为 CocoaPods 的 pod 设置部署目标

Question

我使用 CocoaPods 来管理项目中的依赖项。我写了 Podfile：

target 'MyApp' do
  platform :ios, '8.0'
  # Uncomment this line if you're using Swift or would like to use dynamic frameworks
  #use_frameworks!

  # Pods for MyApp
  pod 'KeepLayout', :git => 'https://github.com/iMartinKiss/KeepLayout', :tag => 'v1.6.0'
  pod 'EasyMapping'

  target 'MyAppTests' do
    inherit! :search_paths
    # Pods for testing
  end

  target 'MyAppUITests' do
    inherit! :search_paths
    # Pods for testing
  end

end

此文件适用于 CocoaPods 0.x 但我在更新到 CocoaPods 1.0 后无法编译项目。在我运行

pod update

我无法编译我的项目，出现错误：

/Users/<...>/Pods/KeepLayout/Sources/KeepAttribute.m:195:1: Cannot synthesize weak property because the current deployment target does not support weak references

我看到每个库都是用不同的部署目标构建的。例如 KeepLayout 是用 4.3 部署目标构建的。

我如何确定每个 pod 依赖项的构建目标？

Answer 1

虽然 Cocoa 的某些开发版本Pods（以及 1.0 之前的版本）可能已将项目的部署目标传播到 pods，但这是 no longer the case in 1.0. To work around this, the current developer recommends使用 post-安装挂钩。

这是一种蛮力方法，可以为生成的 Pods 项目中的每个 pod 强制执行硬编码部署目标。将此粘贴到 Podfile:

的 end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '9.2'
    end
  end
end

Answer 2

因为 Podfile 使用像 platform :ios, '9.0' 这样的指令来为 Pods/Pods.xcodeproj 项目指定“iOS 部署目标”（又名 IPHONEOS_DEPLOYMENT_TARGET），您只需要从每个构建目标中删除 部署目标 信息。
通过将此添加到您的 Podfile

platform :ios, '9.0' # set IPHONEOS_DEPLOYMENT_TARGET for the pods project
post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
      config.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
    end
  end
end

受到 github post 和 Alex Nauda 的回答的启发。

Answer 3

1) 搜索 IPHONEOS_DEPLOYMENT_TARGET

2) 更改 iOS 部署目标

Answer 4

将目标更改为“11.0”

platform :ios, '11.0'

Answer 5

虽然 Alex Nauda 接受的答案很好，但让 Pods 从应用程序继承目标可能是更好的解决方案。

app_ios_deployment_target = Gem::Version.new('9.2') # Change to your current deployment target

platform :ios, app_ios_deployment_target.version

# Let Pods targets inherit deployment target from the app
# This solution is suggested here: https://github.com/CocoaPods/CocoaPods/issues/4859
post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |configuration|
      pod_ios_deployment_target = Gem::Version.new(configuration.build_settings['IPHONEOS_DEPLOYMENT_TARGET'])
      if pod_ios_deployment_target <= app_ios_deployment_target
        configuration.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
      end
    end
  end
end

Answer 6

这里是为 pod 目标永久设置 部署目标的方法。

为 CocoaPods 的 pod 设置部署目标

Set deployment target for CocoaPods's pod

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