# Eul - SwiftUI 简明教程 \| 工具书

> Interactive SwiftUI tutorial and reference tool for developers. (iPhone/iPad app by 科 曾.)

- Source: https://appshunter.io/ios/app/eul-swiftui/id1541991958 (this page in markdown: same URL + `.md`)
- Developer: [科 曾](https://appshunter.io/developer/1322330151)
- Category: Developer Tools, Reference
- Price: Free with in-app purchases
- Rating: 4.80/5 from 4 App Store ratings · 26 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.0 · 9 MB
- Languages: Chinese (Simplified, China)
- Released: 2020-12-08
- Data updated: 2026-09-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/eul-swiftui/id1541991958/reviews.md

## What is Eul?

Eul 是一款简洁、纯粹的 SwiftUI 教程 App，有以下独特之处：

1. 基于最新的 SwiftUI 构建，支持 iOS、iPadOS、macOS 多个平台，教程内容同步更新至最新的 SwiftUI。内容不仅保持最新，也非常全面细致，包括但不限于 SwiftUI、Swift、Concurrency、Combine 等。

2. 与书籍或网站的传统教程不同，Eul 率先提供了一种交互式的学习体验，读者看到的不仅是图文和代码，还能直接在苹果的设备上（iPhone、iPad、Mac）看到代码的真机运行效果。配合深入浅出的文章讲解，这有助于读者更快更好地理解和使用 SwiftUI。

示例附带的源码直接 copy 后就可以在 Xcode 中预览和运行，copy 的代码和示例背后的源码是完全一致的。

3. Eul 还提供了强大的搜索功能，它不仅是一本教程，还可以作为工具书供开发者随时查阅 SwiftUI 的相关知识及使用。

读者如有 iOS 开发经验，可直接开始学习。若是初学者，建议先去熟悉 Swift 语法。

笔者意在尽可能使用简洁明了的语言阐述 SwiftUI 的相关知识，使读者能快速掌握并在 iOS 开发中实践。读者若能从中获益，笔者深感欣慰。如有漏误之处，恳请斧正，不甚感激。

# 联系方式

Email：zzzwco@outlook.com
Twitter：zzzwco

## Key features

- Interactive SwiftUI learning
- Real-time code previews
- Covers latest SwiftUI updates
- Comprehensive reference tool
- Cross-platform support (iOS, iPadOS, macOS)
- Powerful search functionality

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro | $1.99 | one-time |


## Recent user reviews (10 of 26)

All indexed reviews: https://appshunter.io/ios/app/eul-swiftui/id1541991958/reviews.md

### 5/5 — 怎么不更新了

*2025-11-23*

作者麻烦更新一下

### 5/5 — 很方便学习，和查阅

*2025-07-17*

希望能持续更新

### 5/5 — 加油

*2025-02-21*

希望持续更新！！

### 1/5 — Sucked

*2024-10-10*

Didn’t understand anything when I tried to translate it so I deleted it

### 5/5 — 强强强的

*2024-09-28*

强

### 5/5 — 5🌟

*2024-05-05*

5 🌟

### 5/5 — 感谢

*2024-04-14*

感谢这样的学习软件，效率一下子提升上来了

### 5/5 — 升级空白页面

*2023-12-12*

无法购买升级内容

**Developer response:** 我这里看是正常的 应该是网络问题 重新试一下

### 5/5 — 对SwiftUI初学者来说相当不错的教程

*2023-10-13, version 2.5.0*

对于SwfitUI内容介绍的很详细，能快速了解如何布局以及有哪些基础组件可使用和如何对组件样式进行调整都有详细的说明

### 5/5 — 超详细!

*2023-10-13, version 2.5.0*

碰到有趣的设计可以直接抄代码 (

## Frequently asked questions about Eul

### What is Eul?

Eul is a concise SwiftUI tutorial app that provides an interactive learning experience. It allows users to see real-time code previews directly on their Apple devices, aiding in understanding and application of SwiftUI concepts.

### What topics does Eul cover?

Eul covers a comprehensive range of SwiftUI topics, including Swift, Concurrency, and Combine, keeping content updated with the latest SwiftUI advancements.

