iOS组件化 - subspec子库的制作

关于组件化前几篇文章请查看这里
iOS组件化（上篇）- 拆分基础组件
 iOS组件化（中篇）-拆分业务组件
 iOS组件化（下篇）-加载XIB、图片资源

我们创建了一个基础组件库FFBaseKit，假如它里面包含了Category分类、Tool工具库、APIs网络库三个功能，目录结构如下图所示。

image.png

此时，我们在项目里pod FFBaseKit基础库时，需要把它里面包含的三个功能都pod下来。有时候，我们可能仅仅只用到了其中一个功能，但是又不想全部都pod下来，那么此时就涉及到子库的制作。

最初，我们的podspec索引文件是这样的

#
# Be sure to run `pod lib lint FFBaseKit.podspec' to ensure this is a
# valid spec before submitting.
#
# Any lines starting with a # are optional, but their use is encouraged
# To learn more about a Podspec see https://guides.cocoapods.org/syntax/podspec.html
#

Pod::Spec.new do |s|
  s.name             = 'FFBaseKit'
  s.version          = '1'
  s.summary          = 'A short description of FFBaseKit.'

# This description is used to generate tags and improve search results.
#   * Think: What does it do? Why did you write it? What is the focus?
#   * Try to keep it short, snappy and to the point.
#   * Write the description between the DESC delimiters below.
#   * Finally, don't worry about the indent, CocoaPods strips it!

  s.description      = <<-DESC
TODO: Add long description of the pod here.
                       DESC

  s.homepage         = 'https://github.com/FFComponent/FFBaseKit'
  # s.screenshots     = 'www.example.com/screenshots_1', 'www.example.com/screenshots_2'
  s.license          = { :type => 'MIT', :file => 'LICENSE' }
  s.author           = { 'JiaJung' => 'jiajung@aliyun.com' }
  s.source           = { :git => 'https://github.com/FFComponent/FFBaseKit.git', :tag => s.version.to_s }
  # s.social_media_url = 'https://twitter.com/<TWITTER_USERNAME>'

  s.ios.deployment_target = '8.0'

  s.source_files = 'FFBaseKit/Classes/**/*'
  
  # s.resource_bundles = {
  #   'FFBaseKit' => ['FFBaseKit/Assets/*.png']
  # }

  # s.public_header_files = 'Pod/Classes/**/*.h'
  # s.frameworks = 'UIKit', 'MapKit'
    s.dependency 'AFNetworking'
    s.dependency 'FMDB'
    s.dependency 'MBProgressHUD'

end

接着，我们需要修改podspec文件，因为要设置subspec子库，所以需要注释掉之前的 s.source_files 和原来的依赖库, 然后设置子库的subspec 和子库依赖库

# s.source_files = 'FFBaseKit/Classes/**/*'
# s.dependency 'AFNetworking'
# s.dependency 'FMDB'
# s.dependency 'MBProgressHUD'

    s.subspec 'Category' do |category|
        category.source_files = 'FFBaseKit/Classes/Category/**/*'
    end

    s.subspec 'Tools' do |tools|
        tools.source_files = 'FFBaseKit/Classes/Tools/**/*'
        tools.dependency 'MBProgressHUD'
    end

    s.subspec 'APIs' do |apis|
        apis.source_files = 'FFBaseKit/Classes/APIs/**/*'
        apis.dependency 'AFNetworking'
        apis.dependency 'FMDB'
    end

s.subspec后面是我们文件目录对应名称
do后面是起的一个别名
别名.source_files是文件路径 (注意路径别写错)
别名. dependency后面是子库的依赖库

接着验证podspec文件通过后 pod repo push命令提交索引文件，如果不知道怎么提交请参看我之前的这篇文章。

然后就可以回到FlowerField_Component项目
中通过下面几种方式使用pod库了

pod 'FFBaseKit' 引入pod库中所有模块
pod 'FFBaseKit/Category' 只引入Category模块
pod 'FFBaseKit', :subspecs => ['Category', 'Tools']

修改FlowerField_Component项目的podspec文件：

source 'https://github.com/CocoaPods/Specs.git'
source 'https://github.com/FFComponent/FFSpecs.git'

use_frameworks!
platform :ios, '8.0' 
target ‘FlowerField’ do 

pod 'MBProgressHUD'
pod 'AFNetworking'
pod 'Masonry'
pod 'YYWebImage'
pod 'FMDB'
pod 'ReactiveCocoa', '~> 2.5'
pod 'FFBaseKit/Category'  //刚才设置好的库

end

pod install之后别忘了删除FlowerField_Component项目项目里Other下的category文件，不然会报重复冲突的

pod之后发现我们的FFBaseKit下就只有Category一个功能模块了

image.png

如果想pod APIs 或者 Tools模块功能，需要注释掉原来podspec文件下的pod，并删除Other下对应的文件夹即可

#pod 'MBProgressHUD'
#pod 'AFNetworking'
#pod 'FMDB'

iOS组件化 - subspec子库的制作

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