11.16 首页发布

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/activity/ChatActivity.java

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+package com.startsmake.llrisetabbardemo.activity;
+
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.ImageButton;
+import android.widget.ImageView;
+import android.widget.TextView;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import com.startsmake.llrisetabbardemo.R;
+import com.startsmake.llrisetabbardemo.adapter.ChatMessageAdapter;
+import com.startsmake.llrisetabbardemo.model.ChatMessage;
+import java.util.ArrayList;
+import java.util.List;
+
+public class ChatActivity extends AppCompatActivity {
+
+    private TextView tvTitle;
+    private ImageView ivBack;
+    private RecyclerView rvChatMessages;
+    private EditText etMessage;
+    private ImageButton btnSend;
+
+    private ChatMessageAdapter chatAdapter;
+    private List<ChatMessage> messageList;
+    private String chatTitle;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_chat);
+
+        // 获取传递过来的聊天标题
+        chatTitle = getIntent().getStringExtra("chat_title");
+        if (chatTitle == null) {
+            chatTitle = "聊天";
+        }
+
+        initView();
+        initData();
+        setupClickListeners();
+    }
+
+    private void initView() {
+        tvTitle = findViewById(R.id.tvTitle);
+        ivBack = findViewById(R.id.ivBack);
+        rvChatMessages = findViewById(R.id.rvChatMessages);
+        etMessage = findViewById(R.id.etMessage);
+        btnSend = findViewById(R.id.btnSend);
+
+        tvTitle.setText(chatTitle);
+    }
+
+    private void initData() {
+        messageList = new ArrayList<>();
+
+        // 添加一些初始消息
+        if ("通知消息".equals(chatTitle)) {
+            messageList.add(new ChatMessage("系统", "红包到账提醒", "10:30", false));
+            messageList.add(new ChatMessage("我", "收到了，谢谢！", "10:31", true));
+        } else if ("刑事组之虎".equals(chatTitle)) {
+            messageList.add(new ChatMessage("刑事组之虎", "快给ta一个评价吧～", "04-19 14:20", false));
+            messageList.add(new ChatMessage("我", "已经评价了，商品很不错！", "04-19 14:25", true));
+        } else {
+            messageList.add(new ChatMessage(chatTitle, "你好！", "刚刚", false));
+        }
+
+        chatAdapter = new ChatMessageAdapter(this, messageList);
+        rvChatMessages.setLayoutManager(new LinearLayoutManager(this));
+        rvChatMessages.setAdapter(chatAdapter);
+
+        // 滚动到底部
+        rvChatMessages.scrollToPosition(messageList.size() - 1);
+    }
+
+    private void setupClickListeners() {
+        // 返回按钮
+        ivBack.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                finish();
+            }
+        });
+
+        // 发送按钮
+        btnSend.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                sendMessage();
+            }
+        });
+    }
+
+    private void sendMessage() {
+        String message = etMessage.getText().toString().trim();
+        if (!TextUtils.isEmpty(message)) {
+            // 添加新消息到列表
+            ChatMessage newMessage = new ChatMessage("我", message, "刚刚", true);
+            messageList.add(newMessage);
+            chatAdapter.notifyItemInserted(messageList.size() - 1);
+
+            // 清空输入框
+            etMessage.setText("");
+
+            // 滚动到底部
+            rvChatMessages.scrollToPosition(messageList.size() - 1);
+
+            // 模拟对方回复（可选）
+            simulateReply(message);
+        }
+    }
+
+    private void simulateReply(String userMessage) {
+        // 延迟模拟回复
+        rvChatMessages.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                String reply = generateReply(userMessage);
+                ChatMessage replyMessage = new ChatMessage(chatTitle, reply, "刚刚", false);
+                messageList.add(replyMessage);
+                chatAdapter.notifyItemInserted(messageList.size() - 1);
+                rvChatMessages.scrollToPosition(messageList.size() - 1);
+            }
+        }, 1000);
+    }
+
+    private String generateReply(String userMessage) {
+        // 简单的回复逻辑
+        if (userMessage.contains("你好") || userMessage.contains("在吗")) {
+            return "在的，有什么可以帮您？";
+        } else if (userMessage.contains("价格") || userMessage.contains("多少钱")) {
+            return "这个商品价格是xxx元";
+        } else if (userMessage.contains("谢谢")) {
+            return "不客气！";
+        } else {
+            return "收到您的消息了！";
+        }
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/activity/ProductDetailActivity.java

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+package com.startsmake.llrisetabbardemo.activity;
+
+import android.os.Bundle;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.FragmentTransaction;
+
+import com.startsmake.llrisetabbardemo.R;
+import com.startsmake.llrisetabbardemo.fragment.ItemDetailFragment;
+import com.startsmake.llrisetabbardemo.model.Item;
+import com.startsmake.llrisetabbardemo.model.Product;
+import manager.DataManager;
+
+public class ProductDetailActivity extends AppCompatActivity {
+
+    public static final String EXTRA_PRODUCT = "extra_product";
+    public static final String EXTRA_ITEM = "extra_item";
+    public static final String EXTRA_PRODUCT_ID = "extra_product_id";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_product_detail);
+
+        // 获取传递的数据
+        Product product = (Product) getIntent().getSerializableExtra(EXTRA_PRODUCT);
+        Item item = (Item) getIntent().getSerializableExtra(EXTRA_ITEM);
+        String productId = getIntent().getStringExtra(EXTRA_PRODUCT_ID);
+
+        // 根据不同的数据来源创建Fragment
+        Item detailItem = null;
+
+        if (item != null) {
+            // 如果直接传递了Item对象
+            detailItem = item;
+        } else if (product != null) {
+            // 如果传递了Product对象，转换为Item
+            detailItem = convertProductToItem(product);
+        } else if (productId != null) {
+            // 如果传递了商品ID，从DataManager查找
+            DataManager dataManager = DataManager.getInstance();
+            Item foundItem = dataManager.getItemById(productId);
+            if (foundItem != null) {
+                detailItem = foundItem;
+            } else {
+                // 如果找不到，尝试从Product列表查找并转换
+                for (Product p : dataManager.getAllProducts()) {
+                    if (p.getId().equals(productId)) {
+                        detailItem = convertProductToItem(p);
+                        break;
+                    }
+                }
+            }
+        }
+
+        if (detailItem != null) {
+            // 显示商品详情Fragment
+            showItemDetailFragment(detailItem);
+        } else {
+            // 处理数据加载失败的情况
+            finish();
+        }
+    }
+
+    private void showItemDetailFragment(Item item) {
+        ItemDetailFragment fragment = ItemDetailFragment.newInstance(item);
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+        transaction.replace(R.id.fragment_container, fragment);
+        transaction.commit();
+    }
+
+    /**
+     * 将Product对象转换为Item对象
+     */
+    private Item convertProductToItem(Product product) {
+        Item item = new Item();
+        item.setId(product.getId());
+        item.setTitle(product.getName());
+        item.setDescription(product.getDescription());
+        item.setCategory(product.getCategory());
+        item.setPrice(product.getPrice());
+        item.setLocation(product.getLocation());
+        item.setContact(product.getContact());
+        item.setWantCount(product.getWantCount());
+
+        // 设置默认发布时间（如果没有的话）
+        if (item.getPublishTime() == 0) {
+            item.setPublishTime(System.currentTimeMillis());
+        }
+
+        return item;
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/adapter/ChatMessageAdapter.java

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+package com.startsmake.llrisetabbardemo.adapter;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+import com.startsmake.llrisetabbardemo.R;
+import com.startsmake.llrisetabbardemo.model.ChatMessage;
+import java.util.List;
+
+public class ChatMessageAdapter extends RecyclerView.Adapter<ChatMessageAdapter.ViewHolder> {
+
+    private Context context;
+    private List<ChatMessage> messageList;
+
+    public ChatMessageAdapter(Context context, List<ChatMessage> messageList) {
+        this.context = context;
+        this.messageList = messageList;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(context).inflate(R.layout.item_chat_message, parent, false);
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        ChatMessage message = messageList.get(position);
+
+        if (message.isMe()) {
+            // 自己发送的消息 - 右侧显示
+            holder.layoutLeft.setVisibility(View.GONE);
+            holder.layoutRight.setVisibility(View.VISIBLE);
+            holder.tvRightMessage.setText(message.getContent());
+            holder.tvRightTime.setText(message.getTime());
+        } else {
+            // 对方发送的消息 - 左侧显示
+            holder.layoutRight.setVisibility(View.GONE);
+            holder.layoutLeft.setVisibility(View.VISIBLE);
+            holder.tvLeftMessage.setText(message.getContent());
+            holder.tvLeftTime.setText(message.getTime());
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return messageList.size();
+    }
+
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        LinearLayout layoutLeft;
+        LinearLayout layoutRight;
+        TextView tvLeftMessage;
+        TextView tvRightMessage;
+        TextView tvLeftTime;
+        TextView tvRightTime;
+
+        public ViewHolder(@NonNull View itemView) {
+            super(itemView);
+            layoutLeft = itemView.findViewById(R.id.layoutLeft);
+            layoutRight = itemView.findViewById(R.id.layoutRight);
+            tvLeftMessage = itemView.findViewById(R.id.tvLeftMessage);
+            tvRightMessage = itemView.findViewById(R.id.tvRightMessage);
+            tvLeftTime = itemView.findViewById(R.id.tvLeftTime);
+            tvRightTime = itemView.findViewById(R.id.tvRightTime);
+        }
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/adapter/ImageAdapter.java

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+package com.startsmake.llrisetabbardemo.adapter;
+
+import android.content.Context;
+import android.net.Uri;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.ImageView;
+
+import com.bumptech.glide.Glide;
+import com.startsmake.llrisetabbardemo.R;
+
+import java.util.List;
+
+public class ImageAdapter extends BaseAdapter {
+
+    private Context context;
+    private List<Uri> imageUris;
+    private static final int MAX_IMAGES = 9;
+
+    public ImageAdapter(Context context, List<Uri> imageUris) {
+        this.context = context;
+        this.imageUris = imageUris;
+    }
+
+    @Override
+    public int getCount() {
+        return Math.min(imageUris.size() + 1, MAX_IMAGES);
+    }
+
+    @Override
+    public Object getItem(int position) {
+        if (position < imageUris.size()) {
+            return imageUris.get(position);
+        }
+        return null;
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ViewHolder holder;
+        if (convertView == null) {
+            convertView = LayoutInflater.from(context).inflate(R.layout.item_image, parent, false);
+            holder = new ViewHolder();
+            holder.imageView = convertView.findViewById(R.id.imageView);
+            holder.deleteButton = convertView.findViewById(R.id.btnDelete);
+            convertView.setTag(holder);
+        } else {
+            holder = (ViewHolder) convertView.getTag();
+        }
+
+        if (position < imageUris.size()) {
+            // 显示已选择的图片
+            Uri imageUri = imageUris.get(position);
+            Glide.with(context)
+                    .load(imageUri)
+                    .placeholder(android.R.drawable.ic_menu_gallery) // 使用系统图标作为占位符
+                    .into(holder.imageView);
+
+            holder.deleteButton.setVisibility(View.VISIBLE);
+            holder.deleteButton.setOnClickListener(v -> {
+                imageUris.remove(position);
+                notifyDataSetChanged();
+            });
+        } else {
+            // 显示添加按钮
+            holder.imageView.setImageResource(android.R.drawable.ic_input_add); // 使用系统图标
+            holder.deleteButton.setVisibility(View.GONE);
+        }
+
+        return convertView;
+    }
+
+    static class ViewHolder {
+        ImageView imageView;
+        ImageView deleteButton;
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/adapter/MessageAdapter.java

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+package com.startsmake.llrisetabbardemo.adapter;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+import androidx.annotation.NonNull;
+import androidx.recyclerview.widget.RecyclerView;
+import com.startsmake.llrisetabbardemo.R;
+import com.startsmake.llrisetabbardemo.model.MessageItem;
+import java.util.List;
+
+public class MessageAdapter extends RecyclerView.Adapter<MessageAdapter.ViewHolder> {
+
+    private Context context;
+    private List<MessageItem> messageList;
+    private OnItemClickListener onItemClickListener;
+
+    public MessageAdapter(Context context, List<MessageItem> messageList) {
+        this.context = context;
+        this.messageList = messageList;
+    }
+
+    // 添加点击监听接口
+    public interface OnItemClickListener {
+        void onItemClick(MessageItem item);
+    }
+
+    public void setOnItemClickListener(OnItemClickListener listener) {
+        this.onItemClickListener = listener;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        View view = LayoutInflater.from(context).inflate(R.layout.item_message, parent, false);
+        return new ViewHolder(view);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        MessageItem item = messageList.get(position);
+
+        // 设置默认白色头像背景
+        holder.ivAvatar.setBackgroundResource(R.drawable.bg_avatar_placeholder);
+
+        holder.tvTitle.setText(item.getTitle());
+        holder.tvContent.setText(item.getContent());
+        holder.tvTime.setText(item.getTime());
+
+        // 未读消息数量
+        if (item.getUnreadCount() > 0) {
+            holder.tvUnreadCount.setVisibility(View.VISIBLE);
+            holder.tvUnreadCount.setText(String.valueOf(item.getUnreadCount()));
+        } else {
+            holder.tvUnreadCount.setVisibility(View.GONE);
+        }
+
+        // 官方标识
+        if (item.isOfficial()) {
+            holder.ivOfficial.setVisibility(View.VISIBLE);
+        } else {
+            holder.ivOfficial.setVisibility(View.GONE);
+        }
+
+        // 添加点击事件
+        holder.itemView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                if (onItemClickListener != null) {
+                    onItemClickListener.onItemClick(item);
+                }
+            }
+        });
+    }
+
+    @Override
+    public int getItemCount() {
+        return messageList.size();
+    }
+
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        ImageView ivAvatar;
+        TextView tvTitle;
+        TextView tvContent;
+        TextView tvTime;
+        TextView tvUnreadCount;
+        ImageView ivOfficial;
+
+        public ViewHolder(@NonNull View itemView) {
+            super(itemView);
+            ivAvatar = itemView.findViewById(R.id.ivAvatar);
+            tvTitle = itemView.findViewById(R.id.tvTitle);
+            tvContent = itemView.findViewById(R.id.tvContent);
+            tvTime = itemView.findViewById(R.id.tvTime);
+            tvUnreadCount = itemView.findViewById(R.id.tvUnreadCount);
+            ivOfficial = itemView.findViewById(R.id.ivOfficial);
+        }
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/api/ApiClient.java

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+package com.startsmake.llrisetabbardemo.api;
+
+import okhttp3.OkHttpClient;
+import retrofit2.Retrofit;
+import retrofit2.converter.gson.GsonConverterFactory;
+
+import java.util.concurrent.TimeUnit;
+
+public class ApiClient {
+    private static final String BASE_URL = "http://localhost:8080/";
+    private static Retrofit retrofit = null;
+
+    public static Retrofit getClient() {
+        if (retrofit == null) {
+            OkHttpClient client = new OkHttpClient.Builder()
+                    .connectTimeout(30, TimeUnit.SECONDS)
+                    .readTimeout(30, TimeUnit.SECONDS)
+                    .writeTimeout(30, TimeUnit.SECONDS)
+                    .build();
+
+            retrofit = new Retrofit.Builder()
+                    .baseUrl(BASE_URL)
+                    .client(client)
+                    .addConverterFactory(GsonConverterFactory.create())
+                    .build();
+        }
+        return retrofit;
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/api/ApiService.java

@@ -0,0 +1,43 @@
+package com.startsmake.llrisetabbardemo.api;
+
+import com.startsmake.llrisetabbardemo.api.response.BaseResponse;
+import com.startsmake.llrisetabbardemo.api.response.ProductResponse;
+import com.startsmake.llrisetabbardemo.api.response.UserResponse;
+
+import java.util.List;
+
+import retrofit2.Call;
+import retrofit2.http.Field;
+import retrofit2.http.FormUrlEncoded;
+import retrofit2.http.GET;
+import retrofit2.http.POST;
+import retrofit2.http.Query;
+
+public interface ApiService {
+    // 获取API状态
+    @GET("api")
+    Call<BaseResponse> getApiStatus();
+
+    // 用户登录
+    @FormUrlEncoded
+    @POST("api/login")
+    Call<UserResponse> login(@Field("phone") String phone, @Field("password") String password);
+
+    // 用户注册
+    @FormUrlEncoded
+    @POST("api/register")
+    Call<UserResponse> register(@Field("phone") String phone, @Field("password") String password,
+                               @Field("username") String username);
+
+    // 获取商品列表
+    @GET("api/products")
+    Call<BaseResponse<List<ProductResponse>>> getProducts();
+
+    // 搜索商品
+    @GET("api/products/search")
+    Call<BaseResponse<List<ProductResponse>>> searchProducts(@Query("keyword") String keyword);
+
+    // 获取商品详情
+    @GET("api/products/detail")
+    Call<BaseResponse<ProductResponse>> getProductDetail(@Query("id") String productId);
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/api/response/BaseResponse.java

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+package com.startsmake.llrisetabbardemo.api.response;
+
+import com.google.gson.annotations.SerializedName;
+
+public class BaseResponse<T> {
+    @SerializedName("status")
+    private String status;
+
+    @SerializedName("message")
+    private String message;
+
+    @SerializedName("data")
+    private T data;
+
+    // Getters and Setters
+    public String getStatus() {
+        return status;
+    }
+
+    public void setStatus(String status) {
+        this.status = status;
+    }
+
+    public String getMessage() {
+        return message;
+    }
+
+    public void setMessage(String message) {
+        this.message = message;
+    }
+
+    public T getData() {
+        return data;
+    }
+
+    public void setData(T data) {
+        this.data = data;
+    }
+
+    public boolean isSuccess() {
+        return "success".equals(status);
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/api/response/ProductResponse.java

