cocoapods安装与使用

CocoaPods是什么？

1.说这么一个现场，如果要引用第三方类库是不是要把他拖进项目引用或者copy，如果第三方类库更新了，你是不是又要重新应用更新啊？答案是肯定的。

2.另外一种情况，如果项目过大，且项目中有很多相对独立的功能，分工到不同人的手中维护升级开发，最后整合项目（其实可把他们看作第三方类库），是不是也会遇到copy或者引用的问题。

以上两点会导致，遇到更改就要换代码换文件，如果你的项目就一个，可以很轻松换掉，如果是10个，100个....估计就该抱怨了，cocoapos一个链接就搞定了，可以很好提高效率，同时有利于分工协作。

今天把cocoapods安装过程总结分享给大家。

CocoaPods安装

第一步：安装CocoaPods之前，首先要在本地安装好Ruby环境。（ruby安装 https://ruby-china.org/wiki/install_ruby_guide）

安装ruby过程如下：

a.确保已经安装xCode的Command Line Tools

b.打开终端：

ruby -e "$(curl -fsSL https://raw.github.com/mxcl/homebrew/go/install)"

第二步：当b步骤执行成功后，在终端输入：

sudo gem install cocoapods

发现没有反映，别急换个方法：

如果发现报：Could not find a valid gem 'cocoapods' (>= 0) in any repository 别急，这个问题说明是你的gem版本过旧了 (没有报错此步骤可以跳过)

