</text>   </view>  <view class='class-choose'>   <text class='color333 perItem' wx:if="{{depValue.length>0}}">    <block wx:for="{{depValue}}" wx:key="index"> {{item}} </block>   </text>   <text wx:else>默認全部</text>   <image src='/images/right-icon.png' mode="widthFix"></image>  </view> </view></view><!-- 部門列表 --><view class='typeListBox' wx:if="{{isDep}}"> <view class='wrap'>  <view class='nav'>   <text class='active'>部門</text>   <!-- <text class='{{navId==2?"active":""}}' data-id='2' bindtap='getNav'>人員</text> -->  </view>  <view class='checkbox-con'>   <scroll-view scroll-y style="height: 700rpx;" scroll-top="{{scrollTop}}">    <checkbox-group bindchange="checkboxChange" class="checkbox-group">     <view wx:for="{{checkboxArr}}" wx:key="item.name">      <label class="{{item.checked?'checkbox checked':'checkbox'}}" bindtap='checkbox' data-index="{{index}}">       <checkbox value="{{item.name}}" checked="{{item.checked}}"/>{{item.name}}      </label>     </view>    </checkbox-group>   </scroll-view>  </view>  <view class='btn1'>   <button class='bgFFF' bindtap='cancel'>取消</button>   <button class='' bindtap='confirm'>確定</button>  </view> </view></view><!-- 成員列表 --><view class='typeListBox' wx:if="{{isPer}}"> <view class='wrap'>   <!-- 字母錨點 -->   <view class='anchor'>    <view bindtap="jumpTo" wx:for="{{words}}" wx:key="i" data-opt="{{item}}">{{item}}</view>   </view>  <view class='nav'>   <text class='active'>人員</text>  </view>  <view class='checkbox-con'>   <scroll-view scroll-y style="height: 700rpx;" scroll-with-animation='true' scroll-top="{{scrollTop}}" scroll-into-view="{{toView}}">    <view class='typeList'>     <checkbox-group class="radio-group" bindchange="checkBoxPer">      <view wx:for="{{personnelArr}}" wx:key="index" wx:for-item="itemName" wx:for-index="itemNameInd">       <view class='typeList-item-title' id="{{itemName.name}}">{{itemName.name}}</view>       <label class='typeList-item' data-itemnameind='{{itemNameInd}}' bindtap="checkPer" wx:for="{{itemName.a}}" wx:key="a" wx:for-item="item" data-index="{{index}}">        <checkbox value="{{item.name}}" checked="{{item.checked}}" color='#3eace2'/>        <text>{{item.name}}</text>       </label>      </view>     </checkbox-group>    </view>   </scroll-view>  </view>  <view class='btn1'>   <button class='bgFFF' bindtap='cancel'>取消</button>   <button class='' bindtap='confirmPer'>確定</button>  </view> </view></view>