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微信小程式實作彈出式選單功能

不言
不言原創
2018-06-23 16:44:304005瀏覽

最近做項目需要這樣的需求，當使用者點擊標籤列按鈕，向下彈出選單，再點擊，收回選單。接下來透過本文為大家介紹微信小程式實作彈出式選單功能，有興趣的朋友一起看看吧

需求

# #點擊標籤列按鈕，向下彈出選單，再次點擊，收回選單

  1. #要解決的問題

  3. 標籤列三欄樣式，標籤列固定不動；

  4. #點擊標籤列彈出選單，並且出現透明遮罩；

  5. 遮罩優先權在彈出框下方；

彈出框內標籤的設定；


#捲動列滾動條的隱藏

如何解決？

彈性佈局，橫向，三者平分整欄;

狀態監聽點擊事件，數據控制hide或show,透過rgba設定透明度

彈出框設定z-index;

彈性佈局flex 橫向排列超出後wrap 然後space -around控制間距

::-webkit-scrollbar {
width: 0;
height: 0;
color: transparent;
}


具體實作


########## ##wxml#########
<import src="../../templates/template" />
<view class="container {{isMask?&#39;mask&#39;:&#39;&#39;}}">
  <view class="header">
    <view class="filterCity {{status==&#39;1&#39; && isActive?&#39;active&#39;:&#39;&#39;}}" data-status=&#39;1&#39; bindtap="changeStatus">
      <view class="city">城市筛选</view>
      <image src="{{status==&#39;1&#39; && isActive?&#39;../../youzan-image/red-up.png&#39;:&#39;../../youzan-image/down.png&#39;}}" />
    </view>
    <view class="filterJob {{status==&#39;2&#39; && isActive?&#39;active&#39;:&#39;&#39;}}" data-status=&#39;2&#39; bindtap="changeStatus">
      <view class="job">职位筛选</view>
      <image src="{{status==&#39;2&#39; && isActive?&#39;../../youzan-image/red-up.png&#39;:&#39;../../youzan-image/down.png&#39;}}" />
    </view>
    <view class="filterOrder {{status==&#39;3&#39;&& isActive?&#39;active&#39;:&#39;&#39;}}" data-status=&#39;3&#39; bindtap="changeStatus">
      <view class="order">排序方式</view>
      <image src="{{status==&#39;3&#39; && isActive?&#39;../../youzan-image/red-up.png&#39;:&#39;../../youzan-image/down.png&#39;}}" />
    </view>
  </view>
  <block wx:if="{{isActive==true&&status==&#39;1&#39;}}">
    <view class="cityContainer">
      <block wx:for="{{city}}" wx:key="id" wx:for-index="index">
        <view class="city {{isSelect&&index==curIndex?&#39;select&#39;:&#39;&#39;}}" data-index="{{index}}" bindtap="select">{{item}}</view>
      </block>
    </view>
  </block>
  <block wx:if="{{isActive==true&&status==&#39;2&#39;}}">
    <scroll-view scroll-y="true" class="posContainer">
      <block wx:for="{{cur}}" data-index=&#39;index&#39; wx:for-index=&#39;index&#39; wx:key="index">
        <view class="title">{{item.title}}</view>
        <view class="poscontent">
          <view wx:for="{{item.types}}" wx:for-item="type" wx:key=&#39;id&#39; wx:for-index="{{index}}" data-index="{{index}}">
            <view class="tag {{isSelect&&index==curIndex?&#39;select&#39;:&#39;&#39;}}" data-id="{{id}}" bindtap="multiSelect">{{type}}</view>
          </view>
        </view>
      </block>
      <view class="confirm">
        <button class="weui-btn" type="warn">确认</button>
      </view>
    </scroll-view>
  </block>
  <block wx:if="{{isActive==true&&status==&#39;3&#39;}}">
    <view class="orderContainer">
      <view class="block">智能排序</view>
      <view class="block">时间排序</view>
      <view class="block">薪资排序</view>
    </view>
  </block>
  <view class="listContainer" >
    <view wx:for="{{jobList}}" wx:key="index" data-index="{{index}}">
      <template is="list-item" data="{{...item}}" />
    </view>
  </view>
  <view class="search " bindtap="search">
    <image src="../../youzan-image/search.png" />
    <text>搜索</text>
  </view>
</view>
#########wxss##########
page {
  position: relative;
  width: 100%;
  height: 100vh;
}

.header {
  width: 100%;
  height: 80rpx;
  position: fixed;
  top: 0;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  text-align: center;
  color: #313131;
  font-size: 16px;
  border-bottom: 1rpx solid #eeeeee;
  z-index: 9999;
  background-color: #fff;
}

.filterCity {
  flex: 1;
  position: relative;
  height: 80rpx;
  line-height: 80rpx;
}

