iOS – How to use CocoaPods in an iOS project?

Install CocoaPods to Mac

how-to-install-xcode-homebrew-git-rvm-ruby-on-mac

https://gorails.com/setup/macos/13-ventura

• Install ruby manager chruby

$ brew install chruby ruby-install

• Install the latest ruby using ruby-install

brew config

// CLT: N/A
// Xcode: 14.1

// If you see "14" in CLT or XCode
$ ruby-install ruby -- --enable-shared // Install latest
or
$ ruby-install 2.7.5 -- --enable-shared // Install a specific version

// If not
$ ruby-install ruby // Install latest
or
$ ruby-install 2.7.5 // Install a specific version

• Add lines into ~/.zshrc file
  Remember to change 2.7.5 version number to your appropriate one

source /usr/local/opt/chruby/share/chruby/chruby.sh
source /usr/local/opt/chruby/share/chruby/auto.sh
chruby ruby-2.7.5

$ source ~/.zshrc
$ ruby -v. # Make sure it returns 2.7.5

• Install gem cocoapods

$ sudo gem install cocoapods

$ pod setup --verbose

Create pod file

• Close XCode
• Run following command inside project folder

$ pod init

Add library

Add Bluecap into Pod file

# Uncomment the next line to define a global platform for your project
# platform :ios, '9.0'

target 'SimpleBleCentral' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

  # Pods for SimpleBleCentral
  pod 'BlueCapKit', '~> 0.7'
end

Install

$ pod install

*.xcworkspace file is created

From now on, open xcworkspace file to develop iOS project

How to change Swift version of a Pod library?

Add the following script at the end of Podfile, outside any block else

post_install do |installer|
    installer.pods_project.targets.each do |target|
        # You can add as many as pod libraries you like
        if ['KleanroomLogger', 'ActiveLabel', 'Kingfisher'].include? target.name
            target.build_configurations.each do |config|
                config.build_settings['SWIFT_VERSION'] = '4.0'
            end
        end
    end
end

Issues

error Your Ruby version is 3.1.2, but your Gemfile specified 2.7.5

This happens in React Native setup

• Install this ruby version

brew config

// CLT: N/A
// Xcode: 14.1

// If you see "14" in CLT or XCode
$ ruby-install 2.7.5 -- --enable-shared // Install a specific version

// If not
$ ruby-install 2.7.5 // Install a specific version

• (Optional) If you get error ld: symbol(s) not found for architecture x86_64

brew install openssl --force

// Link openssl after install
brew link openssl@3

// If you see "14" in CLT or XCode
$ ruby-install 2.7.5 -- --enable-shared // Install a specific version

// If not
$ ruby-install 2.7.5 // Install a specific version

• Change ~/.zshrc

source /usr/local/opt/chruby/share/chruby/chruby.sh
source /usr/local/opt/chruby/share/chruby/auto.sh
chruby ruby-2.7.5
#chruby ruby-3.1.2

source ~/.zshrc

• Check ruby version

$ chruby
 * ruby-2.7.5
   ruby-3.1.2

How to run Intel iOS project on XCode of M1 Mac?

Add the following lines into podfile

post_install do |installer|
  ...
  installer.pods_project.build_configurations.each do |config|
    config.build_settings["EXCLUDED_ARCHS[sdk=iphonesimulator*]"] = "arm64"
  end
  ...
end