exam

Coffeestore/.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

Coffeestore/android

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+Subproject commit 759ef60a4e1e9b83ba8e8486677ea7c01a1928cb

Coffeestore/app/.gitignore

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+/build

Coffeestore/app/build.gradle

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+plugins {
+    id 'com.android.application'
+}
+
+android {
+
+
+    compileSdkVersion 33
+
+    defaultConfig {
+        applicationId "com.example.test"
+        minSdkVersion 16
+        targetSdkVersion 33
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'com.google.android.material:material:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+}

Coffeestore/app/debug/output.json

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+[{"outputType":{"type":"APK"},"apkInfo":{"type":"MAIN","splits":[],"versionCode":1,"versionName":"1.0","enabled":true,"outputFile":"app-debug.apk","fullName":"debug","baseName":"debug"},"path":"app-debug.apk","properties":{}}]

Coffeestore/app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

Coffeestore/app/src/androidTest/java/com/example/storage/ApplicationTest.java

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+package com.example.storage;
+
+import android.app.Application;
+
+/**
+ * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
+ */
+public class ApplicationTest {
+    public ApplicationTest() {
+        super(Application.class);
+    }
+}

Coffeestore/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.storage">
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAG" />
+    <uses-permission
+        android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"
+        tools:ignore="ProtectedPermissions" />
+
+    <application
+        android:name=".MainApplication"
+        android:allowBackup="true"
+        android:icon="@drawable/nt1"
+        android:label="盲盒咖啡店"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".UserActivity" ></activity>
+        <activity android:name=".RegisterActivity" android:theme="@style/Theme.Design.NoActionBar" />
+        <activity android:exported="true"  android:name=".LoginActivity" android:theme="@style/Theme.Design.NoActionBar" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".ShoppingChannelActivity"
+            tools:ignore="Instantiatable"  android:theme="@style/Theme.Design.NoActionBar" />
+        <activity
+            android:name=".ShoppingCartActivity"
+            tools:ignore="Instantiatable"  android:theme="@style/Theme.Design.NoActionBar" />
+        <activity
+            android:name=".ShoppingDetailActivity"
+            tools:ignore="Instantiatable"  android:theme="@style/Theme.Design.NoActionBar" />
+    </application>
+
+</manifest>

Coffeestore/app/src/main/java/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.example.storage">
+
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAG" />
+    <uses-permission
+        android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"
+        tools:ignore="ProtectedPermissions" />
+
+    <application
+        android:name=".MainApplication"
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".UserActivity"></activity>
+        <activity android:name=".RegisterActivity" />
+        <activity android:name=".LoginActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <activity
+            android:name=".ShoppingChannelActivity"
+            tools:ignore="Instantiatable" />
+        <activity
+            android:name=".ShoppingCartActivity"
+            tools:ignore="Instantiatable" />
+        <activity
+            android:name=".ShoppingDetailActivity"
+            tools:ignore="Instantiatable" />
+    </application>
+
+</manifest>

