unity+ndk+android+.so+apk

r囧r小猫 2022-02-16 15:20 275阅读 0赞

系统环境：**win10** \+ **Unity 2018.3.13f1 (64-bit)**

# 1. [安装NDK][NDK] #

解压下载后的文件夹，将文件夹路径添加到系统环境变量Path中  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NtaWxpZmVf_size_16_color_FFFFFF_t_70]

# 2. 编写文件 #

makeSo文件夹名称可以修改，但jni不要修改  
![在这里插入图片描述][20190422170351353.png]  
参考链接：[https://docs.unity3d.com/Manual/PluginInspector.html][https_docs.unity3d.com_Manual_PluginInspector.html]

[Android.mk][]

LOCAL_PATH := $(call my-dir)
    include $(CLEAR_VARS)
    
    LOCAL_MODULE     :=  NativeCode
    LOCAL_C_INCLUDES := $(LOCAL_PATH)
    LOCAL_SRC_FILES  := NaviteCode.cpp
    LOCAL_LDLIBS     := -llog -landroid
    LOCAL_CFLAGS    := -DANDROID_NDK
    
    include $(BUILD_SHARED_LIBRARY)

[Application.mk][]

APP_STL := c++_static
    APP_CPPFLAGS := -frtti -std=c++11
    APP_PLATFORM := android-19
    APP_CFLAGS += -Wno-error=format-security
    APP_BUILD_SCRIPT := Android.mk
    APP_ABI := armeabi-v7a x86

NaviteCode.cpp

#include "NaviteCode.h"
    
    extern "C" { 
    	int MyAddFunc(int _a, int _b)
    	{ 
    		return _a + _b;
    	}
    }

NaviteCode.h

#ifndef __NativeCode_H__
    #define __NativeCode_H__
    
    extern "C"
    { 
    	int MyAddFunc(int _a, int _b);
    }
    
    #endif

# 3. ndk-build #

Win\+r：输入cmd  
![在这里插入图片描述][2019042217122371.png]  
会生成**obj libs**两个文件夹  
![在这里插入图片描述][20190422171249536.png]

# 4. 新建unity工程 #

将libs文件夹复制到Assets/Plugins/Android，没有则自己创建  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NtaWxpZmVf_size_16_color_FFFFFF_t_70 1]  
show.cs

using System.Collections;
    using System.Collections.Generic;
    using UnityEngine;
    using System.Runtime.InteropServices;
    
    public class show : MonoBehaviour
    { 
        [DllImport("NativeCode")]
        public static extern int MyAddFunc(int x, int y);
    
        // Start is called before the first frame update
        void Start()
        { 
    
        }
    
        // Update is called once per frame
        void Update()
        { 
            gameObject.transform.Translate(new Vector3(0, 0, MyAddFunc(1, 1)));
        }
    }

将show.cs绑定到一个物体中，实现运动功能

# 5.生成apk #

file->Build Settings  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NtaWxpZmVf_size_16_color_FFFFFF_t_70 2]

# 6.注意事项 #

不论怎么选择，editor中是无法运行程序的，会一直报错**dllnotfoundexception**，发布成apk在安卓真机或模拟器上运行即可

[NDK]: https://developer.android.com/ndk/downloads/index.html?hl=zh-cn#download
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NtaWxpZmVf_size_16_color_FFFFFF_t_70]: /images/20220216/a72527fc975b49b4995237e87590c3d0.png
[20190422170351353.png]: /images/20220216/1b067c0a5c8a47e9b8afb5f22b633082.png
[https_docs.unity3d.com_Manual_PluginInspector.html]: https://docs.unity3d.com/Manual/PluginInspector.html
[Android.mk]: http://Android.mk
[Application.mk]: http://Application.mk
[2019042217122371.png]: /images/20220216/12b8fe5d8e7e48abb607e84a17c33dd0.png
[20190422171249536.png]: /images/20220216/c7b6a98ba77e42b6bfc20966cca5e07e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NtaWxpZmVf_size_16_color_FFFFFF_t_70 1]: /images/20220216/c2b4b225bd0d42ce90dd55495e454dac.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3NtaWxpZmVf_size_16_color_FFFFFF_t_70 2]: /images/20220216/dc0753d482f7410497639c2df464a767.png

unity+ndk+android+.so+apk

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