Create WatchKit extension XCode project structure

Usage
1

Hi,

At the moment I am using cmake for generating a xCode iOS project (using Qt for iOS framework) which is then used for creating an archive and for the app store submission. Now I want to add a WatchKit extension to the iOS app. This can be manually done in Xcode but each time cmake is run again, the xCode project is re-written and the WatchKit project structure must be manually re-created in xCode (which is a lot of work).

It is possible to compile for WatchOS (https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling-for-ios-tvos-or-watchos) but this does not create the appropriate xCode project structure.

Is it possible to generate a WatchOS/WatchKit extension structure (https://developer.apple.com/documentation/watchkit/setting_up_a_watchos_project?language=objc#3295999) using cmake?

Thanks,

2

There are XCODE_ATTRIBUTE_* properties that are available. But maybe this needs some dedicated support.

3

Yes, but to the best of my knowledge none of these work for this use case.

4

Knowing what to put into the Xcode project files would be a great help here. We’ve always had to reverse engineer the format.

5

Is it sufficient to post a project before and after adding the WatchKit extension (so that you can diff it)? Or do you need something else?

6

I suspect instructions for what boxes to poke in Xcode would also be helpful, but a before-and-after can’t hurt.

7

Attached is a sample project (https://bit.ly/41UY13r):

  • sampleqt: The Qt project with the CMakeLists.txt
  • build-sampleqt-Qt_6_5_0_for_iOS_BEFORE_WATCHKIT: The generated xCode project before adding WatchKit support.
  • build-sampleqt-Qt_6_5_0_for_iOS_AFTER_WATCHKIT: The generated xCode project after manually adding WatchKit support.
8

This video shows how to manually add WatchKit support to a xCode project: