Init

.idea/render.experimental.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="RenderSettings">
-    <option name="showDecorations" value="true" />
-  </component>
-</project>

app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools">
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.register">
 
     <application
         android:allowBackup="true"
@@ -26,6 +27,7 @@
 
         <activity android:name=".registerActivity"> </activity>
         <activity android:name=".userActivity"> </activity>
+        <activity android:name=".CategoryActivity" />
 
      </application>
 

app/src/main/java/com/example/register/CategoryActivity.java

@@ -0,0 +1,114 @@
+package com.example.register;
+
+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.register.R;
+import com.example.register.entity.Product;
+import com.example.register.adapter.Adapter;
+import com.example.register.fragment.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("热销");
+        productCategory.add("严选");
+        productCategory.add("小食");
+        productCategory.add("啤酒");
+        productCategory.add("饮料");
+
+
+        Product product = new Product();
+        product.setImageUrlId(R.drawable.rou);
+        product.setProductName("肥肉饭");
+        product.setProductPrice(new BigDecimal("19.9"));
+
+
+
+        Product product1 = new Product();
+        product1.setImageUrlId(R.drawable.haorou);
+        product1.setProductName("严选套餐");
+        product1.setProductPrice(new BigDecimal("29.9"));
+
+
+        Product product2 = new Product();
+        product2.setImageUrlId(R.drawable.xiaoshi);
+        product2.setProductName("小食");
+        product2.setProductPrice(new BigDecimal("9.9"));
+
+        Product product3 = new Product();
+        product3.setImageUrlId(R.drawable.shui);
+        product3.setProductName("矿泉水");
+        product3.setProductPrice(new BigDecimal("1.9"));
+
+
+        Product product4 = new Product();
+        product4.setImageUrlId(R.drawable.yinliao);
+        product4.setProductName("雪碧");
+        product4.setProductPrice(new BigDecimal("1.9"));
+
+
+        productList.add(product);
+        productList.add(product1);
+        productList.add(product2);
+        productList.add(product3);
+        productList.add(product4);
+    }
+
+    /**
+     * 初始化组件
+     */
+    private void init() {
+        titleList = findViewById(R.id.category_title_list);
+        adapter = new Adapter(productCategory, CategoryActivity.this);
+        titleList.setAdapter(adapter);
+    }
+}

app/src/main/java/com/example/register/SetDetailFragment.java

@@ -0,0 +1,50 @@
+package com.example.register;
+
+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 java.util.Objects;
+
+public class SetDetailFragment extends Fragment {
+    private View view;
+    private ImageView imageView;
+    private TextView nameText, priceText;
+
+    @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());
+        });
+        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);
+    }
+
+}

app/src/main/java/com/example/register/adapter/Adapter.java

@@ -0,0 +1,69 @@
+package com.example.register.adapter;
+
+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.register.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_list_item, null);
+            Log.i("adapts", "getView: " + convertView);
+            viewHolder.tv = convertView.findViewById(R.id.categor_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;
+    }
+}

app/src/main/java/com/example/register/entity/Product.java

@@ -0,0 +1,34 @@
+package com.example.register.entity;
+
+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 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;
+}

app/src/main/java/com/example/register/fragment/SetDetailFragment.java

@@ -0,0 +1,53 @@
+package com.example.register.fragment;
+
+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.register.R;
+import com.example.register.CategoryActivity;
+
+import java.util.Objects;
+
+public class    SetDetailFragment extends Fragment {
+    private View view;
+    private ImageView imageView;
+    private TextView nameText, priceText;
+
+    @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());
+        });
+        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);
+    }
+
+}

app/src/main/java/com/example/register/userActivity.java

@@ -4,11 +4,18 @@ import androidx.appcompat.app.AppCompatActivity;
 import android.annotation.SuppressLint;
 import android.os.Bundle;
 import android.content.Intent;
+import android.view.View;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.app.Activity;
+import com.example.register.R;
+import androidx.annotation.Nullable;
 
-public class userActivity extends AppCompatActivity{
+public class userActivity extends AppCompatActivity implements View.OnClickListener{
     EditText username,sex,city;
+    LinearLayout search;
 
     Button exit;
 
@@ -28,6 +35,14 @@ public class userActivity extends AppCompatActivity{
         sex = findViewById(R.id.reg_sex);
         city = findViewById(R.id.reg_address);
 
+        search = findViewById(R.id.user_searchProduct);
+        search.setOnClickListener(this);
+//        search.setOnClickListener(view -> {
+//            Intent intent1 =new Intent();
+//            Intent.setClass(this,CategoryActivity.class);
+//            startActivity(intent1);
+//        });
+
         exit=findViewById(R.id.exit);
         exit.setOnClickListener(view -> {
             Intent intent = new Intent();
@@ -36,6 +51,19 @@ public class userActivity extends AppCompatActivity{
         });
     }
 
