How to Manage Environment Settings with Build Configurations & Schemes in Xcode

When developing a system, you may want to use different settings depending on the environment when deploying your app to QA or production.

There are several ways to achieve this. Here, we'll explain how to create build configurations and schemes in Xcode, configure environment-specific build settings in Target Build Settings, and manage multiple settings using xcconfig files.

Table of Contents
  1. How to Add a Build Configuration in Xcode
  2. How to Create and Configure a Build Scheme in Xcode
  3. How to Configure Build Settings for Multiple Environments in the Xcode Project Editor
    1. Priority of Build Settings in Xcode
    2. Configuring Environment-Specific Build Settings in the Project Editor
  4. How to Create and Configure xcconfig Files for Environment Settings in Xcode
    1. Creating an xcconfig File in Xcode
    2. Assigning xcconfig Files to Configurations
    3. Adding and Managing Values in xcconfig Files
    4. Accessing xcconfig Values in Swift Code
  5. How to Determine Which Configuration Is Running in Swift