iOS / CMake problems including launch screen
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I'm finishing up my first app that uses Qt 6.8 and CMake, after a long time using 5.15 and QMake. I'm having some trouble getting it fully working in iOS. I can get the app running with no launch screen, but I'm now trying to add a simple launch screen, and my attempts either result in no launch screen displayed or CMake errors.
I've created my asset catalog, which I've successfully done before in 5.15. I found some info online about how to include the asset catalog and my own Info.plist template in the build. However, now when I try to run CMake I get this error:
error: unable to read property list from file: /Users/ron/Work/build-SmartMultiboxEditor-Qt_6_8_2_for_iOS/CMakeFiles/SmartMultiboxEditor.dir/Info.plist: The operation couldn’t be completed. (XCBUtil.PropertyListConversionError error 2.) (in target 'SmartMultiboxEditor' from project 'SmartMultiboxEditor')
Looking at SmartMultiboxEditor.dir/Info.plist, it's a binary plist file. I'm guessing that this isn't supposed to happen?
I'm attaching my Cmakelists.txt and the Info.plist file I'm starting with. Can anyone point out my error(s)?
CmakeLists.txt
cmake_minimum_required(VERSION 3.21) project(SmartMultiboxEditor VERSION 1.1.0 LANGUAGES CXX) set(CMAKE_CXX_STANDARD_REQUIRED ON) set(CMAKE_OSX_ARCHITECTURES "x86_64;arm64") find_package(Qt6 6.8 REQUIRED COMPONENTS Quick) qt_standard_project_setup(REQUIRES 6.8) # Find all QML/JS files for the QML compiler: file(GLOB_RECURSE QmlFiles RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} qml/*.qml qml/*.js) # Find all non-QML/JS files in the qml and assets folder to add as resources: file(GLOB_RECURSE AssetsFiles RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} assets/* firmware/*) list(REMOVE_ITEM AssetsFiles ${QmlFiles}) if(APPLE) if(IOS) set(app_icon "${CMAKE_CURRENT_SOURCE_DIR}/icons/SMBEditorIOSIcon.icns") set(MACOSX_BUNDLE_ICON_FILE "SMBEditorIOSIcon.icns") set(launch_screen "${CMAKE_CURRENT_SOURCE_DIR}/ios/RJMLaunchScreen.storyboard") set_source_files_properties(${launch_screen} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources") else() set(app_icon "${CMAKE_CURRENT_SOURCE_DIR}/icons/SMBEditorIcon.icns") set(MACOSX_BUNDLE_ICON_FILE "SMBEditorIcon.icns") set(launch_screen "") endif() set_source_files_properties(${app_icon} PROPERTIES MACOSX_PACKAGE_LOCATION "Resources") qt_add_executable(SmartMultiboxEditor MACOSX_BUNDLE main.h main.cpp btea.h btea.cpp cppinterface.h cppinterface.cpp defaultscripts.cpp firmwareupdate.h firmwareupdate.cpp globals.h rjf_file.h settings.h settingstransfer.h settingstransfer.cpp smbsyntaxhighlighter.h smbsyntaxhighlighter.cpp ${QmlFiles} ${AssetsFiles} ${app_icon} ${launch_screen} ) else() set(app_icon "${CMAKE_CURRENT_SOURCE_DIR}/icons/SMBEditorIcon.rc") qt_add_executable(SmartMultiboxEditor main.h main.cpp btea.h btea.cpp cppinterface.h cppinterface.cpp defaultscripts.cpp firmwareupdate.h firmwareupdate.cpp globals.h rjf_file.h settings.h settingstransfer.h settingstransfer.cpp smbsyntaxhighlighter.h smbsyntaxhighlighter.cpp ${QmlFiles} ${AssetsFiles} ${app_icon} ) endif() if(IOS) # Asset catalog root target_sources(SmartMultiboxEditor PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets") set_source_files_properties("${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets" PROPERTIES MACOSX_PACKAGE_LOCATION Resources ) # Asset catalog app icon set list(APPEND app_icon_set "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/AppIcon.appiconset") list(APPEND app_icon_set "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/Contents.json") set_source_files_properties(${app_icon_set} PROPERTIES MACOSX_PACKAGE_LOCATION Resources/Media.xcassets ) # Asset catalog icon files file(GLOB app_icon_files CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/AppIcon.appiconset/*.png") list(APPEND app_icon_files "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/AppIcon.appiconset/Contents.json") set_source_files_properties(${app_icon_set} PROPERTIES MACOSX_PACKAGE_LOCATION