koshachy
744 lines
25 KiB
Markdown
744 lines
25 KiB
Markdown
# CocoaPods integration
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Kotlin/Native provides integration with the [CocoaPods dependency manager](https://cocoapods.org/).
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You can add dependencies on Pod libraries as well as use a multiplatform project with
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native targets as a CocoaPods dependency (Kotlin Pod).
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You can manage Pod dependencies directly in IntelliJ IDEA and enjoy all the additional features such as code highlighting
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and completion. You can build the whole Kotlin project with Gradle and not ever have to switch to Xcode.
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Use Xcode only when you need to write Swift/Objective-C code or run your application on a simulator or device.
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To work correctly with Xcode, you should [update your Podfile](#update-podfile-for-xcode).
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Depending on your project and purposes, you can add dependencies between [a Kotlin project and a Pod library](#add-dependencies-on-pod-libraries) as well as [a Kotlin Pod and an Xcode project](#use-a-kotlin-gradle-project-as-a-cocoapods-dependency).
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>You can also add dependencies between a Kotlin Pod and multiple Xcode projects. However, in this case you need to add a
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>dependency by calling `pod install` manually for each Xcode project. In other cases, it's done automatically.
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{:.note}
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## Install the CocoaPods dependency manager and plugin
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1. Install the [CocoaPods dependency manager](https://cocoapods.org/).
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<div class="sample" markdown="1" theme="idea" mode="ruby" data-highlight-only>
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```ruby
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$ sudo gem install cocoapods
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```
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</div>
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2. Install the [`cocoapods-generate`](https://github.com/square/cocoapods-generate) plugin.
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<div class="sample" markdown="1" theme="idea" mode="ruby" data-highlight-only>
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```ruby
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$ sudo gem install cocoapods-generate
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```
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</div>
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3. In `build.gradle.kts` (or `build.gradle`) of your IDEA project, apply the CocoaPods plugin as well as the Kotlin
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Multiplatform plugin.
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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plugins {
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kotlin("multiplatform") version "{{ site.data.releases.latest.version }}"
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kotlin("native.cocoapods") version "{{ site.data.releases.latest.version }}"
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}
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```
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</div>
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4. Configure `summary`, `homepage`, and `frameworkName`of the `Podspec` file in the `cocoapods` block.
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`version` is a version of the Gradle project.
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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plugins {
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kotlin("multiplatform") version "{{ site.data.releases.latest.version }}"
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kotlin("native.cocoapods") version "{{ site.data.releases.latest.version }}"
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}
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// CocoaPods requires the podspec to have a version.
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version = "1.0"
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kotlin {
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cocoapods {
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// Configure fields required by CocoaPods.
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summary = "Some description for a Kotlin/Native module"
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homepage = "Link to a Kotlin/Native module homepage"
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// You can change the name of the produced framework.
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// By default, it is the name of the Gradle project.
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frameworkName = "my_framework"
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}
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}
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```
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</div>
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5. Re-import the project.
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6. Generate the [Gradle wrapper](https://docs.gradle.org/current/userguide/gradle_wrapper.html) to avoid compatibility issues during an Xcode build.
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When applied, the CocoaPods plugin does the following:
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* Adds both `debug` and `release` frameworks as output binaries for all macOS, iOS, tvOS, and watchOS targets.
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* Creates a `podspec` task which generates a [Podspec](https://guides.cocoapods.org/syntax/podspec.html)
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file for the project.
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The `Podspec` file includes a path to an output framework and script phases that automate building this framework during
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the build process of an Xcode project.
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## Add dependencies on Pod libraries
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To add dependencies between a Kotlin project and a Pod library, you should [complete the initial configuration](#install-the-cocoapods-dependency-manager-and-plugin).
