安裝CocoaPods成功后，先不急著編寫(xiě)Podfile。按以下順序：

1、執(zhí)行：pod search AFNetworking，會(huì)提示

Setting up CocoaPods master repo

耐心等待后，提示

Setup completed

-> AFNetworking (2.5.0)

?? A delightful iOS and OS X networking framework.

?? pod 'AFNetworking', '~> 2.5.0'

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

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

?? - Versions: 2.5.0, 2.4.1, 2.4.0, 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 (2.5.0)

?? ? - AFNetworking/Security (2.5.0)

?? ? - AFNetworking/Reachability (2.5.0)

?? ? - AFNetworking/NSURLConnection (2.5.0)

?? ? - AFNetworking/NSURLSession (2.5.0)

?? ? - AFNetworking/UIKit (2.5.0)

-> AFNetworking+AutoRetry (0.0.5)

?? Auto Retries for AFNetworking requests

?? pod 'AFNetworking+AutoRetry', '~> 0.0.5'

。。。（很長(zhǎng)省略）

注意到AFNetworking 版本已經(jīng)是2.5.0

2、創(chuàng)建Podfile

轉(zhuǎn)到項(xiàng)目根目錄，vi Podfile，輸入內(nèi)容（因?yàn)楸救私ǖ捻?xiàng)目為ios8.1版本）：

platform :ios, '8.1'

pod 'AFNetworking', '~> 2.5.0'

保存。

3、執(zhí)行 pod install，稍等片刻

Analyzing dependencies

Downloading dependencies

Installing AFNetworking (2.5.0)

Generating Pods project

Integrating client project

[!] From now on use `Swift Weather.xcworkspace`.

成功pod install。