在终端先输入：

sudo gem update --system

重新打开终端输入：

gem sources --remove https://rubygems.org/

会返回：

https://rubygems.org/ removed from sources

在输入：

gem sources -a http://ruby.taobao.org/

会返回：

http://ruby.taobao.org/ added to sources

检测一下在终端输入：

gem sources -l

得到如下：

*** CURRENT SOURCES ***

http://ruby.taobao.org/

为什么这么做？原因是国家的防火墙有点牛，猜的！

第三步：再次输入：

sudo gem install cocoapods

等待几十秒会返回：

Fetching: multi_json-1.10.1.gem (100%)
Successfully installed multi_json-1.10.1
Fetching: activesupport-3.2.19.gem (100%)
Successfully installed activesupport-3.2.19
Fetching: nap-0.8.0.gem (100%)
Successfully installed nap-0.8.0
Fetching: json_pure-1.8.1.gem (100%)
Successfully installed json_pure-1.8.1
Fetching: fuzzy_match-2.0.4.gem (100%)
Successfully installed fuzzy_match-2.0.4
Fetching: cocoapods-core-0.33.1.gem (100%)
Successfully installed cocoapods-core-0.33.1
Fetching: claide-0.6.1.gem (100%)
Successfully installed claide-0.6.1
Fetching: colored-1.2.gem (100%)
Successfully installed colored-1.2
Fetching: xcodeproj-0.17.0.gem (100%)
Building native extensions.  This could take a while...
[!] You are using the prebuilt binary version of the xcodeproj gem.
Successfully installed xcodeproj-0.17.0
Fetching: cocoapods-downloader-0.6.1.gem (100%)
Successfully installed cocoapods-downloader-0.6.1
Fetching: cocoapods-plugins-0.2.0.gem (100%)
Successfully installed cocoapods-plugins-0.2.0
Fetching: cocoapods-try-0.3.0.gem (100%)
Successfully installed cocoapods-try-0.3.0
Fetching: netrc-0.7.7.gem (100%)
Successfully installed netrc-0.7.7
Fetching: cocoapods-trunk-0.1.4.gem (100%)
Successfully installed cocoapods-trunk-0.1.4
Fetching: escape-0.0.4.gem (100%)
Successfully installed escape-0.0.4
Fetching: open4-1.3.4.gem (100%)
Successfully installed open4-1.3.4
Fetching: cocoapods-0.33.1.gem (100%)CHANGELOG:## 0.33.1##### Bug Fixes* Fix `pod spec lint` for `json` podspecs.  [Fabio Pelosin][irrationalfab][#2157](https://github.com/CocoaPods/CocoaPods/issues/2157)* Fixed downloader issues related to `json` podspecs.  [Fabio Pelosin][irrationalfab][#2158](https://github.com/CocoaPods/CocoaPods/issues/2158)* Fixed `--no-ansi` flag in help banners.  [Fabio Pelosin][irrationalfab][#34](https://github.com/CocoaPods/CLAide/issues/34)Successfully installed cocoapods-0.33.1
Parsing documentation for multi_json-1.10.1
Installing ri documentation for multi_json-1.10.1
Parsing documentation for activesupport-3.2.19
unable to convert "\x80" from ASCII-8BIT to UTF-8 for lib/active_support/values/unicode_tables.dat, skipping
Installing ri documentation for activesupport-3.2.19
Parsing documentation for nap-0.8.0
Installing ri documentation for nap-0.8.0
Parsing documentation for json_pure-1.8.1
Installing ri documentation for json_pure-1.8.1
Parsing documentation for fuzzy_match-2.0.4
Installing ri documentation for fuzzy_match-2.0.4
Parsing documentation for cocoapods-core-0.33.1
Installing ri documentation for cocoapods-core-0.33.1
Parsing documentation for claide-0.6.1
Installing ri documentation for claide-0.6.1
Parsing documentation for colored-1.2
Installing ri documentation for colored-1.2
Parsing documentation for xcodeproj-0.17.0
Installing ri documentation for xcodeproj-0.17.0
Parsing documentation for cocoapods-downloader-0.6.1
Installing ri documentation for cocoapods-downloader-0.6.1
Parsing documentation for cocoapods-plugins-0.2.0
Installing ri documentation for cocoapods-plugins-0.2.0
Parsing documentation for cocoapods-try-0.3.0
Installing ri documentation for cocoapods-try-0.3.0
Parsing documentation for netrc-0.7.7
Installing ri documentation for netrc-0.7.7
Parsing documentation for cocoapods-trunk-0.1.4
Installing ri documentation for cocoapods-trunk-0.1.4
Parsing documentation for escape-0.0.4
Installing ri documentation for escape-0.0.4
Parsing documentation for open4-1.3.4
Installing ri documentation for open4-1.3.4
Parsing documentation for cocoapods-0.33.1
Installing ri documentation for cocoapods-0.33.1
17 gems installed

我的终端：

CocoaPods使用

使用很简单如在终端输入：

pod search AFNetworking

结果返回：

Setting up CocoaPods master repo

嚓，知道吗？我等了足足半个小时。所以请内心等待.

半小时之后返回：

Setup completed (read-only access)

-> AFNetworking (2.3.1)

A delightful iOS and OS X networking framework.

pod 'AFNetworking', '~> 2.3.1'

- Homepage: https://github.com/AFNetworking/AFNetworking

- Source: https://github.com/AFNetworking/AFNetworking.git

- Versions: 2.3.1, 2.3.0, 2.2.4, 2.2.3, 2.2.2, 2.2.1, 2.2.0, 2.1.0, 2.0.3, 2.0.2, 2.0.1,

2.0.0, 2.0.0-RC3, 2.0.0-RC2, 2.0.0-RC1, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0, 1.2.1, 1.2.0,

1.1.0, 1.0.1, 1.0, 1.0RC3, 1.0RC2, 1.0RC1, 0.10.1, 0.10.0, 0.9.2, 0.9.1, 0.9.0, 0.7.0,

0.5.1 [master repo]

- Sub specs:

- AFNetworking/Serialization (2.3.1)

- AFNetworking/Security (2.3.1)

- AFNetworking/Reachability (2.3.1)

- AFNetworking/NSURLConnection (2.3.1)

- AFNetworking/NSURLSession (2.3.1)

- AFNetworking/UIKit (2.3.1)

-> AFNetworking+AutoRetry (0.0.3)

