skyline-worklet

Q: How do I install skyline-worklet?

Run npx skills add https://github.com/wechat-miniprogram/skyline-skills --skill skyline-worklet in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/skyline-worklet/ (personal) or .claude/skills/skyline-worklet/ (project).

by wechat-miniprogramFrontend & Design

Skyline Worklet 动画系统技能。使用 worklet 函数、共享变量（SharedValue）、动画类型（timing/spring/decay）、Easing 缓动函数、组合动画和线程通信（runOnUI/runOnJS）开发高性能交互动画时使用此技能。适用于拖拽、手势跟随、弹簧回弹等需要 UI 线程直接响应的动画场景。触发关键词：worklet、worklet 动画、SharedValue、共享变量、timing、spring、decay、Easing、runOnUI、runOnJS、applyAnimatedStyle、交互动画、手势动画、UI 线程动画。

Installs: 1K
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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/wechat-miniprogram/skyline-skills --skill skyline-worklet

01
Install
Run the command in your project. The CLI asks which agents to install for.
02
Describe the task
Ask your agent for something this skill covers. It loads skyline-worklet automatically when relevant.
03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Worklet 动画系统

适用场景

实现手势跟随、拖拽等交互动画
使用 timing/spring/decay 创建动画效果
通过 SharedValue 驱动节点样式变化
组合多段动画（序列、重复、延迟）
在 UI 线程和 JS 线程间传递数据

核心概念

双线程架构与 Worklet 的意义

小程序双线程架构中，UI 事件需跨线程传递到 JS 线程再回传，交互动画会有明显延迟。Worklet 动画让动画逻辑直接运行在 UI 线程，实现类原生动画体验。

三大核心概念

概念	说明	关键 API
worklet 函数	可运行在 JS 或 UI 线程的函数，顶部声明 `'worklet'` 指令	`runOnUI()`, `runOnJS()`
共享变量	跨线程同步的变量，通过 `.value` 读写	`shared()`, `derived()`
动画驱动	将 SharedValue 绑定到节点样式	`applyAnimatedStyle()`

基本流程

const { shared, timing } = wx.worklet

// 1. 创建共享变量
const offset = shared(0)

// 2. 绑定到节点样式（updater 为 worklet 函数）
this.applyAnimatedStyle('#box', () => {
  'worklet'
  return { transform: `translateX(${offset.value}px)` }
})

// 3. 修改值驱动动画
offset.value = timing(300, { duration: 200 })

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
了解 worklet 架构和完整概念	`core/worklet-overview.md`
使用 SharedValue 和 DerivedValue	`base/shared-derived.md`
在 worklet 中操作 scroll-view	`base/scroll-view-context.md`
使用 timing/spring/decay 动画	`animation/timing-spring-decay.md`
查看 Easing 缓动函数	`animation/easing.md`
使用序列/重复/延迟组合动画	`animation/combine-animation.md`
了解 runOnUI/runOnJS 线程通信	`tool/thread-communication.md`

强制规则

MUST: worklet 函数必须声明 `'worklet'` 指令

// ✅ Correct
function handleGesture(evt) {
  'worklet'
  offset.value += evt.deltaX
}

// ❌ Incorrect - 缺少 'worklet' 指令，无法在 UI 线程执行
function handleGesture(evt) {
  offset.value += evt.deltaX
}

MUST: SharedValue 必须通过 `.value` 读写

// ✅ Correct
const offset = shared(0)
offset.value = 100

// ❌ Incorrect - 直接赋值会替换整个 SharedValue 对象
const offset = shared(0)
offset = 100

MUST: 访问非 worklet 函数必须使用 `runOnJS`

// ✅ Correct
function showModal(msg) {
  wx.showModal({ title: msg })
}
function handleTap() {
  'worklet'
  const fn = this.showModal.bind(this)
  runOnJS(fn)('hello')
}

// ❌ Incorrect - worklet 中直接调用普通函数
function handleTap() {
  'worklet'
  this.showModal('hello')
}

MUST: 页面方法必须通过 `this.methodName.bind(this)` 访问

// ✅ Correct
handleTap() {
  'worklet'
  const showModal = this.showModal.bind(this)
  runOnJS(showModal)(msg)
}

// ❌ Incorrect - 未 bind(this)，this 指向丢失
handleTap() {
  'worklet'
  runOnJS(this.showModal)(msg)
}

MUST: Worklet 动画仅在 Skyline 渲染模式下可用

确保 app.json 配置 "renderer": "skyline"
确保开发者工具勾选「将 JS 编译成 ES5」

NEVER: 在 worklet 函数中直接调用 `wx` API

必须通过 runOnJS 回到 JS 线程。

NEVER: 通过解构 `this.data` 访问属性

会导致 Object.freeze 冻结 this.data，setData 将失效。

// ✅ Correct
handleTap() {
  'worklet'
  const msg = this.data.msg
}

// ❌ Incorrect - 解构会冻结整个 this.data
handleTap() {
  'worklet'
  const { msg } = this.data
}

Quick Reference

API 速查表

分类	API	说明
基础	`shared(initialValue)`	创建 SharedValue
基础	`derived(updaterWorklet)`	创建衍生值（类比 computed）
基础	`cancelAnimation(sharedValue)`	取消动画
动画	`timing(toValue, options?, callback?)`	时间曲线动画（默认 300ms）
动画	`spring(toValue, options?, callback?)`	弹簧物理动画
动画	`decay(options?, callback?)`	滚动衰减动画
组合	`sequence(anim1, anim2, ...)`	依次执行
组合	`repeat(anim, reps, reverse?, callback?)`	重复（负值=无限）
组合	`delay(ms, anim)`	延迟执行
工具	`runOnUI(workletFn)`	在 UI 线程执行
工具	`runOnJS(normalFn)`	回调 JS 线程

场景 → 方案映射

场景	推荐方案
点击后平滑移动	`timing` + `Easing`
手势松开回弹	`spring`
手势松开惯性滑动	`decay` + `velocity`
先移动再弹回	`sequence(timing, spring)`
循环脉动效果	`repeat(timing, -1, true)`
延迟后开始动画	`delay(ms, timing/spring)`

场景	推荐技能	说明
手势组件	`skyline-components`	pan/tap/long-press 手势处理
渲染引擎概览	`skyline-overview`	Skyline 配置和迁移
样式开发	`skyline-wxss`	WXSS 支持与差异
路由转场	`skyline-route`	自定义路由动画

References 目录结构

references/
├── animation/
│   ├── combine-animation.md
│   ├── easing.md
│   └── timing-spring-decay.md
├── base/
│   ├── scroll-view-context.md
│   └── shared-derived.md
├── core/
│   └── worklet-overview.md
└── tool/
    └── thread-communication.md

FAQ

What does the skyline-worklet skill do?

How do I install skyline-worklet?

Run npx skills add https://github.com/wechat-miniprogram/skyline-skills --skill skyline-worklet in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/skyline-worklet/ (personal) or .claude/skills/skyline-worklet/ (project).

Which AI agents can use skyline-worklet?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is skyline-worklet safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains skyline-worklet?

It is published by wechat-miniprogram in wechat-miniprogram/skyline-skills. It has 1,042 recorded installs.