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This allows you to add dependencies on the following types of Pod libraries:
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* [A Pod library from the CocoaPods repository](#add-a-dependency-on-a-pod-library-from-the-cocoapods-repository)
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* [A Pod library stored locally](#add-a-dependency-on-a-pod-library-stored-locally)
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* [A Pod library from a Git repository](#add-a-dependency-on-a-pod-library-from-the-git-repository)
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* [A Pod library from an archive](#add-a-dependency-on-a-pod-library-from-an-archive)
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* [A Pod library from a custom Podspec repository](#add-a-dependency-on-a-pod-library-from-a-custom-podspec-repository)
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* [A Pod library with custom cinterop options](#add-a-dependency-on-a-pod-library-with-custom-cinterop-options)
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* [A static Pod library](#add-a-dependency-on-a-static-pod-library)
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A Kotlin project requires the `pod()` function call in `build.gradle.kts` (`build.gradle`) for adding a Pod dependency. Each dependency requires its own separate function call.
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You can specify the parameters for the dependency in the configuration block of the function.
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When you add a new dependency and re-import the project in IntelliJ IDEA, the new dependency will be added automatically.
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No additional steps are required.
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To use your Kotlin project with Xcode, you should [make changes in your project Podfile](#update-podfile-for-xcode).
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### Add a dependency on a Pod library from the CocoaPods repository
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You can add dependencies on a Pod library from the CocoaPods repository with `pod()` to `build.gradle.kts`
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(`build.gradle`) of your project:
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1. Specify the name of a Pod library in the `pod()` function. In the configuration block you can specify the version of the library using the `version` parameter. To use the latest version of the library, you can just omit this parameter all-together.
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> You can add dependencies on subspecs.
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{:.note}
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2. Specify the minimum deployment target version for the Pod library.
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> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
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{:.note}
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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kotlin {
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ios()
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cocoapods {
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ios.deploymentTarget = "13.5"
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summary = "CocoaPods test library"
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homepage = "https://github.com/JetBrains/kotlin"
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pod("AFNetworking") {
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version = "~> 4.0.1"
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}
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}
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}
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```
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</div>
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3. Re-import the project.
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To use these dependencies from the Kotlin code, import the packages `cocoapods.<library-name>`.
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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import cocoapods.AFNetworking.*
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```
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</div>
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You can find a sample project [here](https://github.com/Kotlin/kotlin-with-cocoapods-sample).
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### Add a dependency on a Pod library stored locally
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You can add a dependency on a Pod library stored locally with `pod()` to `build.gradle.kts` (`build.gradle`) of your project:
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1. Specify the name of a Pod library in the `pod()` function. In the configuration block specify the path to the local Pod library: use the `path()` function in the `source` parameter value.
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> You can add local dependencies on subspecs as well.
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> The `cocoapods` block can include dependencies to Pods stored locally and Pods from the CocoaPods repository at
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> the same time.
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{:.note}
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2. Specify the minimum deployment target version for the Pod library.
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> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
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{:.note}
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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kotlin {
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ios()
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cocoapods {
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summary = "CocoaPods test library"
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homepage = "https://github.com/JetBrains/kotlin"
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ios.deploymentTarget = "13.5"
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pod("pod_dependency") {
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version = "1.0"
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source = path(project.file("../pod_dependency/pod_dependency.podspec"))
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}
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pod("subspec_dependency/Core") {
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version = "1.0"
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source = path(project.file("../subspec_dependency/subspec_dependency.podspec"))
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}
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pod("AFNetworking") {
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version = "~> 4.0.1"
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}
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}
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}
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```
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</div>
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> You can also specify the version of the library using `version` parameter in the configuration block.
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> To use the latest version of the library, omit the parameter.
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{:.note}
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3. Re-import the project.
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To use these dependencies from the Kotlin code, import the packages `cocoapods.<library-name>`.
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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import cocoapods.pod_dependency.*
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import cocoapods.subspec_dependency.*
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import cocoapods.AFNetworking.*
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```
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</div>
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You can find a sample project [here](https://github.com/Kotlin/kotlin-with-cocoapods-sample).
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### Add a dependency on a Pod library from the Git repository
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You can add dependencies on a Pod library from a custom Git repository with `pod()` to `build.gradle.kts`
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(`build.gradle`) of your project:
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1. Specify the name of a Pod library in the `pod()` function.