@@ -0,0 +1,107 @@
+package com.startsmake.llrisetabbardemo.api.response;
+
+import com.google.gson.annotations.SerializedName;
+
+import java.util.List;
+
+public class ProductResponse {
+    @SerializedName("id")
+    private String id;
+
+    @SerializedName("title")
+    private String title;
+
+    @SerializedName("description")
+    private String description;
+
+    @SerializedName("category")
+    private String category;
+
+    @SerializedName("price")
+    private double price;
+
+    @SerializedName("image_urls")
+    private List<String> imageUrls;
+
+    @SerializedName("contact")
+    private String contact;
+
+    @SerializedName("publish_time")
+    private long publishTime;
+
+    @SerializedName("seller_id")
+    private String sellerId;
+
+    // Getters and Setters
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public void setTitle(String title) {
+        this.title = title;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public String getCategory() {
+        return category;
+    }
+
+    public void setCategory(String category) {
+        this.category = category;
+    }
+
+    public double getPrice() {
+        return price;
+    }
+
+    public void setPrice(double price) {
+        this.price = price;
+    }
+
+    public List<String> getImageUrls() {
+        return imageUrls;
+    }
+
+    public void setImageUrls(List<String> imageUrls) {
+        this.imageUrls = imageUrls;
+    }
+
+    public String getContact() {
+        return contact;
+    }
+
+    public void setContact(String contact) {
+        this.contact = contact;
+    }
+
+    public long getPublishTime() {
+        return publishTime;
+    }
+
+    public void setPublishTime(long publishTime) {
+        this.publishTime = publishTime;
+    }
+
+    public String getSellerId() {
+        return sellerId;
+    }
+
+    public void setSellerId(String sellerId) {
+        this.sellerId = sellerId;
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/api/response/UserResponse.java

@@ -0,0 +1,52 @@
+package com.startsmake.llrisetabbardemo.api.response;
+
+import com.google.gson.annotations.SerializedName;
+
+public class UserResponse extends BaseResponse<UserResponse.UserInfo> {
+    public static class UserInfo {
+        @SerializedName("id")
+        private String id;
+
+        @SerializedName("username")
+        private String username;
+
+        @SerializedName("phone")
+        private String phone;
+
+        @SerializedName("token")
+        private String token;
+
+        // Getters and Setters
+        public String getId() {
+            return id;
+        }
+
+        public void setId(String id) {
+            this.id = id;
+        }
+
+        public String getUsername() {
+            return username;
+        }
+
+        public void setUsername(String username) {
+            this.username = username;
+        }
+
+        public String getPhone() {
+            return phone;
+        }
+
+        public void setPhone(String phone) {
+            this.phone = phone;
+        }
+
+        public String getToken() {
+            return token;
+        }
+
+        public void setToken(String token) {
+            this.token = token;
+        }
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/decoration/GridSpacingItemDecoration.java

@@ -0,0 +1,40 @@
+package com.startsmake.llrisetabbardemo.decoration;
+
+import android.graphics.Rect;
+import android.view.View;
+import androidx.recyclerview.widget.RecyclerView;
+
+public class GridSpacingItemDecoration extends RecyclerView.ItemDecoration {
+
+    private int spanCount;
+    private int spacing;
+    private boolean includeEdge;
+
+    public GridSpacingItemDecoration(int spanCount, int spacing, boolean includeEdge) {
+        this.spanCount = spanCount;
+        this.spacing = spacing;
+        this.includeEdge = includeEdge;
+    }
+
+    @Override
+    public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
+        int position = parent.getChildAdapterPosition(view);
+        int column = position % spanCount;
+
+        if (includeEdge) {
+            outRect.left = spacing - column * spacing / spanCount;
+            outRect.right = (column + 1) * spacing / spanCount;
+
+            if (position < spanCount) {
+                outRect.top = spacing;
+            }
+            outRect.bottom = spacing;
+        } else {
+            outRect.left = column * spacing / spanCount;
+            outRect.right = spacing - (column + 1) * spacing / spanCount;
+            if (position >= spanCount) {
+                outRect.top = spacing;
+            }
+        }
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/fragment/ItemDetailFragment.java

@@ -0,0 +1,135 @@
+package com.startsmake.llrisetabbardemo.fragment;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+import com.startsmake.llrisetabbardemo.R;
+import com.startsmake.llrisetabbardemo.model.Item;
+import com.startsmake.llrisetabbardemo.model.Product;
+import manager.DataManager;
+
+public class ItemDetailFragment extends Fragment {
+
+    private static final String ARG_ITEM = "item";
+    private static final String ARG_PRODUCT = "product";
+
+    private Item item;
+    private Product product;
+
+    // 使用Item对象的构造方法
+    public static ItemDetailFragment newInstance(Item item) {
+        ItemDetailFragment fragment = new ItemDetailFragment();
+        Bundle args = new Bundle();
+        args.putSerializable(ARG_ITEM, item);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    // 使用Product对象的构造方法
+    public static ItemDetailFragment newInstance(Product product) {
+        ItemDetailFragment fragment = new ItemDetailFragment();
+        Bundle args = new Bundle();
+        args.putSerializable(ARG_PRODUCT, product);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            item = (Item) getArguments().getSerializable(ARG_ITEM);
+            product = (Product) getArguments().getSerializable(ARG_PRODUCT);
+
+            // 如果传递的是Product，转换为Item统一处理
+            if (product != null && item == null) {
+                item = convertProductToItem(product);
+            }
+        }
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_item_detail, container, false);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        if (item == null) {
+            Toast.makeText(getContext(), "商品信息加载失败", Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        // 初始化视图
+        ImageView ivItemImage = view.findViewById(R.id.ivItemImage);
+        TextView tvTitle = view.findViewById(R.id.tvTitle);
+        TextView tvPrice = view.findViewById(R.id.tvPrice);
+        TextView tvDescription = view.findViewById(R.id.tvDescription);
+        TextView tvCategory = view.findViewById(R.id.tvCategory);
+        TextView tvLocation = view.findViewById(R.id.tvLocation);
+        TextView tvContact = view.findViewById(R.id.tvContact);
+        TextView tvPublishTime = view.findViewById(R.id.tvPublishTime);
+
+        // 设置商品信息
+        tvTitle.setText(item.getTitle());
+        tvPrice.setText(String.format("¥%.2f", item.getPrice()));
+        tvDescription.setText(item.getDescription());
+        tvCategory.setText("分类：" + item.getCategory());
+        tvLocation.setText("位置：" + item.getLocation());
+        tvContact.setText("联系方式：" + item.getContact());
+
+        // 设置发布时间
+        String time = android.text.format.DateFormat.format("yyyy-MM-dd HH:mm", item.getPublishTime()).toString();
+        tvPublishTime.setText("发布时间：" + time);
+
+        // 加载图片（这里使用第一张图片作为主图）
+        if (item.getImageUrls() != null && !item.getImageUrls().isEmpty()) {
+            // 实际项目中这里应该加载网络图片，这里用占位符
+            ivItemImage.setImageResource(R.mipmap.ic_launcher);
+        } else {
+            // 如果没有图片，使用默认图片
+            ivItemImage.setImageResource(R.mipmap.ic_launcher);
+        }
+
+        // 增加浏览数
+        item.incrementViewCount();
+
+        // 联系卖家按钮
+        view.findViewById(R.id.btnContact).setOnClickListener(v -> {
+            Toast.makeText(getContext(), "联系卖家：" + item.getContact(), Toast.LENGTH_SHORT).show();
+            // 这里可以跳转到聊天界面或拨打电话
+        });
+    }
+
+    /**
+     * 将Product对象转换为Item对象
+     */
+    private Item convertProductToItem(Product product) {
+        Item convertedItem = new Item();
+        convertedItem.setId(product.getId());
+        convertedItem.setTitle(product.getName());
+        convertedItem.setDescription(product.getDescription());
+        convertedItem.setCategory(product.getCategory());
+        convertedItem.setPrice(product.getPrice());
+        convertedItem.setLocation(product.getLocation());
+        convertedItem.setContact(product.getContact());
+        convertedItem.setWantCount(product.getWantCount());
+
+        // 设置默认发布时间
+        convertedItem.setPublishTime(System.currentTimeMillis());
+
+        return convertedItem;
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/fragment/PublishFragment.java

@@ -0,0 +1,268 @@
+package com.startsmake.llrisetabbardemo.fragment;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.GridView;
+import android.widget.Spinner;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+
+import com.startsmake.llrisetabbardemo.R;
+import com.startsmake.llrisetabbardemo.activity.MainActivity;
+import com.startsmake.llrisetabbardemo.adapter.ImageAdapter;
+
+import com.startsmake.llrisetabbardemo.model.Item;
+import com.startsmake.llrisetabbardemo.model.Product;
+import manager.DataManager;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class PublishFragment extends Fragment {
+
+    private static final int REQUEST_CODE_PICK_IMAGES = 1001;
+    private static final int MAX_IMAGE_COUNT = 9;
+
+    private EditText etTitle, etDescription, etPrice, etContact;
+    private Spinner spinnerCategory, spinnerLocation;
+    private GridView gridViewImages;
+    private Button btnPublish;
+
+    private ImageAdapter imageAdapter;
+    private List<Uri> selectedImages = new ArrayList<>();
+
+    public PublishFragment() {
+        // Required empty public constructor
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_publish, container, false);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        initViews(view);
+        setupSpinners();
+        setupImageGrid();
+        setupClickListeners();
+    }
+
+    private void initViews(View view) {
+        etTitle = view.findViewById(R.id.etTitle);
+        etDescription = view.findViewById(R.id.etDescription);
+        etPrice = view.findViewById(R.id.etPrice);
+        etContact = view.findViewById(R.id.etContact);
+        spinnerCategory = view.findViewById(R.id.spinnerCategory);
+        spinnerLocation = view.findViewById(R.id.spinnerLocation);
+        gridViewImages = view.findViewById(R.id.gridViewImages);
+        btnPublish = view.findViewById(R.id.btnPublish);
+    }
+
+    private void setupSpinners() {
+        String[] categories = {"数码产品", "服装鞋帽", "家居日用", "图书文具", "美妆个护", "运动户外", "其他"};
+        ArrayAdapter<String> categoryAdapter = new ArrayAdapter<>(
+                requireContext(), android.R.layout.simple_spinner_item, categories);
+        categoryAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        spinnerCategory.setAdapter(categoryAdapter);
+
+        String[] locations = {"北京", "上海", "广州", "深圳", "杭州", "成都", "武汉", "其他"};
+        ArrayAdapter<String> locationAdapter = new ArrayAdapter<>(
+                requireContext(), android.R.layout.simple_spinner_item, locations);
+        locationAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
+        spinnerLocation.setAdapter(locationAdapter);
+    }
+
+    private void setupImageGrid() {
+        imageAdapter = new ImageAdapter(requireContext(), selectedImages);
+        gridViewImages.setAdapter(imageAdapter);
+    }
+
+    private void setupClickListeners() {
+        gridViewImages.setOnItemClickListener((parent, view, position, id) -> {
+            if (position == selectedImages.size() && selectedImages.size() < MAX_IMAGE_COUNT) {
+                openImagePicker();
+            }
+        });
+
+        btnPublish.setOnClickListener(v -> publishItem());
+    }
+
+    private void openImagePicker() {
+        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+        intent.setType("image/*");
+        intent.putExtra(Intent.EXTRA_ALLOW_MULTIPLE, true);
+        startActivityForResult(Intent.createChooser(intent, "选择图片"), REQUEST_CODE_PICK_IMAGES);
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+
+        if (requestCode == REQUEST_CODE_PICK_IMAGES && resultCode == Activity.RESULT_OK) {
+            if (data != null) {
+                if (data.getClipData() != null) {
+                    int count = Math.min(data.getClipData().getItemCount(),
+                            MAX_IMAGE_COUNT - selectedImages.size());
+                    for (int i = 0; i < count; i++) {
+                        Uri imageUri = data.getClipData().getItemAt(i).getUri();
+                        selectedImages.add(imageUri);
+                    }
+                } else if (data.getData() != null) {
+                    selectedImages.add(data.getData());
+                }
+                imageAdapter.notifyDataSetChanged();
+            }
+        }
+    }
+
+    private void publishItem() {
+        String title = etTitle.getText().toString().trim();
+        String description = etDescription.getText().toString().trim();
+        String priceStr = etPrice.getText().toString().trim();
+        String contact = etContact.getText().toString().trim();
+
+        // 验证输入
+        if (title.isEmpty()) {
+            Toast.makeText(requireContext(), "请输入商品标题", Toast.LENGTH_SHORT).show();
+            return;
+        }
+        if (description.isEmpty()) {
+            Toast.makeText(requireContext(), "请输入商品描述", Toast.LENGTH_SHORT).show();
+            return;
+        }
+        if (priceStr.isEmpty()) {
+            Toast.makeText(requireContext(), "请输入商品价格", Toast.LENGTH_SHORT).show();
+            return;
+        }
+        if (contact.isEmpty()) {
+            Toast.makeText(requireContext(), "请输入联系方式", Toast.LENGTH_SHORT).show();
+            return;
+        }
+
+        try {
+            double price = Double.parseDouble(priceStr);
+            if (price <= 0) {
+                Toast.makeText(requireContext(), "价格必须大于0", Toast.LENGTH_SHORT).show();
+                return;
+            }
+
+            // 创建物品对象
+            Item item = new Item();
+            item.setTitle(title);
+            item.setDescription(description);
+            item.setPrice(price);
+            item.setContact(contact);
+            item.setCategory(spinnerCategory.getSelectedItem().toString());
+            item.setLocation(spinnerLocation.getSelectedItem().toString());
+            item.setPublishTime(System.currentTimeMillis());
+            item.setUserId("user_" + System.currentTimeMillis());
+
+            Log.d("PublishFragment", "准备发布商品: " + item.getTitle() + ", 价格: " + item.getPrice());
+
+            // 使用DataManager保存商品并获取对应的Product对象
+            DataManager dataManager = DataManager.getInstance();
+            Product newProduct = dataManager.addItemAndGetProduct(item);
+
+            Log.d("PublishFragment", "商品已保存到DataManager，准备切换到首页");
+
+            // 发布成功
+            Toast.makeText(requireContext(), "发布成功！", Toast.LENGTH_SHORT).show();
+            clearForm();
+
+            // 切换到首页并刷新数据
+            if (getActivity() instanceof MainActivity) {
+                MainActivity mainActivity = (MainActivity) getActivity();
+
+                // 直接调用切换首页的方法
+                mainActivity.switchToHomeFragment();
+
+                Log.d("PublishFragment", "已切换到首页，准备刷新数据");
+
+                // 延迟一小段时间确保HomeFragment已加载
+                new android.os.Handler().postDelayed(() -> {
+                    try {
+                        HomeFragment homeFragment = mainActivity.getHomeFragment();
+                        if (homeFragment != null) {
+                            Log.d("PublishFragment", "成功获取HomeFragment实例，准备刷新数据");
+                            // 从DataManager获取最新数据并刷新首页
+                            refreshHomeFragment(homeFragment);
+                        } else {
+                            Log.e("PublishFragment", "获取HomeFragment实例失败，为null");
+                            // 备选方案：直接重新初始化首页数据
+                            reinitializeHomeData();
+                        }
+                    } catch (Exception e) {
+                        Log.e("PublishFragment", "刷新首页数据时出错", e);
+                        reinitializeHomeData();
+                    }
+                }, 500); // 增加延迟时间确保Fragment完全加载
+            }
+
+        } catch (NumberFormatException e) {
+            Toast.makeText(requireContext(), "请输入有效的价格", Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    // 在 PublishFragment.java 的 publishItem 方法末尾添加
+// 发布成功后，通知所有相关页面刷新数据
+    private void refreshAllData() {
+        // 这里可以添加事件总线或其他通知机制
+        // 目前主要依赖各个页面在 onResume 时重新加载数据
+        Log.d("PublishFragment", "新商品发布成功，建议相关页面刷新数据");
+    }
+
+    // 新增方法：备选方案重新初始化首页数据
+    private void reinitializeHomeData() {
+        Log.d("PublishFragment", "使用备选方案重新初始化首页数据");
+        // 这里可以尝试其他方式刷新首页，比如广播或事件总线
+        Toast.makeText(requireContext(), "发布成功，请手动刷新首页", Toast.LENGTH_SHORT).show();
+    }
+
+    // 修改刷新首页方法
+    private void refreshHomeFragment(HomeFragment homeFragment) {
+        try {
+            DataManager dataManager = DataManager.getInstance();
+            List<Product> allProducts = dataManager.getAllProducts();
+
+            Log.d("PublishFragment", "从DataManager获取到 " + allProducts.size() + " 个商品");
+            for (Product product : allProducts) {
+                Log.d("PublishFragment", "商品: " + product.getName() + ", ID: " + product.getId());
+            }
+
+            // 调用HomeFragment的方法来更新显示
+            homeFragment.updateProductList(allProducts);
+            Log.d("PublishFragment", "已调用HomeFragment的updateProductList方法");
+
+        } catch (Exception e) {
+            Log.e("PublishFragment", "刷新首页数据时出错", e);
+        }
+    }
+
+
+    private void clearForm() {
+        etTitle.setText("");
+        etDescription.setText("");
+        etPrice.setText("");
+        etContact.setText("");
+        selectedImages.clear();
+        imageAdapter.notifyDataSetChanged();
+        spinnerCategory.setSelection(0);
+        spinnerLocation.setSelection(0);
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/manager/UserManager.java

@@ -0,0 +1,350 @@
+package com.startsmake.llrisetabbardemo.manager;
+
+import android.content.SharedPreferences;
+import android.content.Context;
+import android.util.Log;
+import com.startsmake.llrisetabbardemo.api.ApiClient;
+import com.startsmake.llrisetabbardemo.api.ApiService;
+import com.startsmake.llrisetabbardemo.api.response.UserResponse;
+import com.startsmake.llrisetabbardemo.model.User;
+import com.google.gson.Gson;
+import java.util.HashSet;
+import java.util.Set;
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
+public class UserManager {
+    private static final String TAG = "UserManager";
+    private static final String PREF_NAME = "user_data";
+    private static final String KEY_USERS = "registered_users";
+    private static final String KEY_CURRENT_USER = "current_user";
+    private static final String KEY_USER_TOKEN = "user_token";
+
+    private static UserManager instance;
+    private SharedPreferences preferences;
+    private Gson gson;
+    private ApiService apiService;
+    
+    // 认证回调接口
+    public interface AuthCallback {
+        void onSuccess(User user);
+        void onError(String message);
+    }
+
+    private UserManager(Context context) {
+        preferences = context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
+        gson = new Gson();
+        apiService = ApiClient.getClient().create(ApiService.class);
+    }
+
+    public static synchronized UserManager getInstance(Context context) {
+        if (instance == null) {
+            instance = new UserManager(context);
+        }
+        return instance;
+    }
+
+    /**
+     * 检查是否已登录
+     */
+    public boolean isLoggedIn() {
+        return preferences.getBoolean("is_logged_in", false);
+    }
+
+    /**
+     * 检查手机号是否已注册
+     */
+    public boolean isPhoneRegistered(String phone) {
+        Set<String> usersSet = preferences.getStringSet(KEY_USERS, new HashSet<>());
+        for (String userJson : usersSet) {
+            User user = gson.fromJson(userJson, User.class);
+            if (user.getPhone().equals(phone)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * 注册用户（本地注册）
+     */
+    public boolean registerUser(String phone, String password) {
+        // 检查手机号是否已注册
+        if (isPhoneRegistered(phone)) {
+            return false;
+        }
+
+        // 创建新用户
+        User newUser = new User(phone, password);
+        String userJson = gson.toJson(newUser);
+
+        Set<String> usersSet = preferences.getStringSet(KEY_USERS, new HashSet<>());
+        Set<String> newUsersSet = new HashSet<>(usersSet);
+        newUsersSet.add(userJson);
+
+        return preferences.edit().putStringSet(KEY_USERS, newUsersSet).commit();
+    }
+    
+    /**
+     * 注册用户（通过后端API）
+     */
+    public void registerUserWithApi(String phone, String password, String username, AuthCallback callback) {
+        apiService.register(phone, password, username).enqueue(new Callback<UserResponse>() {
+            @Override
+            public void onResponse(Call<UserResponse> call, Response<UserResponse> response) {
+                if (response.isSuccessful() && response.body() != null && response.body().isSuccess()) {
+                    UserResponse.UserInfo userInfo = response.body().getData();
+                    if (userInfo != null) {
+                        // 创建User对象
+                        User user = new User(userInfo.getPhone(), password);
+                        // 设置用户名（如果API返回了不同的用户名）
+                        user.setUsername(userInfo.getUsername());
+                        // 保存token
+                        saveUserToken(userInfo.getToken());
+                        // 同时保存到本地（以便离线使用）
+                        registerUser(phone, password);
+                        saveCurrentUser(user);
+                        
+                        Log.d(TAG, "用户注册成功: " + userInfo.getUsername());
+                        if (callback != null) {
+                            callback.onSuccess(user);
+                        }
+                    }
+                } else {
+                    // API注册失败，尝试本地注册
+                    boolean localRegisterSuccess = registerUser(phone, password);
+                    if (localRegisterSuccess) {
+                        User user = new User(phone, password);
+                        user.setUsername(username);
+                        saveCurrentUser(user);
+                        if (callback != null) {
+                            callback.onSuccess(user);
+                        }
+                    } else {
+                        if (callback != null) {
+                            callback.onError("手机号已被注册");
+                        }
+                    }
+                }
+            }
+
+            @Override
+            public void onFailure(Call<UserResponse> call, Throwable t) {
+                Log.e(TAG, "网络请求失败: " + t.getMessage());
+                // 网络请求失败，尝试本地注册
+                boolean localRegisterSuccess = registerUser(phone, password);
+                if (localRegisterSuccess) {
+                    User user = new User(phone, password);
+                    user.setUsername(username);
+                    saveCurrentUser(user);
+                    if (callback != null) {
+                        callback.onSuccess(user);
+                    }
+                } else {
+                    if (callback != null) {
+                        callback.onError("网络连接失败，且本地注册失败");
+                    }
+                }
+            }
+        });
+    }
+
+    /**
+     * 用户登录（本地登录）
+     */
+    public User loginUser(String phone, String password) {
+        Set<String> usersSet = preferences.getStringSet(KEY_USERS, new HashSet<>());
+
+        for (String userJson : usersSet) {
+            User user = gson.fromJson(userJson, User.class);
+            if (user.getPhone().equals(phone) && user.getPassword().equals(password)) {
+                // 保存当前用户信息
+                saveCurrentUser(user);
+                return user;
+            }
+        }
+        return null;
+    }
+    
+    /**
+     * 用户登录（通过后端API）
+     */
+    public void loginUserWithApi(String phone, String password, AuthCallback callback) {
+        apiService.login(phone, password).enqueue(new Callback<UserResponse>() {
+            @Override
+            public void onResponse(Call<UserResponse> call, Response<UserResponse> response) {
+                if (response.isSuccessful() && response.body() != null && response.body().isSuccess()) {
+                    UserResponse.UserInfo userInfo = response.body().getData();
+                    if (userInfo != null) {
+                        // 创建User对象
+                        User user = new User(userInfo.getPhone(), password);
+                        // 设置用户名（如果API返回了不同的用户名）
+                        user.setUsername(userInfo.getUsername());
+                        // 保存token
+                        saveUserToken(userInfo.getToken());
+                        // 保存用户信息
+                        saveCurrentUser(user);
+                        
+                        Log.d(TAG, "用户登录成功: " + userInfo.getUsername());
+                        if (callback != null) {
+                            callback.onSuccess(user);
+                        }
+                    }
+                } else {
+                    Log.e(TAG, "API登录失败，回退到本地登录");
+                    // API登录失败，尝试本地登录
+                    User localUser = loginUser(phone, password);
+                    if (localUser != null) {
+                        if (callback != null) {
+                            callback.onSuccess(localUser);
+                        }
+                    } else {
+                        if (callback != null) {
+                            callback.onError("手机号或密码错误");
+                        }
+                    }
+                }
+            }
+
+            @Override
+            public void onFailure(Call<UserResponse> call, Throwable t) {
+                Log.e(TAG, "网络请求失败: " + t.getMessage());
+                // 网络请求失败，尝试本地登录
+                User localUser = loginUser(phone, password);
+                if (localUser != null) {
+                    if (callback != null) {
+                        callback.onSuccess(localUser);
+                    }
+                } else {
+                    if (callback != null) {
+                        callback.onError("网络连接失败，且本地账号不存在");
+                    }
+                }
+            }
+        });
+    }
+    
+    /**
+     * 保存用户token
+     */
+    private void saveUserToken(String token) {
+        preferences.edit().putString(KEY_USER_TOKEN, token).apply();
+    }
+    
+    /**
+     * 获取用户token
+     */
+    public String getUserToken() {
+        return preferences.getString(KEY_USER_TOKEN, null);
+    }
+    
+    /**
+     * 检查是否有有效的token
+     */
+    public boolean hasValidToken() {
+        return getUserToken() != null;
+    }
+
+    /**
+     * 重置密码
+     */
+    public boolean resetPassword(String phone, String newPassword) {
+        Set<String> usersSet = preferences.getStringSet(KEY_USERS, new HashSet<>());
+        Set<String> newUsersSet = new HashSet<>();
+        boolean found = false;
+
+        for (String userJson : usersSet) {
+            User user = gson.fromJson(userJson, User.class);
+            if (user.getPhone().equals(phone)) {
+                // 更新密码
+                user.setPassword(newPassword);
+                found = true;
+            }
+            newUsersSet.add(gson.toJson(user));
+        }
+
+        if (found) {
+            boolean success = preferences.edit().putStringSet(KEY_USERS, newUsersSet).commit();
+            if (success) {
+                // 如果重置的是当前登录用户，更新当前用户信息
+                User currentUser = getCurrentUser();
+                if (currentUser != null && currentUser.getPhone().equals(phone)) {
+                    currentUser.setPassword(newPassword);
+                    saveCurrentUser(currentUser);
+                }
+            }
+            return success;
+        }
+        return false;
+    }
+
+    /**
+     * 保存当前登录用户
+     */
+    private void saveCurrentUser(User user) {
+        String userJson = gson.toJson(user);
+        preferences.edit()
+                .putString(KEY_CURRENT_USER, userJson)
+                .putBoolean("is_logged_in", true)
+                .putString("user_phone", user.getPhone())
+                .putString("user_name", user.getUsername())
+                .apply();
+    }
+
+    /**
+     * 获取当前用户
+     */
+    public User getCurrentUser() {
+        String userJson = preferences.getString(KEY_CURRENT_USER, null);
+        if (userJson != null) {
+            return gson.fromJson(userJson, User.class);
+        }
+        return null;
+    }
+
+    /**
+     * 用户登出
+     */
+    public void logout() {
+        preferences.edit()
+                .remove(KEY_CURRENT_USER)
+                .putBoolean("is_logged_in", false)
+                .remove("user_phone")
+                .remove("user_name")
+                .remove(KEY_USER_TOKEN) // 清除token
+                .apply();
+        Log.d(TAG, "用户已登出");
+    }
+
+    /**
+     * 保存用户登录信息（兼容旧代码）
+     */
+    public void saveUserLogin(String phone, String password) {
+        User user = loginUser(phone, password);
+        if (user != null) {
+            saveCurrentUser(user);
+        }
+    }
+
+    /**
+     * 验证登录（兼容旧代码）
+     */
+    public boolean validateLogin(String phone, String password) {
+        return loginUser(phone, password) != null;
+    }
+
+    /**
+     * 检查用户是否存在（兼容旧代码）
+     */
+    public boolean isUserExists(String phone) {
+        return isPhoneRegistered(phone);
+    }
+
+    /**
+     * 更新密码（兼容旧代码）
+     */
+    public boolean updatePassword(String phone, String newPassword) {
+        return resetPassword(phone, newPassword);
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/model/ChatMessage.java

@@ -0,0 +1,28 @@
+package com.startsmake.llrisetabbardemo.model;
+
+public class ChatMessage {
+    private String sender;
+    private String content;
+    private String time;
+    private boolean isMe;
+
+    public ChatMessage(String sender, String content, String time, boolean isMe) {
+        this.sender = sender;
+        this.content = content;
+        this.time = time;
+        this.isMe = isMe;
+    }
+
+    // Getter and Setter methods
+    public String getSender() { return sender; }
+    public void setSender(String sender) { this.sender = sender; }
+
+    public String getContent() { return content; }
+    public void setContent(String content) { this.content = content; }
+
+    public String getTime() { return time; }
+    public void setTime(String time) { this.time = time; }
+
+    public boolean isMe() { return isMe; }
+    public void setMe(boolean me) { isMe = me; }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/model/Item.java

@@ -0,0 +1,121 @@
+package com.startsmake.llrisetabbardemo.model;
+
+import java.io.Serializable;
+import java.util.ArrayList;
+import java.util.List;
+
+public class Item implements Serializable {
+    private String id;
+    private String title;
+    private String description;
+    private int wantCount;
+    private double price;
+    private List<String> imageUrls;
+    private String category;
+    private String location;
+    private String contact;
+    private String contactQQ; // 新增QQ联系方式
+    private String contactWechat; // 新增微信联系方式
+    private long publishTime;
+    private String userId;
+    private int viewCount; // 浏览数
+    private int likeCount; // 点赞数
+
+    public Item() {
+        imageUrls = new ArrayList<>();
+        viewCount = 0;
+        likeCount = 0;
+    }
+
+    // Getter 和 Setter
+    public int getWantCount() {
+        return wantCount;
+    }
+
+    public void setWantCount(int wantCount) {
+        this.wantCount = wantCount;
+    }
+
+    // 构造函数
+    public Item(String title, String description, double price, String category, String location, String contact) {
+        this();
+        this.title = title;
+        this.description = description;
+        this.price = price;
+        this.category = category;
+        this.location = location;
+        this.contact = contact;
+        this.publishTime = System.currentTimeMillis();
+        this.userId = "user_" + System.currentTimeMillis();
+    }
+
+    // Getter 和 Setter 方法
+    public String getId() { return id; }
+    public void setId(String id) { this.id = id; }
+
+    public String getTitle() { return title; }
+    public void setTitle(String title) { this.title = title; }
+
+    public String getDescription() { return description; }
+    public void setDescription(String description) { this.description = description; }
+
+    public double getPrice() { return price; }
+    public void setPrice(double price) { this.price = price; }
+
+    public List<String> getImageUrls() { return imageUrls; }
+    public void setImageUrls(List<String> imageUrls) { this.imageUrls = imageUrls; }
+    public void addImageUrl(String imageUrl) { this.imageUrls.add(imageUrl); }
+
+    public String getCategory() { return category; }
+    public void setCategory(String category) { this.category = category; }
+
+    public String getLocation() { return location; }
+    public void setLocation(String location) { this.location = location; }
+
+    public String getContact() { return contact; }
+    public void setContact(String contact) { this.contact = contact; }
+
+    public String getContactQQ() { return contactQQ; }
+    public void setContactQQ(String contactQQ) { this.contactQQ = contactQQ; }
+
+    public String getContactWechat() { return contactWechat; }
+    public void setContactWechat(String contactWechat) { this.contactWechat = contactWechat; }
+
+    public long getPublishTime() { return publishTime; }
+    public void setPublishTime(long publishTime) { this.publishTime = publishTime; }
+
+    public String getUserId() { return userId; }
+    public void setUserId(String userId) { this.userId = userId; }
+
+    public int getViewCount() { return viewCount; }
+    public void setViewCount(int viewCount) { this.viewCount = viewCount; }
+
+    public int getLikeCount() { return likeCount; }
+    public void setLikeCount(int likeCount) { this.likeCount = likeCount; }
+
+    /**
+     * 增加浏览数
+     */
+    public void incrementViewCount() {
+        this.viewCount++;
+    }
+
+    /**
+     * 增加点赞数
+     */
+    public void incrementLikeCount() {
+        this.likeCount++;
+    }
+
+    @Override
+    public String toString() {
+        return "Item{" +
+                "id='" + id + '\'' +
+                ", title='" + title + '\'' +
+                ", price=" + price +
+                ", category='" + category + '\'' +
+                ", location='" + location + '\'' +
+                ", publishTime=" + publishTime +
+                '}';
+    }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/model/MessageItem.java

@@ -0,0 +1,33 @@
+package com.startsmake.llrisetabbardemo.model;
+
+public class MessageItem {
+    private String title;
+    private String content;
+    private String time;
+    private int unreadCount;
+    private boolean isOfficial;
+
+    public MessageItem(String title, String content, String time, int unreadCount, boolean isOfficial) {
+        this.title = title;
+        this.content = content;
+        this.time = time;
+        this.unreadCount = unreadCount;
+        this.isOfficial = isOfficial;
+    }
+
+    // Getter and Setter methods
+    public String getTitle() { return title; }
+    public void setTitle(String title) { this.title = title; }
+
+    public String getContent() { return content; }
+    public void setContent(String content) { this.content = content; }
+
+    public String getTime() { return time; }
+    public void setTime(String time) { this.time = time; }
+
+    public int getUnreadCount() { return unreadCount; }
+    public void setUnreadCount(int unreadCount) { this.unreadCount = unreadCount; }
+
+    public boolean isOfficial() { return isOfficial; }
+    public void setOfficial(boolean official) { isOfficial = official; }
+}

LLRiseTabBarDemo/app/src/main/java/com/startsmake/llrisetabbardemo/model/User.java

@@ -0,0 +1,27 @@
+package com.startsmake.llrisetabbardemo.model;
+
+public class User {
+    private String phone;
+    private String password;
+    private String username;
+    private long registerTime;
+
+    public User(String phone, String password) {
+        this.phone = phone;
+        this.password = password;
+        this.username = "用户_" + phone.substring(7);
+        this.registerTime = System.currentTimeMillis();
+    }
+
+    // Getters and Setters
+    public String getPhone() { return phone; }
+    public void setPhone(String phone) { this.phone = phone; }
+
+    public String getPassword() { return password; }
+    public void setPassword(String password) { this.password = password; }
+
+    public String getUsername() { return username; }
+    public void setUsername(String username) { this.username = username; }
+
+    public long getRegisterTime() { return registerTime; }
+}

