Visual C++ 跨平台 android:包括预构建的共享库 [英] visual c++ cross platform android: Include prebuilt shared library

问题描述

我正在使用适用于 Android 的 Visual C++ 跨平台工具，如下所述:https://msdn.microsoft.com/en-us/library/dn707591.aspx

I'm using the Visual C++ Cross Platform Tools for Android as described here: https://msdn.microsoft.com/en-us/library/dn707591.aspx

到目前为止一切正常(我可以在手机上构建和运行文件 -> 新项目 -> 跨平台 -> Android 下的模板).但是，我不知道如何以 *.so 文件的形式将我的应用链接到预构建的共享库.

Everything works fine so far (I can build and run on my phone the templates under File -> New Project -> Cross Platform -> Android). However, I can't find out how to link my app to a prebuilt shared library in the form of an *.so file.

到目前为止，我尝试了以下步骤:

So far, I tried the following steps:

第一步

为了测试 Visual Studio 链接到预构建共享库的能力，我创建了一个小型共享库，如下所示:

To test the ability of Visual Studio to link to a prebuilt shared library, I created a small shared library as follows:

SharedLibrary.cpp:

SharedLibrary.cpp:

#include "SharedLibrary.h"

const char * SharedLibrary::GetString()
{
    return "Hello from Shared Library";
}

void SharedLibrary()
{
}

SharedLibrary::SharedLibrary()
{
}

SharedLibrary::~SharedLibrary()
{
}

SharedLibrary.h:

SharedLibrary.h:

#pragma once

class SharedLibrary
{
public:
    const char * GetString();
    SharedLibrary();
    ~SharedLibrary();
};

Android.mk:

Android.mk:

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := SharedLibrary
LOCAL_SRC_FILES := SharedLibrary.cpp
include $(BUILD_SHARED_LIBRARY)

第 2 步

然后我使用命令 ndk-build 编译了这个共享库，它给了我一个文件 libSharedLibrary.so

I then compiled this shared library using the command ndk-build, which gives me a file libSharedLibrary.so

步骤 3

然后我创建了一个 Visual Studio 项目:文件 -> 新建 -> 项目 -> 跨平台 -> Android -> 基本应用程序(Android、Ant).该项目编译并运行良好.

I then created a Visual Studio project: File -> New -> Project -> Cross Platform -> Android -> Basic Application (Android, Ant). This project compiles and runs fine.

步骤 4

下一步是我卡住的地方:我需要以某种方式将 libSharedLibrary.so 文件链接到 Visual Studio 项目.我在 Visual Studio 项目的项目选项中找不到任何允许我执行此操作的内容.

The next step is where I am stuck: I need to somehow link the libSharedLibrary.so file to the Visual Studio project. I couldn't find anything in the project options of the Visual Studio project which allows me to do this.

所以，这是我的问题:我必须如何设置我的 Visual C++ 跨平台 Android 项目才能将共享对象 (*.so) 链接到它?

So, here is my question: How do I have to setup my Visual C++ cross platform Android project in order to link a shared object (*.so) to it?

这是我的第一篇 stackoverflow 帖子，如果我在帖子中做错了什么，请随时纠正我.

This is my first stackoverflow post, so feel free to correct me, if I did anything wrong in my post.

推荐答案

在投入了大量愚蠢的时间之后，我找到了解决方案(感谢 Microsoft 没有在任何地方记录此功能......):

After investing a stupidly large amount of time, I found the solution (thanks Microsoft for not documenting this functionality anywhere...):

• 打开 Visual Studio 解决方案
• 转到 Android 打包项目
• 右键单击项目，然后选择添加"->新建文件夹"
• 将新文件夹命名为libs"(此命名是强制性的！)
• 为每个目标处理器架构创建一个子文件夹(例如armeabi-v7a")
• 将相应的 *.so 文件拖放到这些子文件夹中

在编译项目时，'libs' 文件夹及其内容会被复制到编译后的 *.apk 文件中.

When compiling the project, the 'libs' folder and its content get copied into the compiled *.apk file.

希望这对某人有所帮助！

Hope this helped out somebody!

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