How To Debug A ScreenSaver on Mavericks with XCode 5

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Why?

Until now, I installed the screensaver, launched System Preferences, chose the ScreenSaver and debugged it. There had to be a simpler way. And there is.

How?

The idea is to tell XCode to use the ScreenSaverEngine as executable and launch it with our built screensaver.

This is how you do it:

  1. Edit scheme
  2. Edit your Pre-Actions:
    DebugScreenSaverXCode5 01.png
    cp -pr "$BUILT_PRODUCTS_DIR/$FULL_PRODUCT_NAME" "$INSTALL_PATH/"
  3. Edit Run Info:
    DebugScreenSaverXCode5 02.png
    (choose ScreenSaverEngine located in /System/Library/FrameWorks/ScreenSaver.framework/Resources)
  4. Edit Run Arguments:
    DebugScreenSaverXCode5 03.png[1]
  5. Hit ⌘-R

  • Links
  • Footnotes:
  1. For some reason, the build-variables can't be used here, if they could, I'd recommend this:DebugScreenSaverXCode5 04.png
    -background -module "$FULL_PRODUCT_NAME"