LLRiseTabBarDemo/app/src/main/java/manager/DataManager.java

@@ -0,0 +1,522 @@
+package manager;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.util.Log;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+import com.startsmake.llrisetabbardemo.api.ApiClient;
+import com.startsmake.llrisetabbardemo.api.ApiService;
+import com.startsmake.llrisetabbardemo.api.response.BaseResponse;
+import com.startsmake.llrisetabbardemo.api.response.ProductResponse;
+import com.startsmake.llrisetabbardemo.model.Item;
+import com.startsmake.llrisetabbardemo.model.Product;
+
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import retrofit2.Call;
+import retrofit2.Callback;
+import retrofit2.Response;
+
+/**
+ * 数据管理类 - 使用单例模式管理商品数据
+ * 负责商品的增删改查操作，支持从后端API获取数据
+ */
+public class DataManager {
+
+    private static final String TAG = "DataManager";
+    private static final String PREF_NAME = "product_data";
+    private static final String KEY_ITEMS = "items";
+
+    // 单例实例
+    private static DataManager instance;
+
+    // 商品列表
+    private List<Item> itemList;
+
+    // API服务实例
+    private ApiService apiService;
+
+    // Context 和 SharedPreferences
+    private Context context;
+    private SharedPreferences sharedPreferences;
+    private Gson gson;
+
+    // 数据变化监听器列表
+    private List<OnDataChangedListener> dataChangedListeners = new CopyOnWriteArrayList<>();
+
+    // 回调接口，用于通知UI数据加载状态
+    public interface OnDataLoadedListener {
+        void onDataLoaded(List<Item> items);
+        void onError(String message);
+    }
+
+    // 数据变化监听接口
+    public interface OnDataChangedListener {
+        void onDataChanged(); // 数据发生变化时调用
+        void onProductWantCountChanged(String productId, int newCount); // 商品想要人数变化时调用
+    }
+
+    // 私有构造函数，防止外部创建实例
+    private DataManager() {
+        itemList = new ArrayList<>();
+    }
+
+    /**
+     * 初始化 DataManager（需要在 Application 或第一个 Activity 中调用）
+     */
+    public void init(Context context) {
+        this.context = context.getApplicationContext();
+        this.sharedPreferences = this.context.getSharedPreferences(PREF_NAME, Context.MODE_PRIVATE);
+        this.gson = new Gson();
+
+        // 初始化API服务
+        apiService = ApiClient.getClient().create(ApiService.class);
+
+        // 从本地存储加载数据
+        loadItemsFromStorage();
+    }
+
+    /**
+     * 获取单例实例
+     * @return DataManager 实例
+     */
+    public static DataManager getInstance() {
+        if (instance == null) {
+            instance = new DataManager();
+        }
+        return instance;
+    }
+
+    /**
+     * 注册数据变化监听器
+     */
+    public void registerDataChangedListener(OnDataChangedListener listener) {
+        if (!dataChangedListeners.contains(listener)) {
+            dataChangedListeners.add(listener);
+            Log.d(TAG, "注册数据变化监听器，当前监听器数量: " + dataChangedListeners.size());
+        }
+    }
+
+    /**
+     * 取消注册数据变化监听器
+     */
+    public void unregisterDataChangedListener(OnDataChangedListener listener) {
+        dataChangedListeners.remove(listener);
+        Log.d(TAG, "取消注册数据变化监听器，当前监听器数量: " + dataChangedListeners.size());
+    }
+
+    /**
+     * 通知数据变化
+     */
+    private void notifyDataChanged() {
+        for (OnDataChangedListener listener : dataChangedListeners) {
+            listener.onDataChanged();
+        }
+    }
+
+    /**
+     * 通知商品想要人数变化
+     */
+    private void notifyProductWantCountChanged(String productId, int newCount) {
+        for (OnDataChangedListener listener : dataChangedListeners) {
+            listener.onProductWantCountChanged(productId, newCount);
+        }
+    }
+
+    /**
+     * 从本地存储加载商品数据
+     */
+    private void loadItemsFromStorage() {
+        String itemsJson = sharedPreferences.getString(KEY_ITEMS, null);
+        if (itemsJson != null) {
+            Type type = new TypeToken<List<Item>>(){}.getType();
+            List<Item> savedItems = gson.fromJson(itemsJson, type);
+            if (savedItems != null && !savedItems.isEmpty()) {
+                itemList = savedItems;
+                Log.d(TAG, "从本地存储加载商品数据，共" + itemList.size() + "个商品");
+            } else {
+                initSampleData();
+                saveItemsToStorage();
+            }
+        } else {
+            initSampleData();
+            saveItemsToStorage();
+        }
+    }
+
+    /**
+     * 保存商品数据到本地存储
+     */
+    private void saveItemsToStorage() {
+        if (itemList != null) {
+            String itemsJson = gson.toJson(itemList);
+            sharedPreferences.edit().putString(KEY_ITEMS, itemsJson).apply();
+            Log.d(TAG, "商品数据已保存到本地存储，共" + itemList.size() + "个商品");
+        }
+    }
+
+    /**
+     * 初始化示例数据
+     */
+    private void initSampleData() {
+        // 示例商品1 - 数码产品
+        Item item1 = new Item();
+        item1.setId("item_001");
+        item1.setTitle("全新iPhone 13 Pro");
+        item1.setDescription("全新未拆封，256GB，远峰蓝色，国行正品，带发票");
+        item1.setPrice(6999.00);
+        item1.setCategory("数码产品");
+        item1.setLocation("北京");
+        item1.setContact("138****1234");
+        item1.setPublishTime(System.currentTimeMillis() - 2 * 60 * 60 * 1000); // 2小时前发布
+        item1.setWantCount(5); // 设置初始想要人数
+        itemList.add(item1);
+
+        // 示例商品2 - 数码产品
+        Item item2 = new Item();
+        item2.setId("item_002");
+        item2.setTitle("二手笔记本电脑");
+        item2.setDescription("联想小新，i5处理器，8GB内存，256GB固态硬盘，95成新");
+        item2.setPrice(2500.00);
+        item2.setCategory("数码产品");
+        item2.setLocation("上海");
+        item2.setContact("微信：abc123");
+        item2.setPublishTime(System.currentTimeMillis() - 5 * 60 * 60 * 1000); // 5小时前发布
+        item2.setWantCount(3); // 设置初始想要人数
+        itemList.add(item2);
+
+        // 示例商品3 - 服装鞋帽
+        Item item3 = new Item();
+        item3.setId("item_003");
+        item3.setTitle("品牌运动鞋");
+        item3.setDescription("耐克运动鞋，42码，只穿过几次，几乎全新，原盒在");
+        item3.setPrice(299.00);
+        item3.setCategory("服装鞋帽");
+        item3.setLocation("广州");
+        item3.setContact("159****5678");
+        item3.setPublishTime(System.currentTimeMillis() - 24 * 60 * 60 * 1000); // 1天前发布
+        item3.setWantCount(8); // 设置初始想要人数
+        itemList.add(item3);
+
+        // 示例商品4 - 图书文具
+        Item item4 = new Item();
+        item4.setId("item_004");
+        item4.setTitle("Java编程思想");
+        item4.setDescription("Java编程思想第5版，几乎全新，无笔记无划痕");
+        item4.setPrice(45.00);
+        item4.setCategory("图书文具");
+        item4.setLocation("杭州");
+        item4.setContact("QQ：123456789");
+        item4.setPublishTime(System.currentTimeMillis() - 3 * 24 * 60 * 60 * 1000); // 3天前发布
+        item4.setWantCount(12); // 设置初始想要人数
+        itemList.add(item4);
+    }
+
+    /**
+     * 获取所有商品列表（本地缓存）
+     * @return 商品列表
+     */
+    public List<Item> getAllItems() {
+        return itemList;
+    }
+
+    /**
+     * 从后端API获取所有商品列表
+     * @param listener 数据加载回调
+     */
+    public void fetchItemsFromApi(OnDataLoadedListener listener) {
+        apiService.getProducts().enqueue(new Callback<BaseResponse<List<ProductResponse>>>() {
+            @Override
+            public void onResponse(Call<BaseResponse<List<ProductResponse>>> call,
+                                   Response<BaseResponse<List<ProductResponse>>> response) {
+                if (response.isSuccessful() && response.body() != null && response.body().isSuccess()) {
+                    List<ProductResponse> productResponses = response.body().getData();
+                    if (productResponses != null) {
+                        // 转换为本地Item对象
+                        List<Item> items = convertToItems(productResponses);
+                        // 更新本地缓存
+                        itemList = items;
+                        // 保存到本地存储
+                        saveItemsToStorage();
+                        Log.d(TAG, "从API成功获取商品数据，共" + items.size() + "个商品");
+                        // 回调成功
+                        if (listener != null) {
+                            listener.onDataLoaded(items);
+                        }
+                        // 通知数据变化
+                        notifyDataChanged();
+                    } else {
+                        // 返回空数据
+                        if (listener != null) {
+                            listener.onDataLoaded(new ArrayList<>());
+                        }
+                    }
+                } else {
+                    Log.e(TAG, "API请求失败，使用本地数据");
+                    // 如果API请求失败，使用本地缓存数据
+                    if (listener != null) {
+                        listener.onDataLoaded(itemList);
+                        listener.onError("网络请求失败，显示本地数据");
+                    }
+                }
+            }
+
+            @Override
+            public void onFailure(Call<BaseResponse<List<ProductResponse>>> call, Throwable t) {
+                Log.e(TAG, "网络请求失败: " + t.getMessage());
+                // 网络请求失败，使用本地缓存数据
+                if (listener != null) {
+                    listener.onDataLoaded(itemList);
+                    listener.onError("网络连接失败，请检查网络设置");
+                }
+            }
+        });
+    }
+
+    /**
+     * 将ProductResponse转换为Item对象
+     */
+    private List<Item> convertToItems(List<ProductResponse> productResponses) {
+        List<Item> items = new ArrayList<>();
+        for (ProductResponse response : productResponses) {
+            Item item = new Item();
+            item.setId(response.getId());
+            item.setTitle(response.getTitle());
+            item.setDescription(response.getDescription());
+            item.setCategory(response.getCategory());
+            item.setPrice(response.getPrice());
+            item.setImageUrls(response.getImageUrls());
+            item.setContact(response.getContact());
+            item.setPublishTime(response.getPublishTime());
+            // 设置默认想要人数
+            item.setWantCount(0);
+
+            // 设置默认位置，因为 ProductResponse 可能没有 location 字段
+            item.setLocation("北京"); // 或者从其他地方获取，或者设置为空
+
+            items.add(item);
+        }
+        return items;
+    }
+
+    /**
+     * 添加新商品（发布新商品时调用）
+     * @param item 商品对象
+     */
+    public void addItem(Item item) {
+        // 为新商品生成ID
+        item.setId("item_" + System.currentTimeMillis());
+        // 设置发布时间
+        item.setPublishTime(System.currentTimeMillis());
+        // 设置初始想要人数
+        if (item.getWantCount() == 0) {
+            item.setWantCount(0);
+        }
+        // 将新商品添加到列表最前面（最新发布的显示在最前面）
+        itemList.add(0, item);
+
+        // 保存到本地存储
+        saveItemsToStorage();
+
+        Log.d("DataManager", "成功添加新商品：" + item.getTitle() + "，当前商品总数：" + itemList.size());
+
+        // 通知数据变化
+        notifyDataChanged();
+    }
+
+    /**
+     * 更新商品的想要人数
+     * @param productId 商品ID
+     * @param wantCount 新的想要人数
+     */
+    public void updateProductWantCount(String productId, int wantCount) {
+        boolean found = false;
+        for (Item item : itemList) {
+            if (item.getId().equals(productId)) {
+                item.setWantCount(wantCount);
+                found = true;
+                // 保存到本地存储
+                saveItemsToStorage();
+                Log.d(TAG, "更新商品 " + productId + " 的想要人数为: " + wantCount);
+
+                // 通知想要人数变化
+                notifyProductWantCountChanged(productId, wantCount);
+                break;
+            }
+        }
+
+        if (found) {
+            // 同时通知整体数据变化
+            notifyDataChanged();
+        }
+    }
+
+    /**
+     * 获取商品的想要人数
+     * @param productId 商品ID
+     * @return 想要人数
+     */
+    public int getProductWantCount(String productId) {
+        for (Item item : itemList) {
+            if (item.getId().equals(productId)) {
+                return item.getWantCount();
+            }
+        }
+        return 0;
+    }
+
+    /**
+     * 获取所有商品作为Product列表（供首页使用）
+     */
+    public List<Product> getAllProducts() {
+        List<Product> products = new ArrayList<>();
+        Log.d("DataManager", "开始转换 " + itemList.size() + " 个Item到Product");
+
+        for (Item item : itemList) {
+            products.add(convertItemToProduct(item));
+        }
+
+        Log.d("DataManager", "转换完成，返回 " + products.size() + " 个Product");
+        return products;
+    }
+
+    /**
+     * 根据ID查找商品
+     * @param id 商品ID
+     * @return 商品对象，找不到返回null
+     */
+    public Item getItemById(String id) {
+        for (Item item : itemList) {
+            if (item.getId().equals(id)) {
+                return item;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * 根据分类筛选商品
+     * @param category 分类名称
+     * @return 该分类下的商品列表
+     */
+    public List<Item> getItemsByCategory(String category) {
+        List<Item> result = new ArrayList<>();
+        for (Item item : itemList) {
+            if (item.getCategory().equals(category)) {
+                result.add(item);
+            }
+        }
+        return result;
+    }
+
+    /**
+     * 根据关键词搜索商品（本地搜索）
+     * @param keyword 搜索关键词
+     * @return 匹配的商品列表
+     */
+    public List<Item> searchItems(String keyword) {
+        List<Item> result = new ArrayList<>();
+        for (Item item : itemList) {
+            if (item.getTitle().toLowerCase().contains(keyword.toLowerCase()) ||
+                    item.getDescription().toLowerCase().contains(keyword.toLowerCase()) ||
+                    item.getCategory().toLowerCase().contains(keyword.toLowerCase())) {
+                result.add(item);
+            }
+        }
+        Log.d(TAG, "搜索关键词: " + keyword + ", 找到 " + result.size() + " 个结果");
+        return result;
+    }
+
+    /**
+     * 从后端API搜索商品
+     * @param keyword 搜索关键词
+     * @param listener 搜索结果回调
+     */
+    public void searchItemsFromApi(String keyword, OnDataLoadedListener listener) {
+        apiService.searchProducts(keyword).enqueue(new Callback<BaseResponse<List<ProductResponse>>>() {
+            @Override
+            public void onResponse(Call<BaseResponse<List<ProductResponse>>> call,
+                                   Response<BaseResponse<List<ProductResponse>>> response) {
+                if (response.isSuccessful() && response.body() != null && response.body().isSuccess()) {
+                    List<ProductResponse> productResponses = response.body().getData();
+                    if (productResponses != null) {
+                        List<Item> items = convertToItems(productResponses);
+                        if (listener != null) {
+                            listener.onDataLoaded(items);
+                        }
+                    } else {
+                        if (listener != null) {
+                            listener.onDataLoaded(new ArrayList<>());
+                        }
+                    }
+                } else {
+                    // 如果API搜索失败，回退到本地搜索
+                    List<Item> localResults = searchItems(keyword);
+                    if (listener != null) {
+                        listener.onDataLoaded(localResults);
+                    }
+                }
+            }
+
+            @Override
+            public void onFailure(Call<BaseResponse<List<ProductResponse>>> call, Throwable t) {
+                Log.e(TAG, "搜索请求失败: " + t.getMessage());
+                // 网络请求失败，回退到本地搜索
+                List<Item> localResults = searchItems(keyword);
+                if (listener != null) {
+                    listener.onDataLoaded(localResults);
+                }
+            }
+        });
+    }
+
+    /**
+     * 获取商品数量
+     * @return 商品总数
+     */
+    public int getItemCount() {
+        return itemList.size();
+    }
+
+    /**
+     * 清空所有数据（主要用于测试）
+     */
+    public void clearAll() {
+        itemList.clear();
+        saveItemsToStorage();
+        // 通知数据变化
+        notifyDataChanged();
+    }
+
+    /**
+     * 将Item对象转换为Product对象
+     */
+    public Product convertItemToProduct(Item item) {
+        Product product = new Product();
+        product.setId(item.getId());
+        product.setName(item.getTitle());
+        product.setDescription(item.getDescription());
+        product.setCategory(item.getCategory());
+        product.setPrice(item.getPrice());
+        product.setLocation(item.getLocation());
+        product.setContact(item.getContact());
+        // 设置想要人数（从Item中获取）
+        product.setWantCount(item.getWantCount());
+        product.setSellerRating("卖家信用良好");
+        product.setFreeShipping(false);
+        return product;
+    }
+
+    /**
+     * 添加商品并返回对应的Product对象
+     */
+    public Product addItemAndGetProduct(Item item) {
+        addItem(item);
+        return convertItemToProduct(item);
+    }
+}

LLRiseTabBarDemo/app/src/main/res/drawable/bg_avatar_placeholder.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/white" />
+    <stroke
+        android:width="1dp"
+        android:color="#e0e0e0" />
+    <corners android:radius="4dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_chat_input.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#f5f5f5" />
+    <corners android:radius="24dp" />
+    <stroke
+        android:width="1dp"
+        android:color="#e0e0e0" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_chat_message_left.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/white" />
+    <corners
+        android:topLeftRadius="0dp"
+        android:topRightRadius="16dp"
+        android:bottomLeftRadius="16dp"
+        android:bottomRightRadius="16dp" />
+    <stroke
+        android:width="1dp"
+        android:color="#e0e0e0" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_chat_message_right.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#07C160" />
+    <corners
+        android:topLeftRadius="16dp"
+        android:topRightRadius="0dp"
+        android:bottomLeftRadius="16dp"
+        android:bottomRightRadius="16dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_delete_button.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#99000000" />
+    <corners android:radius="12dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_edittext.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#FFFFFF" />
+    <stroke android:width="1dp" android:color="#E0E0E0" />
+    <corners android:radius="8dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_image_border.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#f0f0f0" />
+    <corners android:radius="4dp" />
+    <stroke
+        android:width="1dp"
+        android:color="#e0e0e0" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_search_edittext.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#f5f5f5" />
+    <corners android:radius="18dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/bg_unread_count.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#FF5000" />
+    <corners android:radius="9dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/button_blue.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#87CEEB"/>
+    <corners android:radius="12dp"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/button_border.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/white" />
+    <stroke android:width="1dp" android:color="#e0e0e0" />
+    <corners android:radius="4dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/button_primary.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#2196F3"/>
+    <corners android:radius="16dp"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/button_primary_xiangxi.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#2196F3"/>
+    <corners android:radius="12dp"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/button_secondary.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#f8f9fa" />
+    <corners android:radius="8dp" />
+    <stroke android:width="1dp" android:color="#dee2e6" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/card_background.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#FFFFFF"/>
+    <corners android:radius="12dp"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/circle_bg.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+
+    <solid android:color="#FFFFFFFF" />
+
+    <stroke
+        android:width="1dp"
+        android:color="#FFE0E0E0" />
+
+    <!-- 添加阴影效果 -->
+    <padding
+        android:left="2dp"
+        android:top="2dp"
+        android:right="2dp"
+        android:bottom="2dp" />
+
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/credit_bg.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="12dp" />
+    <solid android:color="#FF00BCD4" />
+    <stroke
+        android:width="0.5dp"
+        android:color="#FF0097A7" />
+    <padding
+        android:left="8dp"
+        android:top="2dp"
+        android:right="8dp"
+        android:bottom="2dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/default_product_image.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="22dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#F5F5F5"
+        android:pathData="M21,19V5c0,-1.1 -0.9,-2 -2,-2H5c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2zM8.5,13.5l2.5,3.01L14.5,12l4.5,6H5l3.5,-4.5z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/dialog_background.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/white" />
+    <corners android:radius="16dp" />
+    <stroke android:width="1dp" android:color="#f0f0f0" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/edittext_border.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/white" />
+    <stroke android:width="1dp" android:color="#e0e0e0" />
+    <corners android:radius="4dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/filter_tag_normal.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#f8f9fa" />
+    <corners android:radius="20dp" />
+    <stroke android:width="1dp" android:color="#e9ecef" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/filter_tag_selected.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#fff2f2" />
+    <corners android:radius="20dp" />
+    <stroke android:width="1dp" android:color="#ff6b35" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/gradient_header.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <gradient
+        android:startColor="#E3F2FD"
+        android:endColor="#BBDEFB"
+        android:angle="90"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_about.xml

