diff --git a/02OrangeSale/.idea/gradle.xml b/02OrangeSale/.idea/gradle.xml
index 4c3c1d4..861452f 100644
--- a/02OrangeSale/.idea/gradle.xml
+++ b/02OrangeSale/.idea/gradle.xml
@@ -8,6 +8,7 @@
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
         <option name="gradleHome" value="$PROJECT_DIR$/../../../java tool/AN_gradle/gradle-7.5" />
+        <option name="gradleJvm" value="Embedded JDK" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
diff --git a/02OrangeSale/.idea/misc.xml b/02OrangeSale/.idea/misc.xml
index bdd9278..fae0781 100644
--- a/02OrangeSale/.idea/misc.xml
+++ b/02OrangeSale/.idea/misc.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="jbr-11" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/02OrangeSale/app/build.gradle b/02OrangeSale/app/build.gradle
index f8b003b..8dcefa3 100644
--- a/02OrangeSale/app/build.gradle
+++ b/02OrangeSale/app/build.gradle
@@ -6,7 +6,7 @@ android {
     defaultConfig {
         applicationId "com.example.orangesale_02"
         minSdkVersion 23
-        targetSdkVersion 30
+        targetSdkVersion 31
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -17,6 +17,10 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
diff --git a/02OrangeSale/app/src/main/AndroidManifest.xml b/02OrangeSale/app/src/main/AndroidManifest.xml
index 6703f02..d3a0dc3 100644
--- a/02OrangeSale/app/src/main/AndroidManifest.xml
+++ b/02OrangeSale/app/src/main/AndroidManifest.xml
@@ -9,7 +9,8 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity android:name=".MainActivity" android:exported="true">
+
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
@@ -19,6 +20,7 @@
 
         <activity android:name=".UserActivity" />
         <activity android:name=".RegisterActivity"/>
+        <activity android:name=".CategoryActivity" />
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/Adapter.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/Adapter.java
new file mode 100644
index 0000000..38ffc00
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/Adapter.java
@@ -0,0 +1,69 @@
+package com.example.orangesale_02;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import com.example.orangesale_02.R;
+
+import java.util.List;
+
+public class Adapter extends BaseAdapter {
+    private List<String> productCategory;
+    private LayoutInflater layoutInflater;
+    private int selectionPosition = -1;
+
+    public Adapter(List<String> productCategory, Context context) {
+        this.productCategory = productCategory;
+        this.layoutInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    public int getCount() {
+        return productCategory.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return productCategory.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public View getView(int position, View convertView, ViewGroup parent) {
+        ViewHolder viewHolder = null;
+        if (convertView == null) {
+            viewHolder = new ViewHolder();
+            convertView = layoutInflater.inflate(R.layout.category_title, null);
+            Log.i("adapts", "getView: " + convertView);
+            viewHolder.tv = convertView.findViewById(R.id.category_titles);
+            convertView.setTag(viewHolder);
+        } else {
+            viewHolder = (ViewHolder) convertView.getTag();
+        }
+        viewHolder.tv.setText(productCategory.get(position));
+        if (selectionPosition == position) {
+            viewHolder.tv.setBackgroundColor(Color.YELLOW);
+        } else {
+            viewHolder.tv.setBackgroundColor(Color.WHITE);
+        }
+        return convertView;
+    }
+
+    public void setSelectedPosition(int position) {
+        this.selectionPosition = position;
+    }
+
+    class ViewHolder {
+        TextView tv;
+    }
+}
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/CategoryActivity.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/CategoryActivity.java
new file mode 100644
index 0000000..8849851
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/CategoryActivity.java
@@ -0,0 +1,163 @@
+package com.example.orangesale_02;
+
+import android.app.Activity;
+import android.app.FragmentManager;
+import android.app.FragmentTransaction;
+import android.os.Bundle;
+import android.widget.ListView;
+
+import androidx.annotation.Nullable;
+
+import com.example.orangesale_02.R;
+import com.example.orangesale_02.Adapter;
+import com.example.orangesale_02.Product;
+import com.example.orangesale_02.SetDetailFragment;
+
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class CategoryActivity extends Activity {
+    public OnChangeListener onchangedListener;
+    private List<Product> productList;
+    private List<String> productCategory = new ArrayList<>();
+    private ListView titleList;
