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skyline-scroll-api

skyline-scroll-api

github.com/wechat-miniprogramDevelopment55922 installsUpdated 21w ago
Repository

About skyline-scroll-api

skyline-scroll-api is a Skyline scrolling API reference skill for WeChat Mini Program developers. It covers how to obtain and use ScrollViewContext, DraggableSheetContext, and worklet interfaces.

Key features

  1. 01Covers three groups of scrolling APIs
  2. 02Scrolls to a position or element
  3. 03Controls pull-to-refresh and two-level views
  4. 04Explains DraggableSheet position control
  5. 05Describes worklet scrolling on the UI thread

Use cases

  1. 01Triggering or closing pull-to-refresh in code
  2. 02Scrolling a scroll-view to an offset or element
  3. 03Setting the position of a DraggableSheet panel
  4. 04Controlling scrolling from a gesture in a worklet

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/wechat-miniprogram/skyline-skills --skill skyline-scroll-api

After installing, type/skyline-scroll-apiin Claude Code to confirm it loaded.

Bundled files

References and scripts installed along with SKILL.md.

references/
patterns.md
references/api/
draggable-sheet-context.md
scroll-view-context.md
worklet-scroll-context.md

Details

From the project README

Skyline 滚动控制 API

适用场景

  • 程序化触发 scroll-view 下拉刷新或关闭刷新
  • 程序化触发/关闭下拉二级("二楼"页面)
  • 通过 ScrollViewContext 控制滚动位置和行为
  • 控制 DraggableSheet 半屏面板滚动到指定位置
  • 在 worklet 函数中(UI 线程)直接控制 scroll-view 滚动

核心概念

三大 API 族群
API 族群获取方式线程最低基础库
ScrollViewContextNodesRef.node() + enhanced 属性逻辑线程2.14.4
DraggableSheetContextNodesRef.node()逻辑线程3.2.0
worklet.scrollViewContextNodesRef.ref() + SharedValueUI 线程3.3.0
获取实例
// ScrollViewContext(需开启 enhanced)
wx.createSelectorQuery().select('#scrollview').node()
  .exec(res => { const ctx = res[0].node })

// DraggableSheetContext
wx.createSelectorQuery().select('.sheet').node()
  .exec(res => { const ctx = res[0].node })

// worklet.scrollViewContext(通过 ref)
this.scrollRef = wx.worklet.shared()
this.createSelectorQuery().select('.scrollable')
  .ref(res => { this.scrollRef.value = res.ref }).exec()

文档索引

根据需求快速定位(路径相对于 references/):

我想要...查阅文档
查看 ScrollViewContext 全部方法和属性api/scroll-view-context.md
了解 DraggableSheetContext.scrollTo 参数api/draggable-sheet-context.md
在 worklet 中控制滚动api/worklet-scroll-context.md
查看完整代码模式(刷新、二级、Sheet 控制)patterns.md

强制规则

MUST(必须遵守)
  1. scroll-view 必须开启 enhanced 属性才能获取 ScrollViewContext:

    <!-- ❌ 错误:未开启 enhanced,node() 返回的不是 ScrollViewContext -->
    <scroll-view type="list" scroll-y>
    
    <!-- ✅ 正确 -->
    <scroll-view type="list" scroll-y enhanced>
    
  2. DraggableSheetContext.scrollTo 中 size 和 pixels 同时传入时,仅 size 生效:

    // ❌ 错误:同时传入 size 和 pixels,pixels 被忽略
    sheetContext.scrollTo({ size: 0.7, pixels: 200 })
    
    // ✅ 正确:二选一
    sheetContext.scrollTo({ size: 0.7 })   // 相对位置
    sheetContext.scrollTo({ pixels: 200 }) // 绝对位置
    
  3. worklet.scrollViewContext 必须通过 NodesRef.ref 获取引用并存入 SharedValue:

    // ❌ 错误:使用 node() 而非 ref()
    this.createSelectorQuery().select('.scroll').node()
      .exec(res => { /* 这是 ScrollViewContext,不是 worklet 引用 */ })
    
    // ✅ 正确:使用 ref() + shared()
    this.scrollRef = wx.worklet.shared()
    this.createSelectorQuery().select('.scroll')
      .ref(res => { this.scrollRef.value = res.ref }).exec()
    
  4. 调用 worklet.scrollViewContext.scrollTo 的函数必须声明 'worklet' 指令:

    // ❌ 错误:缺少 worklet 指令
    onTap() {
      scrollViewContext.scrollTo(this.scrollRef.value, { top: 200 })
    }
    
    // ✅ 正确
    onTap() {
      'worklet'
      scrollViewContext.scrollTo(this.scrollRef.value, { top: 200 })
    }
    
NEVER(禁止行为)
  1. NEVER 在逻辑线程中调用 worklet.scrollViewContext.scrollTo——该 API 仅在 UI 线程(worklet 函数内)可用
  2. NEVER 在小程序插件中使用 worklet.scrollViewContext.scrollTo——该 API 不支持小程序插件

Quick Reference

ScrollViewContext 方法速查
方法说明最低基础库
scrollTo({ top, left, velocity, duration, animated })滚动至指定位置2.14.4
scrollIntoView(selector, options?)滚动至指定元素2.14.4
triggerRefresh({ duration?, easingFunction? })触发下拉刷新3.0.0
closeRefresh()关闭下拉刷新3.0.0
triggerTwoLevel({ duration?, easingFunction? })触发下拉二级3.0.0
closeTwoLevel({ duration?, easingFunction? })关闭下拉二级3.0.0
ScrollViewContext 属性速查
属性类型说明
scrollEnabledboolean滚动开关
bouncesboolean边界弹性(仅 iOS)
showScrollbarboolean显示滚动条
pagingEnabledboolean分页滑动
fastDecelerationboolean快速减速(仅 iOS)
decelerationDisabledboolean取消滚动惯性(仅 iOS)
场景决策表
场景推荐 API
程序化触发下拉刷新ScrollViewContext.triggerRefresh()
数据加载完成后关闭刷新ScrollViewContext.closeRefresh()
打开/关闭下拉二级triggerTwoLevel() / closeTwoLevel()
滚动到指定偏移量ScrollViewContext.scrollTo({ top })
滚动到指定元素ScrollViewContext.scrollIntoView(selector)
控制 DraggableSheet 位置DraggableSheetContext.scrollTo({ size })
UI 线程中控制滚动(配合手势)worklet.scrollViewContext.scrollTo()
程序化刷新最小示例
// 获取 ScrollViewContext
wx.createSelectorQuery().select('#sv').node().exec(res => {
  const ctx = res[0].node
  ctx.triggerRefresh({ duration: 300 })
  // 数据加载完成后
  setTimeout(() => ctx.closeRefresh(), 2000)
})

相关技能

场景推荐技能说明
scroll-view 组件属性和事件skyline-componentsscroll-view/draggable-sheet 组件详解
Worklet 动画系统skyline-workletSharedValue、timing/spring、worklet 基础
页面转场路由skyline-route自定义路由、预设路由
Skyline 概览与迁移skyline-overview渲染引擎概览、兼容性

References 目录结构

references/
├── api/
│   ├── draggable-sheet-context.md
│   ├── scroll-view-context.md
│   └── worklet-scroll-context.md
└── patterns.md

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