### Can I use Eul on my Mac, iPhone, and iPad?

Yes, Eul is designed to support multiple Apple platforms, including macOS, iPadOS, and iOS, ensuring a consistent learning experience across your devices.

### Is Eul suitable for beginners?

While users with iOS development experience can start immediately, beginners are advised to familiarize themselves with Swift syntax first. The app aims to explain SwiftUI knowledge in a clear and concise manner.

### How does Eul's learning experience differ from traditional tutorials?

Unlike traditional books or websites, Eul offers an interactive approach. Users can see the actual running effect of code on their devices, complementing the in-depth articles and code examples.

### Does Eul have ads?

No, Eul is ad-free, providing an uninterrupted learning and reference experience for developers.

### What is the rating of Eul?

Eul has a high rating of 4.8 stars based on 4 user reviews, indicating a positive user sentiment.

### How often is Eul updated?

The app was last updated on December 6, 2023, with version 2.5.2, suggesting regular maintenance and updates to keep the content current.

## Version history (last 5 releases)

### 2.5.2 — 2023-12-06

- 优化搜索高亮结果的显示位置

### 2.5.1 — 2023-10-23

- 修复已知问题

### 2.5.0 — 2023-10-12

本次更新主要新增了 SwiftUI 在 iOS 17、macOS 14 上的新特性。

- 图片：
  - SF Symbols 动画
  - 引用资源图片
- 动画：
  - 渐变动画（GradientAnimation）
  - animation(_:body:)
  - withAnimation(_:completionCriteria:_:completion:)
  - 相位动画：PhaseAnimator
  - 关键帧动画：KeyframeAnimator
- ScrollView：
  - 布局与行为：containerRelativeFrame、scrollTargetBehavior、scrollPosition 等
  - 转场动画：scrollTransition
- Charts：
  - 饼图（PieChart）
  - 滑动图表（ScrollChart）
  - 图表的选择
- Modal：Inspector
- Swift：《Swift 5.9 新特性》

### 2.4.0 — 2023-06-06

# 内容

- 新增：渐变文字动画示例，.animation(nil) 的使用说明（见《基础动画》）
- 新增：allowsHitTesting 的使用示例以及和 disabled 的区别
- 新增：按范围搜索（.searchscopes）的使用说明
- 新增：@EnvironmentObject 的补充说明
- 新增：ImageRenderer 的使用及示例

### 2.3.0 — 2023-04-03

# 功能
- 新增：文章/示例更新状态（默认开启，可以在设置中关闭）

# 内容
- 新增：iOS 16.4 上 SwiftUI 新特性（搜索 iOS 16.4 快速查看）
  - sheet 新增的一些列方法，增强了交互性
  - scrollBounceBehavior 方法控制滑动视图的弹性行为
- 新增：《Swift 5.8 新特性》

## Apps similar to Eul

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Swifter for SwiftUI](https://appshunter.io/ios/app/swifter-for-swiftui/id1621133381) | 3.1 (9) | Free | Developer Tools |
| [Textastic Code Editor](https://appshunter.io/ios/app/textastic-code-editor/id1049254261) | 4.7 (2,510) | Free | Developer Tools |
| [Connected - For App Developers](https://appshunter.io/ios/app/connected-for-app-developers/id6451065078) | 5.0 (1) | Free | Developer Tools |
| [做个应用 — SwiftUI 0 基础开发应用](https://appshunter.io/ios/app/swiftui-0/id1578873606) | 5.0 (1) | Free | Developer Tools |
| [Fabula for SwiftUI](https://appshunter.io/ios/app/fabula-for-swiftui/id1591155142) | 4.8 (123) | Free | Developer Tools |
| [Twine Desktop](https://appshunter.io/ios/app/twine-desktop/id6451390893) | 5.0 (1) | Free | Developer Tools |

## More apps by 科 曾

- [FontsX - Light iPhone Keyboard](https://appshunter.io/ios/app/fontsx-light-iphone-keyboard/id1519657131)
- [SnookerInfo: Stats and Tracker](https://appshunter.io/ios/app/snookerinfo-stats-and-tracker/id1544423548)

All apps by 科 曾: https://appshunter.io/developer/1322330151

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-08.*