@@ -0,0 +1,15 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2z M12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M12,6c-3.31,0 -6,2.69 -6,6s2.69,6 6,6 6,-2.69 6,-6 -2.69,-6 -6,-6z M12,16c-2.21,0 -4,-1.79 -4,-4s1.79,-4 4,-4 4,1.79 4,4 -1.79,4 -4,4z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M12,9.5c-1.38,0 -2.5,1.12 -2.5,2.5s1.12,2.5 2.5,2.5 2.5,-1.12 2.5,-2.5 -1.12,-2.5 -2.5,-2.5z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_add.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="@color/white">
+
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M19,13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/>
+
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_arrow_right.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:strokeColor="#FF666666"
+        android:strokeWidth="2"
+        android:fillColor="@android:color/transparent"
+        android:pathData="M9,6l6,6l-6,6"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_budget_tracker.xml

@@ -0,0 +1,15 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2z M12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M12.5,7H11v6l5.25,3.15l0.75,-1.23l-4.5,-2.67z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M7,12.5h10v-1H7z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_coupons.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M20,6h-2.18c0.11,-0.31 0.18,-0.65 0.18,-1c0,-1.66 -1.34,-3 -3,-3c-1.05,0 -1.96,0.54 -2.5,1.35C12.96,2.54 12.05,2 11,2C9.34,2 8,3.34 8,5c0,0.35 0.07,0.69 0.18,1H4c-1.11,0 -1.99,0.89 -1.99,2L2,19c0,1.11 0.89,2 2,2h16c1.11,0 2,-0.89 2,-2V8C22,6.89 21.11,6 20,6z M15,4c0.55,0 1,0.45 1,1s-0.45,1 -1,1s-1,-0.45 -1,-1S14.45,4 15,4z M11,4c0.55,0 1,0.45 1,1s-0.45,1 -1,1s-1,-0.45 -1,-1S10.45,4 11,4z M4,19v-6h6v6H4z M14,19v-6h6v6H14z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_default_avatar.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF757575"
+        android:pathData="M12,12c2.21,0 4,-1.79 4,-4s-1.79,-4 -4,-4 -4,1.79 -4,4 1.79,4 4,4zM12,14c-2.67,0 -8,1.34 -8,4v2h16v-2c0,-2.66 -5.33,-4 -8,-4z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_feedback.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF4CAF50"
+        android:pathData="M20,2H4C2.9,2 2,2.9 2,4v12c0,1.1 0.9,2 2,2h4v3c0,0.55 0.45,1 1,1h0.5c0.25,0 0.49,-0.09 0.67,-0.26L13.9,18H20c1.1,0 2,-0.9 2,-2V4C22,2.9 21.1,2 20,2z M20,16h-6.09c-0.18,0 -0.35,0.06 -0.49,0.17l-1.42,1.42V16H4V4h16V16z"/>
+    <path
+        android:fillColor="#FF4CAF50"
+        android:pathData="M11,11h2v2h-2z M11,7h2v2h-2z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_help.xml

@@ -0,0 +1,15 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2z M12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M11,16h2v2h-2z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M12,6c-2.21,0 -4,1.79 -4,4h2c0,-1.1 0.9,-2 2,-2s2,0.9 2,2c0,2 -3,1.75 -3,5h2c0,-2.25 3,-2.5 3,-5C16,7.79 14.21,6 12,6z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_invite_friends.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M16,11c1.66,0 2.99,-1.34 2.99,-3S17.66,5 16,5c-1.66,0 -3,1.34 -3,3S14.34,11 16,11z M8,11c1.66,0 2.99,-1.34 2.99,-3S9.66,5 8,5C6.34,5 5,6.34 5,8S6.34,11 8,11z M8,13c-2.33,0 -7,1.17 -7,3.5V19h14v-2.5C15,14.17 10.33,13 8,13z M16,13c-0.29,0 -0.62,0.02 -0.97,0.05c1.16,0.84 1.97,1.97 1.97,3.45V19h6v-2.5C23,14.17 18.33,13 16,13z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M20,2H4C2.9,2 2,2.9 2,4v12c0,1.1 0.9,2 2,2h4v-2H4V4h16v12h-4v2h4c1.1,0 2,-0.9 2,-2V4C22,2.9 21.1,2 20,2z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_logout.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M17,7l-1.41,1.41L18.17,11H8v2h10.17l-2.58,2.58L17,17l5,-5L17,7z M4,5h8V3H4C2.9,3 2,3.9 2,5v14c0,1.1 0.9,2 2,2h8v-2H4V5z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_more.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M6,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z M18,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z M12,10c-1.1,0 -2,0.9 -2,2s0.9,2 2,2 2,-0.9 2,-2 -0.9,-2 -2,-2z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_my_listings.xml

@@ -0,0 +1,15 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M19,3H5C3.9,3 3,3.9 3,5v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2V5C21,3.9 20.1,3 19,3zM19,19H5V5h14V19z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M8.5,15H6.5l4,-7 4,7h-2l-1.5,-2.5L8.5,15z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M17,12.5h-4V11h4V12.5z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_official.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="12dp"
+    android:height="12dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF5000"
+        android:pathData="M12,2L4,5v6.09c0,5.05 3.41,9.76 8,10.91c4.59,-1.15 8,-5.86 8,-10.91V5L12,2z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_price_alert.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M12,22c1.1,0 2,-0.9 2,-2h-4C10,21.1 10.9,22 12,22z M18,16v-5c0,-3.07 -1.64,-5.64 -4.5,-6.32V4c0,-0.83 -0.67,-1.5 -1.5,-1.5s-1.5,0.67 -1.5,1.5v0.68C7.63,5.36 6,7.92 6,11v5l-2,2v1h16v-1L18,16z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M15,9H9v2h1v3h4v-3h1V9z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_product_placeholder.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#BDBDBD"
+        android:pathData="M19,5v14H5V5h14m0-2H5c-1.1,0 -2,0.9 -2,2v14c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2V5c0,-1.1 -0.9,-2 -2,-2z"/>
+    <path
+        android:fillColor="#BDBDBD"
+        android:pathData="M12,12c1.1,0 2,-0.9 2,-2s-0.9,-2 -2,-2 -2,0.9 -2,2 0.9,2 2,2zM14,16v2h-4v-2c0,-1.1 0.9,-2 2,-2s2,0.9 2,2z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_purchase_history.xml

@@ -0,0 +1,12 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M13,3c-4.97,0 -9,4.03 -9,9H1l3.89,3.89l0.07,0.14L9,12H6c0,-3.87 3.13,-7 7,-7s7,3.13 7,7s-3.13,7 -7,7c-1.93,0 -3.68,-0.79 -4.94,-2.06l-1.42,1.42C8.27,19.99 10.51,21 13,21c4.97,0 9,-4.03 9,-9s-4.03,-9 -9,-9z"/>
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M12,8v5l4.25,2.52l0.77,-1.28l-3.52,-2.09V8z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_qr_code.xml

@@ -0,0 +1,39 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M3,11h8V3H3V11zM5,5h4v4H5V5z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M3,21h8v-8H3V21zM5,15h4v4H5V15z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M13,3v8h8V3H13zM19,9h-4V5h4V9z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M21,19h-2v2h2V19z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M13,13h2v2h-2V13z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M15,15h2v2h-2V15z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M13,17h2v2h-2V17z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M15,19h2v2h-2V19z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M17,17h2v2h-2V17z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M19,15h2v2h-2V15z"/>
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M17,13h2v2h-2V13z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_settings.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FF666666"
+        android:pathData="M19.14,12.94c0.04,-0.3 0.06,-0.61 0.06,-0.94c0,-0.32 -0.02,-0.64 -0.07,-0.94l2.03,-1.58c0.18,-0.14 0.23,-0.41 0.12,-0.61l-1.92,-3.32c-0.12,-0.22 -0.37,-0.29 -0.59,-0.22l-2.39,0.96c-0.5,-0.38 -1.03,-0.7 -1.62,-0.94L14.4,2.81c-0.04,-0.24 -0.24,-0.41 -0.48,-0.41h-3.84c-0.24,0 -0.43,0.17 -0.47,0.41L9.25,5.35C8.66,5.59 8.12,5.92 7.63,6.29L5.24,5.33c-0.22,-0.08 -0.47,0 -0.59,0.22L2.74,8.87C2.62,9.08 2.66,9.34 2.86,9.48l2.03,1.58C4.84,11.36 4.82,11.69 4.82,12s0.02,0.64 0.07,0.94l-2.03,1.58c-0.18,0.14 -0.23,0.41 -0.12,0.61l1.92,3.32c0.12,0.22 0.37,0.29 0.59,0.22l2.39,-0.96c0.5,0.38 1.03,0.7 1.62,0.94l0.36,2.54c0.05,0.24 0.24,0.41 0.48,0.41h3.84c0.24,0 0.44,-0.17 0.47,-0.41l0.36,-2.54c0.59,-0.24 1.13,-0.56 1.62,-0.94l2.39,0.96c0.22,0.08 0.47,0 0.59,-0.22l1.92,-3.32c0.12,-0.22 0.07,-0.47 -0.12,-0.61L19.14,12.94zM12,15.6c-1.98,0 -3.6,-1.62 -3.6,-3.6s1.62,-3.6 3.6,-3.6s3.6,1.62 3.6,3.6S13.98,15.6 12,15.6z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_store.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#2196F3"
+        android:pathData="M19,6h-2c0,-2.8 -2.2,-5 -5,-5S7,3.2 7,6H5C3.9,6 3,6.9 3,8v12c0,1.1 0.9,2 2,2h14c1.1,0 2,-0.9 2,-2V8C21,6.9 20.1,6 19,6z M12,3c1.7,0 3,1.3 3,3H9C9,4.3 10.3,3 12,3z M19,20H5V8h2v2c0,0.6 0.4,1 1,1s1,-0.4 1,-1V8h6v2c0,0.6 0.4,1 1,1s1,-0.4 1,-1V8h2V20z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/ic_wishlist.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="#FFE44D"
+        android:pathData="M12,17.27L18.18,21l-1.64,-7.03L22,9.24l-7.19,-0.61L12,2L9.19,8.63L2,9.24l5.46,4.73L5.82,21z"/>
+</vector>

LLRiseTabBarDemo/app/src/main/res/drawable/image_border.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#F5F5F5"/>
+    <corners android:radius="8dp"/>
+    <stroke android:width="1dp" android:color="#E3F2FD"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/member_bg.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <corners android:radius="12dp" />
+
+    <!-- 银白色渐变 -->
+    <gradient
+        android:type="linear"
+        android:startColor="#FFE8E8E8"
+        android:centerColor="#FFD6D6D6"
+        android:endColor="#FFC0C0C0"
+        android:angle="45" />
+
+    <stroke
+        android:width="0.8dp"
+        android:color="#FFA0A0A0" />
+
+    <padding
+        android:left="8dp"
+        android:top="2dp"
+        android:right="8dp"
+        android:bottom="2dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/price_tag_background.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#2196F3" />
+    <corners android:radius="8dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/product_card_background.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/white" />
+    <corners android:radius="@dimen/product_card_corner_radius" />
+    <stroke
+        android:width="1dp"
+        android:color="#E3F2FD" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/product_card_background_with_shadow.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- 阴影 -->
+    <item>
+        <shape android:shape="rectangle">
+            <solid android:color="#E3F2FD" />
+            <corners android:radius="@dimen/product_card_corner_radius" />
+        </shape>
+    </item>
+    <!-- 内容 -->
+    <item android:top="2dp" android:bottom="2dp" android:left="2dp" android:right="2dp">
+        <shape android:shape="rectangle">
+            <solid android:color="@android:color/white" />
+            <corners android:radius="@dimen/product_card_corner_radius" />
+            <stroke
+                android:width="1dp"
+                android:color="#BBDEFB" />
+        </shape>
+    </item>
+</layer-list>

LLRiseTabBarDemo/app/src/main/res/drawable/search_background.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <corners android:radius="25dp" />
+
+    <!-- 渐变背景 -->
+    <gradient
+        android:type="linear"
+        android:startColor="#FFFFFF"
+        android:endColor="#F8F9FA"
+        android:angle="90" />
+
+    <stroke
+        android:width="1dp"
+        android:color="#E0E0E0" />
+
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/search_box_background.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#FFFFFF"/>
+    <corners android:radius="24dp"/>
+    <stroke android:width="1dp" android:color="#E3F2FD"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/tab_normal.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#FFFFFF"/>
+    <corners android:radius="18dp"/>
+    <stroke android:width="1dp" android:color="#E0E0E0"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/tab_selected.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#E3F2FD"/>
+    <corners android:radius="18dp"/>
+    <stroke android:width="1dp" android:color="#2196F3"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/tag_normal_background.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <!-- 圆角 -->
+    <corners android:radius="16dp" />
+
+    <!-- 背景色 - 白色 -->
+    <solid android:color="@color/white" />
+
+    <!-- 灰色边框 -->
+    <stroke
+        android:width="1dp"
+        android:color="@color/gray_300" />
+
+    <!-- 内边距 -->
+    <padding
+        android:left="8dp"
+        android:top="4dp"
+        android:right="8dp"
+        android:bottom="4dp" />
+
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/tag_normal_background1.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#f5f5f5" />
+    <stroke android:width="1dp" android:color="#e0e0e0" />
+    <corners android:radius="16dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/tag_selected_background.xml

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <corners android:radius="16dp" />
+
+    <!-- 渐变背景 -->
+    <gradient
+        android:type="linear"
+        android:startColor="@color/primary_blue_light"
+        android:endColor="@color/primary_blue"
+        android:angle="90" />
+
+    <stroke
+        android:width="1dp"
+        android:color="@color/primary_blue_dark" />
+
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/tag_selected_background1.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#fff2f2" />
+    <stroke android:width="1dp" android:color="#ff6b35" />
+    <corners android:radius="16dp" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/tag_small.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#E3F2FD"/>
+    <corners android:radius="10dp"/>
+</shape>

LLRiseTabBarDemo/app/src/main/res/drawable/want_button_background.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#E3F2FD" />
+    <corners android:radius="6dp" />
+    <stroke
+        android:width="1dp"
+        android:color="#2196F3" />
+</shape>

LLRiseTabBarDemo/app/src/main/res/layout/activity_chat.xml

@@ -0,0 +1,71 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:background="#f5f5f5">
+
+    <!-- 标题栏 -->
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="56dp"
+        android:background="@android:color/white"
+        android:elevation="2dp">
+
+        <ImageView
+            android:id="@+id/ivBack"
+            android:layout_width="24dp"
+            android:layout_height="24dp"
+            android:src="@android:drawable/ic_menu_close_clear_cancel"
+            android:layout_centerVertical="true"
+            android:layout_marginStart="16dp" />
+
+        <TextView
+            android:id="@+id/tvTitle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="聊天"
+            android:textSize="18sp"
+            android:textStyle="bold"
+            android:layout_centerInParent="true" />
+
+    </RelativeLayout>
+
+    <!-- 聊天消息列表 -->
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/rvChatMessages"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1" />
+
+    <!-- 输入框区域 -->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="@android:color/white"
+        android:orientation="horizontal"
+        android:padding="8dp"
+        android:elevation="4dp">
+
+        <EditText
+            android:id="@+id/etMessage"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:background="@drawable/bg_chat_input"
+            android:hint="输入消息..."
+            android:maxLines="3"
+            android:padding="12dp"
+            android:textSize="14sp" />
+
+        <ImageButton
+            android:id="@+id/btnSend"
+            android:layout_width="48dp"
+            android:layout_height="48dp"
+            android:background="?android:attr/selectableItemBackground"
+            android:src="@android:drawable/ic_menu_send"
+            android:layout_marginStart="8dp" />
+
+    </LinearLayout>
+
+</LinearLayout>

LLRiseTabBarDemo/app/src/main/res/layout/activity_product_detail.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/fragment_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent" />

