Using CocoaPods in Your Swift3 and Objective-C Projects

Step 1 - 

Open Terminal

sudo gem install cocoapods

Step 2 -

cd ~/Desktop/CocoapodsTest

 

Step 3 -

 pod init

Step 4 -    CocoaPod then generates the Podfile in project folder like this :

# Uncomment this line to define a global platform for your project

# platform :ios, '9.0'

target 'CocoapodsTest' do

  # Comment this line if you're not using Swift and don't want to use dynamic frameworks

  use_frameworks!

  # Pods for CocoapodsTest

end

 Step 5 - Type the following command to open the file with vim:

vim Podfile

  

 Step 6 -

Suppose you’re going to use Firebase in your Xcode project. To do so, edit the file content like this to configure the Firebase pod.

# Uncomment this line to define a global platform for your project

# platform :ios, '9.0'

target 'CocoapodsTest' do

  # Comment this line if you're not using Swift and don't want to use dynamic frameworks

  use_frameworks!

  # Pods for CocoapodsTest

  pod 'Firebase'

end

  

 Step 7 - That’s it. To exit vim, hit the escape key and then type: 

:wq

  

Step 8 -

pod install

 Step 9 -
  
So from now on, you have to use ProjectName.xcworkspace instead of ProjectName.xcodeproj.
 

 Step 10 -

Now all there’s left to do is use the Firebase pod. Let’s navigate back to Xcode and inside the IDE, go to ViewController.swift. At the top, type:

import Firebase

* And look at that! You are up and running with CocoaPods!

# For more in detail refer link