CMake: modify qtkeychain in android

Author: KangLin

Src/CMakeLists.txt

@@ -294,7 +294,21 @@ endif()
 option(WITH_QtKEYCHAIN "With qtkeychain" ON)
 if(WITH_QtKEYCHAIN)
     find_package(Qt${QT_VERSION_MAJOR}Keychain)
-    if(Qt${QT_VERSION_MAJOR}Keychain_FOUND)
+    if(NOT Qt${QT_VERSION_MAJOR}Keychain_FOUND)
+        # Fetch qtkeychain from GitHub
+        include(FetchContent)
+        FetchContent_Declare(
+            qtkeychain
+            GIT_REPOSITORY https://github.com/frankosterfeld/qtkeychain.git
+            GIT_TAG 0.15.0  # or specify a specific version/tag
+        )
+        # Configure qtkeychain build options before making it available
+        if(QT_VERSION_MAJOR GREATER_EQUAL 6)
+            set(BUILD_WITH_QT6 ON CACHE BOOL "" FORCE)
+        endif()
+        FetchContent_MakeAvailable(qtkeychain)
+    endif()
+    #if(Qt${QT_VERSION_MAJOR}Keychain_FOUND)
         list(APPEND PLUGIN_PRIVATE_DEFINITIONS HAVE_QTKEYCHAIN)
         list(APPEND PLUGIN_PRIVATE_LIBS Qt${QT_VERSION_MAJOR}Keychain::Qt${QT_VERSION_MAJOR}Keychain)
         list(APPEND PLUGIN_INCLUDE_DIRS $<BUILD_INTERFACE:${QTKEYCHAIN_INCLUDE_DIRS}/qt${QT_VERSION_MAJOR}keychain>)
@@ -306,7 +320,7 @@ if(WITH_QtKEYCHAIN)
                 DESTINATION "${CMAKE_INSTALL_DATADIR}"
                     COMPONENT DependLibraries)
         endif()
-    endif()
+    #endif()
 endif()
 
 list(APPEND PLUGIN_QT_COMPONENTS Core Gui Widgets Network Multimedia MultimediaWidgets)