这是一次长久的提交：

1. 应用界面增加了返回主页的按钮
2. 修复了gif渲染内存泄漏的严重bug
3. 将PetDao当中的cJSON API替换为cpp_json，完美通过测试
4. 整合已经实现的各种上层建筑，实现了一个宠物对话基本业务应用，用于样品测试展示用
5. 重构了音频播放类，使其更modern，更加便于移植和拓展

Bionic_Core/ToolsClass/SDFileManager/SDFileManager.cpp

@@ -47,7 +47,7 @@ void SDFileManager::tryInitSDCard() {
 }
 
 
-bool SDFileManager::writeFileSync(const char* path, const char* data) {
+bool SDFileManager::writeFileSync(const char* path, const char* data, const size_t len, const char* type) {
     std::lock_guard<std::mutex> lock(file_operation_mutex);
 
     if (!is_initialized) {
@@ -55,8 +55,20 @@ bool SDFileManager::writeFileSync(const char* path, const char* data) {
         return false;
     }
 
-    esp_err_t result = s_example_write_file(path, const_cast<char*>(data));
-    return result == ESP_OK;
+    ESP_LOGI("SDFileManager", "Opening file %s", path);
+    FILE *f = fopen(path, type);
+    if (f == nullptr) {
+        ESP_LOGE("SDFileManager", "Failed to open file for writing");
+        return ESP_FAIL;
+    }
+    const size_t written = fwrite(data, 1, len, f);
+    fclose(f);
+    if (written != len) {
+        ESP_LOGE("SDFileManager", "Only %zu/%zu bytes written", written, len);
+        return ESP_FAIL;
+    }
+    ESP_LOGI("SDFileManager", "File written (%zu bytes)", written);
+    return true;
 }
 
 std::string SDFileManager::readFileSync(const char* path) {
@@ -133,9 +145,9 @@ std::vector<std::string> SDFileManager::listFilesSync(const char* directory, con
         return {};
     }
 
-    const int max_files = 50;
+    constexpr int max_files = 50;
     char file_names[max_files][100];
-    uint16_t file_count = Folder_retrieval(directory, extension, file_names, max_files);
+    const uint16_t file_count = Folder_retrieval(directory, extension, file_names, max_files);
 
     std::vector<std::string> files;
     for (uint16_t i = 0; i < file_count; ++i) {
@@ -163,12 +175,12 @@ bool SDFileManager::closeFileSync(FILE* file) {
     return false;
 }
 
-void SDFileManager::asyncWriteFile(const char* path, const char* data, WriteCallback callback) {
+void SDFileManager::asyncWriteFile(const char* path, const char* data, const size_t len, const char* type, WriteCallback callback) {
     ThreadConfig config = getThreadConfig("write_file");
 
     ThreadManager::createThread(config, [this, path = std::string(path),
-                                        data = std::string(data), callback]() {
-        bool success = this->writeFileSync(path.c_str(), data.c_str());
+                                        data = std::string(data), callback, type, len]() {
+        const bool success = this->writeFileSync(path.c_str(), data.c_str(), len, type);
         if (callback) {
             callback(success, path.c_str());
         }

Bionic_Core/ToolsClass/SDFileManager/SDFileManager.h

@@ -34,9 +34,11 @@ public:
      * 同步写入文件
      * @param path 文件路径
      * @param data 数据
+     * @param len  数据长度
+     * @param type 文件类型
      * @return 是否成功
      */
-    bool writeFileSync(const char* path, const char* data);
+    bool writeFileSync(const char* path, const char* data, const size_t len, const char* type);
     /**
      * 同步读取文件
      * @param path 文件路径
@@ -79,9 +81,11 @@ public:
      * 异步写入文件
      * @param path      文件路径
      * @param data      数据
+     * @param len       数据长度
+     * @param type      文件类型
      * @param callback  回调函数
      */
-    void asyncWriteFile(const char* path, const char* data, WriteCallback callback = nullptr);
+    void asyncWriteFile(const char* path, const char* data, const size_t len, const char* type, WriteCallback callback = nullptr);
     /**
      * 异步读取文件
      * @param path      文件路径