Coffeestore/app/src/main/java/com/example/storage/Code.java

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+package com.example.storage;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+
+import java.util.Random;
+
+/**
+ *
+ */
+
+public class Code {
+    /**
+     * 随机数数组
+     * 去除了易混淆的 数字 0 和 字母 o O
+     *                数字 1 和 字母 i I l L
+     *                数字 6 和 字母 b
+     *                数字 9 和 字母 q
+     *                字母 c C 和 G
+     *                字母 t （经常和随机线混在一起看不清）
+     */
+    private static final char[] CHARS = {
+            '2', '3', '4', '5',  '7', '8',
+            'a',  'd', 'e', 'f', 'g', 'h', 'j', 'k', 'm',
+            'n', 'p',  'r', 's',  'u', 'v', 'w', 'x', 'y', 'z',
+            'A', 'B',  'D', 'E', 'F',  'H',  'J', 'K', 'M',
+            'N', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
+    };
+
+    private static Code bmpCode;
+
+    public static Code getInstance() {
+        if(bmpCode == null)
+            bmpCode = new Code();
+        return bmpCode;
+    }
+
+    //default settings
+    //验证码默认随机数的个数
+    private static final int DEFAULT_CODE_LENGTH = 4;
+    //默认字体大小
+    private static final int DEFAULT_FONT_SIZE = 25;
+    //默认线条的条数
+    private static final int DEFAULT_LINE_NUMBER = 5;
+    //padding值
+    private static final int BASE_PADDING_LEFT = 10, RANGE_PADDING_LEFT = 15, BASE_PADDING_TOP = 15, RANGE_PADDING_TOP = 20;
+    //验证码的默认宽高
+    private static final int DEFAULT_WIDTH = 100, DEFAULT_HEIGHT = 40;
+
+    //settings decided by the layout xml
+    //canvas width and height
+    private int width = DEFAULT_WIDTH, height = DEFAULT_HEIGHT;
+
+    //random word space and pading_top
+    private int base_padding_left = BASE_PADDING_LEFT, range_padding_left = RANGE_PADDING_LEFT,
+            base_padding_top = BASE_PADDING_TOP, range_padding_top = RANGE_PADDING_TOP;
+
+    //number of chars, lines; font size
+    private int codeLength = DEFAULT_CODE_LENGTH, line_number = DEFAULT_LINE_NUMBER, font_size = DEFAULT_FONT_SIZE;
+
+    //variables
+    private String code;
+    private int padding_left, padding_top;
+    private Random random = new Random();
+    //验证码图片
+    public Bitmap createBitmap() {
+        padding_left = 0;
+
+        Bitmap bp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+        Canvas c = new Canvas(bp);
+
+        code = createCode();
+
+        c.drawColor(Color.WHITE);
+        Paint paint = new Paint();
+        paint.setAntiAlias(true);
+        paint.setTextSize(font_size);
+        //画验证码
+        for (int i = 0; i < code.length(); i++) {
+            randomTextStyle(paint);
+            randomPadding();
+            c.drawText(code.charAt(i) + "", padding_left, padding_top, paint);
+        }
+        //画线条
+        for (int i = 0; i < line_number; i++) {
+            drawLine(c, paint);
+        }
+
+//        c.save( Canvas.ALL_SAVE_FLAG );//保存
+        c.save();//保存
+        c.restore();//
+        return bp;
+    }
+
+    public String getCode() {
+        return code;
+    }
+
+    //生成验证码
+    private String createCode() {
+        StringBuilder buffer = new StringBuilder();
+        for (int i = 0; i < codeLength; i++) {
+            buffer.append(CHARS[random.nextInt(CHARS.length)]);
+        }
+        return buffer.toString();
+    }
+    //画干扰线
+    private void drawLine(Canvas canvas, Paint paint) {
+        int color = randomColor();
+        int startX = random.nextInt(width);
+        int startY = random.nextInt(height);
+        int stopX = random.nextInt(width);
+        int stopY = random.nextInt(height);
+        paint.setStrokeWidth(1);
+        paint.setColor(color);
+        canvas.drawLine(startX, startY, stopX, stopY, paint);
+    }
+    //生成随机颜色
+    private int randomColor() {
+        return randomColor(1);
+    }
+
+    private int randomColor(int rate) {
+        int red = random.nextInt(256) / rate;
+        int green = random.nextInt(256) / rate;
+        int blue = random.nextInt(256) / rate;
+        return Color.rgb(red, green, blue);
+    }
+    //随机生成文字样式，颜色，粗细，倾斜度
+    private void randomTextStyle(Paint paint) {
+        int color = randomColor();
+        paint.setColor(color);
+        paint.setFakeBoldText(random.nextBoolean());  //true为粗体，false为非粗体
+        float skewX = random.nextInt(11) / 10;
+        skewX = random.nextBoolean() ? skewX : -skewX;
+        paint.setTextSkewX(skewX); //float类型参数，负数表示右斜，整数左斜
+        //paint.setUnderlineText(true); //true为下划线，false为非下划线
+        //paint.setStrikeThruText(true); //true为删除线，false为非删除线
+    }
+    //随机生成padding值
+    private void randomPadding() {
+        padding_left += base_padding_left + random.nextInt(range_padding_left);
+        padding_top = base_padding_top + random.nextInt(range_padding_top);
+    }
+}
+

Coffeestore/app/src/main/java/com/example/storage/DBOpenHelper.java

@@ -0,0 +1,85 @@
+package com.example.storage;
+
+import android.annotation.SuppressLint;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+import java.util.ArrayList;
+/**
+ *
+ */
+
+public class DBOpenHelper extends SQLiteOpenHelper {
+    /**
+     * 声明一个AndroidSDK自带的数据库变量db
+     */
+    private SQLiteDatabase db;
+
+    /**
+     * 写一个这个类的构造函数，参数为上下文context，所谓上下文就是这个类所在包的路径
+     * 指明上下文，数据库名，工厂默认空值，版本号默认从1开始
+     * super(context,"db_test",null,1);
+     * 把数据库设置成可写入状态，除非内存已满，那时候会自动设置为只读模式
+     * 不过，以现如今的内存容量，估计一辈子也见不到几次内存占满的状态
+     * db = getReadableDatabase();
+     */
+    public DBOpenHelper(Context context){
+        super(context,"db_test",null,1);
+        db = getReadableDatabase();
+    }
+
+    /**
+     * 重写两个必须要重写的方法，因为class DBOpenHelper extends SQLiteOpenHelper
+     * 而这两个方法是 abstract 类 SQLiteOpenHelper 中声明的 abstract 方法
+     * 所以必须在子类 DBOpenHelper 中重写 abstract 方法
+     * 想想也是，为啥规定这么死必须重写？
+     * 因为，一个数据库表，首先是要被创建的，然后免不了是要进行增删改操作的
+     * 所以就有onCreate()、onUpgrade()两个方法
+     * @param db
+     */
+    @Override
+    public void onCreate(SQLiteDatabase db){
+        db.execSQL("CREATE TABLE IF NOT EXISTS user(" +
+                "_id INTEGER PRIMARY KEY AUTOINCREMENT," +
+                "name TEXT," +
+                "password TEXT)");
+    }
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion){
+        db.execSQL("DROP TABLE IF EXISTS user");
+        onCreate(db);
+    }
+    /**
+     * 接下来写自定义的增删改查方法
+     * add()
+     * delete()
+     * update()
+     * getAllData()
+     */
+    public void add(String name,String password){
+        db.execSQL("INSERT INTO user (name,password) VALUES(?,?)",new Object[]{name,password});
+    }
+    public void delete(String name,String password){
+        db.execSQL("DELETE FROM user WHERE name = AND password ="+name+password);
+    }
+    public void updata(String password){
+        db.execSQL("UPDATE user SET password = ?",new Object[]{password});
+    }
+
+    /**
+     * @return
+     */
+    public ArrayList<User> getAllData(){
+
+        ArrayList<User> list = new ArrayList<User>();
+        Cursor cursor = db.query("user",null,null,null,null,null,"name DESC");
+        while(cursor.moveToNext()){
+            @SuppressLint("Range") String name = cursor.getString(cursor.getColumnIndex("name"));
+            @SuppressLint("Range") String password = cursor.getString(cursor.getColumnIndex("password"));
+            list.add(new User(name,password));
+        }
+        return list;
+    }
+}

