From 02a849272a76e8d3a0069357350dc538ed4e97d5 Mon Sep 17 00:00:00 2001
From: PanZhiyue <202422280902@std.uestc.edu.cn>
Date: Tue, 17 Dec 2024 22:12:06 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=20README.md?=
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安卓APP.md => README.md | 378 ++++++++++++++++++++--------------------
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rename 安卓APP.md => README.md (96%)
diff --git a/安卓APP.md b/README.md
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rename from 安卓APP.md
rename to README.md
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--- a/安卓APP.md
+++ b/README.md
@@ -1,190 +1,190 @@
-# 安卓APP
-
-## 目的
-
-1. 实现页面按钮跳转页面
-2. 点击按钮后，页面显示来自JNI的字符串
-
-## 实验步骤
-
-### 1. 准备开发环境
-
-- Android Studio
-- JDK
-- NDK（创建项目时会自动部署）
-- CMake（创建项目时会自动部署）
-
-### 2. 创建一个原生C++安卓项目
-
-
-
-> 部署原生C++安卓项目时，路径中不能有空格
->
-> 使用了API 28: Android 9.0
-
-### 3. 主页面添加按钮
-
-在`MainActivity.java`中添加一个按钮，点击后跳转到`SecondActivity`
-
-```
-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);
- }
- });
- }
-}
-```
-
-### 4. 创建SecondActivity.java
-
-新建`SecondActivity.java`文件，显示来自JNI的字符串
-
-```
-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());
- }
-}
-```
-
-### 5. 调整界面布局
-
-- 在`activity_main.xml`中添加一个按钮：
- ```
-
-
-
-
-
- ```
-
-- 在 `activity_second.xml` 添加一个 `TextView`：
- ```
-
-
-
-
-
- ```
-
-### 6. 添加JNI字符串
-
-- 配置`CMakeLists.txt`文件
-
- ```
- # 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})
- ```
-
- > 这里的库名称需要和SecondActivity.java中的System.loadLibrary函数中的库名称对应
-
-### 7. 编译运行模拟器，并测试
-
-- 起始页面：
-
- 
-
-- 点击按钮后：
-
+# 安卓APP
+
+## 目的
+
+1. 实现页面按钮跳转页面
+2. 点击按钮后，页面显示来自JNI的字符串
+
+## 实验步骤
+
+### 1. 准备开发环境
+
+- Android Studio
+- JDK
+- NDK（创建项目时会自动部署）
+- CMake（创建项目时会自动部署）
+
+### 2. 创建一个原生C++安卓项目
+
+
+
+> 部署原生C++安卓项目时，路径中不能有空格
+>
+> 使用了API 28: Android 9.0
+
+### 3. 主页面添加按钮
+
+在`MainActivity.java`中添加一个按钮，点击后跳转到`SecondActivity`
+
+```
+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);
+ }
+ });
+ }
+}
+```
+
+### 4. 创建SecondActivity.java
+
+新建`SecondActivity.java`文件，显示来自JNI的字符串
+
+```
+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());
+ }
+}
+```
+
+### 5. 调整界面布局
+
+- 在`activity_main.xml`中添加一个按钮：
+ ```
+
+
+
+
+
+ ```
+
+- 在 `activity_second.xml` 添加一个 `TextView`：
+ ```
+
+
+
+
+
+ ```
+
+### 6. 添加JNI字符串
+
+- 配置`CMakeLists.txt`文件
+
+ ```
+ # 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})
+ ```
+
+ > 这里的库名称需要和SecondActivity.java中的System.loadLibrary函数中的库名称对应
+
+### 7. 编译运行模拟器，并测试
+
+- 起始页面：
+
+ 
+
+- 点击按钮后：
+
\ No newline at end of file