Could someone explain the difference between the Copy Bundle Resources phase of Xcode and a Copy Files phase? When would I use "Copy Files"?
Copy Bundle Resources phase copies files that you want to be available in your bundle (.app). On the other hand Copy Files phase copies files to other (standard) locations accessible from your application (for example to /Library/Fonts) giving you also the option to copy them only when installing. You can also see relevant documentation here
Copy Files - Copies files from a project to an external specified location.
It is useful, for example, when you are creating an Objective-C Static Library where you should expose .modulemap or/and umbrella.h files
Copy Bundle Resources - Copies files that support your source code into internal structure. If you want to make sure the files you added will get copied to the application bundle
It is useful, when you are creating an app where you can add images and other resources
Read more here
来源：https://stackoverflow.com/questions/11163276/what-is-the-difference-between-copy-bundle-resources-and-copy-files-for-xcode-bu