Coffeestore/app/src/main/java/com/example/storage/LoginActivity.java

@@ -0,0 +1,117 @@
+package com.example.storage;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.RelativeLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import java.util.ArrayList;
+
+public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
+    /**
+     * 声明自己写的 DBOpenHelper 对象
+     * DBOpenHelper(extends SQLiteOpenHelper) 主要用来
+     * 创建数据表
+     * 然后再进行数据表的增、删、改、查操作
+     */
+    private DBOpenHelper mDBOpenHelper;
+    private TextView mTvLoginactivityRegister;
+    private RelativeLayout mRlLoginactivityTop;
+    private EditText mEtLoginactivityUsername;
+    private EditText mEtLoginactivityPassword;
+    private LinearLayout mLlLoginactivityTwo;
+    private Button mBtLoginactivityLogin;
+
+    /**
+     * 创建 Activity 时先来重写 onCreate() 方法
+     * 保存实例状态
+     * super.onCreate(savedInstanceState);
+     * 设置视图内容的配置文件
+     * setContentView(R.layout.activity_login);
+     * 上面这行代码真正实现了把视图层 View 也就是 layout 的内容放到 Activity 中进行显示
+     * 初始化视图中的控件对象 initView()
+     * 实例化 DBOpenHelper，待会进行登录验证的时候要用来进行数据查询
+     * mDBOpenHelper = new DBOpenHelper(this);
+     */
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_login);
+
+        initView();
+
+        mDBOpenHelper = new DBOpenHelper(this);
+    }
+
+    /**
+     * onCreae()中大的布局已经摆放好了，接下来就该把layout里的东西
+     * 声明、实例化对象然后有行为的赋予其行为
+     * 这样就可以把视图层View也就是layout 与 控制层 Java 结合起来了
+     */
+    private void initView() {
+        // 初始化控件
+        mBtLoginactivityLogin = findViewById(R.id.bt_loginactivity_login);
+        mTvLoginactivityRegister = findViewById(R.id.tv_loginactivity_register);
+        mRlLoginactivityTop = findViewById(R.id.rl_loginactivity_top);
+        mEtLoginactivityUsername = findViewById(R.id.et_loginactivity_username);
+        mEtLoginactivityPassword = findViewById(R.id.et_loginactivity_password);
+        mLlLoginactivityTwo = findViewById(R.id.ll_loginactivity_two);
+
+        // 设置点击事件监听器
+        mBtLoginactivityLogin.setOnClickListener(this);
+        mTvLoginactivityRegister.setOnClickListener(this);
+    }
+
+    @Override
+    public void onClick(View view) {
+        switch (view.getId()) {
+            // 跳转到注册界面
+            case R.id.tv_loginactivity_register:
+                startActivity(new Intent(this, RegisterActivity.class));
+                finish();
+                break;
+            /**
+             * 登录验证：
+             *
+             */
+            case R.id.bt_loginactivity_login:
+                String name = mEtLoginactivityUsername.getText().toString().trim();
+                String password = mEtLoginactivityPassword.getText().toString().trim();
+                if (!TextUtils.isEmpty(name) && !TextUtils.isEmpty(password)) {
+                    ArrayList<User> data = mDBOpenHelper.getAllData();
+                    boolean match = false;
+                    for (int i = 0; i < data.size(); i++) {
+                        User user = data.get(i);
+                        if (name.equals(user.getName()) && password.equals(user.getPassword())) {
+                            match = true;
+                            break;
+                        } else {
+                            match = false;
+                        }
+                    }
+                    if (match) {
+                        Toast.makeText(this, "登录成功", Toast.LENGTH_SHORT).show();
+                        Intent intent = new Intent(this, ShoppingCartActivity.class);
+                        startActivity(intent);
+                        finish();//销毁此Activity
+                    } else {
+                        Toast.makeText(this, "用户名或密码不正确，请重新输入", Toast.LENGTH_SHORT).show();
+                    }
+                } else {
+                    Toast.makeText(this, "请输入你的用户名或密码", Toast.LENGTH_SHORT).show();
+                }
+                break;
+        }
+    }
+}
+
+
+

Coffeestore/app/src/main/java/com/example/storage/MainApplication.java

@@ -0,0 +1,40 @@
+package com.example.storage;
+
+import java.util.HashMap;
+
+import android.app.Application;
+import android.content.res.Configuration;
+import android.graphics.Bitmap;
+import android.util.Log;
+
+
+public class MainApplication extends Application {
+    private final static String TAG = "MainApplication";
+    // 声明一个当前应用的静态实例
+    private static MainApplication mApp;
+    // 声明一个公共的图标映射对象，可当作全局变量使用
+    public HashMap<Long, Bitmap> mIconMap = new HashMap<Long, Bitmap>();
+
+    // 利用单例模式获取当前应用的唯一实例
+    public static MainApplication getInstance() {
+        return mApp;
+    }
+
+
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        // 在打开应用时对静态的应用实例赋值
+        mApp = this;
+        Log.d(TAG, "onCreate");
+    }
+
+    @Override
+    public void onTerminate() {
+        Log.d(TAG, "onTerminate");
+        super.onTerminate();
+    }
+
+
+}

