本文章用到的demo的下載地址

關(guān)于組件化前幾篇文章請查看這里
iOS組件化（上篇）- 拆分基礎(chǔ)組件
iOS組件化（中篇）-拆分業(yè)務(wù)組件
iOS組件化（下篇）-加載XIB、圖片資源

我們創(chuàng)建了一個基礎(chǔ)組件庫FFBaseKit，假如它里面包含了Category分類、Tool工具庫、APIs網(wǎng)絡(luò)庫三個功能，目錄結(jié)構(gòu)如下圖所示。

image.png

此時，我們在項目里pod FFBaseKit基礎(chǔ)庫時，需要把它里面包含的三個功能都pod下來。有時候，我們可能僅僅只用到了其中一個功能，但是又不想全部都pod下來，那么此時就涉及到子庫的制作。

最初，我們的podspec索引文件是這樣的

#
# 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

接著，我們需要修改podspec文件，因為要設(shè)置subspec子庫，所以需要注釋掉之前的 s.source_files 和原來的依賴庫, 然后設(shè)置子庫的subspec 和子庫依賴庫

# 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后面是我們文件目錄對應(yīng)名稱
• do后面是起的一個別名
• 別名.source_files是文件路徑 (注意路徑別寫錯)
• 別名. dependency后面是子庫的依賴庫

接著驗證podspec文件通過后 pod repo push命令提交索引文件，如果不知道怎么提交請參看我之前的這篇文章。

然后就可以回到FlowerField_Component項目
中通過下面幾種方式使用pod庫了

• pod 'FFBaseKit' 引入pod庫中所有模塊
• pod 'FFBaseKit/Category' 只引入Category模塊
• pod 'FFBaseKit', :subspecs => ['Category', 'Tools']

修改FlowerField_Component項目的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'  //剛才設(shè)置好的庫

end

pod install之后別忘了刪除FlowerField_Component項目項目里Other下的category文件，不然會報重復(fù)沖突的

pod之后發(fā)現(xiàn)我們的FFBaseKit下就只有Category一個功能模塊了

image.png

如果想pod APIs 或者 Tools模塊功能，需要注釋掉原來podspec文件下的pod，并刪除Other下對應(yīng)的文件夾即可

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