+    private Adapter adapter;
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.content_category);
+        initData();
+        init();
+        SetDetailFragment fragment = new SetDetailFragment();
+        FragmentManager fragmentManager = getFragmentManager();
+        FragmentTransaction transaction = fragmentManager.beginTransaction();
+        transaction.replace(R.id.category_detail, fragment);
+        transaction.commit();
+        titleList.setOnItemClickListener((parent, view, position, id) -> {
+            adapter.setSelectedPosition(position);
+            adapter.notifyDataSetInvalidated();
+            if (onchangedListener != null) {
+                onchangedListener.changeText(productList.get(position));
+            }
+        });
+
+    }
+
+    public void setOnChangeListener(OnChangeListener onChangeListener) {
+        this.onchangedListener = onChangeListener;
+    }
+
+    public interface OnChangeListener {
+        void changeText(Product product);
+    }
+
+    /**
+     * 初始化数据
+     */
+    private void initData() {
+        productList = new ArrayList<>();
+        productCategory.add("橘子");
+        productCategory.add("橙子");
+        productCategory.add("柚子");
+        productCategory.add("桃子");
+        productCategory.add("西瓜");
+        productCategory.add("苹果");
+        productCategory.add("梨子");
+        productCategory.add("葡萄");
+        Product product = new Product();
+        product.setImageUrlId(R.drawable.huangyanmiju);
+        product.setProductName("黄岩蜜桔");
+        product.setProductPrice(new BigDecimal("5.5"));
+        product.setProductContent(new String("黄岩蜜桔，浙江省台州市黄岩区特产，黄岩蜜桔为宽皮橘类，果皮橙黄色，肾形，中心柱空，果肉柔软化渣，甜酸适口。"));
+
+        product.setImageUrlId(R.drawable.shatangju);
+        product.setProductName("沙糖桔");
+        product.setProductPrice(new BigDecimal("3.5"));
+        product.setProductContent(new String("沙糖桔，又名:十月桔。原产地在四会市，现在我国的很多地区都有种植。沙糖桔果实扁圆形，顶部有瘤状突起，蒂脐端凹陷，色泽橙黄至橙红，果壁薄，易剥离。沙糖桔尤以四会黄田镇出产的为正宗，唯其鲜美而极甜，无渣，口感细腻，实为佳品。"));
+        Product product1 = new Product();
+        product1.setImageUrlId(R.drawable.bingtangcheng);
+        product1.setProductName("冰糖橙");
+        product1.setProductPrice(new BigDecimal("3.5"));
+        product.setProductContent(new String("又名冰糖柑，原产湖南黔阳县(今洪江市)，冰糖橙以品种优良、味浓香甜、果皮薄、不塞牙、肉质脆嫩等而倍受市场欢迎。系当地普通甜橙的变异，湖南栽培较多，四川、重庆、贵州、云南、两广有少量栽培。"));
+
+        product1.setImageUrlId(R.drawable.xuecheng);
+        product1.setProductName("血橙");
+        product1.setProductPrice(new BigDecimal("6.5"));
+        product1.setProductContent(new String("果圆球形，扁圆形或椭圆形，橙红色，果皮难或稍易剥离，中果皮的颜色血红或暗紫红色，但未成熟的果则不着色，果心实或半充实，果肉成熟时橙红或紫红色，味甜或稍偏酸。"));
+        Product product2 = new Product();
+        product2.setImageUrlId(R.drawable.shatianyou);
+        product2.setProductName("沙田柚");
+        product2.setProductPrice(new BigDecimal("5"));
+        product2.setProductContent(new String("果实呈梨或者葫芦形，果肉爽脆，味道浓甜，有其独特的风味。但是水分较少，籽颇多，所以经常被人误解，认为是不新鲜导致水分较少。"));
+
+        product2.setImageUrlId(R.drawable.wendanyou);
+        product2.setProductName("文旦柚");
+        product2.setProductPrice(new BigDecimal("4"));
+        product2.setProductContent(new String("文旦柚果型呈扁平状，有籽，清甜且带有独特的清香味，果粒细小但汁水丰富，吃的时候可以配备一次性手套，免去汁水流满手的尴尬。"));
+        Product product3=new Product();
+        product3.setImageUrlId(R.drawable.shuimitao);
+        product3.setProductName("水蜜桃");
+        product3.setProductPrice(new BigDecimal("6.5"));
+        product3.setProductContent(new String("水蜜桃略呈球形，表面裹着一层细小的绒毛，青里泛白，白里透红。水蜜桃皮很薄，果肉丰富，宜于生食，入口滑润不留渣子。"));
+        product3.setImageUrlId(R.drawable.youtao);
+        product3.setProductName("油桃");
+        product3.setProductPrice(new BigDecimal("7.5"));
+        product3.setProductContent(new String("近球形核果，表面有毛茸，肉质可食，为橙黄色泛红色，直径7.5厘米，有带深麻点和沟纹的核，内含白色种子。 "));
+        Product product4=new Product();
+        product4.setImageUrlId(R.drawable.qilingua);
+        product4.setProductName("麒麟瓜");
+        product4.setProductPrice(new BigDecimal("3"));
+        product4.setProductContent(new String("属于西瓜种类的一种，是经过培植的科研新品种，瓜种对生长环境和土壤以及日照的要求非常高。由于从种下到开花、从开花到收瓜只需60天左右，因此即使种植讲究，但因周期短、口感好、效益见得快，因此温州和海南农民还是很乐意种植的。"));
+        product4.setImageUrlId(R.drawable.heimeirenxigua);
+        product4.setProductName("黑美人西瓜");
+        product4.setProductPrice(new BigDecimal("4.5"));
+        product4.setProductContent(new String("这种西瓜果实呈长椭圆形，瓜较小，果皮深黑绿色，有不明显的条纹。一般较为早熟，果皮薄而坚韧，肉质鲜嫩多汁。"));
+        Product product5=new Product();
+        product5.setImageUrlId(R.drawable.hongfushi);
+        product5.setProductName("红富士");
+        product5.setProductPrice(new BigDecimal("7.5"));
+        product5.setProductContent(new String("富士苹果的特点是体积很大，遍体通红，形状很圆，平均大小如棒球一般。果实的重量中，有9-11%是单糖，而且其果肉紧密，比其他很多苹果变种都要甜美和清脆。"));
