• 【vue】imitate-beautiful-thing


    我从未见过这么美妙的项目,当然与我接触的项目少有关,但是这个项目满满的艺术气息,让人沉醉,让人忍不住的去研究代码。
    先放项目地址:https://github.com/eidonlon/imitate-beautiful-thing
    再来看一下项目的效果

    接下来我们来研究代码吧~
    我们先来看项目的入口文件main.js
    main.js作为入口引入App.vue

    <template>
      <div id="app">
       		<router-view></router-view>
      </div>
    </template>
    
    <script>
    export default {
      name: 'App'
    };
    </script>
    

    我们来分析main.js里面的内容,逐条分析
    关于引入的路由

    import Vue from 'vue'
    import Router from 'vue-router'
    // 这种也好玩,引入组件,再在router中注册
    import pageView from '@/pages/pageView'
    import Home from '@/pages/home'
    import Things from '@/pages/things'
    import Designer from '@/pages/designer'
    import Personal from '@/pages/personal'
    import Pictoral from '@/pages/pictoral'
    import Details from '@/pages/details'
    import Comment from '@/pages/comment'
    import About from '@/pages/about'
    
    Router.prototype.goBack = function(){
    	this.isBack = true;
    	window.history.go(-1);
    };
    
    Vue.use(Router);
    
    const routers = new Router({
      routes: [
        {
          path:'',
          name:'',
          component:pageView,
          children:[
            {
              path:'/',
              name:'',
              component:Home,
              children:[
               {
                path:'',
                    name:'pictoral',
                    meta:{index:1},
                    component:Pictoral
                  },
                  {
                    path:'/things',
                    name:'things',
                    meta:{index:1},
                    component:Things
                  },
                  {
                    path:'/designer',
                    name:'designer',
                    meta:{index:1},
                    component:Designer
                  },
                  {
                    path:'/personal',
                    name:'personal',
                    meta:{index:1},
                    component:Personal
                  },
              ]
            },
            {
              path:'/details/:id',
              name:'details',
              meta:{index:2},
              component:Details
            },
            {
              path:'/comment/:id',
              name:'comment',
              meta:{index:2},
              component:Comment
            },
            {
              path:'/about',
              name:'about',
              meta:{index:2},
              component:About
            }
          ]
        }
      ]
    })
    
    routers.beforeEach(function (to, from, next) { 
        document.body.scrollTop = document.documentElement.scrollTop = 0
        // 进入下一个页面的时候,都是页面的top为0那种
        next()
    });
    
    export default routers;
    

    我们会发现引入了vue-scroller,这个其实是实现下拉刷新,上拉获取数据的功能的。
    store中的内容不多,只是对tabIndex做了一个简单的下标赋值

    //index.js
    import Vue from 'vue'
    import Vuex from 'vuex'
    
    Vue.use(Vuex)
    
    const store = new Vuex.Store({
    	state:{
    		tabIndex:0
    	},
    	mutations:{
    		changeTab: function(state,index){
    			state.tabIndex = index;
    		}
    	}
    });
    
    export default store
    

    在mian.js页面还引入了tabBar,swiper,toast组件
    先看tabBar组件

    <template>
    	<div class="tab-bar">
    		<ul>
    			<li v-for="(item,index) in itemList" 
    				:key="index" class="tab-bar-item" 
    				:class="{active: index == isActive}" 
    				@click="addActive(index,item)">
    				
    				<span class="tab-bar-item_icon" :class="item.icon"></span>
    				<span class="tab-bar-item_Text">{{item.text}}</span>
    			</li>
    		</ul>
    	</div>
    </template>
    <script>
    	export default{
    		name:'tabbar',
    		data (){
    			return {
    				isActive:this.$store.state.tabIndex,
    				itemList:[
    					{text:"推荐",icon:"fa fa-clipboard",link:'/'},
    					{text:"作品",icon:"fa fa-smile-o",link:'/things'},
    					{text:"设计师",icon:"fa fa-pencil",link:'/designer'},
    					{text:"我",icon:"fa fa-user-o",link:'/personal'}
    				]
    			}
    		},
    		mounted(){
    			if(this.isActive != 0){
    				this.$router.push(this.itemList[this.isActive].link);
    			}
    		},
    		methods:{
    			addActive: function(index,item){
    				console.log('.....index',index)
    				console.log('...item',item.link)
    				this.isActive = index;
    				this.$router.push(item.link);
    				this.$store.commit("changeTab",index);
    			}
    		}
    	};
    </script>
    