Coffeestore/app/src/main/java/com/example/storage/RegisterActivity.java

@@ -0,0 +1,102 @@
+package com.example.storage;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.View;
+import android.widget.Button;
+import android.widget.CheckBox;
+import android.widget.EditText;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.RelativeLayout;
+import android.widget.Toast;
+
+public class RegisterActivity extends AppCompatActivity implements View.OnClickListener {
+
+    private String realCode;
+    private DBOpenHelper mDBOpenHelper;
+    private Button mBtRegisteractivityRegister;
+    private RelativeLayout mRlRegisteractivityTop;
+    private ImageView mIvRegisteractivityBack;
+    private LinearLayout mLlRegisteractivityBody;
+    private EditText mEtRegisteractivityUsername;
+    private EditText mEtRegisteractivityPassword1;
+    private EditText mEtRegisteractivityPassword2;
+    private EditText mEtRegisteractivityPhonecodes;
+    private ImageView mIvRegisteractivityShowcode;
+    private RelativeLayout mRlRegisteractivityBottom;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_register);
+
+        initView();
+
+        mDBOpenHelper = new DBOpenHelper(this);
+
+        //将验证码用图片的形式显示出来
+        mIvRegisteractivityShowcode.setImageBitmap(Code.getInstance().createBitmap());
+        realCode = Code.getInstance().getCode().toLowerCase();
+    }
+
+    private void initView(){
+        mBtRegisteractivityRegister = findViewById(R.id.bt_registeractivity_register);
+        mRlRegisteractivityTop = findViewById(R.id.rl_registeractivity_top);
+        mIvRegisteractivityBack = findViewById(R.id.iv_registeractivity_back);
+        mLlRegisteractivityBody = findViewById(R.id.ll_registeractivity_body);
+        mEtRegisteractivityUsername = findViewById(R.id.et_registeractivity_username);
+        mEtRegisteractivityPassword1 = findViewById(R.id.et_registeractivity_password1);
+        mEtRegisteractivityPassword2 = findViewById(R.id.et_registeractivity_password2);
+        mEtRegisteractivityPhonecodes = findViewById(R.id.et_registeractivity_phoneCodes);
+        mIvRegisteractivityShowcode = findViewById(R.id.iv_registeractivity_showCode);
+        mRlRegisteractivityBottom = findViewById(R.id.rl_registeractivity_bottom);
+
+        /**
+         * 注册页面能点击的就三个地方
+         * top处返回箭头、刷新验证码图片、注册按钮
+         */
+        mIvRegisteractivityBack.setOnClickListener(this);
+        mIvRegisteractivityShowcode.setOnClickListener(this);
+        mBtRegisteractivityRegister.setOnClickListener(this);
+    }
+
+    public void onClick(View view) {
+        switch (view.getId()) {
+            case R.id.iv_registeractivity_back: //返回登录页面
+                Intent intent1 = new Intent(this, LoginActivity.class);
+                startActivity(intent1);
+                finish();
+                break;
+            case R.id.iv_registeractivity_showCode:    //改变随机验证码的生成
+                mIvRegisteractivityShowcode.setImageBitmap(Code.getInstance().createBitmap());
+                realCode = Code.getInstance().getCode().toLowerCase();
+                break;
+            case R.id.bt_registeractivity_register:    //注册按钮
+                //获取用户输入的用户名、密码、验证码
+                String username = mEtRegisteractivityUsername.getText().toString().trim();
+                String password = mEtRegisteractivityPassword2.getText().toString().trim();
+                String phoneCode = mEtRegisteractivityPhonecodes.getText().toString().toLowerCase();
+                //注册验证
+                if (!TextUtils.isEmpty(username) && !TextUtils.isEmpty(password) && !TextUtils.isEmpty(phoneCode) ) {
+                    if (phoneCode.equals(realCode)) {
+                        //将用户名和密码加入到数据库中
+                        mDBOpenHelper.add(username, password);
+                        Intent intent2 = new Intent(this, LoginActivity.class);
+                        startActivity(intent2);
+                        finish();
+                        Toast.makeText(this,  "验证通过，注册成功", Toast.LENGTH_SHORT).show();
+                    } else {
+                        Toast.makeText(this, "验证码错误,注册失败", Toast.LENGTH_SHORT).show();
+                    }
+                }else {
+                    Toast.makeText(this, "未完善信息，注册失败", Toast.LENGTH_SHORT).show();
+                }
+                break;
+        }
+    }
+}
+