+        product5.setImageUrlId(R.drawable.hongjiangjunpinguo);
+        product5.setProductName("红将军苹果");
+        product5.setProductPrice(new BigDecimal("6.0"));
+        product5.setProductContent(new String("它的口感的确比较出众， 果肉呈黄白色， 质地比红富士略松、甜脆爽口、香气馥郁、皮薄多汁。"));
+        Product product6=new Product();
+        product6.setImageUrlId(R.drawable.baili);
+        product6.setProductName("白梨");
+        product6.setProductPrice(new BigDecimal("4.5"));
+        product6.setProductContent(new String("白梨的果实有蜡质光泽，果皮薄，果肉厚，果核小，肉质细腻，酥脆多汁，甘甜爽口，含多种营养成分，具有生津、止渴、润肺、宽肠、强心、利尿等医疗作用。"));
+        product6.setImageUrlId(R.drawable.shali);
+        product6.setProductName("沙梨");
+        product6.setProductPrice(new BigDecimal("5.0"));
+        product6.setProductContent(new String("其肉质酥脆细腻，汁液丰富，酸甜浓郁。并具有显著的润肺止咳、养颜排毒、软化血管、健脑益智、延缓衰老等保健功效。"));
+        Product product7=new Product();
+        product7.setImageUrlId(R.drawable.yangguangmeigui);
+        product7.setProductName("阳光玫瑰葡萄");
+        product7.setProductPrice(new BigDecimal("25"));
+        product7.setProductContent(new String("阳光玫瑰葡萄丰产、稳产，大粒，抗病，耐贮性好，栽培简单。果粒着生紧密，椭圆形，黄绿色，果面有光泽，果粉少。果肉鲜脆多汁，有玫瑰香味，可溶性固形物含量20%左右，最高可达26%，鲜食品质极优。不裂果，不脱粒，丰产，抗逆性较强，综合性状优良。"));
+        product7.setImageUrlId(R.drawable.jufeng);
+        product7.setProductName("巨峰葡萄");
+        product7.setProductPrice(new BigDecimal("19.6"));
+        product7.setProductContent(new String("果粒椭圆形，紫黑色，果粉厚，粒大。果皮中等厚，与果肉易分离；果肉软，肉瓢不明显，汁多,果粒硕大，果色鲜艳，味酸甜，果粒柔软多汁，有草莓香味，营养丰富。"));
+        productList.add(product);
+        productList.add(product1);
+        productList.add(product2);
+        productList.add(product3);
+        productList.add(product4);
+        productList.add(product5);
+        productList.add(product6);
+        productList.add(product7);
+    }
+
+    /**
+     * 初始化组件
+     */
+    private void init() {
+        titleList = findViewById(R.id.category_title_list);
+        adapter = new Adapter(productCategory, CategoryActivity.this);
+        titleList.setAdapter(adapter);
+    }
+}
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/MainActivity.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/MainActivity.java
new file mode 100644
index 0000000..5348412
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/MainActivity.java
@@ -0,0 +1,47 @@
+package com.example.orangesale_02;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+
+public class MainActivity extends AppCompatActivity implements View.OnClickListener {
+    private Button registerButton, loginButton;
+    private EditText usernameText, paswdEdit;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.user_login);
+        init();
+        //组件初始化
+    }
+
+    //组件初始化
+    private void init() {
+        usernameText = findViewById(R.id.username);
+        paswdEdit = findViewById(R.id.password);
+        loginButton = findViewById(R.id.login);
+        //添加监听事件
+        loginButton.setOnClickListener(this);
+        registerButton = findViewById(R.id.register);
+        registerButton.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.register:
+                Intent intent = new Intent(MainActivity.this, RegisterActivity.class);
+                startActivity(intent);
+                break;
+            case R.id.login:
+                Intent intent2 = new Intent(MainActivity.this, CategoryActivity.class);
+                startActivity(intent2);
+                break;
+        }
+    }
+}
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/OrangeUser.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/OrangeUser.java
new file mode 100644
index 0000000..5ad8fcd
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/OrangeUser.java
@@ -0,0 +1,59 @@
+package com.example.orangesale_02;
+
+public class OrangeUser {
+    private Integer id;
+    private String username;
+    private String password;
+    private String sex;
+    private String city;
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+
+    public String getSex() {
+        return sex;
+    }
+
+    public void setSex(String sex) {
+        this.sex = sex;
+    }
+
+    public String getCity() {
+        return city;
+    }
+
+    public void setCity(String city) {
+        this.city = city;
+    }
+
+    @Override
+    public String toString() {
+        return "OrangeUser{" +
+                "username='" + username + '\'' +
+                ", password='" + password + '\'' +
+                ", sex='" + sex + '\'' +
+                ", city='" + city + '\'' +
+                '}';
+    }
+}
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/Product.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/Product.java
new file mode 100644
index 0000000..968d29f
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/Product.java
