Unity调用Android aar实现Native崩溃

知识记录

使用Android Studio生成aar

在Android里实现Native层崩溃

Unity中调用Android aar中的方法

Android Studio生成aar

1. 新建Native C++项目

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2. 新建Android Module

在Porject模式的项目中，新建Module-Android Library
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3. 在对应Module下新建Java Class

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利用Android Studio的提示生成一个对应的JNI代码（在后面的步骤中可以参考，适用于不会写JNI的小白）

实现Native崩溃

1.利用Android Studio自动生成JNI的相关代码

在main目录下新建JNI Folder
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在JNI目录下新建CMakeLists.txt，拷贝如下内容（记得修改Project的内容project(“crashlibrary”)）

# For more information about using CMake with Android Studio, read the
# documentation: https://d.android.com/studio/projects/add-native-code.html

# Sets the minimum version of CMake required to build the native library.

cmake_minimum_required(VERSION 3.10.2)

# Declares and names the project.

project("crashlibrary")

# Creates and names a library, sets it as either STATIC
# or SHARED, and provides the relative paths to its source code.
# You can define multiple libraries, and CMake builds them for you.
# Gradle automatically packages shared libraries with your APK.

add_library( # Sets the name of the library.
        native-lib

        # Sets the library as a shared library.
        SHARED

        # Provides a relative path to your source file(s).
        native-lib.cpp )

# Searches for a specified prebuilt library and stores the path as a
# variable. Because CMake includes system libraries in the search path by
# default, you only need to specify the name of the public NDK library
# you want to add. CMake verifies that the library exists before
# completing its build.

find_library( # Sets the name of the path variable.
        log-lib

        # Specifies the name of the NDK library that
        # you want CMake to locate.
        log )

# Specifies libraries CMake should link to your target library. You
# can link multiple libraries, such as libraries you define in this
# build script, prebuilt third-party libraries, or system libraries.

target_link_libraries( # Specifies the target library.
        native-lib

        # Links the target library to the log library
        # included in the NDK.
        ${log-lib} )

在JNI目录下新建Native-lib.cpp，可以参考系统生成的JNI代码定义自己的JNI代码，并引入Jni.h的头文件。
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#include "XXX/XXX/jni.h"//这里修改成自己的jni地址

extern "C"
JNIEXPORT jint JNICALL
Java_com_florence_mylibrary_MyClass_MyCrash(JNIEnv *env, jclass clazz) {
    // TODO: implement MyCrash()
}

利用指针地址错误制造Crash
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修改build.gradle的内容

2.编译Aar

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在Unity中调用aar中的方法

在Unity中添加aar，并在脚本中调用aar。
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void OnGUI()
	{
		if (GUI.Button(new Rect(100,300, 300, 80), "<size=30>Make Crash</size>"))
		{
			androidJavaObject = new AndroidJavaObject("com.florence.mylibrary.MyClass");
			androidJavaObject.CallStatic<int>("MyCrash");

		}	
	}

生成Android APK，在手机运行点击Make Crash按钮，触发native崩溃。
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参考链接

关于如何修改build.gradle的文件：https://blog.csdn.net/a673544319/article/details/103530401
在Unity里面调用Java的方法：https://www.cnblogs.com/ezhar/p/12883771.html
触发Android Crash：https://blog.csdn.net/ta893115871/article/details/108991277
关于AndroidJavaObject的使用：https://blog.csdn.net/final5788/article/details/96596679

Unity调用Android arr实现Native崩溃