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Xcode.markdown

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Move text

  • Move line up or down: cmd-option-[ or cmd-option-]

View

  • Center screen around cursor: ^l

Edit multiple lines

See: https://developer.apple.com/videos/play/wwdc2018/102/?time=2518

  • Create new cursors: shift + control + left click
  • New cursor above: shift + control + <up arrow>
  • New cursor below: shift + control + <down arrow>
  • Create a new cursor on every line: option + drag

Swift notes

  • Use ctrl-6 to quick access MARKed sections, structs, etc.
  • The MARK: - construct creates a divider line
  • The MARK: note or MARK: - note constructs create notes
  • Also useful: // TODO: - and // FIXME: -
  • Use #warning("message") to create compiler warnings.
  • Use #error("message") to create compiler errors.
  • Use @available(swift, deprecated: <version number>) to check on progress on bugs in the language. If you use a current version number, you will get a "deprecated" warning anywhere you've used that code (e.g., put the mark on the line above the definition of a struct or a protocol, etc.). Can include a message: @available(swift, deprecated: -, message: -). Also may use obsoleted instead of deprecated to generate a compiler error instead of a warning. And swift here is a platform argument, so it could be iOS, etc.