@@ -0,0 +1,43 @@
+package com.example.orangesale_02;
+
+import java.math.BigDecimal;
+
+public class Product {
+
+    public String getProductName() {
+        return productName;
+    }
+
+    public void setProductName(String productName) {
+        this.productName = productName;
+    }
+
+    public BigDecimal getProductPrice() {
+        return productPrice;
+    }
+    public String getProductContent() {
+        return productContent;
+    }
+    public void setProductContent(String productContent) {
+        this.productContent = productContent;
+    }
+
+
+    public void setProductPrice(BigDecimal productPrice) {
+        this.productPrice = productPrice;
+    }
+
+    public Integer getImageUrlId() {
+        return imageUrlId;
+    }
+
+    public void setImageUrlId(Integer imageUrlId) {
+        this.imageUrlId = imageUrlId;
+    }
+
+    private Integer imageUrlId;
+    private String productName;
+    private BigDecimal productPrice;
+
+    private String productContent;
+}
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/RegisterActivity.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/RegisterActivity.java
new file mode 100644
index 0000000..d0dc89f
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/RegisterActivity.java
@@ -0,0 +1,143 @@
+package com.example.orangesale_02;
+
+import android.content.Intent;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.RadioGroup;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.lljjcoder.citypickerview.widget.CityPicker;
+
+public class RegisterActivity extends AppCompatActivity implements View.OnClickListener, RadioGroup.OnCheckedChangeListener {
+    private EditText usernameEdit, passwordEdit, surePasswordEdit;
+    private TextView cityText;
+    private CityPicker cityPicker;
+    private Button regButton;
+    private RadioGroup sexGroup;
+    private String sexStr="男";
+
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.user_register);
+        init();
+    }
+
+    /**
+     * 界面组件初始化
+     */
+    private void init() {
+        cityText = findViewById(R.id.reg_province);
+        cityText.setOnClickListener(this);
+        usernameEdit = findViewById(R.id.reg_username);
+        passwordEdit = findViewById(R.id.reg_password);
+        surePasswordEdit = findViewById(R.id.reg_sure_password);
+        regButton = findViewById(R.id.reg_register);
+        regButton.setOnClickListener(this);
+        sexGroup = findViewById(R.id.sex);
+        sexGroup.setOnCheckedChangeListener(this);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.reg_province:
+                initCityPicker();
+                cityPicker.show();
+                break;
+            case R.id.reg_register:
+                //注册验证方法
+                validateRegister();
+                break;
+
+        }
+    }
+
+    /**
+     * 初始化城市选择器
+     */
+    public void initCityPicker() {
+        cityPicker = new CityPicker.Builder(RegisterActivity.this)
+                .textSize(16)
+                .title("地址选择")
+                .backgroundPop(0xa0000000)
+                .titleBackgroundColor("#EFB81C")
+                .titleTextColor("#000000")
+                .backgroundPop(0xa0000000)
+                .confirTextColor("#000000")
+                .cancelTextColor("#000000")
+                .province("江西省")
+                .city("赣州市")
+                .district("章贡区")
+                .textColor(Color.parseColor("#000000"))
+                .provinceCyclic(true)
+                .cityCyclic(false)
+                .districtCyclic(false)
+                .visibleItemsCount(7)
+                .itemPadding(10)
+                .onlyShowProvinceAndCity(false)
+                .build();
+        cityPicker.setOnCityItemClickListener(new CityPicker.OnCityItemClickListener() {
+            @Override
+            public void onSelected(String... strings) {
+                String province = strings[0];
+                String city = strings[1];
+                String district = strings[2];
+                cityText.setText(String.format("%s %s %s", province, city, district));
+            }
+
+            @Override
+            public void onCancel() {
+            }
+        });
+
+    }
+
+    /**
+     * 注册验证
+     */
+    public void validateRegister() {
+        Intent intent = new Intent(RegisterActivity.this, UserActivity.class);
+        String username = usernameEdit.getText().toString();
+        String password = passwordEdit.getText().toString();
+        String surePassword = surePasswordEdit.getText().toString();
+        String city = cityText.getText().toString();
+        //判断两次密码是否输入一致
+        if (password.equals(surePassword)) {
+            //这里也可以再进行其它的验证，如是否符合要求等，符合就进行插入数据库操作