+
+//    @Override
+//    public void onClick(View v) {
+//        switch (v.getId()) {
+//            case R.id.user_searchProduct:
+//                Intent intent1 = new Intent(this, CategoryActivity.class);
+//                startActivity(intent1);
+//                break;
+//        }
+//    }
+
+
+
     /**
      * 接收参数
      */
@@ -51,4 +79,14 @@ public class userActivity extends AppCompatActivity{
         sex.setText("性别： " + sexStr);
         city.setText("地址： " + cityStr);
     }
+
+    @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;
+        }
+    }
     }

app/src/main/res/layout/category_detail.xml

@@ -0,0 +1,16 @@
+<?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>

app/src/main/res/layout/category_list_item.xml

@@ -0,0 +1,14 @@
+<?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">
+
+    <TextView
+        android:id="@+id/categor_titles"
+        android:layout_width="match_parent"
+        android:gravity="center"
+        android:layout_height="wrap_content"
+        android:textSize="18sp"
+        android:text="标题" />
+</LinearLayout>

app/src/main/res/layout/categoty_detail_content.xml

@@ -0,0 +1,31 @@
+<?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: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="wrap_content"
+        android:layout_height="30dp"
+        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_gravity="center"
+        android:layout_marginTop="2dp"
+        android:gravity="center"
+        android:textColor="#050505"
+        android:textSize="16sp" />
+</LinearLayout>

app/src/main/res/layout/content_category.xml

@@ -0,0 +1,54 @@
+<?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="#E8E8E8"
+    android:orientation="vertical">
+
+    <!--标题-->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="50dp"
+        android:background="#EFB81C"
+        android:orientation="horizontal">
+
+        <ImageView
+            android:id="@+id/category_return"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:src="@drawable/arrow_left" />
+
+        <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:textColor="#FFF"
+            android:textSize="20sp" />
+    </LinearLayout>
+
+    <!--分类标题和内容-->
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="horizontal">
+        <!--标题-->
+        <!--内容-->
+
+        <ListView
+            android:id="@+id/category_title_list"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1" />
+
+        <FrameLayout
+            android:id="@+id/category_detail"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="3" />
+    </LinearLayout>
+
+</LinearLayout>

app/src/main/res/layout/user.xml

@@ -23,12 +23,12 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:gravity="center_horizontal"
-        android:layout_marginTop="40dp"
+        android:layout_marginTop="20dp"
         android:orientation="horizontal">
 
         <ImageView
-            android:layout_width="50dp"
+            android:layout_width="40dp"
-            android:layout_height="50dp"
+            android:layout_height="40dp"
             android:layout_gravity="center_horizontal"
             android:src="@drawable/user" />
 
@@ -36,7 +36,7 @@
             android:id="@+id/login_name"
             android:layout_width="310dp"
             android:layout_height="60dp"
-            android:textSize="25sp"
+            android:textSize="20sp"
             android:hint="username"
             android:maxLength="16"
             android:maxLines="1"
@@ -50,12 +50,12 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:gravity="center_horizontal"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:orientation="horizontal">
 
         <ImageView
-            android:layout_width="45dp"
+            android:layout_width="30dp"
-            android:layout_height="45dp"
+            android:layout_height="30dp"
             android:layout_gravity="center_horizontal"
             android:src="@drawable/sex" />
 
@@ -63,7 +63,7 @@
             android:id="@+id/reg_sex"
             android:layout_width="310dp"
             android:layout_height="60dp"
-            android:textSize="25sp"
+            android:textSize="20sp"
             android:hint="username"
             android:maxLength="4"
             android:maxLines="1"
@@ -75,12 +75,12 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:gravity="center_horizontal"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:orientation="horizontal">
 
         <ImageView
-            android:layout_width="50dp"
+            android:layout_width="40dp"
-            android:layout_height="50dp"
+            android:layout_height="40dp"
             android:layout_gravity="center_horizontal"
             android:src="@drawable/address"/>
 
@@ -88,7 +88,7 @@
             android:id="@+id/reg_address"
             android:layout_width="310dp"
             android:layout_height="60dp"
-            android:textSize="25sp"
+            android:textSize="20sp"
             android:hint="address"
             android:maxLength="25"
             android:maxLines="1"
@@ -100,19 +100,19 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:gravity="center_horizontal"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:orientation="horizontal">
 
         <ImageView
-            android:layout_width="50dp"
+            android:layout_width="40dp"
-            android:layout_height="50dp"
+            android:layout_height="40dp"
             android:layout_gravity="center_horizontal"
             android:src="@drawable/red" />
 
         <EditText
             android:layout_width="310dp"
             android:layout_height="60dp"
-            android:textSize="25sp"
+            android:textSize="20sp"
             android:hint="money"
             android:maxLength="10"
             android:maxLines="1"
@@ -121,24 +121,30 @@
     </LinearLayout>
 
     <LinearLayout
+        android:id="@+id/user_searchProduct"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:gravity="center_horizontal"
         android:orientation="horizontal">
 
-        <ImageView
-            android:layout_width="50dp"
-            android:layout_height="50dp"
-            android:layout_gravity="center_horizontal" />
 
-        <EditText
+        <TextView
-            android:layout_width="310dp"
+            android:drawableLeft="@drawable/search"
+            android:layout_width="165dp"
             android:layout_height="60dp"
-            android:textSize="25sp"
+            android:textSize="20sp"
             android:hint="search"
             android:maxLines="1"
             android:text="查看订单" />
+        <TextView
+            android:layout_width="165dp"
+            android:layout_height="60dp"
+            android:textSize="20sp"
+            android:hint="search"
+            android:maxLines="1"
+            android:text="点餐" />
+
 
     </LinearLayout>
 
@@ -146,18 +152,18 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:gravity="center_horizontal"
-        android:layout_marginTop="20dp"
+        android:layout_marginTop="10dp"
         android:orientation="horizontal">
 
         <ImageView
-            android:layout_width="50dp"
+            android:layout_width="40dp"
-            android:layout_height="50dp"
+            android:layout_height="40dp"
             android:layout_gravity="center_horizontal" />
 
-        <EditText
+        <TextView
             android:layout_width="310dp"
             android:layout_height="60dp"
-            android:textSize="25sp"
+            android:textSize="20sp"
             android:hint="set"
             android:maxLines="1"
             android:text="设置" />