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In the configuration block specify the path to the git repository: use the `git()` function in the `source` parameter value.
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Additionally, you can specify the following parameters in the block after `git()`:
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* `commit` – to use a specific commit from the repository
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* `tag` – to use a specific tag from the repository
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* `branch` – to use a specific branch from the repository
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The `git()` function prioritizes passed parameters in the following order: `commit`, `tag`, `branch`.
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If you don't specify a parameter, the Kotlin plugin uses `HEAD` from the `master` branch.
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> You can combine `branch`, `commit`, and `tag` parameters to get the specific version of a Pod.
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{:.note}
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2. Specify the minimum deployment target version for the Pod library.
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> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
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{:.note}
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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kotlin {
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ios()
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cocoapods {
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summary = "CocoaPods test library"
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homepage = "https://github.com/JetBrains/kotlin"
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ios.deploymentTarget = "13.5"
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pod("AFNetworking") {
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source = git("https://github.com/AFNetworking/AFNetworking") {
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tag = "4.0.0"
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}
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}
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pod("JSONModel") {
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source = git("https://github.com/jsonmodel/jsonmodel.git") {
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branch = "key-mapper-class"
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}
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}
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pod("CocoaLumberjack") {
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source = git("https://github.com/CocoaLumberjack/CocoaLumberjack.git") {
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commit = "3e7f595e3a459c39b917aacf9856cd2a48c4dbf3"
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}
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}
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}
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}
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```
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</div>
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3. Re-import the project.
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> To work correctly with Xcode, you should specify the path to the Podspec in your Podfile.
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> For example:
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>
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> <div class="sample" markdown="1" theme="idea" data-highlight-only>
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>
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> ```ruby
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> target 'ios-app' do
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> # ... other pod depedencies ...
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> pod 'JSONModel', :path => '../cocoapods/kotlin-with-cocoapods-sample/kotlin-library/build/cocoapods/externalSources/git/JSONModel'
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> end
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> ```
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>
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> </div>
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>
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{:.note}
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To use these dependencies from the Kotlin code, import the packages `cocoapods.<library-name>`.
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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import cocoapods.AFNetworking.*
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import cocoapods.JSONModel.*
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import cocoapods.CocoaLumberjack.*
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```
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</div>
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You can find a sample project [here](https://github.com/Kotlin/kotlin-with-cocoapods-sample).
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### Add a dependency on a Pod library from an archive
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You can add dependencies on a Pod library from `zip`, `tar`, or `jar` archive with `pod()` to `build.gradle.kts`
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(`build.gradle`) of your project:
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1. Specify the name of a Pod library in the `pod()` function.
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In the configuration block specify the path to the archive: use the `url()` function with an arbitrary HTTP address in the `source` parameter value.
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Additionally, you can specify the boolean `flatten` parameter as a second argument for the `url()` function
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This parameter indicates that all the Pod files are located in the root directory of the archive.
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2. Specify the minimum deployment target version for the Pod library.
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> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
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{:.note}
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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kotlin {
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ios()
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cocoapods {
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summary = "CocoaPods test library"
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homepage = "https://github.com/JetBrains/kotlin"
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ios.deploymentTarget = "13.5"
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pod("pod_dependency") {
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source = url("https://github.com/Kotlin/kotlin-with-cocoapods-sample/raw/cocoapods-zip/cocoapodSourcesZip.zip", flatten = true)
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}
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}
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}
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```
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</div>
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3. Re-import the project.
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> To work correctly with Xcode, you should specify the path to the Podspec in your Podfile.
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> For example:
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>
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> <div class="sample" markdown="1" theme="idea" data-highlight-only>
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>
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> ```ruby
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> target 'ios-app' do
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> # ... other pod depedencies ...
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> pod 'podspecWithFilesExample', :path => '../cocoapods/kotlin-with-cocoapods-sample/pod_dependency'
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> end
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> ```
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>
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> </div>
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>
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{:.note}
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To use these dependencies from the Kotlin code, import the packages `cocoapods.<library-name>`.
