android studio如何通过 jni 调用第三方非标准 so库

#include "test.h"
add::add(){}
add::~add(){}
int add::add(int x, int y){
    return x + y;
}

#ifndef _test_jni_add_h_
#define _test_jni_add_h_
class add{
public :
    add();
    ~add();
    int add(int x, int y);
};
#endif

#指定cmake最小版本
cmake_minimum_required(version 3.4.1)
#设置生成的so动态库最后输出的路径
set(cmake_library_output_directory ${cmake_source_dir}/src/main/jnilibs/${android_abi})
#生成so
add_library( # 设置生成库的名字
        nativeso
        # 生成动态库
        shared
        # 指定源码文件，这里指定test.cpp文件
        src/main/jni/test.cpp )
#依赖的头文件
include_directories(${cmake_current_source_dir}/src/main/jni)
find_library( # log库的别名
        log-lib
        #log库
        log )
#链接代码到指定的库
target_link_libraries( # specifies the target library.
        nativeso
        # links the target library to the log library
        # included in the ndk.
        ${log-lib} )

android.usedeprecatedndk=true

package com.example.demo05;
public class jnicallnative {
    static {
        system.loadlibrary("mynativeso");
    }
    public static native  int  getaddfromnative(int a,int b);
}

 
#include <jni.h>
#include <string>
#include <test.h>//导入需要的.h文件，这个是必须的，如果依赖的第三方库没有.h，需要自己编写
extern "c"
jniexport jint jnicall java_com_example_demo05_jnicallnative_getaddfromnative
        (jnienv *, jclass, jint a, jint b){
    //生成add对象并调用方法
    add addobj;
    int result = addobj.add(a,b);
    return result;
}
 

#指定cmake最小版本
cmake_minimum_required(version 3.4.1)
#设置生成的so动态库最后输出的路径
set(cmake_library_output_directory ${cmake_source_dir}/src/main/jnilibs/${android_abi})
#生成so
add_library( # 设置生成库的名字
        mynativeso
        # 生成动态库
        shared
        # 指定源码文件，这里指定test.cpp文件
        src/main/jni/jninative.cpp )
#依赖的头文件
include_directories(${cmake_current_source_dir}/src/main/jni)
#依赖的add库
add_library(nativeso shared imported)
set_target_properties(nativeso
        properties imported_location
        ${cmake_current_source_dir}/src/main/jnilibs/${android_abi}/libnativeso.so)
find_library( # log库的别名
        log-lib
        #log库
        log )
#链接代码到指定的库
target_link_libraries( # specifies the target library.
        mynativeso
        #add库需要链接
        nativeso
        # links the target library to the log library
        # included in the ndk.
        ${log-lib} )
 

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.constraintlayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".mainactivity">
    <textview
        android:id="@+id/tv01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="hello world!"
        app:layout_constraintbottom_tobottomof="parent"
        app:layout_constraintend_toendof="parent"
        app:layout_constraintstart_tostartof="parent"
        app:layout_constrainttop_totopof="parent" />
</androidx.constraintlayout.widget.constraintlayout>

package com.example.demo05;
import android.os.bundle;
import android.widget.textview;
import androidx.activity.edgetoedge;
import androidx.appcompat.app.appcompatactivity;
import androidx.core.graphics.insets;
import androidx.core.view.viewcompat;
import androidx.core.view.windowinsetscompat;
public class mainactivity extends appcompatactivity {
    @override
    protected void oncreate(bundle savedinstancestate) {
        super.oncreate(savedinstancestate);
        edgetoedge.enable(this);
        setcontentview(r.layout.activity_main);
        viewcompat.setonapplywindowinsetslistener(findviewbyid(r.id.main), (v, insets) -> {
            insets systembars = insets.getinsets(windowinsetscompat.type.systembars());
            v.setpadding(systembars.left, systembars.top, systembars.right, systembars.bottom);
            return insets;
        });
        textview textview = findviewbyid(r.id.tv01);
        int addfromnative = jnicallnative.getaddfromnative(5, 5);
        textview.settext(addfromnative + "");
    }
}