npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2024 – Pkg Stats / Ryan Hefner

rax-scrollview

v3.7.8

Published

ScrollView component for Rax.

Downloads

281

Readme

rax-scrollview

npm

支持

Web / Weex / 阿里小程序 / 微信小程序 / 字节跳动小程序

描述

ScrollView 是一个包装了滚动操作的组件。一般情况下需要一个确定的高度来保证 ScrollView 的正常展现。

安装

$ npm install rax-scrollview --save

属性

| 属性 | 类型 | 默认值 | 必填 | 描述 | 支持 | | ------------------------------ | ---------- | ---------- | -------- | ----------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | scrollEventThrottle | number | 50 | false | 这个属性控制在滚动过程中,scroll 事件被调用的频率,用于滚动的节流 | | | horizontal | boolean | - | false | 设置为横向滚动 | | | scrollTop | number | 0 | false | 竖向滚动距离,优先级高于scrollTo方法(注:运行时小程序无法生效,请使用 scrollTo 方案) | | | scrollLeft | number | 0 | false | 横向滚动距离,优先级高于scrollTo方法(注:运行时小程序无法生效,请使用 scrollTo 方案) | | | showsHorizontalScrollIndicator | boolean | true | false | 是否允许出现水平滚动条 | | | showsVerticalScrollIndicator | boolean | true | false | 是否允许出现垂直滚动条 | | | 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 | | | onScroll | function | - | false | 滚动时触发的事件,返回当前滚动的水平垂直距离 | | | onTouchStart | function | - | false | touchStart 触发的事件,返回触摸点数据(touches、changedTouches) | | | onTouchMove | function | - | false | touchMove 触发的事件,返回触摸点数据(touches、changedTouches) | | | onTouchEnd | function | - | false | touchEnd 触发的事件,返回触摸点数据(touches、changedTouches) | | | onTouchCancel | function | - | false | touchCancel 触发的事件,返回触摸点数据(touches、changedTouches) | | | disableScroll | boolean | - | false | 是否禁止滚动, [email protected] 及以上版本支持 | |

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 | 支持 | | -------- | --------- | ---------- | -------- | --------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | 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 | |

scrollIntoView({id: string, animated?: boolean, duration?: number, offsetX?: number, offsetY?: number})

参数

参数为 object,包含以下属性

| 属性 | 类型 | 默认值 | 必填 | 描述 | 支持 | | -------- | --------- | ---------- | -------- | --------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | id | string | - | 是 | 需要滚动到的元素 id | | | 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 | | | offsetX | number | - | 否 | 滚动的额外 X 偏移 | | | offsetY | number | - | 否 | 滚动的额外 Y 偏移 | |

示例

import { createElement, Component, render, createRef } from 'rax';

import DriverUniversal from 'driver-universal';
import View from 'rax-view';
import Text from 'rax-text';
import ScrollView from 'rax-scrollview';

function Thumb() {
  return (
    <View style={styles.button}>
      <View style={styles.box} />
    </View>
  );
}

const THUMBS = new Array(20).fill(1);
const createThumbRow = (val, index) => <Thumb key={index} />;

class App extends Component {
  state = {
    horizontalScrollViewEventLog: false,
    scrollViewEventLog: false,
  };
  constructor(props) {
    super(props);
    this.horizontalScrollView = createRef();
  }

  render() {
    return (
      <View style={styles.root}>
        <View style={styles.container}>
          <ScrollView
            ref={this.horizontalScrollView}
            style={{
              height: '100rpx',
            }}
            horizontal={true}
            onEndReached={() =>
              this.setState({ horizontalScrollViewEventLog: true })
            }
          >
            {THUMBS.map(createThumbRow)}
          </ScrollView>

          <View
            style={styles.button}
            onClick={() => {
              this.horizontalScrollView.current.scrollTo({ x: 0 });
            }}
          >
            <Text>Scroll to start</Text>
          </View>

          <View style={styles.eventLogBox}>
            <Text>
              {this.state.horizontalScrollViewEventLog ? 'onEndReached' : ''}
            </Text>
          </View>
        </View>

        <View style={{ ...styles.container, height: '500rpx' }}>
          <ScrollView
            ref={scrollView => {
              this.scrollView = scrollView;
            }}
            onEndReached={() => this.setState({ scrollViewEventLog: true })}
          >
            <View>
              <View style={styles.sticky}>
                <Text>Cannot sticky</Text>
              </View>
            </View>

            <View style={styles.sticky}>
              <Text>Sticky view must in ScrollView root</Text>
            </View>

            {THUMBS.map(createThumbRow)}
          </ScrollView>

          <View
            style={styles.button}
            onClick={() => {
              this.scrollView.scrollTo({ y: 0 });
            }}
          >
            <Text>Scroll to top</Text>
          </View>

          <View style={styles.eventLogBox}>
            <Text>{this.state.scrollViewEventLog ? 'onEndReached' : ''}</Text>
          </View>
        </View>
      </View>
    );
  }
}

const styles = {
  root: {
    width: '750rpx',
    paddingTop: '20rpx',
  },
  sticky: {
    position: 'sticky',
    width: '750',
    backgroundColor: '#cccccc',
  },
  container: {
    padding: '20rpx',
    borderStyle: 'solid',
    borderColor: '#dddddd',
    borderWidth: '1rpx',
    marginLeft: '20rpx',
    marginRight: '20rpx',
    marginBottom: '10rpx',
  },
  button: {
    margin: '7rpx',
    padding: '5rpx',
    alignItems: 'center',
    backgroundColor: '#eaeaea',
    borderRadius: '3rpx',
  },
  box: {
    width: '64rpx',
    height: '64rpx',
  },
  eventLogBox: {
    padding: '10rpx',
    margin: '10rpx;,
    height: '80rpx',
    borderWidth: '1rpx',
    borderColor: '#f0f0f0',
    backgroundColor: '#f9f9f9',
  },
};

render(<App />, document.body, { driver: DriverUniversal });