Option 2: CocoaPods -- Untested Way -- Works

[vjeranc]

Hello, I've been trying to build stuff without manual intervention.

Using default app.xcodeproj/project.pbxproj file generated by react-native upgrade.

Adjusted Podfile from the AIR example:

# You Podfile should look similar to this file. Whether you use_frameworks! or not, the following configuration should work.
#
# However if you DO NOT use_frameworks! and you prefer to install pods instead of
# dragging the AirMaps directory into your project, refer to the comments below (steps 1~4)

source 'https://github.com/CocoaPods/Specs.git'

platform :ios, '8.0'
# use_frameworks!

# Change 'extraSpecialCoolAppName' to match the target in your Xcode project.
target 'extraSpecialCoolAppName' do
  pod 'React', path: '../node_modules/react-native', :subspecs => [
    'Core',
    'RCTActionSheet',
    'RCTGeolocation',
    'RCTImage',
    'RCTLinkingIOS',
    'RCTNetwork',
    'RCTSettings',
    'RCTText',
    'RCTVibration',
    'RCTWebSocket'
  ]

  # when not using frameworks  we can remove this line (2/4):
  # pod 'GoogleMaps', '~> 2.1.1'  # <~~ remove this line if you do not want to support GoogleMaps on iOS
  
  # when not using frameworks  we can do this instead of including the source files in our project (1/4):
  pod 'react-native-google-maps', path: '../node_modules/react-native-maps/react-native-google-maps.podspec'  # <~~ if you need GoogleMaps support on iOS
  pod 'react-native-maps', path: '../node_modules/react-native-maps/react-native-maps.podspec'
end

# when not using frameworks this might be necessary, but try without it first and see if `pod install` works (3/4):
# THIS IS ONLY NECESSARY IF YOU NEED GoogleMaps SUPPORT
pre_install do |installer|
  # copied from https://github.com/CocoaPods/CocoaPods/issues/2926
  # workaround for https://github.com/CocoaPods/CocoaPods/issues/3289
  def installer.verify_no_static_framework_transitive_dependencies; end
end

# when not using frameworks (4/4):
# THIS IS ONLY NECESSARY IF YOU NEED GoogleMaps SUPPORT
# #Crud, this shouldn't be necessary, but https://github.com/CocoaPods/CocoaPods/issues/5429
post_install do |installer|
  installer.pods_project.targets.each do |target|
    target.build_configurations.each do |config|
        config.build_settings['CLANG_ENABLE_MODULES'] = 'NO'
    end
  end
end

It's also necessary to change GoogleMaps version in this .podspec to 2.1.1. GMSMapStyle is present in 2.1.x but is used with 2.0.1 in .podspec (build fails).

Then everything will work with no issues.

[gilbox]

thanks for the report!