diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
new file mode 100644
index 0000000..1dd6e53
--- /dev/null
+++ b/app/build.gradle
@@ -0,0 +1,59 @@
+plugins {
+ id 'com.android.application'
+}
+
+android {
+ namespace 'com.example.jnidemoapp'
+ compileSdk 33
+
+ defaultConfig {
+ applicationId "com.example.jnidemoapp"
+ minSdk 28
+ targetSdk 33
+ versionCode 1
+ versionName "1.0"
+
+ // 指定需要支持的 ABI 架构
+ ndk {
+ abiFilters "x86", "x86_64", "armeabi-v7a", "arm64-v8a"
+ }
+
+ externalNativeBuild {
+ cmake {
+ cppFlags "" // 可以添加 C++ 编译标志
+ }
+ }
+
+ testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+ }
+ }
+ compileOptions {
+ sourceCompatibility JavaVersion.VERSION_1_8
+ targetCompatibility JavaVersion.VERSION_1_8
+ }
+ externalNativeBuild {
+ cmake {
+ path file('src/main/cpp/CMakeLists.txt')
+ version '3.22.1'
+ }
+ }
+ buildFeatures {
+ viewBinding true
+ }
+}
+
+dependencies {
+
+ implementation 'androidx.appcompat:appcompat:1.4.1'
+ implementation 'com.google.android.material:material:1.5.0'
+ implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+ testImplementation 'junit:junit:4.13.2'
+ androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+ androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}
\ No newline at end of file
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/app/src/androidTest/java/com/example/jnidemoapp/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/example/jnidemoapp/ExampleInstrumentedTest.java
new file mode 100644
index 0000000..99ad0b2
--- /dev/null
+++ b/app/src/androidTest/java/com/example/jnidemoapp/ExampleInstrumentedTest.java
@@ -0,0 +1,26 @@
+package com.example.jnidemoapp;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see Testing documentation
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+ @Test
+ public void useAppContext() {
+ // Context of the app under test.
+ Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+ assertEquals("com.example.jnidemoapp", appContext.getPackageName());
+ }
+}
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..f59bf65
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1,27 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/src/main/cpp/CMakeLists.txt b/app/src/main/cpp/CMakeLists.txt
new file mode 100644
index 0000000..08d77c2
--- /dev/null
+++ b/app/src/main/cpp/CMakeLists.txt
@@ -0,0 +1,48 @@
+# 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 3.22.1)
+
+# Declares and names the project.
+
+project("jnidemoapp")
+
+# 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.
+ jnidemoapp
+
+ # 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.
+ jnidemoapp
+
+ # Links the target library to the log library
+ # included in the NDK.
+ ${log-lib})
\ No newline at end of file
diff --git a/app/src/main/cpp/native-lib.cpp b/app/src/main/cpp/native-lib.cpp
new file mode 100644
index 0000000..6387a11
--- /dev/null
+++ b/app/src/main/cpp/native-lib.cpp
@@ -0,0 +1,10 @@
+#include
+#include
+
+extern "C" JNIEXPORT jstring JNICALL
+Java_com_example_jnidemoapp_SecondActivity_stringFromJNI(
+ JNIEnv* env,
+ jobject /* this */) {
+ std::string hello = "Hello from C++";
+ return env->NewStringUTF(hello.c_str());
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/jnidemoapp/MainActivity.java b/app/src/main/java/com/example/jnidemoapp/MainActivity.java
new file mode 100644
index 0000000..641577c
--- /dev/null
+++ b/app/src/main/java/com/example/jnidemoapp/MainActivity.java
@@ -0,0 +1,25 @@
+package com.example.jnidemoapp;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import androidx.appcompat.app.AppCompatActivity;
+
+public class MainActivity extends AppCompatActivity {
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_main);
+
+ // 页面跳转按钮
+ Button button = findViewById(R.id.button_go_to_second);
+ button.setOnClickListener(new View.OnClickListener() {
+ @Override
+ public void onClick(View v) {
+ Intent intent = new Intent(MainActivity.this, SecondActivity.class);
+ startActivity(intent);
+ }
+ });
+ }
+}
diff --git a/app/src/main/java/com/example/jnidemoapp/SecondActivity.java b/app/src/main/java/com/example/jnidemoapp/SecondActivity.java
new file mode 100644
index 0000000..67e31f9
--- /dev/null
+++ b/app/src/main/java/com/example/jnidemoapp/SecondActivity.java
@@ -0,0 +1,26 @@
+package com.example.jnidemoapp;
+
+import android.os.Bundle;
+import android.widget.TextView;
+import androidx.appcompat.app.AppCompatActivity;
+
+public class SecondActivity extends AppCompatActivity {
+
+ // 加载本地库
+ static {
+ System.loadLibrary("jnidemoapp");
+ }
+
+ // 声明一个本地方法
+ public native String stringFromJNI();
+
+ @Override
+ protected void onCreate(Bundle savedInstanceState) {
+ super.onCreate(savedInstanceState);
+ setContentView(R.layout.activity_second);
+
+ // 显示 JNI 返回的字符串
+ TextView textView = findViewById(R.id.text_jni_string);
+ textView.setText(stringFromJNI());
+ }
+}
diff --git a/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 0000000..2b068d1
--- /dev/null
+++ b/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,30 @@
+
+
+
+
+