添加C++ native工程代码

cppLib/.gitignore

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+.idea
+build

cppLib/CMakeLists.txt

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+# CMake 最低版本号要求
+cmake_minimum_required(VERSION 3.5)
+
+# 项目名称和版本
+project(calculate)
+
+# 设置编译标准
+set(CMAKE_CXX_STANDARD 11)
+
+# 设置生成静态库还是动态库
+set(STATIC_OR_SHARED SHARED)
+
+# 设置输出目录
+IF(OHOS_ARCH STREQUAL "arm64-v8a")
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../dist/lib/arm64-v8a)
+ELSEIF(OHOS_ARCH STREQUAL "x86_64")
+    set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/../dist/lib/x86_64)
+ELSE()
+    MESSAGE(FATAL_ERROR "Unsupported architecture: ${OHOS_ARCH}")
+ENDIF()
+
+# 添加共享库
+add_library(${PROJECT_NAME} ${STATIC_OR_SHARED} library.cpp)
+
+# 解析配置
+if(EX_PLATFORM EQUAL 32)
+    set(EX_PLATFORM_FLAG -m32)
+elseif(EX_PLATFORM EQUAL 64)
+    set(EX_PLATFORM_FLAG -m64)
+else()
+	message(WARNING "User defined ex_platform not 32 or 64 !")
+endif()

cppLib/build.bat

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+@echo off
+chcp 65001 > nul
+set native_path=D:\AppData\Huawei\Sdk\HarmonyOS-NEXT-DP2\base\native\
+set toolchain=%native_path%build\cmake\ohos.toolchain.cmake
+set cmake_root=%native_path%build-tools\cmake\
+set cmake_path=%cmake_root%bin\cmake.exe
+set ninja_path=%cmake_root%bin\ninja.exe
+set make_path=C:\MinGW\msys\1.0\bin\make.exe
+
+if exist build (
+    del /q /s build
+) else (
+    mkdir build
+)
+
+if exist dist (
+    del /q /s dist
+)
+
+cd build
+:: 使用 make 构建
+:: %cmake_path% -G"Unix Makefiles" -DCMAKE_MAKE_PROGRAM="%make_path%" -DOHOS_STL=c++_static -DOHOS_ARCH=arm64-v8a -DOHOS_PLATFORM=OHOS -DCMAKE_TOOLCHAIN_FILE=%toolchain% ..
+:: %make_path%
+
+:: 使用 ninja 构建
+%cmake_path% -GNinja -DCMAKE_MAKE_PROGRAM="%ninja_path%" -DOHOS_STL=c++_static -DOHOS_ARCH=arm64-v8a -DOHOS_PLATFORM=OHOS -DCMAKE_TOOLCHAIN_FILE=%toolchain% ..
+%ninja_path%
+cd ../
+

cppLib/library.cpp

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+#include "library.h"
+
+#include <iostream>
+
+Calculate& Calculate::getInstance() {
+    // 使用静态局部变量确保线程安全地初始化单例对象
+    static Calculate instance;
+    return instance;
+}
+
+int Calculate::add(int a, int b) {
+    return a + b;
+}
+
+CalculateInfo Calculate::getInfo() {
+    CalculateInfo info;
+    info.name = "Calculate";
+    info.versionName = "Calculate_v1.0.0";
+    info.versionCode = 1;
+    return info;
+}

cppLib/library.h

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+#ifndef CPPLIB_LIBRARY_H
+#define CPPLIB_LIBRARY_H
+
+#include <string>
+
+struct CalculateInfo {
+    std::string name;
+    std::string versionName;
+    int versionCode;
+};
+
+class Calculate {
+public:
+    static Calculate& getInstance();
+    int add(int a, int b);
+    CalculateInfo getInfo();
+
+    // 删除拷贝构造函数和赋值运算符
+    Calculate(const Calculate&) = delete;
+    Calculate& operator=(const Calculate&) = delete;
+
+private:
+    // 构造函数和析构函数私有化
+    Calculate() {}
+    ~Calculate() {}
+};
+#endif //CPPLIB_LIBRARY_H
+
+
+