```
<template>
<view>
<cu-custom bgImage="https://image.weilanwl.com/color2.0/plugin/sylb2244.jpg" :isBack="true"><block slot="backText">返回</block>
<block slot="content">索引</block>
</cu-custom>
<view class="cu-bar bg-white search fixed" :style="[{top:CustomBar + 'px'}]">
<view class="search-form round">
<text class="cuIcon-search"></text>
<input type="text" placeholder="輸入搜索的關鍵詞" confirm-type="search"></input>
</view>
<view class="action">
<button class="cu-btn bg-gradual-green shadow-blur round">搜索</button>
</view>
</view>
<scroll-view scroll-y class="indexes" :scroll-into-view="'indexes-'+ listCurID" :style="[{height:'calc(100vh - '+ CustomBar + 'px - 50px)'}]"
:scroll-with-animation="true" :enable-back-to-top="true">
<block v-for="(item,index) in list" :key="index">
<view :class="'indexItem-' + item.name" :id="'indexes-' + item.name" :data-index="item.name">
<view class="padding">{{item.name}}</view>
<view class="cu-list menu-avatar no-padding">
<view class="cu-item" v-for="(items,sub) in 2" :key="sub">
<view class="cu-avatar round lg">{{item.name}}</view>
<view class="content">
<view class="text-grey">{{item.name}}<text class="text-abc">{{list[sub].name}}</text>君</view>
<view class="text-gray text-sm">
有{{sub+2}}個主子需要伺候
</view>
</view>
</view>
</view>
</view>
</block>
</scroll-view>
<view class="indexBar" :style="[{height:'calc(100vh - ' + CustomBar + 'px - 50px)'}]">
<view class="indexBar-box" @touchstart="tStart" @touchend="tEnd" @touchmove.stop="tMove">
<view class="indexBar-item" v-for="(item,index) in list" :key="index" :id="index" @touchstart="getCur" @touchend="setCur"> {{item.name}}</view>
</view>
</view>
<!--選擇顯示-->
<view v-show="!hidden" class="indexToast">
{{listCur}}
</view>
</view>
</template>
<script>
export default {
data() {
return {
StatusBar: this.StatusBar,
CustomBar: this.CustomBar,
hidden: true,
listCurID: '',
list: [],
listCur: '',
};
},
onLoad() {
let list = [{}];
for (let i = 0; i < 26; i++) {
list[i] = {};
list[i].name = String.fromCharCode(65 + i);
}
this.list = list;
this.listCur = list[0];
},
onReady() {
let that = this;
uni.createSelectorQuery().select('.indexBar-box').boundingClientRect(function(res) {
that.boxTop = res.top
}).exec();
uni.createSelectorQuery().select('.indexes').boundingClientRect(function(res) {
that.barTop = res.top
}).exec()
},
methods: {
//獲取文字信息
getCur(e) {
this.hidden = false;
this.listCur = this.list[e.target.id].name;
},
setCur(e) {
this.hidden = true;
this.listCur = this.listCur
},
//滑動選擇Item
tMove(e) {
let y = e.touches[0].clientY,
offsettop = this.boxTop,
that = this;
//判斷選擇區域,只有在選擇區才會生效
if (y > offsettop) {
let num = parseInt((y - offsettop) / 20);
this.listCur = that.list[num].name
};
},
//觸發全部開始選擇
tStart() {
this.hidden = false
},
//觸發結束選擇
tEnd() {
this.hidden = true;
this.listCurID = this.listCur
},
indexSelect(e) {
let that = this;
let barHeight = this.barHeight;
let list = this.list;
let scrollY = Math.ceil(list.length * e.detail.y / barHeight);
for (let i = 0; i < list.length; i++) {
if (scrollY < i + 1) {
that.listCur = list[i].name;
that.movableY = i * 20
return false
}
}
}
}
}
</script>
<style>
page {
padding-top: 100upx;
}
.indexes {
position: relative;
}
.indexBar {
position: fixed;
right: 0px;
bottom: 0px;
padding: 20upx 20upx 20upx 60upx;
display: flex;
align-items: center;
}
.indexBar .indexBar-box {
width: 40upx;
height: auto;
background: #fff;
display: flex;
flex-direction: column;
box-shadow: 0 0 20upx rgba(0, 0, 0, 0.1);
border-radius: 10upx;
}
.indexBar-item {
flex: 1;
width: 40upx;
height: 40upx;
display: flex;
align-items: center;
justify-content: center;
font-size: 24upx;
color: #888;
}
movable-view.indexBar-item {
width: 40upx;
height: 40upx;
z-index: 9;
position: relative;
}
movable-view.indexBar-item::before {
content: "";
display: block;
position: absolute;
left: 0;
top: 10upx;
height: 20upx;
width: 4upx;
background-color: #f37b1d;
}
.indexToast {
position: fixed;
top: 0;
right: 80upx;
bottom: 0;
background: rgba(0, 0, 0, 0.5);
width: 100upx;
height: 100upx;
border-radius: 10upx;
margin: auto;
color: #fff;
line-height: 100upx;
text-align: center;
font-size: 48upx;
}
</style>
```
