如何将CocoaPods与多个Framework子项目一起使用

问题描述

首先，我打开了use_framework！在Podfile中。

First of all, I've turned on use_framework! in Podfile.

假设主项目是MAIN_APP，两个子项目是FRAMEWORK_A和FRAMEWORK_B。

Assume the main project is MAIN_APP, and two subprojects are FRAMEWORK_A and FRAMEWORK_B.

MAIN_APP要求FRAMEWORK_A和FRAMEWORK_B以及FRAMEWORK_B也需要FRAMEWORK_A。

MAIN_APP requires FRAMEWORK_A and FRAMEWORK_B, and FRAMEWORK_B requires FRAMEWORK_A as well.

所有项目/目标都使用CocoaPod来管理第三方库。

All projects/targets are using CocoaPods to manage third party libraries.

目前，我的Podfile如下所示：

For now, my Podfile looks like:

target :MAIN_APP do
    project 'MAIN_APP'
    pod 'PodA'
end

target :FRAMEWORK_A do
    project 'FRAMEWORK_A'
    pod 'PodB'
end

target :FRAMEWORK_B do
    project 'FRAMEWORK_B'
    pod 'PodC'
end

我手动添加了FRAMEWORK_A以构建FRAMEWORK_B的设置，并使用FRAMEWORK_A和FRAMEWORK_B来构建MAIN_APP的设置。

I manually added FRAMEWORK_A to build settings of FRAMEWORK_B, and both FRAMEWORK_A and FRAMEWORK_B to build settings of MAIN_APP.

所有代码编译良好，但在运行时MAIN_APP崩溃，因为它无法加载PodB的框架。

All code compiles well, but when running the MAIN_APP crashes because it cannot load Framework of PodB.

我知道我也可以手动将PodB添加到MAIN_APP和FRAMEWORK_B，但是可以在Podfile中定义这种目标依赖吗？

I know I can manually add PodB to MAIN_APP and FRAMEWORK_B as well, but is it possible to define this kind of target dependency in Podfile?

Btw，当时pod install ，我收到警告：

Btw, when pod install, I got the warning:

如果此项目用于框架开发，则可以忽略此消息。否则，将目标添加到嵌入这些框架的Podfile中以使此消息消失（例如测试目标）。

If this project is for doing framework development, you can ignore this message. Otherwise, add a target to the Podfile that embeds these frameworks to make this message go away (e.g. a test target).

作为我知道，我可以使用嵌套目标作为主机目标，如：

As I know, I can use nested target for host targets like:

target :FRAMEWORK_A
    target :MAIN_APP
    end
end

因此CocoaPods将设置MAIN_APP以使用FRAMEWORK_A并从FRAMEWORK_A继承pod依赖项。但似乎我不能用多个依赖项来做到这一点：

So CocoaPods will setup MAIN_APP to use FRAMEWORK_A and inherit pod dependencies from FRAMEWORK_A. But seems I cannot do it with multiple dependencies like:

target :FRAMEWORK_A
    target :MAIN_APP
    end
end
target :FRAMEWORK_B
    target :MAIN_APP
    end
end

因为target：MAIN_APP不能被声明两次。

Because target :MAIN_APP cannot be declared twice.

是否有更好的解决方案，而不是将pod依赖项定义为Podfile中的函数并包含在所有目标？

Is there any better solutions instead of defining pod dependencies as a function in Podfile and include in all target?

推荐答案

这是一个很好的问题，我也遇到过类似情况。这是我的PodFile：

This is a great question and I've struggled with a similar situation. This is my PodFile:

platform :ios, '8.0'

workspace 'mygreatapp.xcworkspace'

project 'app/MyGreatApp/MyGreatApp.xcodeproj'
project 'platform/MyGreatFramework/MyGreatFramework.xcodeproj'

abstract_target 'This can say whatever you want' do

    target 'MyGreatApp' do
        project 'app/MyGreatApp/MyGreatApp.xcodeproj'
        pod 'AFNetworking', '~> 2.6.0'
        pod 'PromiseKit', '~> 1.5'
        pod 'PromiseKit/Join'
        pod 'KVOController', '~> 1.0'
        pod 'FLAnimatedImage', '~> 1.0'
        pod 'Crashlytics', '~> 3.3'
        pod 'SSZipArchive'
    end

    target 'MyGreatAppTests' do
        project 'app/MyGreatApp/MyGreatApp.xcodeproj'
        pod 'OCMock', '~> 3.1'
    end

    target 'MyGreatFramework' do
        project 'platform/MyGreatFramework/MyGreatFramework.xcodeproj'
        pod 'SSZipArchive'
    end

    target 'MyGreatFrameworkTests' do
        project 'platform/MyGreatFramework/MyGreatFramework.xcodeproj'
        pod 'OCMock', '~> 3.1'
    end

    post_install do |installer|
      installer.pods_project.targets.each do |target|
        target.build_configurations.each do |config|
          config.build_settings['ENABLE_BITCODE'] = 'NO'
        end
      end
    end
end

正如您所看到的，我没有使用框架，而是使用 abstract_target 将它们组合在一起。我希望这些依赖在CocoaPods中更容易实现。我知道这并没有真正回答你的问题，但它可能会有所帮助。

As you can see I'm not using frameworks and I use an abstract_target to group it all together. I wish these kinds of dependencies were easier to do in CocoaPods. I know this doesn't really answer your question but it might be helpful nonetheless.

这篇关于如何将CocoaPods与多个Framework子项目一起使用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！