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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import cocoapods.pod_dependency.*
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```
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</div>
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You can find a sample project [here](https://github.com/Kotlin/kotlin-with-cocoapods-sample).
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### Add a dependency on a Pod library from a custom Podspec repository
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You can add dependencies on a Pod library from a custom Podspec repository with `pod()` and `specRepos` to `build.gradle.kts`
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(`build.gradle`) of your project:
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1. Specify the HTTP address to the custom Podspec repository using the `url()` inside the `specRepos` block.
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2. Specify the name of a Pod library in the `pod()` function.
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3. Specify the minimum deployment target version for the Pod library.
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> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
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{:.note}
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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kotlin {
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ios()
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cocoapods {
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summary = "CocoaPods test library"
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homepage = "https://github.com/JetBrains/kotlin"
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ios.deploymentTarget = "13.5"
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specRepos {
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url("https://github.com/Kotlin/kotlin-cocoapods-spec.git")
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}
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pod("example")
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}
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}
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```
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</div>
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4. Re-import the project.
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> To work correctly with Xcode, you should specify the location of specs at the beginning of your Podfile.
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> For example, `source 'https://github.com/Kotlin/kotlin-cocoapods-spec.git'`
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>
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> You should also specify the path to the Podspec in your Podfile.
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> For example:
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>
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> <div class="sample" markdown="1" theme="idea" data-highlight-only>
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>
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> ```ruby
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> target 'ios-app' do
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> # ... other pod depedencies ...
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> pod 'podspecWithFilesExample', :path => '../cocoapods/kotlin-with-cocoapods-sample/pod_dependency'
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> end
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> ```
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>
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> </div>
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>
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{:.note}
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To use these dependencies from the Kotlin code, import the packages `cocoapods.<library-name>`.
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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import cocoapods.example.*
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```
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</div>
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You can find a sample project [here](https://github.com/Kotlin/kotlin-with-cocoapods-sample).
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### Add a dependency on a Pod library with custom cinterop options
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You can add dependencies on a Pod library with custom cinterop options with `pod()` to `build.gradle.kts`
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(`build.gradle`) of your project:
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1. Specify the name of a Pod library in the `pod()` function.
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In the configuration block specify the cinterop options:
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* `extraOpts` – to specify the list of options for a Pod library. For example, specific flags: `extraOpts = listOf("-compiler-option")`
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* `packageName` – to specify the package name. If you specify this, you can import the library using the package name: `import <packageName>`.
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2. Specify the minimum deployment target version for the Pod library.
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> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
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{:.note}
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<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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kotlin {
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ios()
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cocoapods {
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summary = "CocoaPods test library"
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homepage = "https://github.com/JetBrains/kotlin"
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ios.deploymentTarget = "13.5"
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useLibraries()
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pod("YandexMapKit") {
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packageName = "YandexMK"
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}
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}
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}
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```
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</div>
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3. Re-import the project.
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To use these dependencies from the Kotlin code, import the packages `cocoapods.<library-name>`.
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|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
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```kotlin
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import cocoapods.YandexMapKit.*
|
||
```
|
||
|
||
</div>
|
||
|
||
If you use the `packageName` parameter, you can import the library using the package name: `import <packageName>`:
|
||
|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
|
||
|
||
```kotlin
|
||
import YandexMK.YMKPoint
|
||
import YandexMK.YMKDistance
|
||
```
|
||
|
||
</div>
|
||
|
||
### Add a dependency on a static Pod library
|
||
|
||
You can add dependencies on a static Pod library with `pod()` and `useLibraries()` to `build.gradle.kts`
|
||
(`build.gradle`) of your project:
|
||
|
||
1. Specify the name of the library using the `pod()` function.
|
||
|
||
2. Call the `useLibraries()` function: it enables a special flag for static libraries.
|
||
|
||
3. Specify the minimum deployment target version for the Pod library.
|
||
|
||
> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
|
||
{:.note}
|
||
|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
|
||
|
||
```kotlin
|
||
kotlin {
|
||
ios()
|
||
|
||
cocoapods {
|
||
summary = "CocoaPods test library"
|
||
homepage = "https://github.com/JetBrains/kotlin"
|
||
|
||
ios.deploymentTarget = "13.5"
|
||
|
||
pod("YandexMapKit") {
|
||
version = "~> 3.2"
|
||
}
|
||
useLibraries()
|
||
|
||
}
|
||
}
|
||
```
|
||
|
||
</div>
|
||
|
||
|
||
4. Re-import the project.
|
||
|
||
To use these dependencies from the Kotlin code, import the packages `cocoapods.<library-name>`.