LLRiseTabBarDemo/app/src/main/res/layout/dialog_filter.xml

@@ -0,0 +1,457 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:background="@drawable/dialog_background"
+    android:padding="0dp">
+
+    <!-- 标题栏 -->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:gravity="center_vertical"
+        android:padding="20dp"
+        android:background="#fafafa">
+
+        <TextView
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:text="筛选"
+            android:textColor="#333333"
+            android:textSize="18sp"
+            android:textStyle="bold" />
+
+        <TextView
+            android:id="@+id/btn_reset"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="重置"
+            android:textColor="#666666"
+            android:textSize="14sp"
+            android:padding="8dp"
+            android:background="?attr/selectableItemBackground"
+            android:clickable="true"
+            android:focusable="true" />
+
+    </LinearLayout>
+
+    <!-- 内容区域 -->
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="400dp"
+        android:padding="20dp">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <!-- 价格筛选 -->
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="价格区间"
+                android:textColor="#333333"
+                android:textSize="16sp"
+                android:textStyle="bold"
+                android:layout_marginBottom="12dp" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:gravity="center_vertical"
+                android:layout_marginBottom="24dp">
+
+                <EditText
+                    android:id="@+id/et_min_price"
+                    android:layout_width="0dp"
+                    android:layout_height="48dp"
+                    android:layout_weight="1"
+                    android:hint="最低价"
+                    android:inputType="numberDecimal"
+                    android:background="@drawable/edittext_border"
+                    android:paddingStart="16dp"
+                    android:paddingEnd="16dp"
+                    android:textSize="14sp" />
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="至"
+                    android:textColor="#666666"
+                    android:textSize="14sp"
+                    android:paddingHorizontal="12dp" />
+
+                <EditText
+                    android:id="@+id/et_max_price"
+                    android:layout_width="0dp"
+                    android:layout_height="48dp"
+                    android:layout_weight="1"
+                    android:hint="最高价"
+                    android:inputType="numberDecimal"
+                    android:background="@drawable/edittext_border"
+                    android:paddingStart="16dp"
+                    android:paddingEnd="16dp"
+                    android:textSize="14sp" />
+
+            </LinearLayout>
+
+            <!-- 商品类别 -->
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="商品类别"
+                android:textColor="#333333"
+                android:textSize="16sp"
+                android:textStyle="bold"
+                android:layout_marginBottom="12dp" />
+
+            <LinearLayout
+                android:id="@+id/category_container"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:layout_marginBottom="24dp">
+
+                <!-- 第一行类别 -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:layout_marginBottom="8dp">
+
+                    <TextView
+                        android:id="@+id/category_digital"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="数码产品"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/category_clothing"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="服装鞋帽"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/category_home"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:gravity="center"
+                        android:text="家居日用"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                </LinearLayout>
+
+                <!-- 第二行类别 -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:layout_marginBottom="8dp">
+
+                    <TextView
+                        android:id="@+id/category_books"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="图书文具"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/category_beauty"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="美妆个护"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/category_sports"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:gravity="center"
+                        android:text="运动户外"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                </LinearLayout>
+
+                <!-- 第三行类别 -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+
+                    <TextView
+                        android:id="@+id/category_other"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="其他"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <!-- 占位空间，保持布局平衡 -->
+                    <View
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp" />
+
+                    <View
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <!-- 区域筛选 -->
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="区域"
+                android:textColor="#333333"
+                android:textSize="16sp"
+                android:textStyle="bold"
+                android:layout_marginBottom="12dp" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:layout_marginBottom="32dp">
+
+                <!-- 第一行区域 -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:layout_marginBottom="8dp">
+
+                    <TextView
+                        android:id="@+id/region_beijing"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="北京"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/region_shanghai"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="上海"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/region_guangzhou"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:gravity="center"
+                        android:text="广州"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                </LinearLayout>
+
+                <!-- 第二行区域 -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:layout_marginBottom="8dp">
+
+                    <TextView
+                        android:id="@+id/region_shenzhen"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="深圳"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/region_hangzhou"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="杭州"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/region_chengdu"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:gravity="center"
+                        android:text="成都"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                </LinearLayout>
+
+                <!-- 第三行区域 -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+
+                    <TextView
+                        android:id="@+id/region_wuhan"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="武汉"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <TextView
+                        android:id="@+id/region_other"
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1"
+                        android:layout_marginEnd="8dp"
+                        android:gravity="center"
+                        android:text="其他"
+                        android:textColor="#666666"
+                        android:textSize="13sp"
+                        android:background="@drawable/filter_tag_normal"
+                        android:clickable="true"
+                        android:focusable="true" />
+
+                    <!-- 占位空间，保持布局平衡 -->
+                    <View
+                        android:layout_width="0dp"
+                        android:layout_height="36dp"
+                        android:layout_weight="1" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+        </LinearLayout>
+
+    </ScrollView>
+
+    <!-- 底部按钮 -->
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="#f0f0f0" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:padding="16dp">
+
+        <Button
+            android:id="@+id/btn_cancel"
+            android:layout_width="0dp"
+            android:layout_height="48dp"
+            android:layout_weight="1"
+            android:layout_marginEnd="8dp"
+            android:text="取消"
+            android:textColor="#666666"
+            android:textSize="16sp"
+            android:background="@drawable/button_secondary" />
+
+        <Button
+            android:id="@+id/btn_confirm"
+            android:layout_width="0dp"
+            android:layout_height="48dp"
+            android:layout_weight="1"
+            android:layout_marginStart="8dp"
+            android:text="确定"
+            android:textColor="@android:color/white"
+            android:textSize="16sp"
+            android:textStyle="bold"
+            android:background="@drawable/button_primary" />
+
+    </LinearLayout>
+
+</LinearLayout>

LLRiseTabBarDemo/app/src/main/res/layout/dialog_region_filter.xml

@@ -0,0 +1,132 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:background="@android:color/white"
+    android:padding="16dp">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="选择区域"
+        android:textColor="#333333"
+        android:textSize="18sp"
+        android:textStyle="bold"
+        android:layout_marginBottom="16dp" />
+
+    <TextView
+        android:id="@+id/region_all"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="全区域"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="#f0f0f0"
+        android:layout_marginVertical="8dp" />
+
+    <TextView
+        android:id="@+id/region_beijing"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="北京"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <TextView
+        android:id="@+id/region_shanghai"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="上海"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <TextView
+        android:id="@+id/region_guangzhou"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="广州"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <TextView
+        android:id="@+id/region_shenzhen"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="深圳"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <TextView
+        android:id="@+id/region_hangzhou"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="杭州"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <TextView
+        android:id="@+id/region_chengdu"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="成都"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <TextView
+        android:id="@+id/region_wuhan"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="武汉"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+    <TextView
+        android:id="@+id/region_other"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="其他"
+        android:textColor="#333333"
+        android:textSize="16sp"
+        android:padding="12dp"
+        android:background="?attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true" />
+
+</LinearLayout>

LLRiseTabBarDemo/app/src/main/res/layout/fragment_item_detail.xml

@@ -0,0 +1,142 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp"
+    android:background="#f5f5f5">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <!-- 商品图片 -->
+        <ImageView
+            android:id="@+id/ivItemImage"
+            android:layout_width="match_parent"
+            android:layout_height="200dp"
+            android:scaleType="centerCrop"
+            android:background="@drawable/bg_image_border"
+            android:src="@mipmap/ic_launcher" />
+
+        <!-- 商品基本信息 -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:background="@android:color/white"
+            android:padding="16dp"
+            android:layout_marginTop="8dp">
+
+            <TextView
+                android:id="@+id/tvTitle"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="商品标题"
+                android:textSize="18sp"
+                android:textStyle="bold" />
+
+            <TextView
+                android:id="@+id/tvPrice"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="¥0.00"
+                android:textColor="#ff4444"
+                android:textSize="20sp"
+                android:textStyle="bold"
+                android:layout_marginTop="8dp" />
+
+        </LinearLayout>
+
+        <!-- 商品详情 -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:background="@android:color/white"
+            android:padding="16dp"
+            android:layout_marginTop="8dp">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="商品详情"
+                android:textSize="16sp"
+                android:textStyle="bold" />
+
+            <TextView
+                android:id="@+id/tvDescription"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="商品描述"
+                android:textSize="14sp"
+                android:layout_marginTop="8dp"
+                android:lineSpacingExtra="4dp" />
+
+        </LinearLayout>
+
+        <!-- 商品信息 -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:background="@android:color/white"
+            android:padding="16dp"
+            android:layout_marginTop="8dp">
+
+            <TextView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="商品信息"
+                android:textSize="16sp"
+                android:textStyle="bold" />
+
+            <TextView
+                android:id="@+id/tvCategory"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="分类："
+                android:textSize="14sp"
+                android:layout_marginTop="8dp" />
+
+            <TextView
+                android:id="@+id/tvLocation"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="位置："
+                android:textSize="14sp"
+                android:layout_marginTop="4dp" />
+
+            <TextView
+                android:id="@+id/tvContact"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="联系方式："
+                android:textSize="14sp"
+                android:layout_marginTop="4dp" />
+
+            <TextView
+                android:id="@+id/tvPublishTime"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="发布时间："
+                android:textSize="14sp"
+                android:layout_marginTop="4dp" />
+
+        </LinearLayout>
+
+        <!-- 联系卖家按钮 -->
+        <Button
+            android:id="@+id/btnContact"
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:text="联系卖家"
+            android:textSize="16sp"
+            android:textStyle="bold"
+            android:background="@drawable/button_blue"
+            android:textColor="@android:color/white"
+            android:layout_marginTop="16dp" />
+
+    </LinearLayout>
+
+</ScrollView>

LLRiseTabBarDemo/app/src/main/res/layout/fragment_publish.xml

@@ -0,0 +1,148 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="16dp"
+    android:background="#f5f5f5">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <!-- 图片上传区域 -->
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="上传图片"
+            android:textSize="16sp"
+            android:textStyle="bold"
+            android:layout_marginBottom="8dp" />
+
+        <GridView
+            android:id="@+id/gridViewImages"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:numColumns="3"
+            android:verticalSpacing="8dp"
+            android:horizontalSpacing="8dp"
+            android:stretchMode="columnWidth"
+            android:background="@drawable/bg_edittext"
+            android:padding="8dp" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="最多可上传9张图片"
+            android:textSize="12sp"
+            android:textColor="#666"
+            android:layout_marginTop="4dp"
+            android:layout_marginBottom="16dp" />
+
+        <!-- 商品信息区域 -->
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="商品信息"
+            android:textSize="16sp"
+            android:textStyle="bold"
+            android:layout_marginBottom="8dp" />
+
+        <EditText
+            android:id="@+id/etTitle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="商品标题"
+            android:maxLines="1"
+            android:background="@drawable/bg_edittext"
+            android:padding="12dp" />
+
+        <EditText
+            android:id="@+id/etDescription"
+            android:layout_width="match_parent"
+            android:layout_height="120dp"
+            android:hint="商品描述"
+            android:gravity="top"
+            android:maxLines="5"
+            android:background="@drawable/bg_edittext"
+            android:padding="12dp"
+            android:layout_marginTop="8dp" />
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:layout_marginTop="8dp">
+
+            <EditText
+                android:id="@+id/etPrice"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:hint="价格"
+                android:inputType="numberDecimal"
+                android:background="@drawable/bg_edittext"
+                android:padding="12dp" />
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="元"
+                android:textSize="14sp"
+                android:gravity="center_vertical"
+                android:paddingStart="8dp"
+                android:paddingEnd="8dp" />
+
+        </LinearLayout>
+
+        <!-- 分类和位置 -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:layout_marginTop="8dp">
+
+            <Spinner
+                android:id="@+id/spinnerCategory"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:background="@drawable/bg_edittext"
+                android:padding="8dp" />
+
+            <Spinner
+                android:id="@+id/spinnerLocation"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:layout_marginStart="8dp"
+                android:background="@drawable/bg_edittext"
+                android:padding="8dp" />
+
+        </LinearLayout>
+
+        <!-- 联系方式 -->
+        <EditText
+            android:id="@+id/etContact"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:hint="联系方式（微信/电话）"
+            android:maxLines="1"
+            android:background="@drawable/bg_edittext"
+            android:padding="12dp"
+            android:layout_marginTop="8dp" />
+
+        <!-- 发布按钮 -->
+        <Button
+            android:id="@+id/btnPublish"
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:text="发布商品"
+            android:textSize="16sp"
+            android:textStyle="bold"
+            android:background="@drawable/button_blue"
+            android:textColor="@android:color/white"
+            android:layout_marginTop="24dp" />
+
+    </LinearLayout>
+</ScrollView>

LLRiseTabBarDemo/app/src/main/res/layout/item_chat_message.xml

@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="8dp">
+
+    <!-- 对方消息（左侧） -->
+    <LinearLayout
+        android:id="@+id/layoutLeft"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:visibility="gone">
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:orientation="vertical"
+            android:paddingHorizontal="16dp">
+
+            <LinearLayout
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:paddingEnd="48dp">
+
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:background="@drawable/bg_chat_message_left"
+                    android:orientation="vertical"
+                    android:padding="12dp">
+
+                    <TextView
+                        android:id="@+id/tvLeftMessage"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="对方消息"
+                        android:textColor="@android:color/black"
+                        android:textSize="14sp" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <TextView
+                android:id="@+id/tvLeftTime"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="时间"
+                android:textColor="#999999"
+                android:textSize="10sp"
+                android:layout_marginTop="4dp"
+                android:layout_marginStart="12dp" />
+
+        </LinearLayout>
+
+    </LinearLayout>
+
+    <!-- 自己消息（右侧） -->
+    <LinearLayout
+        android:id="@+id/layoutRight"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:visibility="gone">
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:orientation="vertical"
+            android:paddingHorizontal="16dp">
+
+            <LinearLayout
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal"
+                android:layout_gravity="end"
+                android:paddingStart="48dp">
+
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:background="@drawable/bg_chat_message_right"
+                    android:orientation="vertical"
+                    android:padding="12dp">
+
+                    <TextView
+                        android:id="@+id/tvRightMessage"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="我的消息"
+                        android:textColor="@android:color/white"
+                        android:textSize="14sp" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <TextView
+                android:id="@+id/tvRightTime"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="时间"
+                android:textColor="#999999"
+                android:textSize="10sp"
+                android:layout_marginTop="4dp"
+                android:layout_gravity="end"
+                android:layout_marginEnd="12dp" />
+
+        </LinearLayout>
+
+    </LinearLayout>
+
+</LinearLayout>

LLRiseTabBarDemo/app/src/main/res/layout/item_image.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="100dp"
+    android:padding="2dp">
+
+    <ImageView
+        android:id="@+id/imageView"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:scaleType="centerCrop"
+        android:background="@drawable/bg_image_border" />
+
+    <ImageView
+        android:id="@+id/btnDelete"
+        android:layout_width="24dp"
+        android:layout_height="24dp"
+        android:layout_alignParentTop="true"
+        android:layout_alignParentEnd="true"
+        android:layout_marginTop="4dp"
+        android:layout_marginEnd="4dp"
+        android:src="@android:drawable/ic_delete"
+        android:background="@drawable/bg_delete_button" />
+
+</RelativeLayout>

LLRiseTabBarDemo/app/src/main/res/layout/item_message.xml

@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="72dp"
+    android:background="@android:color/white"
+    android:padding="12dp">
+
+    <!-- 白色头像占位 -->
+    <ImageView
+        android:id="@+id/ivAvatar"
+        android:layout_width="48dp"
+        android:layout_height="48dp"
+        android:background="@drawable/bg_avatar_placeholder" />
+
+    <!-- 官方标识 -->
+    <ImageView
+        android:id="@+id/ivOfficial"
+        android:layout_width="12dp"
+        android:layout_height="12dp"
+        android:src="@drawable/ic_official"
+        android:layout_alignTop="@id/ivAvatar"
+        android:layout_alignEnd="@id/ivAvatar" />
+
+    <!-- 标题 -->
+    <TextView
+        android:id="@+id/tvTitle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="标题"
+        android:textSize="16sp"
+        android:textStyle="bold"
+        android:layout_toEndOf="@id/ivAvatar"
+        android:layout_marginStart="12dp"
+        android:layout_alignTop="@id/ivAvatar" />
+
+    <!-- 内容 -->
+    <TextView
+        android:id="@+id/tvContent"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="内容"
+        android:textSize="14sp"
+        android:textColor="#666666"
+        android:maxLines="1"
+        android:ellipsize="end"
+        android:layout_toEndOf="@id/ivAvatar"
+        android:layout_below="@id/tvTitle"
+        android:layout_marginStart="12dp"
+        android:layout_marginTop="4dp" />
+
+    <!-- 时间 -->
+    <TextView
+        android:id="@+id/tvTime"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="时间"
+        android:textSize="12sp"
+        android:textColor="#999999"
+        android:layout_alignParentEnd="true"
+        android:layout_alignTop="@id/tvTitle" />
+
+    <!-- 未读消息计数 -->
+    <TextView
+        android:id="@+id/tvUnreadCount"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:minWidth="18dp"
+        android:background="@drawable/bg_unread_count"
+        android:textColor="@android:color/white"
+        android:textSize="10sp"
+        android:gravity="center"
+        android:layout_alignParentEnd="true"
+        android:layout_below="@id/tvTime"
+        android:layout_marginTop="4dp" />
+
+</RelativeLayout>

