• vue实现ajax滚动下拉加载,同时具有loading效果


    <!doctype html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>vue测试ajax的使用</title>
    <meta id="viewport" name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
    <style>
    *{ padding:0; margin:0}
    .list ul li{padding:10px 5px 10px 10px;overflow:hidden;zoom:1;position:relative;border-bottom:1px solid #e8e8e8;}
    .list ul li .img{margin-right:10px;display:block;60px;float:left;}
    .list ul li img{60px;height:60px;border-radius:8px;}
    .list ul li p{-webkit-box-flex:1;color:#777;overflow:hidden;padding-right:70px;}.list ul li p em{margin:7px 0;}
    .list ul li p a{display:block;height:16px;line-height:16px;overflow:hidden;font-size:15px;}
    .list ul li p span{display:block;line-height:16px;height:16px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font:12px "5FAE8F6F96C59ED1";}
    .list ul li p u{margin:0 6px;padding:0 6px;border-left:1px solid #d9d9d9;border-right:1px solid #d9d9d9;}
    .list ul li .btn { 40px;height: 25px;padding-top: 35px;color: #65bb0a;line-height:25px;text-align:center;background: none;position:absolute;right:5px; top:12px}
    .list ul li .btn .bg {position: absolute;left: 0;top: 0;display: inline-block; 100%;height: 30px;repeat;background-size: 26px auto;}
    .get-more,.loading{display:block;padding:15px 0; line-height:16px;text-align:center;font-size:14px;}
    .loading{75px; margin:0 auto; background:url(imgs/loading.gif) 0 center no-repeat; padding-left:15px; background-size:13px auto}
    </style>
    </head>
    
    <body>
    <div class="list" id="app" v-scroll="getMore">
        <ul>
            <li v-for="item in games">
                <a v-bind:href="item.url" class="img"><img v-bind:src="item.img"></a>
                <p>
                    <a v-bind:href="item.url">{{item.title}}</a>
                    <em class="lstar4"></em>
                    <span>{{item.server}}<u>39.9M</u>v2.1.3</span>
                </p>
                <a v-bind:href="item.url" class="btn"><em class="bg"></em>下载</a>
            </li>
        </ul>
        <div>
            <p class="get-more" v-on:click="getMore()" v-show="switchShow">点击加载更多</p>
            <p class="loading" v-show="!switchShow">加载中...</p>
        </div>
    </div>
    
    <script src="js/vue.js"></script>
    <script src="http://cdn.bootcss.com/vue-resource/1.0.3/vue-resource.min.js"></script>
    <!--<script src="http://211.149.193.19:8090/vue-tutorials/04.OAuth/jquery-zepto/js/zepto.js"></script>-->
    <script>
    var vm = new Vue({
        el:'#app',
        data: {
            url: 'http://*******.com/dynamic.php?s=/Afs/ajaxHisTestServerData/cate_id/4/sta/',
            nowPage: 0,
            switchShow:false,
            games: []
        },
        methods: {
            moreFn: function (itemIndex) {
                // console.log(this.nowPage)
                this.$http.jsonp(this.url + itemIndex*10).then(function (response) {
                    this.games=this.games.concat(response.body);
                    this.switchShow=!this.switchShow;
                  }, function (response) {
                      console.log(response)
                });
                
            },
            getMore: function () {
                this.switchShow=!this.switchShow;
                this.nowPage++;
                this.moreFn(this.nowPage);
            },
            init: function () {
                this.moreFn(this.nowPage);
            }
        },
        directives: {// 自定义指令
          scroll: {
            bind: function (el, binding){
              window.addEventListener('scroll', function () {
                if(document.body.scrollTop + window.innerHeight >= el.clientHeight) {
                  var fnc = binding.value;   
                  fnc(); 
                }
              })
            }
          }
        }
    })
    vm.init();
    </script>
    </body>
    </html>

     功能介绍:

    1.vue进行ajax请求加载;

    2.实现滚动,点击加载数据;

    3.通过自定义实现loading 效果;

    难点:

    1.需要官方的vue-resource组件,进行ajax请求,所以需要了解该API;

    2.loading,通过v-show进行判断显示不同的loading 效果;

    3.自定义指令,也是最难点,所以需要了解基本的自定义指令API;

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  • 原文地址:https://www.cnblogs.com/cainiaoz/p/6270190.html
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