    //swiper.vue
    <template>
    	<div class="swiper-box">
    		<swiper :options="swiperOption" ref="swiper" >
    			<swiper-slide v-for="(data, index) in dataList" 
    		  	  			  :key="index"
    		  	  			  :class="{active: activeIndex == index}">
    				<slot name="swiperMain" :data="data">{{data.text}}</slot> 	
    			</swiper-slide>
    			<div class="swiper-pagination" slot="pagination"></div>
    		</swiper>
    	</div>
    </template>
    <script>
    	import 'swiper/dist/css/swiper.css'
    	import { swiper, swiperSlide} from 'vue-awesome-swiper'
    	export default{
    		name: 'appnav',
    		props:{
    			activeIndex:{},
    			swiperOption:{
    				type:Object
    			},
    			dataList:{}
    		},
    		components:{
    			swiper,
    			swiperSlide
    		}
    	};
    </script>
    
    //toast.vue
    <template>
      <transition name="toast-fade">
        <div class="toast" v-show="visible" >
            <div class="toast-content">{{message}}</div>
        </div>
      </transition>
    </template>
    <script>
    export default {
      name:'toast',
      data(){
        return {
          visible:false,
          message:''
        }
      }
    }
    </script>
    
    //main.js
    import Vue from 'vue'
    import App from './App'
    import router from './router'
    import axios from 'axios'
    import store from './store'
    import scroller from 'vue-scroller'
    import 'font-awesome/scss/font-awesome.scss'
    import './assets/style/reset.css'
    import './assets/style/style.scss'
    import tabbar from './components/tabBar'
    import swiper from './components/swiper'
    import toast from './components/toast'
    
    Vue.config.productionTip = false
    Vue.config.devtools = true
    
    Vue.prototype.$axios = axios;
    
    Vue.use(scroller)
    Vue.use(tabbar)
    Vue.use(swiper)
    Vue.use(toast)
    
    new Vue({
      router,
      store,
      components: { App },
      render: h => h(App),
    }).$mount("#app");
    

    接下来我们结合router来看页面

    //srcpagespageView.vue
    <template>
    	<div class="page-view">
    		<transition :name="transitionName">
    			<router-view class="child-view"></router-view>
    		</transition>
    	</div>
    </template>
    <script>
    	export default {
    		name:"pageView",
    		data() {
    			return {
    				transitionName:'slide-left'
    			}
    		},
    		watch:{
    			$route: function(to,from){
    				console.log('what is to',to)
    				console.log('what is from',from)
    				let isBack = this.$router.isBack;
    				if(isBack){
    					this.transitionName = 'slide-right';
    				}else{
    					this.transitionName = 'slide-left';
    				}
    				this.$router.isBack = false;
    			},
    		}
    	}/*  */
    </script>
    
    //srcpagespageView.vue
    <template>
    	<div class="tab-bar">
    		<ul>
    			<li v-for="(item,index) in itemList" 
    				:key="index" class="tab-bar-item" 
    				:class="{active: index == isActive}" 
    				@click="addActive(index,item)">
    				
    				<span class="tab-bar-item_icon" :class="item.icon"></span>
    				<span class="tab-bar-item_Text">{{item.text}}</span>
    			</li>
    		</ul>
    	</div>
    </template>
    <script>
    	export default{
    		name:'tabbar',
    		data (){
    			return {
    				isActive:this.$store.state.tabIndex,
    				itemList:[
    					{text:"推荐",icon:"fa fa-clipboard",link:'/'},
    					{text:"作品",icon:"fa fa-smile-o",link:'/things'},
    					{text:"设计师",icon:"fa fa-pencil",link:'/designer'},
    					{text:"我",icon:"fa fa-user-o",link:'/personal'}
    				]
    			}
    		},
    		mounted(){
    			if(this.isActive != 0){
    				this.$router.push(this.itemList[this.isActive].link);
    			}
    		},
    		methods:{
    			addActive: function(index,item){
    				console.log('.....index',index)
    				console.log('...item',item.link)
    				this.isActive = index;
    				this.$router.push(item.link);
    				this.$store.commit("changeTab",index);
    			}
    		}
    	};
    </script>
    

    效果为

    代码为:

    <template>
    	<div class="personal">
    		<div class="personal-logo">
    			<div class="logo">
    				<span class="logo_img"><img src="/static/images/logo.jpg" alt=""></span>
    				<span>登录</span>
    			</div>
    		</div>
    		<div class="personal-main">
    			<div class="personal-main_menu">
    				<ul>
    					<li><i class="fa fa-thumbs-o-up"></i><span>我推荐的</span></li>
    					<li><i class="fa fa-heart-o"></i><span>我关注的</span></li>
    					<li><i class="fa fa-folder-open-o"></i><span>我的作品</span></li>
    				</ul>
    			</div>
    			<div class="personal-main_list">
    				<ul>
    					<li><i class="fa fa-bell-o"></i><span>消息中心</span><i class="fa fa-angle-right"></i></li>
    					<li><i class="fa fa-bullhorn"></i><span>联系我</span><i class="fa fa-angle-right"></i></li>
    					<li @click="toAbout"><i class="fa fa-meh-o"></i><span>关于</span><i class="fa fa-angle-right"></i></li>
    				</ul>
    			</div>
    		</div>
    	</div>
    </template>
    <script>
    	import {prevent} from '../utils'
    	export default{
    		name: 'personal',
    		mounted(){
    			document.body.removeEventListener("touchmove",prevent);
    		},
    	    methods: {
    	    	toAbout:function(){
    	    		this.$router.push("/about");
    	    	}
    	    }
    	};
    </script>
    
    

    //srcpagesabout.vue
    <template>
    	<div class="about">
    		<div class="page-title">	
    			<span @click="goBack" class="goBack"><i class="fa fa-2x fa-angle-left"></i></span>	
    			<h3>关于</h3>	
    		</div>
    		<div class="main">
    			<p>声明:这只是一个练习的demo :( </p>
    		</div>
    	</div>
    </template>
    <script>
    	export default{
    		name: '',
    		data (){
    			return{
    				desc:''
    			}
    		},
    	    methods: {
    	    	goBack: function(){	
    				this.$router.goBack();	
    			}
    	    }
    	};
    </script>
    

    //srcpages	hings.vue
    <template>
    	<div class="things">
    		<div class="things-nav">
    			<swiper :dataList="navList" :activeIndex="activeIndex" ref="navSwiper" :swiperOption="swiperOptionNav" ></swiper>
    		</div>
    		<div class="things-main">
    			<scroller 
    				:on-refresh="refresh" 
    				:refreshText="refreshText" ref="scroller">
    				<span style="20px;height:20px;" class="spinner" slot="refresh-spinner"></span>
    				<div class="things-time">TODAY</div>
    				<swiper 
    					:dataList="navList"  
    					:swiperOption="swiperOptionMain"  ref="mainSwiper">
    					<div slot="swiperMain" slot-scope="slotProps">
    						<div v-for="(item, index) in slotProps.data.dataList" :key="index" class="things-item" >
    							<div class="things-img-wrapper" @click="showDetails(item.id)">
    								<img class="things-item_img" :src="item.img" alt="">
    								<span class="things-item_tips">{{item.author}}</span>
    							</div>
    							<div class="things-item-foot">
    								<div class="foot-desc">
    									<span class="foot-desc_logo"><img :src="item.icon" alt=""></span>
    									<div class="foot-desc_text">
    										<p>{{item.author}}</p>
    										<p class="origin">{{item.origin}}</p>
    									</div>
    								</div>
    								<div class="foot-action">
    									<span @click="like(item)" class="fa fa-meh-o action-up"></span><span  v-show="item.likeNum" class="like">+<i>{{item.likeNum}}</i></span> | <span @click="dislike(item)" class="fa fa-frown-o action-down"></span><span v-show="item.dislikeNum" class="dislike"><i>{{item.dislikeNum}}</i></span>
    								</div>
    							</div>
    						</div>
    					</div>
    				</swiper>
    			</scroller>
    			<div class="to-top" @click="toTop"><i class="fa fa-arrow-up"></i></div>
    		</div>
    	</div>
    </template>
    <script>
    	import { mixin,pageAct } from '../utils'
    	export default{
    		name: 'things',
    		data (){
    			return{
    		        likeNum:0,
    		        dislikeNum:0,
    			}
    		},
    		mixins:[mixin,pageAct],
    		methods:{
    			showDetails: function(index){
    				this.$router.push("/comment/"+index);
    			},
    			getData: function(cb){
    				var self = this;
    				this.$axios.post("/things",{}).then(function(response){
    					console.log('aaaaa...',response)
    					var result = response.data;
    					if(result.code == 200){
    						self.navList  = result.list;
    					}
    					
