一.實(shí)現(xiàn)思路
二.實(shí)現(xiàn)
1.實(shí)現(xiàn)左右兩個better-scroll
(1)dom結(jié)構(gòu)(better-scroll要求,會把最外層dom的第一個子元素作為要滾動的區(qū)域)
左邊滾動列表dom <div class="menu-wrapper" v-el:menu-wrapper> <ul> <li v-for="item in goods" class="menu-item" :class="{'current':currentIndex === $index}" @click="selectMenu($index,$event)"> <span class="text border-1px"> <span v-show="item.type > 0" class="icon" :class="classMap[item.type]"></span>{{item.name}} </span> </li> </ul> </div>右邊滾動列表dom<div class="food-wrapper" v-el:food-wrapper> <ul> <li v-for="item in goods" class="food-list food-list-hook"> <h1 class="title">{{item.name}}</h1> <ul> <li v-for="food in item.foods" class="food-item border-1px"> <div class="icon"> <img width="57" height="57" :src="food.icon"> </div> <div class="content"> <h2 class="name">{{food.name}}</h2> <p class="desc">{{food.description}}</p> <div class="extra"> <span class="count">月售{{food.sellCount}}份</span> <span>好評率{{food.rating}}%</span> <div class="price"> <span class="now">¥{{food.price}}</span> <span class="old" v-show="food.oldPrice">¥{{food.oldPrice}}</span> </div> </div> </div> </li> </ul> </li> </ul> </div>在數(shù)據(jù)請求完成后的$nextTick中初始化better-scroll,就能實(shí)現(xiàn)兩個列表分別能滾動,至于聯(lián)動,要后面自己做
_initScroll() { this.menuScroll = new BScroll(this.$els.menuWrapper,{ click:true //允許better-scroll列表上的點(diǎn)擊事件 }); this.foodsScroll = new BScroll(this.$els.foodWrapper,{ probeType : 3 //讓better-scroll監(jiān)聽scroll事件 }); this.foodsScroll.on('scroll',(pos) => { this.scrollY =Math.abs(Math.round(pos.y)); }) },2.實(shí)現(xiàn)聯(lián)動效果
(1)具體的聯(lián)動實(shí)現(xiàn)思路
//初始化better-scroll_initScroll() { this.menuScroll = new BScroll(this.$els.menuWrapper,{ click:true }); this.foodsScroll = new BScroll(this.$els.foodWrapper,{ probeType : 3 }); this.foodsScroll.on('scroll',(pos) => { this.scrollY =Math.abs(Math.round(pos.y)); }) },_calculateHeight() { let foodList = this.$els.foodWrapper.getElementsByClassName("food-list-hook"); let height = 0; this.listHeight.push(height); for(let i=0;i<foodList.length;i++) { let item = foodList[i]; height += item.clientHeight; this.listHeight.push(height); } }computed: { currentIndex() { for(let i=0;i< this.listHeight.length;i++) { let height1 = this.listHeight[i]; let height2 = this.listHeight[i+1]; if(!height2 || (this.scrollY >= height1 && this.scrollY < height2)){ return i; } } return 0; } },<div class="menu-wrapper" v-el:menu-wrapper> <ul> <!-- :class="{'current':currentIndex === $index}" 就是根據(jù)currentIndex應(yīng)用左側(cè)列表被點(diǎn)中的樣式 --> <li v-for="item in goods" class="menu-item" :class="{'current':currentIndex === $index}" @click="selectMenu($index,$event)"> <span class="text border-1px"> <span v-show="item.type > 0" class="icon" :class="classMap[item.type]"></span>{{item.name}} </span> </li> </ul> </div>//被點(diǎn)擊事件//dom<div class="menu-wrapper" v-el:menu-wrapper> <ul> <!-- @click="selectMenu($index,$event)" 就是點(diǎn)擊事件 --> <li v-for="item in goods" class="menu-item" :class="{'current':currentIndex === $index}" @click="selectMenu($index,$event)"> <span class="text border-1px"> <span v-show="item.type > 0" class="icon" :class="classMap[item.type]"></span>{{item.name}} </span> </li> </ul> </div>//js selectMenu(index,event) { if(!event._constructed) { return ; } let foodList = this.$els.foodWrapper.getElementsByClassName("food-list-hook"); let el = foodList[index]; this.foodsScroll.scrollToElement(el,300); },以上所述是小編給大家介紹的vue和better-scroll實(shí)現(xiàn)列表左右聯(lián)動效果詳解整合，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復(fù)大家的。在此也非常感謝大家對武林網(wǎng)網(wǎng)站的支持！
新聞熱點(diǎn)
疑難解答