Coffeestore/app/src/main/java/com/example/storage/ShoppingCartActivity.java

@@ -0,0 +1,382 @@
+package com.example.storage;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.os.Environment;
+import android.util.Log;
+import android.util.TypedValue;
+import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.Gravity;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup.LayoutParams;
+import android.view.Window;
+import android.widget.ImageView;
+import android.widget.ImageView.ScaleType;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import com.example.storage.bean.CartInfo;
+import com.example.storage.bean.GoodsInfo;
+import com.example.storage.database.CartDBHelper;
+import com.example.storage.database.GoodsDBHelper;
+import com.example.storage.util.FileUtil;
+import com.example.storage.util.SharedUtil;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+
+
+
+@SuppressLint("SetTextI18n")
+public class ShoppingCartActivity extends Activity implements OnClickListener {
+    private final static String TAG = "ShoppingCartActivity";
+    private ImageView iv_menu;
+    private TextView tv_count;
+    private TextView tv_total_price;
+    private LinearLayout ll_content;
+    private LinearLayout ll_cart;
+    private LinearLayout ll_empty;
+    private int mCount; // 购物车中的商品数量
+    private GoodsDBHelper mGoodsHelper; // 声明一个商品数据库的帮助器对象
+    private CartDBHelper mCartHelper; // 声明一个购物车数据库的帮助器对象
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+        setContentView(R.layout.activity_shopping_cart);
+        iv_menu = findViewById(R.id.iv_menu);
+        TextView tv_title = findViewById(R.id.tv_title);
+        tv_count = findViewById(R.id.tv_count);
+        tv_total_price = findViewById(R.id.tv_total_price);
+        ll_content = findViewById(R.id.ll_content);
+        ll_cart = findViewById(R.id.ll_cart);
+        ll_empty = findViewById(R.id.ll_empty);
+        iv_menu.setOnClickListener(this);
+        findViewById(R.id.btn_shopping_channel).setOnClickListener(this);
+        findViewById(R.id.btn_settle).setOnClickListener(this);
+        findViewById(R.id.btn_shopping_grzx).setOnClickListener(this);
+        iv_menu.setVisibility(View.VISIBLE);
+        tv_title.setText("盲盒咖啡店");
+    }
+
+    // 显示购物车图标中的商品数量
+    private void showCount(int count) {
+        mCount = count;
+        tv_count.setText("" + mCount);
+        if (mCount == 0) {
+            ll_content.setVisibility(View.GONE);
+            ll_cart.removeAllViews();
+            ll_empty.setVisibility(View.VISIBLE);
+        } else {
+            ll_content.setVisibility(View.VISIBLE);
+            ll_empty.setVisibility(View.GONE);
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (v.getId() == R.id.iv_menu) { // 点击了菜单图标
+            openOptionsMenu();
+        } else if (v.getId() == R.id.btn_shopping_channel) { // 点击了“商场”按钮
+            // 跳转到商场页面
+            Intent intent = new Intent(this, ShoppingChannelActivity.class);
+            startActivity(intent);
+        } else if (v.getId() == R.id.btn_settle) { // 点击了“结算”按钮
+            AlertDialog.Builder builder = new AlertDialog.Builder(this);
+            builder.setTitle("结算商品");
+            builder.setMessage("支付成功！");
+            builder.setPositiveButton("好的", null);
+            builder.create().show();
+        }
+        else if (v.getId() == R.id.btn_shopping_grzx) {
+            // 跳转到个人中心页面
+            Intent intent = new Intent(this, UserActivity.class);
+            startActivity(intent);
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        // 从menu_cart.xml中构建菜单界面布局
+        getMenuInflater().inflate(R.menu.menu_cart, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        int id = item.getItemId();
+        if (id == R.id.menu_shopping) { // 点击了菜单项“去商场购物”
+            // 跳转到商场页面
+            Intent intent = new Intent(this, ShoppingChannelActivity.class);
+            startActivity(intent);
+        } else if (id == R.id.menu_clear) { // 点击了菜单项“清空购物车”
+            // 清空购物车数据库
+            mCartHelper.deleteAll();
+            ll_cart.removeAllViews();
+            // 把最新的商品数量写入共享参数
+            SharedUtil.getIntance(this).writeShared("count", "0");
+            // 显示最新的商品数量
+            showCount(0);
+            mCartGoods.clear();
+            mGoodsMap.clear();
+            Toast.makeText(this, "购物车已清空", Toast.LENGTH_SHORT).show();