    				}).catch(function(error){
    					console.log(error);
    				});
    			},
    			loadMore: function(cb){
    				var self = this;
    				this.$axios.post("/things",{author:self.activeIndex}).then(function(response){
    					var result = response.data;
    					cb && cb(result);
    				}).catch(function(error){
    					console.log(error);
    				});
    			}
    		}
    	};
    </script>
    

    //srcpagesdesigner.vue
    
    <template>
    	<div class="designer">
    		<div class="designer-nav">
    			<swiper :dataList="navList" :activeIndex="activeIndex" ref="navSwiper" :swiperOption="swiperOptionNav" ></swiper>
    		</div>
    		<div class="designer-main">
    			<keep-alive>
    			<scroller :on-refresh="refresh" :refreshText="refreshText" ref="scroller">
    				<span style="20px;height:20px;" class="spinner" slot="refresh-spinner"></span>
    				<div class="designer-time">TODAY</div>
    					<swiper :dataList="navList"  ref="mainSwiper" :swiperOption="swiperOptionMain">
    						<div slot="swiperMain" slot-scope="slotProps">
    							<div v-for="(item, index) in slotProps.data.dataList" :key="index" class="designer-item" >
    								<div class="designer-img-wrapper" @click="showDetails(item.id)">
    									<img class="designer-item_img" :src="item.img" alt="">
    									<span class="foot-desc_logo"><img :src="item.icon" alt=""></span>
    								</div>
    								<div class="designer-item-foot">
    									<div class="foot-desc">
    										<div class="foot-desc_text">
    											<p>{{item.author}} | <span class="origin">{{item.origin}}</span></p>
    										</div>
    									</div>
    									<div class="foot-action">
    										<span @click="showTotast" class="foot-actionr_follow">+ 关注</span>
    									</div>
    								</div>
    							</div>
    						</div>
    					</swiper>
    			</scroller>
    		</keep-alive>
    			<div class="to-top" @click="toTop">
    				<i class="fa fa-arrow-up"></i>
    			</div>
    		</div>
    	</div>
    </template>
    <script>
    	import {pageAct} from '../utils'
    	export default{
    		name: 'designer',
    		mixins:[pageAct],
    		methods:{
    			showDetails: function(index){
    				this.$router.push("/details/"+index);
    			},
    			getData: function(cb){
    				var self = this;
    				this.$axios.post("/designer",{}).then(function(response){
    					console.log('designer',response)
    					var result = response.data;
    					if(result.code == 200){
    						self.navList  = result.list;
    					}
    					
    				}).catch(function(error){
    					console.log(error);
    				});
    			},
    			loadMore: function(cb){
    				var self = this;
    				this.$axios.post("/designer",{author:self.activeIndex}).then(function(response){
    					var result = response.data;
    					cb && cb(result);
    				}).catch(function(error){
    					console.log(error);
    				});
    			},
    			showTotast: function(){
    				this.$toast({message:"敬请期待关注功能 :-)"});
    			}
    		}
    	};
    </script>
    

