上拉加载下拉刷新 Pull

基本用法

**注意:因为仅支持触摸事件，所以请打开chrome手机模拟查看demo

<template lang="html">
<main>
     <div class="demo-hidden">
    <img src='https://static.zhongan.com/website/health/zarm/images/icons/state.png' :style='{width:0,height:0}' />
    <za-panel>
      <za-panel-header title="基本"></za-panel-header>
      <za-panel-body>
        <za-pull :on-refresh='refresh(1)' :refreshing='refreshing1'>
          <za-cell v-for='(i, index) in myData1' :key='index'>ID号 {{i}} </za-cell>
        </za-pull>
      </za-panel-body>
    </za-panel>
    <za-panel>
      <za-panel-header title="上拉加载下拉刷新 Pull"></za-panel-header>
      <za-panel-body>
        <za-pull :on-refresh='refresh(2)' :refreshing='refreshing2' :loading='loading' :on-load='loadData'>
          <za-cell v-for='(i, index) in myData2' :key='index'>ID号 {{i}} </za-cell>
          <!-- 此处的几个slot用来覆盖默认样式，定义的会覆盖，不定义的依然使用默认样式 -->
          <template slot-scope='props' slot='refreshPull'>
            <div class='custom-control' :style='{
              transform: `scale(${props.percent / 100})`
              }'>
              <img src='https://static.zhongan.com/website/health/zarm/images/icons/state.png' alt="" />
            </div>
          </template>
          <template slot-scope='props' slot='refreshDrop'>
            <div class='custom-control'>
              释放加载
            </div>
          </template>
          <template slot-scope='props' slot='refreshLoading'>
            <div class='custom-control'>
              <za-spinner class="rotate360" />
            </div>
          </template>
          <template slot-scope='props' slot='refreshSuccess'>
            <div class='custom-control'>
              加载成功
            </div>
          </template>
        </za-pull>
      </za-panel-body>
    </za-panel>
  </div>
</main>
</template>
<script>
let times = 0;
export default {
  mounted() {
    this.refreshing2 = true
    setTimeout(() => {
      this.myData2 = [1,2,3,4,5,6,7,8,9,10]
      this.refreshing2 = false
    }, 1500)
  },
  data() {
    return {
      myData1: [1,2,3,4],
      myData2: [],
      refreshing1: false,
      refreshing2: false,
      loading: false,
    }
  },
  methods: {
    random(length){
      const newData = [];
      for(let i = 0; i < length; i++){
        newData.push(Math.round(Math.random() * 100))
      }
      return newData;
    },
    refresh(index) {
      return () => new Promise((resolve, reject) => {
        this[`refreshing${index}`] = true;
        setTimeout(() => {
          let length = index == 1 ? this.myData1.length : this.myData2.length
          this[`myData${index}`] = this.random(length);
          resolve(true);
          this[`refreshing${index}`] = false;
        }, 1000)
      })
    },
    loadData() {
      this.loading = true
      return new Promise((resolve, reject) => {
        setTimeout(() => {
          if (Math.random() > 0.8) {
            return reject(false); // capture error and reject it
          };
          if(times < 2){
            const length = this.myData2.length + 1
            for(let i = 0; i < 10; i++) {
              this.myData2.push( length + i);
            }
            resolve(true) // has more
          }else{
            resolve(false) // no more
          }
          this.loading = false
          times++;
        }, 1200)
      })
    }
  }
}
</script>

上拉加载下拉刷新(自定义提示内容)

使用 scopedSlots 来覆盖默认的样式

上拉刷新的几个状态分别为 refreshPull, refreshDrop, refreshLoading, refreshSuccess, refreshFailure 分别对应各自的 scopedSlots。

下拉加载的几个状态分别为 loadComplete, loadLoading, loadFailure 分别对应各自的 scopedSlots。

scopedSlots 用来覆盖默认样式，定义的会覆盖，不定义的默认使用内定样式

<template>
<za-panel-body>
  <za-pull :on-refresh='refresh' :refreshing='refreshing' :loading='loading' :on-load='loadData'>
    <za-cell v-for='i in myData' :key='i'>第 {{i}} 行</za-cell>

    <template scope='props' slot='refreshPull'>
      <div class='custom-control' :style='{
        transform: `scale(${props.percent / 100})`
        }'>
        <img src='https://static.zhongan.com/website/health/zarm/images/icons/state.png' alt="" />
      </div>
    </template>

    <template scope='props' slot='refreshDrop'>
      <div class='custom-control'>
        释放加载
      </div>
    </template>

    <template scope='props' slot='refreshLoading'>
      <div class='custom-control'>
        <za-spinner class="rotate360" />
      </div>
    </template>

    <template scope='props' slot='refreshSuccess'>
      <div class='custom-control'>
        加载成功
      </div>
    </template>

  </za-pull>
</za-panel-body>
</template>
<script>
export default{
    data() {
      return {
        myData: [1,2,3,4],
        refreshing: false,
        loading: false,
      }
    },
    methods: {
      random(length){
        const newData = [];
        for(let i = 0; i < length; i++){
          newData.push(Math.round(Math.random() * 100))
        }
        return newData;
      },
      refresh() {
        this.refreshing = true;
        return new Promise((resolve, reject) => {
          fetch().then(res => {
            this.refreshing = false;
            resolve(true);
          }).catch(e => {
            this.refreshing = false;
            reject(false)
          })
        })
      },
      loadData() {
        this.loading = true
        return new Promise((resolve, reject) => {
          fetch().then(res => {
            this.loading = false;
            resolve(true);
            // or resolve(false);
          }).catch(e => {
            this.loading = false;
            reject(false)
          })
        })
      }
    },
}
</script>

on-refresh, on-load 这两个回调函数要求返回一个 Promise 对象。对于on-refresh来说，resolve时表示刷新成功，reject则表示刷新失败。而对于on-load来说，resolve(true) 表示加载成功，并且还有更多数据，resolve(false) 表示加载成功，但后续没有数据了。reject则表示加载失败。

注意: zarm-vue 本身并不带有 Promise 库，请您根据自己的运行环境决定是否需要用引入 Promise Pollyfill.

API

Pull Attributes