+        } else if (id == R.id.menu_return) { // 点击了菜单项“返回”
+            finish();
+        }
+        return true;
+    }
+
+    // 声明一个根据视图编号查找商品信息的映射
+    private HashMap<Integer, CartInfo> mCartGoods = new HashMap<Integer, CartInfo>();
+    // 声明一个触发上下文菜单的视图对象
+    private View mContextView;
+
+    @Override
+    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
+        // 保存该商品行的视图，以便删除商品时一块从列表移除该行
+        mContextView = v;
+        // 从menu_goods.xml中构建菜单界面布局
+        getMenuInflater().inflate(R.menu.menu_goods, menu);
+    }
+
+    @Override
+    public boolean onContextItemSelected(MenuItem item) {
+        CartInfo info = mCartGoods.get(mContextView.getId());
+        int id = item.getItemId();
+        if (id == R.id.menu_detail) { // 点击了菜单项“查看商品详情”
+            // 跳转到查看商品详情页面
+            goDetail(info.goods_id);
+        } else if (id == R.id.menu_delete) { // 点击了菜单项“从购物车删除”
+            long goods_id = info.goods_id;
+            // 从购物车删除商品的数据库操作
+            mCartHelper.delete("goods_id=" + goods_id);
+            // 从购物车列表中删除该商品行
+            ll_cart.removeView(mContextView);
+            // 更新购物车中的商品数量
+            int left_count = mCount - info.count;
+            for (int i = 0; i < mCartArray.size(); i++) {
+                if (goods_id == mCartArray.get(i).goods_id) {
+                    left_count = mCount - mCartArray.get(i).count;
+                    mCartArray.remove(i);
+                    break;
+                }
+            }
+            // 把最新的商品数量写入共享参数
+            SharedUtil.getIntance(this).writeShared("count", "" + left_count);
+            // 显示最新的商品数量
+            showCount(left_count);
+            Toast.makeText(this, "已从购物车删除" + mGoodsMap.get(goods_id).name, Toast.LENGTH_SHORT).show();
+            mGoodsMap.remove(goods_id);
+            refreshTotalPrice();
+        }
+        return true;
+    }
+
+    // 跳转到商品详情页面
+    private void goDetail(long rowid) {
+        Intent intent = new Intent(this, ShoppingDetailActivity.class);
+        intent.putExtra("goods_id", rowid);
+        startActivity(intent);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // 获取共享参数保存的购物车中的商品数量
+        mCount = Integer.parseInt(SharedUtil.getIntance(this).readShared("count", "0"));
+        showCount(mCount);
+        // 获取商品数据库的帮助器对象
+        mGoodsHelper = GoodsDBHelper.getInstance(this, 1);
+        // 打开商品数据库的写连接
+        mGoodsHelper.openWriteLink();
+        // 获取购物车数据库的帮助器对象
+        mCartHelper = CartDBHelper.getInstance(this, 1);
+        // 打开购物车数据库的写连接
+        mCartHelper.openWriteLink();
+        // 模拟从网络下载商品图片
+        downloadGoods();
+        // 展示购物车中的商品列表
+        showCart();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        // 关闭商品数据库的数据库连接
+        mGoodsHelper.closeLink();
+        // 关闭购物车数据库的数据库连接
+        mCartHelper.closeLink();
+    }
+
+    // 声明一个起始的视图编号
+    private int mBeginViewId = 0x7F24FFF0;
+    // 声明一个购物车中的商品信息队列
+    private ArrayList<CartInfo> mCartArray = new ArrayList<CartInfo>();
+    // 声明一个根据商品编号查找商品信息的映射
+    private HashMap<Long, GoodsInfo> mGoodsMap = new HashMap<Long, GoodsInfo>();
+
+    // 展示购物车中的商品列表
+    private void showCart() {
+        // 查询购物车数据库中所有的商品记录
+        mCartArray = mCartHelper.query("1=1");
+        Log.d(TAG, "mCartArray.size()=" + mCartArray.size());
+        if (mCartArray == null || mCartArray.size() <= 0) {
+            return;
+        }
+        // 移除线性视图ll_cart下面的所有子视图
+        ll_cart.removeAllViews();
+        // 创建一个标题行的线性视图ll_row
+        LinearLayout ll_row = newLinearLayout(LinearLayout.HORIZONTAL, LayoutParams.WRAP_CONTENT);
+        ll_row.addView(newTextView(0, 2, Gravity.CENTER, "图片", Color.BLACK, 15));
+        ll_row.addView(newTextView(0, 3, Gravity.CENTER, "名称", Color.BLACK, 15));
+        ll_row.addView(newTextView(0, 1, Gravity.CENTER, "数量", Color.BLACK, 15));
+        ll_row.addView(newTextView(0, 1, Gravity.CENTER, "单价", Color.BLACK, 15));
+        ll_row.addView(newTextView(0, 1, Gravity.CENTER, "总价", Color.BLACK, 15));
+        // 把标题行添加到购物车列表
+        ll_cart.addView(ll_row);
+        for (int i = 0; i < mCartArray.size(); i++) {
+            final CartInfo info = mCartArray.get(i);
+            // 根据商品编号查询商品数据库中的商品记录
+            GoodsInfo goods = mGoodsHelper.queryById(info.goods_id);