    //srcpagesdetails.vue
    <template>
    	<div class="things-details" >
    		<div class="page-title">
    			<span @click="goBack" class="goBack"><i class="fa fa-2x fa-arrow-circle-left"></i></span>
    			<h3>{{title}}</h3>
    		</div>
    		<div class="details-main">
    			<div class="img-box">
    				<img :src="img" alt="">
    			</div>
    			<div class="things-label">简介</div>
    			<div class="things-desc">
    				<div class="desc-item" v-for="(item, index) in descList" :key="index">
    					<span class="desc-item_icon fl"><i class="fa" :class="item.icon"></i></span>
    					<div class="desc-item_text"><em>{{item.tips}}:</em><p>{{item.text}}</p></div>
    				</div>
    			</div>
    			<div class="things-label">其他作品</div>
    			<div class="desc-img-box clearfix">
    				<div class="desc-img-item" v-for="(item, index) in imgList" :key="index">
    					<div class="img-item_text">—{{item.originate}}—</div>
    					<div class="desc-item_img"><img :src="item.img" alt=""></div>
    				</div>
    			</div>
    			<p class="page-footer">—— 没有了呢 ——</p>
    		</div>
    	</div>
    </template>
    <script>
    	import {prevent,goBack} from '../utils/index.js'
    	export default{
    		name: 'thing-details',
    		mixins:[goBack],
    		data() {
    			return {
    				id:'',
    				title:'',
    				img:'',
    				descList:[
    					{icon:'fa-paint-brush',tips:"派系",text:''},
    					{icon:'fa-map-o',tips:"代表作",text:''},
    					{icon:'fa-newspaper-o',tips:"简介",text:''}
    				],
    				imgList:[]
    			}
    		},
    		created(){
    			this.id = this.$route.params.id;
    			this.loadMore();
    		},
    		mounted(){
    			this.id = this.$route.params.id;
    			document.body.removeEventListener("touchmove",prevent);
    			document.body.addEventListener("touchmove",function(){
    			},{passive: true});
    		},
    		methods:{
    			loadMore: function(cb){
    				var self = this;
    				this.$axios.post("/designer",{id:self.id}).then(function(response){
    					var result = response.data;
    					if(result.code == 200){
    						self.title = result.list.title;
    						self.img = result.list.portrait;
    						self.descList[0].text = result.list.genre;
    						self.descList[1].text = result.list.magnumOpus;
    						self.descList[2].text = result.list.desc;
    