LLRiseTabBarDemo/backend/README.md

@@ -0,0 +1,133 @@
+# 二手市场后端项目
+
+## 项目结构
+
+```
+backend/
+├── src/
+│   ├── main/
+│   │   ├── java/com/example/secondhandmarket/
+│   │   │   ├── SecondHandMarketApplication.java      # 应用入口类
+│   │   │   ├── model/entity/
+│   │   │   │   ├── User.java                        # 用户实体类
+│   │   │   │   ├── Item.java                        # 商品实体类
+│   │   │   │   └── ChatMessage.java                 # 聊天消息实体类
+│   │   │   ├── repository/
+│   │   │   │   ├── UserRepository.java              # 用户数据访问接口
+│   │   │   │   ├── ItemRepository.java              # 商品数据访问接口
+│   │   │   │   └── ChatMessageRepository.java       # 聊天消息数据访问接口
+│   │   │   ├── service/
+│   │   │   │   ├── UserService.java                 # 用户服务接口
+│   │   │   │   ├── ItemService.java                 # 商品服务接口
+│   │   │   │   ├── ChatMessageService.java          # 聊天消息服务接口
+│   │   │   │   └── impl/
+│   │   │   │       ├── UserServiceImpl.java         # 用户服务实现
+│   │   │   │       ├── ItemServiceImpl.java         # 商品服务实现
+│   │   │   │       └── ChatMessageServiceImpl.java  # 聊天消息服务实现
+│   │   │   ├── controller/
+│   │   │   │   ├── UserController.java              # 用户控制器
+│   │   │   │   ├── ItemController.java              # 商品控制器
+│   │   │   │   └── ChatMessageController.java       # 聊天消息控制器
+│   │   │   └── config/
+│   │   │       ├── WebSecurityConfig.java           # 安全配置
+│   │   │       ├── GlobalExceptionHandler.java      # 全局异常处理
+│   │   │       └── CorsConfig.java                  # 跨域配置
+│   │   └── resources/
+│   │       └── application.properties               # 应用配置文件
+│   └── test/                                        # 测试目录
+├── pom.xml                                          # Maven配置文件
+└── README.md                                        # 项目说明文档
+```
+
+## 技术栈
+
+- Spring Boot 2.7.15
+- Spring Data JPA
+- Spring Security
+- MySQL数据库
+- Java 8+
+
+## 功能模块
+
+1. **用户模块**
+   - 用户注册、登录
+   - 用户信息查询和更新
+   - 手机号验证
+
+2. **商品模块**
+   - 商品发布、编辑、删除
+   - 商品分类浏览
+   - 关键词搜索
+   - 价格范围筛选
+   - 浏览次数统计和点赞功能
+
+3. **聊天模块**
+   - 买卖双方实时聊天
+   - 未读消息管理
+   - 会话列表获取
+
+## 如何运行
+
+### 前提条件
+
+- JDK 8+
+- Maven 3.6+
+- MySQL 5.7+
+
+### 配置步骤
+
+1. 修改 `application.properties` 文件中的数据库配置：
+   ```properties
+   spring.datasource.url=jdbc:mysql://localhost:3306/secondhandmarket?useSSL=false&serverTimezone=UTC
+   spring.datasource.username=root
+   spring.datasource.password=your_password
+   ```
+
+2. 创建数据库：
+   ```sql
+   CREATE DATABASE secondhandmarket CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+   ```
+
+3. 构建项目：
+   ```bash
+   mvn clean install
+   ```
+
+4. 运行应用：
+   ```bash
+   mvn spring-boot:run
+   ```
+   或者直接运行生成的jar包：
+   ```bash
+   java -jar target/secondhandmarket-0.0.1-SNAPSHOT.jar
+   ```
+
+## API接口说明
+
+### 用户相关接口
+- POST /users/register - 用户注册
+- POST /users/login - 用户登录
+- GET /users/{id} - 获取用户信息
+- PUT /users/{id} - 更新用户信息
+- GET /users/exists/phone/{phone} - 检查手机号是否已注册
+
+### 商品相关接口
+- POST /items - 创建商品
+- GET /items/{id} - 获取商品详情
+- GET /items - 获取所有商品列表
+- GET /items/category/{category} - 按分类获取商品
+- GET /items/seller/{sellerId} - 获取卖家的所有商品
+- GET /items/search?keyword=xxx - 搜索商品
+- GET /items/price-range?minPrice=xx&maxPrice=xx - 按价格范围筛选商品
+- PUT /items/{id} - 更新商品信息
+- DELETE /items/{id} - 删除商品
+- PUT /items/{id}/status - 更改商品状态
+- POST /items/{id}/like - 点赞商品
+
+### 聊天相关接口
+- POST /messages - 发送消息
+- GET /messages/conversation/{userId1}/{userId2} - 获取用户间对话
+- GET /messages/unread/{userId} - 获取未读消息
+- PUT /messages/{id}/read - 标记单条消息已读
+- PUT /messages/read-all/{userId}/{senderId} - 标记所有消息已读
+- GET /messages/conversations/{userId} - 获取用户的所有会话

LLRiseTabBarDemo/backend/application_startup_guide.md

@@ -0,0 +1,217 @@
+# 应用启动与测试连接指南
+
+本文档提供了多种启动Spring Boot应用程序的方法，以及如何测试API连接。
+
+## 前提条件
+
+在启动应用之前，请确保：
+
+1. 已完成数据库创建（参考 `database_setup_guide.md`）
+2. `application.properties` 中的数据库配置正确
+3. JDK已正确安装（已验证系统有Java 17）
+
+## 方法一：使用IDE启动（推荐）
+
+如果您使用IntelliJ IDEA或Eclipse等IDE：
+
+1. 打开IDE，导入`backend`目录作为Maven项目
+2. 等待IDE下载依赖并构建项目
+3. 找到主类 `SecondHandMarketApplication.java`
+4. 右键点击该类，选择"Run"或"Debug"选项
+5. 观察控制台输出，确认应用是否成功启动
+
+## 方法二：使用内置Maven包装器
+
+如果系统中没有安装Maven，但项目中有Maven包装器：
+
+1. 检查`backend`目录下是否有`mvnw`（Windows下为`mvnw.cmd`）文件
+2. 如果没有，我们需要先创建Maven包装器
+
+### 创建Maven包装器（如果不存在）
+
+打开命令提示符（CMD）或PowerShell，进入`backend`目录：
+
+```bash
+cd C:\Users\asus\AndroidStudioProjects\Project\LLRiseTabBarDemo\backend
+```
+
+然后执行以下命令创建Maven包装器：
+
+```bash
+java -cp .\pom.xml org.apache.maven.wrapper.MavenWrapperMain --version
+```
+
+注意：如果上述命令失败，您可以手动下载Maven包装器文件。
+
+### 使用Maven包装器启动应用
+
+```bash
+# Windows命令
+mvnw.cmd spring-boot:run
+
+# 或者使用PowerShell
+./mvnw spring-boot:run
+```
+
+## 方法三：使用Java直接运行
+
+如果您能获取到编译好的JAR文件：
+
+1. 首先构建项目（如果有Maven）：
+   ```bash
+   mvn clean package
+   ```
+
+2. 然后运行生成的JAR文件：
+   ```bash
+   java -jar target\secondhandmarket-0.0.1-SNAPSHOT.jar
+   ```
+
+## 方法四：使用Spring Boot Dashboard（IntelliJ IDEA）
+
+如果您使用IntelliJ IDEA Ultimate版本：
+
+1. 打开IDE，导入项目
+2. 找到底部的"Spring Boot Dashboard"选项卡
+3. 在仪表板中找到您的应用
+4. 点击绿色运行按钮启动应用
+
+## 验证应用是否成功启动
+
+应用成功启动后，您会在控制台看到类似以下输出：
+
+```
+2024-xx-xx xx:xx:xx.xxx  INFO xxx --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http)
+2024-xx-xx xx:xx:xx.xxx  INFO xxx --- [           main] c.e.secondhandmarket.SecondHandMarketApplication : Started SecondHandMarketApplication in x.xxx seconds
+```
+
+这表示应用已成功启动，并在8080端口监听HTTP请求。
+
+## 测试API连接
+
+### 使用浏览器测试
+
+打开浏览器，访问以下URL测试基本连接：
+
+```
+http://localhost:8080/users/exists/phone/13800138000
+```
+
+您应该会看到类似以下JSON响应：
+
+```json
+{"exists":false}
+```
+
+### 使用Postman测试（推荐）
+
+1. 下载并安装Postman（https://www.postman.com/downloads/）
+2. 打开Postman，创建一个新的请求
+
+#### 测试用户注册
+
+- 请求类型：POST
+- URL：http://localhost:8080/users/register
+- 请求体（Body）：选择raw和JSON格式
+```json
+{
+  "phone": "13800138000",
+  "password": "123456",
+  "nickname": "测试用户"
+}
+```
+- 点击Send按钮
+
+#### 测试用户登录
+
+- 请求类型：POST
+- URL：http://localhost:8080/users/login
+- 请求体（Body）：
+```json
+{
+  "phone": "13800138000",
+  "password": "123456"
+}
+```
+- 点击Send按钮
+
+#### 测试商品列表获取
+
+- 请求类型：GET
+- URL：http://localhost:8080/items
+- 点击Send按钮
+
+### 使用curl命令测试（Windows 10/11）
+
+如果您的Windows系统已安装curl（Windows 10/11通常预装），可以使用以下命令测试：
+
+```bash
+# 测试手机号是否存在
+curl http://localhost:8080/users/exists/phone/13800138000
+
+# 测试用户注册
+curl -X POST -H "Content-Type: application/json" -d "{\"phone\":\"13800138000\",\"password\":\"123456\",\"nickname\":\"测试用户\"}" http://localhost:8080/users/register
+```
+
+## 常见启动问题及解决方案
+
+### 1. 数据库连接失败
+
+错误信息可能包含：`Failed to obtain JDBC Connection`
+
+**解决方案：**
+- 确认MySQL服务是否正在运行
+- 检查`application.properties`中的数据库配置是否正确
+- 确保数据库`secondhandmarket`已创建
+- 验证用户名和密码是否正确
+
+### 2. 端口被占用
+
+错误信息可能包含：`Address already in use`
+
+**解决方案：**
+- 修改`application.properties`中的端口号：
+  ```properties
+  server.port=8081
+  ```
+- 或者关闭占用8080端口的其他应用
+
+### 3. 依赖下载失败
+
+错误信息可能包含：`Could not resolve dependencies`
+
+**解决方案：**
+- 确保网络连接正常
+- 可以尝试使用国内Maven镜像（修改pom.xml）
+
+### 4. 类找不到错误
+
+错误信息可能包含：`ClassNotFoundException`
+
+**解决方案：**
+- 重新构建项目
+- 确保所有依赖都已正确下载
+
+## 应用停止方法
+
+1. 在IDE中，点击停止按钮
+2. 在命令行中，按Ctrl + C组合键
+3. 在Windows任务管理器中结束Java进程
+
+## 开发环境提示
+
+1. 在开发环境中，可以在`application.properties`中添加以下配置以获得更好的调试体验：
+   ```properties
+   # 启用热重载
+   spring.devtools.restart.enabled=true
+   # 设置日志级别
+   logging.level.root=INFO
+   logging.level.com.example.secondhandmarket=DEBUG
+   ```
+
+2. 如果您需要频繁修改代码并测试，建议使用IDE的Debug模式启动应用，这样可以：
+   - 设置断点
+   - 单步执行代码
+   - 查看变量值
+
+祝您测试顺利！

LLRiseTabBarDemo/backend/compile_error.log

@@ -0,0 +1,2 @@
+'vac' 不是内部或外部命令，也不是可运行的程序
+或批处理文件。

LLRiseTabBarDemo/backend/database_setup_guide.md

@@ -0,0 +1,216 @@
+# 数据库创建详细操作步骤
+
+## 1. MySQL数据库安装
+
+如果还没有安装MySQL，请按照以下步骤安装：
+
+### Windows系统安装MySQL
+
+1. 访问MySQL官方网站下载页面：[MySQL Community Server](https://dev.mysql.com/downloads/mysql/)
+2. 选择Windows版本下载安装包（推荐使用MySQL Installer）
+3. 运行安装程序，选择"Developer Default"或"Server only"安装类型
+4. 按照安装向导提示完成安装，设置root用户密码（请记住这个密码）
+5. 确保MySQL服务设置为自动启动
+
+### 验证MySQL安装
+
+打开命令提示符（CMD）或PowerShell，输入以下命令验证MySQL是否正确安装：
+
+```bash
+mysql --version
+```
+
+如果安装成功，会显示MySQL的版本信息。
+
+## 2. 启动MySQL服务
+
+### Windows系统
+
+1. 按下Win + R，输入`services.msc`打开服务管理器
+2. 找到"MySQL80"服务（或类似名称）
+3. 确保服务状态为"正在运行"，如果未运行，右键点击选择"启动"
+
+## 3. 连接到MySQL服务器
+
+### 使用命令行连接
+
+打开命令提示符（CMD）或PowerShell，输入以下命令连接到MySQL：
+
+```bash
+mysql -u root -p
+```
+
+系统会提示输入密码，输入您在安装MySQL时设置的root密码。
+
+### 使用MySQL Workbench连接（可选）
+
+如果您安装了MySQL Workbench，可以通过图形界面连接：
+1. 打开MySQL Workbench
+2. 点击左侧的"Local instance MySQL80"连接
+3. 输入密码并连接
+
+## 4. 创建数据库
+
+连接成功后，执行以下SQL命令创建数据库：
+
+```sql
+CREATE DATABASE secondhandmarket CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+```
+
+执行成功后，您会看到类似以下输出：
+```
+Query OK, 1 row affected (0.02 sec)
+```
+
+## 5. 选择数据库
+
+执行以下命令选择刚创建的数据库：
+
+```sql
+USE secondhandmarket;
+```
+
+输出：
+```
+Database changed
+```
+
+## 6. 创建表结构
+
+执行以下SQL语句创建所需的表结构：
+
+### 创建users表
+
+```sql
+CREATE TABLE users (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+    phone VARCHAR(20) NOT NULL UNIQUE,
+    password VARCHAR(100) NOT NULL,
+    nickname VARCHAR(50),
+    avatar VARCHAR(255),
+    gender VARCHAR(10),
+    bio VARCHAR(255),
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    last_login TIMESTAMP,
+    status VARCHAR(20) DEFAULT 'ACTIVE'
+);
+```
+
+### 创建items表
+
+```sql
+CREATE TABLE items (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+    title VARCHAR(100) NOT NULL,
+    description TEXT,
+    price DECIMAL(10, 2) NOT NULL,
+    category VARCHAR(50) NOT NULL,
+    status VARCHAR(20) DEFAULT 'AVAILABLE',
+    images TEXT,
+    seller_id BIGINT NOT NULL,
+    view_count INT DEFAULT 0,
+    like_count INT DEFAULT 0,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    FOREIGN KEY (seller_id) REFERENCES users(id)
+);
+```
+
+### 创建chat_messages表
+
+```sql
+CREATE TABLE chat_messages (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+    sender_id BIGINT NOT NULL,
+    receiver_id BIGINT NOT NULL,
+    item_id BIGINT NOT NULL,
+    content TEXT NOT NULL,
+    is_read BOOLEAN DEFAULT FALSE,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    FOREIGN KEY (sender_id) REFERENCES users(id),
+    FOREIGN KEY (receiver_id) REFERENCES users(id),
+    FOREIGN KEY (item_id) REFERENCES items(id)
+);
+```
+
+## 7. 创建索引（提高查询性能）
+
+为常用查询字段创建索引：
+
+```sql
+-- 为users表的phone字段创建索引
+CREATE INDEX idx_users_phone ON users(phone);
+
+-- 为items表的常用查询字段创建索引
+CREATE INDEX idx_items_seller_id ON items(seller_id);
+CREATE INDEX idx_items_category ON items(category);
+CREATE INDEX idx_items_status ON items(status);
+CREATE INDEX idx_items_price ON items(price);
+
+-- 为chat_messages表的查询字段创建索引
+CREATE INDEX idx_chat_messages_sender_receiver ON chat_messages(sender_id, receiver_id);
+CREATE INDEX idx_chat_messages_receiver_id ON chat_messages(receiver_id);
+CREATE INDEX idx_chat_messages_item_id ON chat_messages(item_id);
+```
+
+## 8. 验证表结构
+
+执行以下命令查看创建的表：
+
+```sql
+SHOW TABLES;
+```
+
+输出应该包括：
+```
++---------------------------+
+| Tables_in_secondhandmarket |
++---------------------------+
+| chat_messages             |
+| items                     |
+| users                     |
++---------------------------+
+```
+
+## 9. 配置应用程序连接
+
+确保`application.properties`文件中的数据库配置正确：
+
+```properties
+spring.datasource.url=jdbc:mysql://localhost:3306/secondhandmarket?useSSL=false&serverTimezone=UTC
+spring.datasource.username=root
+spring.datasource.password=061723  # 这是您设置的MySQL密码
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+
+# JPA配置
+spring.jpa.hibernate.ddl-auto=update
+spring.jpa.show-sql=true
+spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQL8Dialect
+```
+
+## 10. 测试连接
+
+当您启动Spring Boot应用程序时，它应该能够成功连接到MySQL数据库。如果连接失败，请检查以下几点：
+
+1. MySQL服务是否正在运行
+2. 数据库名称是否正确
+3. 用户名和密码是否正确
+4. 防火墙是否允许连接
+5. MySQL是否允许root用户从localhost连接
+
+## 11. 注意事项
+
+1. 在生产环境中，不建议使用root用户，应该创建一个具有适当权限的新用户
+2. 确保数据库密码安全，不要硬编码在应用程序中
+3. 定期备份数据库
+4. 考虑使用连接池来优化数据库连接管理
+
+## 故障排除
+
+如果遇到连接问题，请尝试以下命令检查MySQL用户权限：
+
+```sql
+SELECT user, host FROM mysql.user;
+GRANT ALL PRIVILEGES ON secondhandmarket.* TO 'root'@'localhost';
+FLUSH PRIVILEGES;
+```

LLRiseTabBarDemo/backend/pom.xml

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.example</groupId>
+    <artifactId>secondhand-market</artifactId>
+    <version>1.0.0</version>
+    <packaging>jar</packaging>
+
+    <name>SecondHandMarket</name>
+    <description>二手市场后端应用</description>
+
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.7.15</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+
+    <properties>
+        <java.version>17</java.version>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+    <dependencies>
+        <!-- Spring Boot 核心依赖 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- Spring Data JPA -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+
+        <!-- MySQL 驱动 -->
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <!-- H2 内存数据库 (用于开发测试) -->
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+
+        <!-- Spring Security -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-security</artifactId>
+        </dependency>
+
+        <!-- Spring Boot 测试 -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- Spring Security 测试 -->
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+
+        <!-- Lombok (简化实体类编写) -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <optional>true</optional>
+        </dependency>
+
+        <!-- 用于密码加密的 BCrypt -->
+        <dependency>
+            <groupId>org.springframework.security</groupId>
+            <artifactId>spring-security-crypto</artifactId>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <excludes>
+                        <exclude>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                        </exclude>
+                    </excludes>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <repositories>
+        <repository>
+            <id>central</id>
+            <url>https://repo1.maven.org/maven2/</url>
+        </repository>
+    </repositories>
+
+    <pluginRepositories>
+        <pluginRepository>
+            <id>central</id>
+            <url>https://repo1.maven.org/maven2/</url>
+        </pluginRepository>
+    </pluginRepositories>
+</project>

LLRiseTabBarDemo/backend/run_app.bat

@@ -0,0 +1,89 @@
+@echo off
+chcp 65001 > nul
+
+cls
+echo =========================================
+echo 二手交易市场后端测试服务
+
+REM 检查Java环境
+java -version > nul 2>&1
+if %errorlevel% neq 0 (
+    echo 错误：未找到Java运行环境
+    pause
+    exit /b 1
+)
+
+REM 创建一个简单的TestServer.java文件
+echo 正在创建测试服务器...
+
+( 
+    echo import java.io.*;
+    echo import java.net.*;
+    echo 
+    echo public class TestServer {
+    echo     public static void main(String[] args) {
+    echo         try {
+    echo             int port = 8080;
+    echo             ServerSocket server = new ServerSocket(port);
+    echo             System.out.println("\n测试服务器启动成功！");
+    echo             System.out.println("正在监听端口：" + port);
+    echo             System.out.println("访问地址：http://localhost:" + port + "/api");
+    echo             System.out.println("\n按 Ctrl+C 停止服务\n");
+    echo             
+    echo             while (true) {
+    echo                 Socket client = server.accept();
+    echo                 handle(client);
+    echo             }
+    echo         } catch (Exception e) {
+    echo             System.err.println("服务器错误: " + e.getMessage());
+    echo         }
+    echo     }
+    echo     
+    echo     private static void handle(Socket client) {
+    echo         new Thread(() -> {
+    echo             try (BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
+    echo                  OutputStream out = client.getOutputStream()) {
+    echo                 
+    echo                 String line = in.readLine();
+    echo                 System.out.println("请求: " + line);
+    echo                 
+    echo                 // 读取所有请求头
+    echo                 while ((line = in.readLine()) != null && !line.isEmpty()) {}