+            if (!username.equals("") || !password.equals("")) {
+                if (!city.equals("")) {
+                    Bundle bundle = new Bundle();
+                    bundle.putString("username", username);
+                    bundle.putString("password", password);
+                    bundle.putString("sex", sexStr);
+                    bundle.putString("city", city);
+                    intent.putExtras(bundle);
+                    startActivity(intent);
+                } else {
+                    Toast.makeText(RegisterActivity.this, "请选择地址", Toast.LENGTH_SHORT).show();
+                }
+            } else {
+                Toast.makeText(RegisterActivity.this, "账号或密码未填写", Toast.LENGTH_SHORT).show();
+            }
+        } else {
+            Toast.makeText(RegisterActivity.this, "两次密码输入不一致", Toast.LENGTH_SHORT).show();
+        }
+
+
+    }
+
+    @Override
+    public void onCheckedChanged(RadioGroup group, int checkedId) {
+        //根据用户选择来改变sex的值
+        sexStr = checkedId == R.id.reg_man ? "男" : "女";
+    }
+}
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/SetDetailFragment.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/SetDetailFragment.java
new file mode 100644
index 0000000..a022f5f
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/SetDetailFragment.java
@@ -0,0 +1,69 @@
+package com.example.orangesale_02;
+
+import android.annotation.SuppressLint;
+import android.app.Fragment;
+import android.os.Bundle;
+import android.util.Log;
+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.annotation.Nullable;
+
+import com.example.orangesale_02.R;
+import com.example.orangesale_02.CategoryActivity;
+
+import java.util.Objects;
+
+public class SetDetailFragment extends Fragment {
+    private View view;
+
+    private ImageView imageView;
+    private ImageView imageView2;
+    private TextView nameText, priceText,contentText;
+    private TextView nameText2, priceText2,contentText2;
+
+    @SuppressLint("SetTextI18n")
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
+        view = inflater.inflate(R.layout.categoty_detail_content, container, false);
+
+
+        if (view != null) {
+            init();
+        }
+        CategoryActivity categoryActivity = (CategoryActivity) getActivity();
+        Objects.requireNonNull(categoryActivity).setOnChangeListener(product -> {
+            Log.i("sss", "onCreateView: " + product.getProductName());
+            imageView.setBackgroundResource(product.getImageUrlId());
+            nameText.setText(product.getProductName());
+            priceText.setText(product.getProductPrice().toString());
+            contentText.setText(product.getProductContent());
+            imageView2.setBackgroundResource(product.getImageUrlId());
+            nameText2.setText(product.getProductName());
+            priceText2.setText(product.getProductPrice().toString());
+            contentText2.setText(product.getProductContent());
+        });
+        return view;
+
+    }
+
+    /**
+     * 内容组件初始化
+     */
+    private void init() {
+        imageView = view.findViewById(R.id.category_product_image);
+        nameText = view.findViewById(R.id.category_product_name);
+        priceText = view.findViewById(R.id.category_product_price);
+        contentText = view.findViewById(R.id.category_product_content);
+        imageView2 = view.findViewById(R.id.category_product_image1);
+        nameText2 = view.findViewById(R.id.category_product_name1);
+        priceText2 = view.findViewById(R.id.category_product_price1);
+        contentText2 = view.findViewById(R.id.category_product_content1);
+    }
+
+}
diff --git a/02OrangeSale/app/src/main/java/com/example/orangesale_02/UserActivity.java b/02OrangeSale/app/src/main/java/com/example/orangesale_02/UserActivity.java
new file mode 100644
index 0000000..d3640a5
--- /dev/null
+++ b/02OrangeSale/app/src/main/java/com/example/orangesale_02/UserActivity.java
@@ -0,0 +1,73 @@
+package com.example.orangesale_02;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+
+import androidx.annotation.Nullable;
+import com.example.orangesale_02.R;
+import com.example.orangesale_02.MainActivity;
+
+public class UserActivity extends Activity implements View.OnClickListener{
+    private ImageView userIconImage;
+    private TextView usernameText, userSexText, userCityText;
+    private LinearLayout usernameLine, userSexline, userCityLine, userPayLine, userSettingLine, userGeneralLine,userSearchProductLine;
+
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.content_user);
+        init();
+    }
+
+
+    /**
+     * 组件初始化
+     */
+    private void init() {
+        userIconImage = findViewById(R.id.user_icon);