Auto Retries for AFNetworking requests

pod 'AFNetworking+AutoRetry', '~> 0.0.3'

- Homepage: https://github.com/shaioz/AFNetworking-AutoRetry

- Source: https://github.com/shaioz/AFNetworking-AutoRetry.git

- Versions: 0.0.3, 0.0.2, 0.0.1 [master repo]

-> AFNetworking+streaming (0.5)

A very quick extension to AFNetworking that adds stream based parsing

pod 'AFNetworking+streaming', '~> 0.5'

- Homepage: https://github.com/deanWombourne/AFNetworking-streaming

- Source: https://github.com/deanWombourne/AFNetworking-streaming.git

- Versions: 0.5, 0.4, 0.3, 0.2, 0.1 [master repo]

- Sub specs:

- AFNetworking+streaming/Core (0.5)

- AFNetworking+streaming/Json (0.5)

-> AFNetworking-MUResponseSerializer (1.0.0)

Automatically serialize JSON response to your object model. It also works with

NSManagedObjects.

pod 'AFNetworking-MUResponseSerializer', '~> 1.0.0'

- Homepage: https://github.com/Ulianko/AFNetworking-MUResponseSerializer

- Source: https://github.com/Ulianko/AFNetworking-MUResponseSerializer.git

- Versions: 1.0.0 [master repo]

-> AFNetworking-RACExtensions (0.1.4)

AFNetworking-RACExtensions is a delightful extension to the AFNetworking classes for iOS

and Mac OS X.

pod 'AFNetworking-RACExtensions', '~> 0.1.4'

- Homepage: https://github.com/CodaFi/AFNetworking-RACExtensions

- Source: https://github.com/CodaFi/AFNetworking-RACExtensions.git

- Versions: 0.1.4, 0.1.2, 0.1.1, 0.0.1 [master repo]

-> AFNetworking-ReactiveCocoa (0.0.2)

Make AFNetworking reactive.

pod 'AFNetworking-ReactiveCocoa', '~> 0.0.2'

- Homepage: https://github.com/uasi/AFNetworking-ReactiveCocoa

- Source: https://github.com/uasi/AFNetworking-ReactiveCocoa.git

- Versions: 0.0.2, 0.0.1 [master repo]

-> AFNetworking-Synchronous (0.2.0)

Synchronous requests for AFNetworking

pod 'AFNetworking-Synchronous', '~> 0.2.0'

- Homepage: https://github.com/paulmelnikow/AFNetworking-Synchronous

- Source: https://github.com/paulmelnikow/AFNetworking-Synchronous.git

- Versions: 0.2.0, 0.1.0 [master repo]

-> AFNetworking2-RACExtensions (0.0.1)

AFNetworking-RACExtensions is a delightful extension to the AFNetworking classes for iOS

and Mac OS X.

pod 'AFNetworking2-RACExtensions', '~> 0.0.1'

- Homepage: https://github.com/knshiro/AFNetworking-RACExtensions

- Source: https://github.com/knshiro/AFNetworking-RACExtensions.git

- Versions: 0.0.1 [master repo]

-> CollectionUtils-AFNetworking (1.0.1)

CollectionUtils additions for AFNetworking.

pod 'CollectionUtils-AFNetworking', '~> 1.0.1'

- Homepage: https://github.com/kishikawakatsumi/CollectionUtils

- Source: https://github.com/kishikawakatsumi/CollectionUtils.git

- Versions: 1.0.1, 1.0.0 [master repo]

-> CollectionUtils-AFNetworking-1.3 (1.0.1)

CollectionUtils additions for AFNetworking 1.3.x.

pod 'CollectionUtils-AFNetworking-1.3', '~> 1.0.1'

- Homepage: https://github.com/kishikawakatsumi/CollectionUtils

- Source: https://github.com/kishikawakatsumi/CollectionUtils.git

- Versions: 1.0.1, 1.0.0 [master repo]