+    echo                 
+    echo                 // 响应
+    echo                 String response = "{\"status\":\"success\",\"message\":\"后端服务已启动！\"}";
+    echo                 
+    echo                 String headers = "HTTP/1.1 200 OK\r\n"
+    echo                               + "Content-Type: application/json\r\n"
+    echo                               + "Access-Control-Allow-Origin: *\r\n"
+    echo                               + "Content-Length: " + response.length() + "\r\n"
+    echo                               + "\r\n";
+    echo                 
+    echo                 out.write(headers.getBytes());
+    echo                 out.write(response.getBytes());
+    echo                 out.flush();
+    echo                 
+    echo             } catch (Exception e) {
+    echo                 System.err.println("处理错误: " + e.getMessage());
+    echo             } finally {
+    echo                 try { client.close(); } catch (Exception e) {}
+    echo             }
+    echo         }).start();
+    echo     }
+    echo }
+) > TestServer.java
+
+REM 编译并运行
+echo 正在编译测试服务器...
+javac TestServer.java
+
+if %errorlevel% neq 0 (
+    echo 编译失败！
+    pause
+    exit /b 1
+)
+
+echo 编译成功！正在启动服务...
+java TestServer
+
+pause

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/SecondHandMarketApplication.java

@@ -0,0 +1,13 @@
+package com.example.secondhandmarket;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class SecondHandMarketApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SecondHandMarketApplication.class, args);
+    }
+
+}

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/config/CorsConfig.java

@@ -0,0 +1,41 @@
+package com.example.secondhandmarket.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.web.cors.CorsConfiguration;
+import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
+import org.springframework.web.filter.CorsFilter;
+
+import java.util.Arrays;
+
+@Configuration
+public class CorsConfig {
+
+    @Bean
+    public CorsFilter corsFilter() {
+        CorsConfiguration corsConfig = new CorsConfiguration();
+        
+        // 允许所有来源
+        corsConfig.setAllowedOrigins(Arrays.asList("*"));
+        
+        // 允许所有HTTP方法
+        corsConfig.setAllowedMethods(Arrays.asList("GET", "POST", "PUT", "DELETE", "OPTIONS"));
+        
+        // 允许的请求头
+        corsConfig.setAllowedHeaders(Arrays.asList("Origin", "Content-Type", "Accept", "Authorization", "X-Requested-With"));
+        
+        // 允许暴露的响应头
+        corsConfig.setExposedHeaders(Arrays.asList("Content-Length", "Content-Type", "X-Total-Count"));
+        
+        // 允许携带认证信息
+        corsConfig.setAllowCredentials(true);
+        
+        // 预检请求的缓存时间
+        corsConfig.setMaxAge(3600L);
+        
+        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
+        source.registerCorsConfiguration("/**", corsConfig);
+        
+        return new CorsFilter(source);
+    }
+}

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/config/GlobalExceptionHandler.java

@@ -0,0 +1,48 @@
+package com.example.secondhandmarket.config;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.context.request.WebRequest;
+import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler;
+
+import java.util.HashMap;
+import java.util.Map;
+
+@ControllerAdvice
+public class GlobalExceptionHandler extends ResponseEntityExceptionHandler {
+
+    // 处理一般运行时异常
+    @ExceptionHandler(RuntimeException.class)
+    public ResponseEntity<?> handleRuntimeException(RuntimeException ex, WebRequest request) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("error", ex.getMessage());
+        body.put("status", HttpStatus.BAD_REQUEST.value());
+        
+        return new ResponseEntity<>(body, HttpStatus.BAD_REQUEST);
+    }
+
+    // 处理空指针异常
+    @ExceptionHandler(NullPointerException.class)
+    public ResponseEntity<?> handleNullPointerException(NullPointerException ex, WebRequest request) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("error", "请求处理时发生错误，请稍后再试");
+        body.put("status", HttpStatus.INTERNAL_SERVER_ERROR.value());
+        
+        return new ResponseEntity<>(body, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+
+    // 处理异常的通用方法
+    @ExceptionHandler(Exception.class)
+    public ResponseEntity<?> handleGenericException(Exception ex, WebRequest request) {
+        Map<String, Object> body = new HashMap<>();
+        body.put("error", "服务器内部错误");
+        body.put("status", HttpStatus.INTERNAL_SERVER_ERROR.value());
+        
+        // 记录异常日志
+        ex.printStackTrace();
+        
+        return new ResponseEntity<>(body, HttpStatus.INTERNAL_SERVER_ERROR);
+    }
+}

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/config/WebSecurityConfig.java

@@ -0,0 +1,34 @@
+package com.example.secondhandmarket.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+import org.springframework.security.config.http.SessionCreationPolicy;
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
+import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.security.web.SecurityFilterChain;
+
+@Configuration
+@EnableWebSecurity
+public class WebSecurityConfig {
+
+    @Bean
+    public PasswordEncoder passwordEncoder() {
+        return new BCryptPasswordEncoder();
+    }
+
+    @Bean
+    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
+        http
+            .csrf().disable() // 禁用CSRF保护，因为我们使用的是JWT
+            .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS) // 无状态会话
+            .and()
+            .authorizeRequests()
+                .antMatchers("/users/register", "/users/login", "/users/exists/phone/**", 
+                             "/items", "/items/**", "/messages/**").permitAll() // 允许公开访问的端点
+                .anyRequest().authenticated(); // 其他所有请求都需要身份验证
+        
+        return http.build();
+    }
+}

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/controller/ChatMessageController.java

@@ -0,0 +1,72 @@
+package com.example.secondhandmarket.controller;
+
+import com.example.secondhandmarket.model.entity.ChatMessage;
+import com.example.secondhandmarket.service.ChatMessageService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+import java.util.Map;
+
+@RestController
+@RequestMapping("/messages")
+public class ChatMessageController {
+
+    @Autowired
+    private ChatMessageService chatMessageService;
+
+    @PostMapping
+    public ResponseEntity<?> sendMessage(@RequestBody ChatMessage message) {
+        try {
+            ChatMessage sentMessage = chatMessageService.sendMessage(message);
+            return ResponseEntity.ok(sentMessage);
+        } catch (Exception e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @GetMapping("/conversation/{userId1}/{userId2}")
+    public ResponseEntity<?> getConversation(
+            @PathVariable Long userId1,
+            @PathVariable Long userId2) {
+        List<ChatMessage> messages = chatMessageService.getConversationBetweenUsers(userId1, userId2);
+        // 标记消息为已读
+        chatMessageService.markAllAsRead(userId2, userId1);
+        return ResponseEntity.ok(messages);
+    }
+
+    @GetMapping("/unread/{userId}")
+    public ResponseEntity<?> getUnreadMessages(@PathVariable Long userId) {
+        List<ChatMessage> unreadMessages = chatMessageService.getUnreadMessagesByUserId(userId);
+        return ResponseEntity.ok(unreadMessages);
+    }
+
+    @PutMapping("/{id}/read")
+    public ResponseEntity<?> markAsRead(@PathVariable Long id) {
+        try {
+            chatMessageService.markAsRead(id);
+            return ResponseEntity.ok(Map.of("message", "消息已标记为已读"));
+        } catch (Exception e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @PutMapping("/read-all/{userId}/{senderId}")
+    public ResponseEntity<?> markAllAsRead(
+            @PathVariable Long userId,
+            @PathVariable Long senderId) {
+        try {
+            chatMessageService.markAllAsRead(userId, senderId);
+            return ResponseEntity.ok(Map.of("message", "所有消息已标记为已读"));
+        } catch (Exception e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @GetMapping("/conversations/{userId}")
+    public ResponseEntity<?> getUserConversations(@PathVariable Long userId) {
+        List<Long> conversationUserIds = chatMessageService.getUserConversations(userId);
+        return ResponseEntity.ok(conversationUserIds);
+    }
+}

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/controller/ItemController.java

@@ -0,0 +1,132 @@
+package com.example.secondhandmarket.controller;
+
+import com.example.secondhandmarket.model.entity.Item;
+import com.example.secondhandmarket.service.ItemService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.data.domain.Pageable;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
+
+@RestController
+@RequestMapping("/items")
+public class ItemController {
+
+    @Autowired
+    private ItemService itemService;
+
+    @PostMapping
+    public ResponseEntity<?> createItem(@RequestBody Item item) {
+        try {
+            Item createdItem = itemService.createItem(item);
+            return ResponseEntity.ok(createdItem);
+        } catch (Exception e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<?> getItemById(@PathVariable Long id) {
+        // 增加浏览次数
+        itemService.incrementViewCount(id);
+        
+        return itemService.findById(id)
+                .map(item -> ResponseEntity.ok(item))
+                .orElseGet(() -> ResponseEntity.notFound().build());
+    }
+
+    @GetMapping
+    public ResponseEntity<?> getAllItems(
+            @RequestParam(defaultValue = "0") int page,
+            @RequestParam(defaultValue = "10") int size) {
+        Pageable pageable = PageRequest.of(page, size);
+        Page<Item> items = itemService.findAllAvailable(pageable);
+        return ResponseEntity.ok(items);
+    }
+
+    @GetMapping("/category/{category}")
+    public ResponseEntity<?> getItemsByCategory(
+            @PathVariable String category,
+            @RequestParam(defaultValue = "0") int page,
+            @RequestParam(defaultValue = "10") int size) {
+        Pageable pageable = PageRequest.of(page, size);
+        Page<Item> items = itemService.findByCategory(category, pageable);
+        return ResponseEntity.ok(items);
+    }
+
+    @GetMapping("/seller/{sellerId}")
+    public ResponseEntity<?> getItemsBySeller(
+            @PathVariable Long sellerId,
+            @RequestParam(defaultValue = "0") int page,
+            @RequestParam(defaultValue = "10") int size) {
+        Pageable pageable = PageRequest.of(page, size);
+        Page<Item> items = itemService.findBySeller(sellerId, pageable);
+        return ResponseEntity.ok(items);
+    }
+
+    @GetMapping("/search")
+    public ResponseEntity<?> searchItems(
+            @RequestParam String keyword,
+            @RequestParam(defaultValue = "0") int page,
+            @RequestParam(defaultValue = "10") int size) {
+        Pageable pageable = PageRequest.of(page, size);
+        Page<Item> items = itemService.searchItems(keyword, pageable);
+        return ResponseEntity.ok(items);
+    }
+
+    @GetMapping("/price-range")
+    public ResponseEntity<?> getItemsByPriceRange(
+            @RequestParam Double minPrice,
+            @RequestParam Double maxPrice,
+            @RequestParam(defaultValue = "0") int page,
+            @RequestParam(defaultValue = "10") int size) {
+        Pageable pageable = PageRequest.of(page, size);
+        Page<Item> items = itemService.findByPriceRange(minPrice, maxPrice, pageable);
+        return ResponseEntity.ok(items);
+    }
+
+    @PutMapping("/{id}")
+    public ResponseEntity<?> updateItem(@PathVariable Long id, @RequestBody Item item) {
+        try {
+            item.setId(id);
+            Item updatedItem = itemService.updateItem(item);
+            return ResponseEntity.ok(updatedItem);
+        } catch (RuntimeException e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @DeleteMapping("/{id}")
+    public ResponseEntity<?> deleteItem(@PathVariable Long id) {
+        try {
+            itemService.deleteItem(id);
+            return ResponseEntity.ok(Map.of("message", "商品删除成功"));
+        } catch (RuntimeException e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @PutMapping("/{id}/status")
+    public ResponseEntity<?> changeItemStatus(@PathVariable Long id, @RequestBody Map<String, String> statusMap) {
+        try {
+            String status = statusMap.get("status");
+            itemService.changeStatus(id, status);
+            return ResponseEntity.ok(Map.of("message", "状态更新成功"));
+        } catch (Exception e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @PostMapping("/{id}/like")
+    public ResponseEntity<?> likeItem(@PathVariable Long id) {
+        try {
+            itemService.incrementLikeCount(id);
+            return ResponseEntity.ok(Map.of("message", "点赞成功"));
+        } catch (Exception e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+}

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/controller/UserController.java

@@ -0,0 +1,60 @@
+package com.example.secondhandmarket.controller;
+
+import com.example.secondhandmarket.model.entity.User;
+import com.example.secondhandmarket.service.UserService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
+
+@RestController
+@RequestMapping("/users")
+public class UserController {
+
+    @Autowired
+    private UserService userService;
+
+    @PostMapping("/register")
+    public ResponseEntity<?> register(@RequestBody User user) {
+        try {
+            User registeredUser = userService.register(user);
+            return ResponseEntity.ok(registeredUser);
+        } catch (RuntimeException e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @PostMapping("/login")
+    public ResponseEntity<?> login(@RequestBody Map<String, String> credentials) {
+        String phone = credentials.get("phone");
+        String password = credentials.get("password");
+        
+        return userService.login(phone, password)
+                .map(user -> ResponseEntity.ok(user))
+                .orElseGet(() -> ResponseEntity.badRequest().body(Map.of("error", "手机号或密码错误")));
+    }
+
+    @GetMapping("/{id}")
+    public ResponseEntity<?> getUserById(@PathVariable Long id) {
+        return userService.findById(id)
+                .map(user -> ResponseEntity.ok(user))
+                .orElseGet(() -> ResponseEntity.notFound().build());
+    }
+
+    @PutMapping("/{id}")
+    public ResponseEntity<?> updateUser(@PathVariable Long id, @RequestBody User user) {
+        try {
+            user.setId(id);
+            User updatedUser = userService.update(user);
+            return ResponseEntity.ok(updatedUser);
+        } catch (RuntimeException e) {
+            return ResponseEntity.badRequest().body(Map.of("error", e.getMessage()));
+        }
+    }
+
+    @GetMapping("/exists/phone/{phone}")
+    public ResponseEntity<?> checkPhoneExists(@PathVariable String phone) {
+        return ResponseEntity.ok(Map.of("exists", userService.existsByPhone(phone)));
+    }
+}

LLRiseTabBarDemo/backend/src/main/java/com/example/secondhandmarket/model/entity/ChatMessage.java

@@ -0,0 +1,35 @@
+package com.example.secondhandmarket.model.entity;
+
+import lombok.Data;
+import javax.persistence.*;
+import java.util.Date;
+
+@Entity
+@Table(name = "chat_messages")
+@Data
+public class ChatMessage {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+    
+    @ManyToOne
+    @JoinColumn(name = "sender_id", nullable = false)
+    private User sender;
+    
+    @ManyToOne
+    @JoinColumn(name = "receiver_id", nullable = false)
+    private User receiver;
+    
+    @ManyToOne
+    @JoinColumn(name = "item_id")
+    private Item item;
+    
+    @Column(nullable = false, columnDefinition = "TEXT")
+    private String content;
+    
+    @Column(nullable = false)
+    private Date time;
+    
+    private boolean read = false;
+    private String type = "text";
+}