+        usernameText = findViewById(R.id.user_username);
+        userSexText = findViewById(R.id.user_sex);
+        userCityText = findViewById(R.id.user_city);
+        usernameLine = findViewById(R.id.user_username_line);
+        userSexline = findViewById(R.id.user_sex_line);
+        userCityLine = findViewById(R.id.user_city_line);
+        userPayLine = findViewById(R.id.user_pay);
+        userSettingLine = findViewById(R.id.user_setting);
+        userGeneralLine = findViewById(R.id.user_general);
+        userSearchProductLine = findViewById(R.id.user_searchProduct);
+        userSearchProductLine.setOnClickListener(this);
+        setData();
+    }
+
+    private void setData() {
+        Intent intent = UserActivity.this.getIntent();
+        Bundle bundle = intent.getExtras();
+        usernameText.setText(String.format("用户名：%s", bundle.getString("username")));
+        userSexText.setText(String.format("性别：%s", bundle.getString("sex")));
+        userCityText.setText(String.format("城市：%s", bundle.getString("city")));
+    }
+
+    public void click(View view)
+    {
+        Intent intent=new Intent(UserActivity.this,MainActivity.class);
+        startActivity(intent);
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.user_searchProduct:
+                Intent intent1 = new Intent(UserActivity.this, CategoryActivity.class);
+                startActivity(intent1);
+                break;
+        }
+    }
+}
+
+
diff --git a/02OrangeSale/app/src/main/res/drawable-v24/chengzi.png b/02OrangeSale/app/src/main/res/drawable-v24/chengzi.png
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/juzi.png b/02OrangeSale/app/src/main/res/drawable-v24/juzi.png
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/lizi.jpg b/02OrangeSale/app/src/main/res/drawable-v24/lizi.jpg
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/pingguo.jpg b/02OrangeSale/app/src/main/res/drawable-v24/pingguo.jpg
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/putao.jpg b/02OrangeSale/app/src/main/res/drawable-v24/putao.jpg
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/taozi.jpg b/02OrangeSale/app/src/main/res/drawable-v24/taozi.jpg
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/taozi2.jpg b/02OrangeSale/app/src/main/res/drawable-v24/taozi2.jpg
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index 0000000..741581d
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/xigua.png b/02OrangeSale/app/src/main/res/drawable-v24/xigua.png
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index 0000000..b6d8404
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diff --git a/02OrangeSale/app/src/main/res/drawable-v24/youzi.png b/02OrangeSale/app/src/main/res/drawable-v24/youzi.png
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diff --git a/02OrangeSale/app/src/main/res/drawable/baili.jpg b/02OrangeSale/app/src/main/res/drawable/baili.jpg
new file mode 100644
index 0000000..1bf4f22
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diff --git a/02OrangeSale/app/src/main/res/drawable/bingtangcheng.png b/02OrangeSale/app/src/main/res/drawable/bingtangcheng.png
new file mode 100644
index 0000000..22c1767
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diff --git a/02OrangeSale/app/src/main/res/drawable/heimeirenxigua.jpg b/02OrangeSale/app/src/main/res/drawable/heimeirenxigua.jpg
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diff --git a/02OrangeSale/app/src/main/res/drawable/hongfushi.jpg b/02OrangeSale/app/src/main/res/drawable/hongfushi.jpg
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diff --git a/02OrangeSale/app/src/main/res/drawable/hongjiangjunpinguo.png b/02OrangeSale/app/src/main/res/drawable/hongjiangjunpinguo.png
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diff --git a/02OrangeSale/app/src/main/res/drawable/huangyanmiju.jpg b/02OrangeSale/app/src/main/res/drawable/huangyanmiju.jpg
new file mode 100644
index 0000000..269b898
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diff --git a/02OrangeSale/app/src/main/res/drawable/jufeng.jpg b/02OrangeSale/app/src/main/res/drawable/jufeng.jpg
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index 0000000..2ef1810
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diff --git a/02OrangeSale/app/src/main/res/drawable/qilingua.jpg b/02OrangeSale/app/src/main/res/drawable/qilingua.jpg
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index 0000000..7586e55
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diff --git a/02OrangeSale/app/src/main/res/drawable/shali.jpg b/02OrangeSale/app/src/main/res/drawable/shali.jpg
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index 0000000..1c03ceb