    						self.imgList = result.list.arts;
    					}
    				}).catch(function(error){
    					console.log(error);
    				});
    			}
    		}
    	}
    </script>
    ```vue
    //srcpagescomment.vue
    <template>
    	<div class="comment" >
    		<div class="page-title">
    			<span @click="goBack" class="goBack"><i class="fa fa-2x fa-arrow-circle-left"></i></span>
    			<h3>{{title}}</h3>
    		</div>
    		<div class="comment-main">
    			<div class="comment-main_img">
    				<swiper :dataList="imgList"  ref="imgSwiper" :swiperOption="swiperOptionImg" >
    					<div slot="swiperMain" slot-scope="slotProps">
    						<img class="comment-item_img" :src="slotProps.data.img" alt="">
    					</div>
    				</swiper>
    			</div>
    			<div class="comment-act">
    				<span @click="like" class="fa fa-meh-o action-up"></span><span  v-show="likeNum" class="comment-act__like"><i>+{{likeNum}}</i></span> || 
    				<span @click="dislike" class="fa fa-frown-o action-down"></span><span v-show="dislikeNum" class="comment-act__dislike"><i>{{dislikeNum}}</i></span>
    			</div>
    			<div class="comment-desc">
    				<div class="desc-item" v-for="(item, index) in descList" :key="index">
    					<span class="desc-item_icon fl"><i class="fa" :class="item.icon"></i></span>
    					<div class="desc-item_text"><em>{{item.tips}}:</em><p>{{item.text}}</p></div>
    				</div>
    			</div>
    			<div class="comment-designer-desc">
    				<span class="comment-desc-icon"><img :src="icon" alt=""></span>
    				<h3 class="comment-desc-designer" >{{title}}</h3>
    				<span @click="showTotast" class="foot-actionr_follow">+ 关注</span>
    				<div class="desc-item_text"><p>{{designer}}</p></div>
    			</div>	
    			<div class="comment-designer-word clearfix">
    				<div class="img fr">
    					<img :src="wordImg" alt="">
    				</div>
    				<div class="word">
    					<h4>我同疯子的唯一区别,在于我不是疯子。我同人类的唯一区别,在于我是疯子</h4>
    					<p>——达利</p>
    				</div>
    			</div>
    			<div class="comment-list">
    				<span class="comment-list-tips">评论({{cNum}})</span>
    				<div class="list">
    					<ul>
    						<li v-for="(item,index) in commentList" :key="index">
    							<span class="comment-user_logo fl"><img :src="item.icon" alt=""></span>
    							<div class="comment-content">
    								<p class="user-name">{{item.name}}:</p>
    								<p class="user-time">{{item.time}}</p>
    								<p class="user-word">{{item.content}}</p>
    							</div>
    						</li>
    					</ul>
    				</div>
    				<p class="page-footer">—— 没有了呢 ——</p>
    			</div>		
    		</div>
    		<div class="comment-area" >
    			<span class="icon"><img :src="icon" alt=""></span>
    			<input class="send-input" type="text" placeholder="留下爪印" v-model="sendMsg" @focus="setPosition">
    			<input type="button" class="send-btn" value="评论" @click="send">
    		</div>
    		<transition name="slide-fade">
    			<div class="showNew" v-show="showNew">
    				最新评论:{{commentList[0].content}}
    			</div>
    		</transition>
    	</div>
    </template>
    <script>
    	import  {prevent,mixin}  from '../utils'
    	export default{
    		name: 'comment-details',
    		mixins:[mixin],
    		data() {
    			return {
    				id:'',
    				title:'',
    				img:'',
    				icon:'',
    				wordImg:'',
    				likeNum:0,
    				dislikeNum:0,
    				swiperOptionImg:{
    					autoplay:true,
    					loop :true,
    			        pagination: {
    			          el: '.swiper-pagination',
    			          dynamicBullets: true
    			        }
    				},
    				designer:'',
    				descList:[
    					{icon:'fa-paint-brush',tips:"派系",text:''},
    					{icon:'fa-map-o',tips:"代表作",text:''}
    				],
    				imgList:[],
    				commentList:[
    					{icon:'./static/images/logo.jpg',name:'路人甲',time:'2018-10-01 12:12:12',content:'这是一条评论'},
    					{icon:'./static/images/logo.jpg',name:'路人甲',time:'2018-10-01 12:12:12',content:'这是另外一条评论'},
    					{icon:'./static/images/logo.jpg',name:'路人甲',time:'2018-10-01 12:12:12',content:'这是一条长长长长长长长长长长长长长长长长长长长长长长长长长长长的评论'},
    				],
    				cNum:3,
    				sendMsg:'',
    				showNew:false
    			}
    		},
    		created(){
    			this.id = this.$route.params.id;
    			this.loadData();
    		},
    		mounted(){
    			this.id = this.$route.params.id;
    			document.body.removeEventListener("touchmove",prevent);
    		},
    		watch:{
    			showNew: function(){
    				var self = this;
    				setTimeout(function(){
    					self.showNew = false;
    				},1000);
    			}
    		},
    		methods:{
    			loadData: function(cb){
    				var self = this;
    				this.$axios.post("/designer",{id:self.id}).then(function(response){
    					var result = response.data;
    					if(result.code == 200){
    						self.title = (result.list.title).split("/")[0];
    						self.icon = result.list.icon;
    						self.img = result.list.portrait;
    						self.descList[0].text = result.list.genre;
    						self.descList[1].text = result.list.magnumOpus;
    						self.designer = result.list.desc;
    						self.imgList = result.list.arts;
    						self.wordImg = result.list.arts[0].img;
    					}
    				}).catch(function(error){
    					console.log(error);
    				});
    			},
    			send: function(){
    				if(this.sendMsg){
    					this.commentList.unshift({
    						icon:'./static/images/logo.jpg',name:'路人乙',time:'刚刚',content:this.sendMsg
    					});
    					this.cNum ++;
    					this.showNew = true;
    					this.sendMsg = '';
    				}
    			},
    			setPosition: function(){
    				// 解决安卓手机输入时键盘弹起遮盖输入框的问题
    				document.querySelector(".page-footer").scrollIntoView(true);
    			}
    		}
    	}
    </script>
    

