Kotlin Multiplatform Academy · 课时

从 iOS 应用调用共享代码

导入框架并从 Swift 中调用它

从 iOS 应用调用共享代码 是 CoddyKit 上的免费 Kotlin Multiplatform Academy 课时。这是第 3 节课，共 4 节。你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。这是 Kotlin Multiplatform Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Kotlin Multiplatform Academy 课程共包含 4 节课。

本课时的部分内容尚未翻译，以英文显示。

Shared Code as a Framework

On iOS your Kotlin compiles into a framework. Swift consumes it just like any Apple library you import into a project.

Import the Framework

At the top of your Swift file you import the shared framework by its name, usually Shared. That single line unlocks every export.

import Shared

Kotlin Becomes Swift

The Kotlin compiler exposes your function through an Objective-C header. Swift then sees it as a clean, native-looking call.

Top-Level Goes in a Helper

Top-level Kotlin functions land on a generated Kt helper class. You call greet through that container from Swift.

let message = GreetingKt.greet(name: "iOS")

Named Arguments

Swift turns the Kotlin parameter into a named argument. That is why you write name: when you call into shared code.

GreetingKt.greet(name: "iOS")

Show It in SwiftUI

Drop the returned String straight into a Text view. SwiftUI renders the greeting your shared Kotlin produced. 🍎

Text(GreetingKt.greet(name: "iOS"))

Strings Map Cleanly

A Kotlin String arrives as a Swift String automatically. Simple types cross the boundary without any manual conversion.

Link the Framework

Xcode links the framework through a build phase the wizard set up. As long as that phase runs, the import resolves.

Build From Xcode

Press Run in Xcode and choose a simulator. The greeting appears, proving Swift reached all the way into your Kotlin.

When Swift Cannot See It

If the import is red, the framework likely was not rebuilt. Build the shared module so Xcode picks up the latest header.

Same Logic, New Host

iOS wrote no greeting logic either. It is purely a consumer of the exact code Android already used.

Quick Check

How does Swift access a top-level Kotlin function?

Recap

You imported the shared framework, called greet through its Kt helper with a named argument, and rendered it in SwiftUI. 🎉

常见问题解答

「从 iOS 应用调用共享代码」课时是免费的吗？

是的 — 「从 iOS 应用调用共享代码」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Kotlin Multiplatform Academy 课程的其余内容，请升级到 CoddyKit PRO。 Kotlin Multiplatform Academy 课程共包含 4 节课。

「从 iOS 应用调用共享代码」这节课中我会学到什么？

导入框架并从 Swift 中调用它你通过在浏览器中直接运行的动手代码来练习 Kotlin Multiplatform Academy，全天候 AI 导师会在你学习这节课的过程中回答你的问题。

学习 Kotlin Multiplatform Academy 需要有经验吗？

无需任何先前经验。CoddyKit 上的 Kotlin Multiplatform Academy 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。这是第 3 节课，共 4 节。

「从 iOS 应用调用共享代码」课时需要多长时间？

大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。

我能在这节 Kotlin Multiplatform Academy 课中编写并运行代码吗？

能。每节 Kotlin Multiplatform Academy 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。

此课程中的所有课时

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