|
||
|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
|
||
|
||
```kotlin
|
||
import cocoapods.YandexMapKit.*
|
||
```
|
||
|
||
</div>
|
||
|
||
### Update Podfile for Xcode
|
||
|
||
If you want to import your Kotlin project in an Xcode project, you’ll need to make some changes to your Podfile for it to work correctly:
|
||
|
||
* If your project has any Git, HTTP, or custom Podspec repository dependencies, you should also specify the path to the Podspec in the Podfile.
|
||
|
||
For example, if you add a dependency on `podspecWithFilesExample`, declare the path to the Podspec in the Podfile:
|
||
|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
|
||
|
||
```ruby
|
||
target 'ios-app' do
|
||
# ... other depedencies ...
|
||
pod 'podspecWithFilesExample', :path => 'cocoapods/externalSources/url/podspecWithFilesExample'
|
||
end
|
||
```
|
||
|
||
</div>
|
||
|
||
The `:path` should contain the filepath to the Pod.
|
||
|
||
* When you add a library from the custom Podspec repository, you should also specify the [location](https://guides.cocoapods.org/syntax/podfile.html#source) of specs at the beginning of your Podfile:
|
||
|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
|
||
|
||
```ruby
|
||
source 'https://github.com/Kotlin/kotlin-cocoapods-spec.git'
|
||
|
||
target 'kotlin-cocoapods-xcproj' do
|
||
# ... other depedencies ...
|
||
pod 'example'
|
||
end
|
||
```
|
||
|
||
</div>
|
||
|
||
> Re-import the project after making changes in Podfile.
|
||
{:.note}
|
||
|
||
If you don't make these changes to the Podfile, the `podInstall` task will fail and the CocoaPods plugin will show an error message in the log.
|
||
|
||
Check out the `withXcproject` branch of the [sample project](https://github.com/Kotlin/kotlin-with-cocoapods-sample), which contains an example of Xcode integration with an existing Xcode project named `kotlin-cocoapods-xcproj`.
|
||
|
||
## Use a Kotlin Gradle project as a CocoaPods dependency
|
||
|
||
You can use a Kotlin Multiplatform project with native targets as a CocoaPods dependency (Kotlin Pod). You can include such a dependency
|
||
in the Podfile of the Xcode project by its name and path to the project directory containing the generated Podspec.
|
||
This dependency will be automatically built (and rebuilt) along with this project.
|
||
Such an approach simplifies importing to Xcode by removing a need to write the corresponding Gradle tasks and Xcode build steps manually.
|
||
|
||
You can add dependencies between:
|
||
* [A Kotlin Pod and an Xcode project with one target](#add-a-dependency-between-a-kotlin-pod-and-xcode-project-with-one-target)
|
||
* [A Kotlin Pod and an Xcode project with several targets](#add-a-dependency-between-a-kotlin-pod-with-an-xcode-project-with-several-targets)
|
||
|
||
> To correctly import the dependencies into the Kotlin/Native module, the
|
||
`Podfile` must contain either [`use_modular_headers!`](https://guides.cocoapods.org/syntax/podfile.html#use_modular_headers_bang)
|
||
or [`use_frameworks!`](https://guides.cocoapods.org/syntax/podfile.html#use_frameworks_bang)
|
||
directive.
|
||
{:.note}
|
||
|
||
### Add a dependency between a Kotlin Pod and Xcode project with one target
|
||
|
||
1. Create an Xcode project with a `Podfile` if you haven’t done so yet.
|
||
2. Add the path to your Xcode project `Podfile` with `podfile = project.file(..)` to `build.gradle.kts` (`build.gradle`)
|
||
of your Kotlin project.