    //srcpagespictoral.vue
    // 这个是对进入页面的动画的处理
    <template>
    	<div class="pictoral">
    		<div class="pictoral-main">
    			 <transition-group name="cell" tag="div" class="container"
    					v-bind:css="false"
    				    v-on:before-enter="beforeEnter"
    				    v-on:enter="enter"
       					v-on:leave="leave">
    				<div v-for="(data, index) in dataList" class="pictoral-item"  
    					:key="index"  
    					:data-index="index" >
    					<span class="pictoral-item_logo"><img :src="data.icon" alt=""></span>
    					<h6>{{data.title}}</h6>
    					<p>——{{data.originate}}</p>
    					<img :src="data.img" alt="">
    					<p>{{data.desc}}</p>
    				</div>
    			</transition-group>
    			<div class="no-more-data"  v-show="noData"><i class="fa fa-hand-o-up"></i><p>没有更多了,试试向上滑动吧!</p></div>
    		</div>
    	</div>
    </template>
    <script>
    	import AlloyFinger from 'alloyfinger'
    	import Velocity from 'velocity-animate/velocity.js'
    	import 'velocity-animate/velocity.ui.js'
    	import {prevent} from '../utils'
    	export default{
    		name: 'pictoral',
    		data (){
    			return{
    				dataList:[],
    				first:0,
    				second:1,
    				third:2,
    				forth:3,
    				slideStart:0,
    				slideEnd:0,
    				activeIndex:0,
    				stop:false,
    				noData:false
    			}
    		},
    		created: function(){
    			this.getData();
    		},
    		mounted: function(){
    			this.bindSlide();
    			document.body.addEventListener("touchmove",prevent);
    		},
    		watch:{
    			activeIndex:function(){
    				var list = document.querySelectorAll(".pictoral-item");
    					this.stop = true;
    					for(var i=0;i < list.length;i++){
    						this.leave(list[i]);
    					}
    				if(this.activeIndex == this.dataList.length){
    					this.noData = true;
    				}else{
    					this.noData = false;
    				}
    			},
    			slideEnd: function(){
    				if(!this.stop){
    					if(this.slideEnd - this.slideStart > 20){
    						if(!this.noData){
    							this.first += 1;
    							this.second += 1;
    							this.third += 1;
    							this.forth += 1;
    							this.activeIndex++;
    						}
    					}else if(this.slideEnd - this.slideStart < -20){
    						if(this.first > 0){
    				       		this.first -= 1;
    							this.second -= 1;
    							this.third -= 1;
    							this.forth -= 1;
    							this.activeIndex--;
    						}
    					}
    				}
    			}
    		},
    		methods:{
    			beforeEnter: function (el) {
    		      el.style.opacity = 0;
    		      el.style.height = 0;
    		    },
    		    enter: function (el, done) {
    		      var delay = el.dataset.index * 50;
    		      var top = '';
    		      var width = this.setWidth(el.dataset.index);
    
    		      if(el.dataset.index >= (this.first + 4)){
    		      	top = 15 + "%";
    		      }else{
    		      	top = (4 - (el.dataset.index - this.first))*8 + "%";
    		      }
    		      setTimeout(function () {
    		        Velocity(
    		          el,
    		          { opacity: 1, 
    		          	height: '80%',
    		          	translateY:top,
    		          	width,
    		          	zIndex: 1000 - el.dataset.index
    		          },
    		          { complete: done }
    		        )
    		      }, delay);
    		    },
    		    leave: function (el, done) {
    		      var self = this;
    		      var top = '';
    		      var delay = el.dataset.index * 10;
    		      var width = this.setWidth(el.dataset.index);
    
    		      if(el.dataset.index < this.first){
    		      	top = "99%";
    		      }else{
    		      	if(el.dataset.index >= (this.first + 4)){
    			      	top = 15 + "%";
    			      }else{
    			      	top = (4 - (el.dataset.index - this.first))*10 + "%";
    			      }
    		      }
    		      	Velocity(
    		          el,
    		          { 
    		          	width,
    		          	translateY:top
    		          },{
    		          	mobileHA:true,
    		          	easing: [ 0.4, 0.01, 0.165, 0.99 ],
    		          	complete: function(){
    			          	if(el.dataset.index == (self.dataList.length - 1)){
    			          		self.stop = false;
    			          	}
    		      	    } 
    		          }
    		        );
    		    },
    			bindSlide: function(){
    				var self = this;
    				var el = document.querySelector(".pictoral-main");
    				var fl = new AlloyFinger(el,{
    					touchStart: function(evt){
    						self.slideStart = evt.changedTouches[0].clientY;
    					},
    					touchMove: function(evt){
    						self.slideEnd = evt.changedTouches[0].clientY;
    					},
    	   				touchEnd:function (evt) { 
    	   					self.slideEnd = evt.changedTouches[0].clientY;
    	   				}
    				});
    			},
    			setWidth: function(index){
    				return index == this.first   ? '76%' :
    					   index == this.second  ? '68%' :
    					   index == this.third   ? '56%' : '40%';
    			}, 
    			getData: function(){
    				var self = this;
    				this.$axios.post("/pictoral",{}).then(function(response){
    					var result = response.data;
    					if(result.code == 200){
    						self.dataList =self.dataList = result.list;
    					}
    				}).catch(function(error){
    					console.log(error);
    				});
    			}
    		}
    	};
    </script>
    

    昏昏欲睡

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  • 原文地址:https://www.cnblogs.com/smart-girl/p/11160453.html
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