render-waterfall

描述

用于实现瀑布流的列表容器

安装

$ npm install render-waterfall --save

属性

| 属性 | 类型 | 默认值 | 必填 | 描述 | | --------------------- | ---------- | ---------- | -------- | ----------------------------------------------- | | dataSource | array | - | true | 瀑布流数组，需要传入模块高度 | | renderItem | function | - | true | 渲染每项的模板 | | renderHeader | function | - | false | 渲染 header 部分 | | renderFooter | function | - | false | 渲染 footer 部分 | | columnWidth | number | 750 | false | 列宽 | | columnCount | number | 1 | false | 列数 | | columnGap | number | 0 | false | 列间距 | | cellProps | object | - | false | weex Cell 组件的 props | | onEndReachedThreshold | number | 500 | false | 设置加载更多的偏移 | | onEndReached | function | - | false | 滚动区域还剩onEndReachedThreshold的长度时触发 | | leftGap | number | 0 | false | 距离左边的间隙 | | rightGap | number | 0 | false | 距离右边的间隙 |

方法

scrollTo({x: number,y: number, animated?: boolean, duration?: number})

参数

参数为 object，包含以下属性

| 属性 | 类型 | 默认值 | 必填 | 描述 | | -------- | --------- | ---------- | -------- | --------------------------------------------------------------------------------- | | x | number | - | 否 | 横向的偏移量 | | y | number | - | 否 | 纵向的偏移量 | | animated | boolean | true | 否 | 在设置滚动条位置时使用动画过渡 | | duration | number | 400 | 否 | 当 animated 设置为 true 时，可以设置 duration 来控制动画的执行时间，单位 ms |

示例

import View from "render-view";
import Text from "render-text";
import Waterfall from "render-waterfall";
import { useState } from "react";

let data = [
  { height: 550, item: {} },
  { height: 624, item: {} },
  { height: 708, item: {} },
  { height: 600, item: {} },
  { height: 300, item: {} },
  { height: 100, item: {} },
  { height: 400, item: {} },
  { height: 550, item: {} },
  { height: 624, item: {} },
  { height: 708, item: {} },
  { height: 600, item: {} },
  { height: 300, item: {} },
  { height: 100, item: {} },
  { height: 400, item: {} },
];

const App = () => {
  const [dataSource, setDataSoruce] = useState(data);

  const loadMore = () => {
    setTimeout(() => {
      setDataSoruce(dataSource.concat(dataSource));
    }, 1000);
  };

  return (
    <View
      style={{ position: "absolute", top: 0, bottom: 0, left: 0, right: 0 }}
    >
      <View>first module</View>
      <Waterfall
        columnWidth={150}
        columnCount={4}
        columnGap={50}
        dataSource={dataSource}
        renderHeader={() => {
          return [
            <View
              key="1"
              style={{
                width: 750,
                height: 100,
                backgroundColor: "yellow",
                marginBottom: 20,
              }}
            >
              header1
            </View>,
            <View
              key="2"
              style={{
                width: 750,
                height: 100,
                backgroundColor: "green",
                marginBottom: 20,
              }}
            >
              header2
            </View>,
          ];
        }}
        renderFooter={() => {
          return (
            <View
              key="3"
              style={{
                width: 750,
                height: 300,
                backgroundColor: "blue",
                marginTop: 20,
              }}
            >
              footer1
            </View>
          );
        }}
        renderItem={(item, index) => {
          return (
            <View
              key={index}
              style={{
                height: item.height,
                backgroundColor: "red",
                marginBottom: 20,
              }}
            >
              <Text>{index}</Text>
              {/* {index} */}
            </View>
          );
        }}
        onEndReached={loadMore}
      />
    </View>
  );
};

export default App;