目前關于ios qt的開發資料比較少，這里整理了幾個比較重要的開發要點，基于MacOS14 + Xcode15 + Qt15.5 + cmake + iphone真機。

• cmake報錯，報錯信息如下

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)

解決方法：添加cmake參數

-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()

參考來源：https://bugreports.qt.io/browse/QTCREATORBUG-26121

• 找不到openssl，報錯如下

  Could NOT find OpenSSL, try to set the path to OpenSSL root folder in thesystem variable OPENSSL_ROOT_DIR (missing: OPENSSL_INCLUDE_DIR)

實測設置OPENSSL_ROOT_DIR無效，這里可以手動指定相應的cmake變量，在FindOpenSSL.cmake做相應的修改。

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()

• 打開.pro項目文件報錯，無法展開項目文件樹

failed to parse default search paths from compiler output

解決方法：在qmake構建步驟添加額外參數

 -early QMAKE_DEFAULT_LIBDIRS=$(xcrun -show-sdk-path)/usr/lib

參與來源：https://bugreports.qt.io/browse/QTBUG-117225

• 設置AppIcon無效，解決方法：1）在Xcode中將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")