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diff --git a/02OrangeSale/app/src/main/res/drawable/shatangju.png b/02OrangeSale/app/src/main/res/drawable/shatangju.png
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index 0000000..b924b8e
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diff --git a/02OrangeSale/app/src/main/res/drawable/shatianyou.png b/02OrangeSale/app/src/main/res/drawable/shatianyou.png
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index 0000000..097ce73
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diff --git a/02OrangeSale/app/src/main/res/drawable/shuimitao.png b/02OrangeSale/app/src/main/res/drawable/shuimitao.png
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index 0000000..1d229ce
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diff --git a/02OrangeSale/app/src/main/res/drawable/taozi.png b/02OrangeSale/app/src/main/res/drawable/taozi.png
new file mode 100644
index 0000000..106eb3e
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diff --git a/02OrangeSale/app/src/main/res/drawable/wendanyou.png b/02OrangeSale/app/src/main/res/drawable/wendanyou.png
new file mode 100644
index 0000000..e04e0a2
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diff --git a/02OrangeSale/app/src/main/res/drawable/xuecheng.png b/02OrangeSale/app/src/main/res/drawable/xuecheng.png
new file mode 100644
index 0000000..4db3a6d
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diff --git a/02OrangeSale/app/src/main/res/drawable/yangguangmeigui.jpg b/02OrangeSale/app/src/main/res/drawable/yangguangmeigui.jpg
new file mode 100644
index 0000000..18176d2
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diff --git a/02OrangeSale/app/src/main/res/drawable/youtao.jpg b/02OrangeSale/app/src/main/res/drawable/youtao.jpg
new file mode 100644
index 0000000..40ca33e
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diff --git a/02OrangeSale/app/src/main/res/layout/activity_main.xml b/02OrangeSale/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 0000000..4fc2444
--- /dev/null
+++ b/02OrangeSale/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/02OrangeSale/app/src/main/res/layout/category_detail.xml b/02OrangeSale/app/src/main/res/layout/category_detail.xml
new file mode 100644
index 0000000..17091e2
--- /dev/null
+++ b/02OrangeSale/app/src/main/res/layout/category_detail.xml
@@ -0,0 +1,17 @@
+<?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">
+
+    <GridView
+        android:id="@+id/category_detail_list"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:numColumns="3"
+        android:verticalSpacing="10dp"
+        android:horizontalSpacing="10dp"
+        android:gravity="center"
+        />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/02OrangeSale/app/src/main/res/layout/category_title.xml b/02OrangeSale/app/src/main/res/layout/category_title.xml
new file mode 100644
index 0000000..738b5f3
--- /dev/null
+++ b/02OrangeSale/app/src/main/res/layout/category_title.xml
@@ -0,0 +1,19 @@
+<?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">
+    <ImageView
+        android:layout_width="90dp"
+        android:layout_height="wrap_content"
+
+        android:layout_gravity="center"
+        />
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:id="@+id/category_titles"
+        android:textSize="20sp"
+        android:text="标题"/>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/02OrangeSale/app/src/main/res/layout/categoty_detail_content.xml b/02OrangeSale/app/src/main/res/layout/categoty_detail_content.xml
new file mode 100644
index 0000000..5ba22d4
--- /dev/null
+++ b/02OrangeSale/app/src/main/res/layout/categoty_detail_content.xml
@@ -0,0 +1,110 @@
+<?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">
+<LinearLayout
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    >
+    <ImageView
+        android:id="@+id/category_product_image"
+        android:layout_width="90dp"
+        android:layout_height="90dp"
+        android:layout_gravity="center"
+        />
+
+    <TextView
+        android:id="@+id/category_product_name"
+        android:layout_width="100dp"
+        android:layout_height="30dp"
+        android:layout_marginLeft="50dp"
+        android:layout_gravity="center"
+        android:layout_marginTop="2dp"
+        android:textColor="#050505"
+        android:textSize="16sp"
+        />
+
+    <TextView
+        android:id="@+id/category_product_price"
+        android:layout_width="wrap_content"
+        android:layout_height="30dp"
+        android:layout_marginLeft="20dp"
+        android:layout_gravity="center"
+        android:layout_marginTop="2dp"
+        android:gravity="center"
+        android:textColor="#050505"
+        android:textSize="16sp" />
+</LinearLayout>
+<LinearLayout
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:background="#FFEFA549">
