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目前关于ios qt的开发资料比较少，这里整理了几个比较重要的开发要点，基于MacOS14 + Xcode15 + Qt5.15 + cmake + iphone真机。
- cmake报错，报错信息如下
CMake Error at /Users/user/Qt/5.15.5/ios/lib/cmake/Qt5Core/Qt5CoreConfig.cmake:91 (message):
Library not found: MobileCoreServices
Call Stack (most recent call first):
/Users/user/Qt/5.15.5/ios/lib/cmake/Qt5Core/Qt5CoreConfig.cmake:263
(_qt5_Core_process_prl_file)
/Users/user/Qt/5.15.5/ios/lib/cmake/Qt5/Qt5Config.cmake:28 (find_package)
CMakeLists.txt:28 (find_package)解决方法：添加cmake参数
-DCMAKE_FIND_ROOT_PATH:STRING=%{Qt:QT_INSTALL_PREFIX}
-DCMAKE_SYSTEM_NAME=iOS
-DCMAKE_OSX_SYSROOT=iphoneos
-DCMAKE_OSX_ARCHITECTURES=arm64并在CMakeLists.txt中添加
if(IOS)target_link_options(${user_project_target_name} PRIVATE "-Wl,-e,_qt_main_wrapper")
endif()参考来源：https://bugreports.qt.io/browse/QTCREATORBUG-26121
- 找不到openssl，报错如下
Could NOT find OpenSSL, try to set the path to OpenSSL root folder in thesystem variable OPENSSL_ROOT_DIR (missing: OPENSSL_INCLUDE_DIR)实测设置OPENSSL_ROOT_DIR无效，这里可以手动指定相应的cmake变量，在FindOpenSSL.cmake做相应的修改。
FIND_PATH(OPENSSL_INCLUDE_DIRNAMESopenssl/ssl.hPATH_SUFFIXES"include"HINTS${_OPENSSL_INCLUDEDIR}${_OPENSSL_ROOT_HINTS_AND_PATHS}PATH_SUFFIXESinclude
)# add for ios
IF(IOS AND NOT OPENSSL_INCLUDE_DIR)set (OPENSSL_INCLUDE_DIR "/usr/local/opt/opensslios@1.1/include")set (SSL_LIBRARY "/usr/local/opt/opensslios@1.1/lib/libssl.a")set (CRYPTO_LIBRARY "/usr/local/opt/opensslios@1.1/lib/libcrypto.a")list(APPEND OPENSSL_LIBRARIES ${CRYPTO_LIBRARY} ${SSL_LIBRARY})
ENDIF()- 打开.pro项目文件报错，无法展开项目文件树
failed to parse default search paths from compiler output解决方法：在qmake构建步骤添加额外参数
-early QMAKE_DEFAULT_LIBDIRS=$(xcrun -show-sdk-path)/usr/lib
参考来源：https://bugreports.qt.io/browse/QTBUG-117225
- 设置AppIcon无效，解决方法：1）在Xcode中将xcassets文件添加到Build Phases中的Copy Bundle Resources中；2）也可以在cmake如下添加：
set_target_properties(${MODULE_NAME} PROPERTIES RESOURCE "xxx.xcassets")