将现有的jni库(已编译为".so")添加到另一个android studio项目中 [英] adding existing jni libraries (already compiled ".so") to another android studio project

问题描述

我还没有找到能够在线回答我的特定问题的人.我有一个旧的Android项目，我想从其中复制一些.so库并将其粘贴到新项目中.我对这些东西不熟悉，我知道我需要告诉新程序在哪里可以找到这些库，但是我不知道是否应该使用CMake或NDK导入alreay编译的代码.这是我的目录的样子:

I haven't found anyone who has been able to answer my specific question online. I have an old Android project that I want to copy some .so libraries from and paste them into a new project. I'm new to this stuff and I know I need to tell my new program where to find these libraries but I don't know if I should be using CMake or NDK to import alreay compiled code. This is what my directory looks like:

我在程序中这样调用该库:

I call for this library in my program like this:

static {
        System.loadLibrary("serial_port");
    }

但是我如何告诉编译器在哪里可以找到这些复制和粘贴的文件?

But how do I tell the compiler where to find these copied and pasted files?

我基于Android的文档启动了一个文件但是我对一些事情感到困惑.这是我到目前为止的内容:

I started a file based on the documentation from Android but I'm confused about a few things. This is what I have so far:

# Sets the minimum version of CMake required to build your native library.
# This ensures that a certain set of CMake features is available to
# your build.

cmake_minimum_required(VERSION 3.4.1)

# Specifies a library name, specifies whether the library is STATIC or
# SHARED, and provides relative paths to the source code. You can
# define multiple libraries by adding multiple add.library() commands,
# and CMake builds them for you. When you build your app, Gradle
# automatically packages shared libraries with your APK.

add_library( # Specifies the name of the library.
             serial_port

             # Sets the library as a shared library.
             SHARED

             IMPORTED

             serial_port/src/${ANDROID_ABI}/libserial_port.so

             # Provides a relative path to your source file(s).
             src/main/cpp/libs/armeabi/libserial_port.so )

我认为我做的不对.请看一下并指出正确的方向.谢谢

I don't think I'm doing it right. Please take a look and point me in the right direction. Thanks

推荐答案

您需要将它们保留在各自文件夹的目录jniLibs中.

You need to keep them inside the dir jniLibs in their respective folders.

例如

/app/src/main/jniLibs/armeabi/libserial_port.so

/app/src/main/jniLibs/armeabi/libserial_port.so

您无需使用任何其他工具(例如CMake)即可使用它们.您可以直接加载它们.

And you don't need to use any other tools like CMake to use them. You can directly load them.

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