+    <TextView
+        android:id="@+id/category_product_content"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="20dp"
+        android:layout_gravity="center"
+        android:layout_marginTop="2dp"
+        android:gravity="center"
+        android:textColor="#050505"
+        android:textSize="16sp"
+        />
+    </LinearLayout>
+
+
+
+<LinearLayout
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal">
+    <ImageView
+        android:id="@+id/category_product_image1"
+        android:layout_width="90dp"
+        android:layout_height="90dp"
+        android:layout_gravity="center" />
+
+    <TextView
+        android:id="@+id/category_product_name1"
+        android:layout_width="100dp"
+        android:layout_height="30dp"
+        android:layout_gravity="center"
+        android:layout_marginTop="2dp"
+        android:textColor="#050505"
+        android:layout_marginLeft="50dp"
+        android:textSize="16sp" />
+
+    <TextView
+        android:id="@+id/category_product_price1"
+        android:layout_width="50dp"
+        android:layout_height="30dp"
+        android:layout_marginLeft="20dp"
+        android:layout_gravity="center"
+        android:layout_marginTop="2dp"
+        android:gravity="center"
+        android:textColor="#050505"
+        android:textSize="16sp" />
+</LinearLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:background="#FFEFA549">
+        <TextView
+            android:id="@+id/category_product_content1"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="20dp"
+            android:layout_gravity="center"
+            android:layout_marginTop="2dp"
+            android:gravity="center"
+            android:textColor="#000000"
+            android:textSize="16sp"
+
+            />
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/02OrangeSale/app/src/main/res/layout/content_category.xml b/02OrangeSale/app/src/main/res/layout/content_category.xml
new file mode 100644
index 0000000..7c8a14a
--- /dev/null
+++ b/02OrangeSale/app/src/main/res/layout/content_category.xml
@@ -0,0 +1,48 @@
+<?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:background="#7EEDBF9B"
+    android:orientation="vertical">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="50dp"
+        android:background="#EDBB64"
+        android:orientation="horizontal">
+        <ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:id="@+id/category_return"
+            android:layout_gravity="center"
+            android:src="@drawable/arrow_down"/>
+            <TextView
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="12dp"
+                android:layout_weight="1"
+                android:gravity="center"
+                android:text="商品种类"
+                android:textSize="20sp"/>
+
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="horizontal">
+        <ListView
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:id="@+id/category_title_list"/>
+
+        <FrameLayout
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="3"
+            android:id="@+id/category_detail"
+            />
+
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/02OrangeSale/app/src/main/res/layout/content_user.xml b/02OrangeSale/app/src/main/res/layout/content_user.xml
index 048abbc..4184b15 100644
--- a/02OrangeSale/app/src/main/res/layout/content_user.xml
+++ b/02OrangeSale/app/src/main/res/layout/content_user.xml
@@ -15,8 +15,7 @@
         android:layout_width="120dp"
         android:layout_height="120dp"
         android:layout_gravity="center_horizontal"
-        android:layout_marginTop="40dp"
-        android:src="@drawable/orange" />
+        android:layout_marginTop="40dp" />
 
     <LinearLayout
         android:id="@+id/user_pay"
@@ -139,6 +138,29 @@
 
     </LinearLayout>
 
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:id="@+id/user_searchProduct"
+        android:background="#EDBB64"
+        android:layout_marginTop="20dp"
+        android:orientation="horizontal">
+        <TextView
+            android:layout_width="0dp"
+            android:layout_height="35dp"
+            android:drawableLeft="@drawable/setting"
+            android:text="查看商品"
+            android:gravity="center_vertical"
+            android:drawablePadding="8dp"
+            android:textSize="20sp"
+            android:layout_marginLeft="5dp"
+            android:layout_weight="1"/>
+        <ImageView
+            android:layout_width="25dp"
+            android:layout_height="25dp"
+            android:layout_gravity="center"
+            android:src="@drawable/arrow_down"/>
+    </LinearLayout>
     <LinearLayout
         android:id="@+id/user_general"
         android:layout_width="match_parent"