|
||
This step helps synchronize your Xcode project with Kotlin Pod dependencies by calling `pod install` for your `Podfile`.
|
||
3. Specify the minimum deployment target version for the Pod library.
|
||
> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
|
||
{:.note}
|
||
|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
|
||
|
||
```kotlin
|
||
kotlin {
|
||
ios()
|
||
|
||
cocoapods {
|
||
summary = "CocoaPods test library"
|
||
homepage = "https://github.com/JetBrains/kotlin"
|
||
ios.deploymentTarget = "13.5"
|
||
pod("AFNetworking") {
|
||
version = "~> 4.0.0"
|
||
}
|
||
podfile = project.file("../ios-app/Podfile")
|
||
}
|
||
}
|
||
```
|
||
|
||
</div>
|
||
|
||
4. Add the name and path of the Kotlin Pod you want to include in the Xcode project to `Podfile`.
|
||
|
||
<div class="sample" markdown="1" theme="idea" mode="ruby" data-highlight-only>
|
||
|
||
```ruby
|
||
use_frameworks!
|
||
|
||
platform :ios, '13.5'
|
||
|
||
target 'ios-app' do
|
||
pod 'kotlin_library', :path => '../kotlin-library'
|
||
end
|
||
```
|
||
|
||
</div>
|
||
|
||
5. Re-import the project.
|
||
|
||
### Add a dependency between a Kotlin Pod with an Xcode project with several targets
|
||
|
||
1. Create an Xcode project with a `Podfile` if you haven’t done so yet.
|
||
2. Add the path to your Xcode project `Podfile` with `podfile = project.file(..)` to `build.gradle.kts` (`build.gradle`) of
|
||
your Kotlin project.
|
||
This step helps synchronize your Xcode project with Kotlin Pod dependencies by calling `pod install` for your `Podfile`.
|
||
3. Add dependencies to the Pod libraries that you want to use in your project with `pod()`.
|
||
4. For each target, specify the minimum deployment target version for the Pod library.
|
||
> If you don't specify the minimum deployment target version and a dependency Pod requires a higher deployment target, you will get an error.
|
||
{:.note}
|
||
|
||
<div class="sample" markdown="1" theme="idea" data-highlight-only>
|
||
|
||
```kotlin
|
||
kotlin {
|
||
ios()
|
||
tvos()
|
||
|
||
cocoapods {
|
||
summary = "CocoaPods test library"
|
||
homepage = "https://github.com/JetBrains/kotlin"
|
||
ios.deploymentTarget = "13.5"
|
||
tvos.deploymentTarget = "13.4"
|
||
|
||
pod("AFNetworking") {
|
||
version = "~> 4.0.0"
|
||
}
|
||
podfile = project.file("../severalTargetsXcodeProject/Podfile") // specify the path to Podfile
|
||
}
|
||
}
|
||
```
|
||
|
||
</div>
|
||
|
||
5. Add the name and path of the Kotlin Pod you want to include in the Xcode project to the `Podfile`.
|
||
|
||
<div class="sample" markdown="1" theme="idea" mode="ruby" data-highlight-only>
|
||
|
||
```ruby
|
||
target 'iosApp' do
|
||
use_frameworks!
|
||
platform :ios, '13.5'
|
||
# Pods for iosApp
|
||
pod 'kotlin_library', :path => '../kotlin-library'
|
||
end
|
||
|
||
target 'TVosApp' do
|
||
use_frameworks!
|
||
platform :tvos, '13.4'
|
||
|
||
# Pods for TVosApp
|
||
pod 'kotlin_library', :path => '../kotlin-library'
|
||
end
|
||
```
|
||
|
||
</div>
|
||
|
||
6. Re-import the project.
|
||
|
||
You can find a sample project [here](https://github.com/Kotlin/multitarget-xcode-with-kotlin-cocoapods-sample).
|