.filterJob {
  position: relative;
  flex: 1;
  height: 80rpx;
  line-height: 80rpx;
}

.filterOrder {
  position: relative;
  flex: 1;
  height: 80rpx;
  line-height: 80rpx;
}

.header image {
  position: absolute;
  right: 15rpx;
  top: 26rpx;
  width: 30rpx;
  height: 30rpx;
}

.active {
  color: #ef0001;
}

.mask {
  width: 100%;
  height: 100%;
  position: fixed;
  top: 80rpx;
  background-color: rgba(15, 15, 26, 0.3);
}

.cityContainer {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: space-between;
  flex-wrap: wrap;
  width: 100%;
  height: 300rpx;
  z-index: 999;
  background-color: #fff;
  border-bottom: 1rpx solid #e9e9e9;
  padding-bottom: 130rpx;
}

.cityContainer .city {
  display: block;
  font-size: 15px;
  margin-top: 100rpx;
  width: 150rpx;
  height: 50rpx;
  line-height: 50rpx;
  text-align: center;
  border: 1rpx solid #e9e9e9;
  overflow: hidden;
}
.select {
  color: #ffffff;
  background-color: #ed0000;
}
.posContainer {
  height: 980rpx;
  width: 100%;
  background-color: #fff;
  /* overflow:auto; */
}
::-webkit-scrollbar {
  width: 0;
  height: 0;
  color: transparent;
}
.title {
  margin-top: 55rpx;
  font-size: 15px;
  margin-left: 28rpx;
}
.poscontent {
  width: 100%;
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-top: -15rpx;
}
.tag {
  margin-left: 28rpx;
  margin-top: 23rpx;
  font-size: 13px;
  width: 150rpx;
  height: 50rpx;
  line-height: 50rpx;
  text-align: center;
  border: 1rpx solid #e9e9e9;
}
.confirm {
  width: 100%;
  height: 150rpx;
  border: 1rpx solid transparent;
  background-color: #fff;
}
.weui-btn {
  position: fixed;
  width: 95%;
  bottom: 52rpx;
  left: 50%;
  transform: translateX(-50%);
}
.orderContainer {
  display: flex;
  flex-direction: row;
  justify-content: space-around;
  align-items: center;
  background-color: #fff;
  width: 100%;
  height: 125rpx;
}
.block {
  font-size: 13px;
  width: 200rpx;
  height: 50rpx;
  line-height: 50rpx;
  text-align: center;
  border: 1rpx solid #e9e9e9;
}
.search {
  position: fixed;
  bottom: 80rpx;
  background-color: #fff;
  right: 25rpx;
  width: 150rpx;
  height: 75rpx;
  line-height: 75rpx;
  text-align: center;
  border-radius: 35rpx;
  box-shadow: 1rpx 1rpx 7rpx 7rpx #f5f5f5;
}
.search image {
  width: 30rpx;
  height: 30rpx;
}
.search text {
  font-size: 15px;
  padding-left: 9rpx;
  color: #666666;
}
.listContainer {
  width: 100%;
  height: 100%;
  margin-top: 80rpx;
}
########js################################################################### ##
import category from &#39;../../api/employ&#39;
import jobList from &#39;../../api/detail&#39;
Page({
 data: {
  curIndex: &#39;&#39;,
  isActive: false,
  jobList:[],
  cur: [],
  job: [],
  isShow: true,
  status: 0,
  isMask: false,
  isSelect: false,
  city: [&#39;全国&#39;, &#39;杭州&#39;, &#39;北京&#39;, &#39;深圳&#39;, &#39;上海&#39;, &#39;广州&#39;, &#39;武汉&#39;, &#39;重庆&#39;]
 },
 changeStatus(e) {
  let status = e.currentTarget.dataset.status;
  let cur = category;
  this.setData({
   isActive: !this.data.isActive,
   status: status,
   isMask: !this.data.isMask,
   cur: cur,
  })
 },
 select(e) {
  let curIndex = e.currentTarget.dataset.index;
  this.setData({
   isSelect: " curIndex == this.data.curIndex ? &#39;!this.data.isActive&#39; : &#39;true&#39; ",
   isActive: false,
   isMask:false,
   curIndex: curIndex,
  })
 },
 multiSelect(e){
  let multiIndex=e.currentTarget.dataset.index;
  this.setData({
   isSelect:!this.data.isSelect,
   curIndex:multiIndex
  })
 },
 search(e) {
  wx.navigateTo({
   url: &#39;../search/search&#39;,
  })
 },
 onLoad: function (e) {
  this.setData({
   jobList:jobList
  })
 },
 click:function (e) {
  let id =e.currentTarget.dataset.id;
  wx.navigateTo({
   url: `../detail/detail?id=${id}`,
  })
 }
})
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