Resources/Media.xcassets/AppIcon.appiconset ) # Asset catalog launch screen list(APPEND launch_screen_set "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/RJMLaunchScreen.imageset") list(APPEND launch_screen_set "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/Contents.json") set_source_files_properties(${launch_screen_set} PROPERTIES MACOSX_PACKAGE_LOCATION Resources/Media.xcassets ) # Asset catalog launch screen file(GLOB launch_screen_files CONFIGURE_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/RJMLaunchScreen.imageset/*.png") list(APPEND launch_screen_files "${CMAKE_CURRENT_SOURCE_DIR}/Media.xcassets/RJMLaunchScreen.imageset/Contents.json") set_source_files_properties(${launch_screen_files} PROPERTIES MACOSX_PACKAGE_LOCATION Resources/Media.xcassets/RJMLaunchScreen.imageset ) endif() add_subdirectory(ConnectedDeviceListModel) add_subdirectory(MIDI) add_subdirectory(rtmidi) add_subdirectory(ScriptListModel) add_subdirectory(../SmartMultibox/SmartMultiboxFW/ SmartMultibox) qt_add_qml_module(SmartMultiboxEditor URI SmartMultiboxEditor VERSION 1.0 QML_FILES ${QmlFiles} ) qt_add_resources(SmartMultiboxEditor assetresources PREFIX "/" FILES ${AssetsFiles} ) target_compile_options(SmartMultiboxEditor PRIVATE -DUSE_QT -DNOMIDICI) if(APPLE) target_compile_options(SmartMultiboxEditor PRIVATE -D__MACOSX_CORE__) else() target_compile_options(SmartMultiboxEditor PRIVATE -D__WINDOWS_MM__ -DRTMIDI_DO_NOT_ENSURE_UNIQUE_PORTNAMES) endif() target_include_directories(SmartMultiboxEditor AFTER PRIVATE ../SmartMultibox/SmartMultiboxFW/Core/Inc) if(APPLE) target_link_libraries(SmartMultiboxEditor PRIVATE Qt6::Quick "-framework CoreAudio" "-framework CoreMIDI") else() target_link_libraries(SmartMultiboxEditor PRIVATE Qt6::Quick "-lwinmm") endif() # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1. # If you are developing for iOS or macOS you should consider setting an # explicit, fixed bundle identifier manually though. set_target_properties(SmartMultiboxEditor PROPERTIES MACOSX_BUNDLE_GUI_IDENTIFIER com.RJMMusic.smartMultiboxEditor MACOSX_BUNDLE_COPYRIGHT "Copyright (c) 2025 RJM Music Technology, Inc." MACOSX_BUNDLE_BUNDLE_VERSION ${PROJECT_VERSION} MACOSX_BUNDLE_SHORT_VERSION_STRING ${PROJECT_VERSION} MACOSX_BUNDLE TRUE WIN32_EXECUTABLE TRUE ) if(IOS) set_target_properties(SmartMultiboxEditor PROPERTIES MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/ios/Info.plist") endif() target_link_libraries(SmartMultiboxEditor PRIVATE Qt6::Quick ) include(GNUInstallDirs) install(TARGETS SmartMultiboxEditor BUNDLE DESTINATION . LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} )
Info.plist
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>CFBundleDisplayName</key> <string>Smart Multibox Editor</string> <key>CFBundleExecutable</key> <string>SmartMultiboxEditor</string> <key>CFBundleIconFile</key> <string>SMBEditorIOSIcon.icns</string> <key>CFBundleIdentifier</key> <string>${MACOSX_BUNDLE_GUI_IDENTIFIER}</string> <key>CFBundleName</key> <string>${MACOSX_BUNDLE_BUNDLE_NAME}</string> <key>CFBundlePackageType</key> <string>APPL</string> <key>CFBundleShortVersionString</key> <string>${MACOSX_BUNDLE_BUNDLE_VERSION}</string> <key>CFBundleSignature</key> <string>????</string> <key>CFBundleSupportedPlatforms</key> <array> <string>iPhoneOS</string> </array> <key>CFBundleVersion</key> <string>${MACOSX_BUNDLE_BUNDLE_VERSION}</string> <key>LSRequiresIPhoneOS</key> <true/> <key>MinimumOSVersion</key> <string>16</string> <key>NSHumanReadableCopyright</key> <string>${MACOSX_BUNDLE_COPYRIGHT}</string> <key>UIDeviceFamily</key> <array> <integer>1</integer> <integer>2</integer> </array> <key>UILaunchStoryboardName</key> <string>RJMLaunchScreen</string> <key>UIRequiredDeviceCapabilities</key> <array> <string>arm64</string> </array> <key>UISupportedInterfaceOrientations</key> <array> <string>UIInterfaceOrientationPortrait</string> <string>UIInterfaceOrientationPortraitUpsideDown</string> <string>UIInterfaceOrientationLandscapeLeft</string> <string>UIInterfaceOrientationLandscapeRight</string> </array> </dict> </plist>