vant/docs/examples-docs/en-US/waterfall.md

Waterfall

Install

Global registration

import Vue from 'vue';
import { Waterfall } from 'vant';

Vue.use(Waterfall);

Local registration

If you just watch to use Waterfall in a component, you can register the directive in the component.

import { Waterfall } from 'vant';

export default {
  directives: {
    WaterfallLower: Waterfall('lower'),
    WaterfallUpper: Waterfall('upper')
  }
};

Usage

Basic Usage

:::demo Basic Usage

<p class="page-desc">This list will load items will scroll to bottom.</p>
<ul
  v-waterfall-lower="loadMore"
  waterfall-disabled="disabled"
  waterfall-offset="400">
  <li v-for="item in list">{{ item }}</li>
</ul>

export default {
  data() {
    return {
      list: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
      disabled: false
    };
  },

  directives: {
    WaterfallLower: Waterfall('lower')
  },

  methods: {
    loadMore() {
      this.disabled = true;
      setTimeout(() => {
        for (let i = 0; i < 5; i ++) {
          this.list.push(this.list.length);
        }
        this.disabled = false;
      }, 200);
    }
  }
};

:::

API

Attribute	Description	Type	Default	Accepted Values
v-waterfall-lower	Function to trigger when scroll to bottom	Function	-	-
v-waterfall-upper	Function to trigger when scroll to top	Function	-	-
waterfall-disabled	Key of the property to control disable status in instance	String	-	-
waterfall-offset	Offset to trigger callback function	Number	300	-