+            Log.d(TAG, "name=" + goods.name + ",price=" + goods.price + ",desc=" + goods.desc);
+            mGoodsMap.put(info.goods_id, goods);
+            // 创建该商品行的水平线性视图，从左到右依次为商品小图、商品名称与描述、商品数量、商品单价、商品总价。
+            ll_row = newLinearLayout(LinearLayout.HORIZONTAL, LayoutParams.WRAP_CONTENT);
+            // 设置该线性视图的编号
+            ll_row.setId(mBeginViewId + i);
+            // 添加商品小图
+            ImageView iv_thumb = new ImageView(this);
+            LinearLayout.LayoutParams iv_params = new LinearLayout.LayoutParams(
+                    0, LayoutParams.WRAP_CONTENT, 2);
+            iv_thumb.setLayoutParams(iv_params);
+            iv_thumb.setScaleType(ScaleType.FIT_CENTER);
+            iv_thumb.setImageBitmap(MainApplication.getInstance().mIconMap.get(info.goods_id));
+            ll_row.addView(iv_thumb);
+            // 添加商品名称与描述
+            LinearLayout ll_name = new LinearLayout(this);
+            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
+                    0, LayoutParams.MATCH_PARENT, 3);
+            ll_name.setLayoutParams(params);
+            ll_name.setOrientation(LinearLayout.VERTICAL);
+            ll_name.addView(newTextView(-3, 1, Gravity.LEFT, goods.name, Color.BLACK, 17));
+            ll_name.addView(newTextView(-3, 1, Gravity.LEFT, goods.desc, Color.GRAY, 12));
+            ll_row.addView(ll_name);
+            // 添加商品数量、单价和总价
+            ll_row.addView(newTextView(1, 1, Gravity.CENTER, "" + info.count, Color.BLACK, 17));
+            ll_row.addView(newTextView(1, 1, Gravity.RIGHT, "" + (int) goods.price, Color.BLACK, 15));
+            ll_row.addView(newTextView(1, 1, Gravity.RIGHT, "" + (int) (info.count * goods.price), Color.RED, 17));
+            // 给商品行添加点击事件
+            ll_row.setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    goDetail(info.goods_id);
+                }
+            });
+            // 给商品行注册上下文菜单，为防止重复注册，这里先注销再注册
+            unregisterForContextMenu(ll_row);
+            registerForContextMenu(ll_row);
+            mCartGoods.put(ll_row.getId(), info);
+            // 往购物车列表添加该商品行
+            ll_cart.addView(ll_row);
+        }
+        // 重新计算购物车中的商品总金额
+        refreshTotalPrice();
+    }
+
+    // 重新计算购物车中的商品总金额
+    private void refreshTotalPrice() {
+        int total_price = 0;
+        for (CartInfo info : mCartArray) {
+            GoodsInfo goods = mGoodsMap.get(info.goods_id);
+            total_price += goods.price * info.count;
+        }
+        tv_total_price.setText("" + total_price);
+    }
+
+    // 创建一个线性视图的框架
+    private LinearLayout newLinearLayout(int orientation, int height) {
+        LinearLayout ll_new = new LinearLayout(this);
+        LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
+                LayoutParams.MATCH_PARENT, height);
+        ll_new.setLayoutParams(params);
+        ll_new.setOrientation(orientation);
+        ll_new.setBackgroundColor(Color.WHITE);
+        return ll_new;
+    }
+
+    // 创建一个文本视图的模板
+    private TextView newTextView(int height, float weight, int gravity, String text, int textColor, int textSize) {
+        TextView tv_new = new TextView(this);
+        if (height == -3) {  // 垂直排列
+            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
+                    LayoutParams.MATCH_PARENT, 0, weight);
+            tv_new.setLayoutParams(params);
+        } else {  // 水平排列
+            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
+                    0, (height == 0) ? LayoutParams.WRAP_CONTENT : LayoutParams.MATCH_PARENT, weight);
+            tv_new.setLayoutParams(params);
+        }
+        tv_new.setText(text);
+        tv_new.setTextColor(textColor);
+        tv_new.setTextSize(TypedValue.COMPLEX_UNIT_SP, textSize);
+        tv_new.setGravity(Gravity.CENTER | gravity);
+        return tv_new;
+    }
+
+    private String mFirst = "true"; // 是否首次打开
+    // 模拟网络数据，初始化数据库中的商品信息
+    private void downloadGoods() {
+        // 获取共享参数保存的是否首次打开参数
+        mFirst = SharedUtil.getIntance(this).readShared("first", "true");
+        // 获取当前App的私有存储路径
+        String path = MainApplication.getInstance().getExternalFilesDir(
+                Environment.DIRECTORY_DOWNLOADS).toString() + "/";
+        if (mFirst.equals("true")) { // 如果是首次打开
+            ArrayList<GoodsInfo> goodsList = GoodsInfo.getDefaultList();
+            for (int i = 0; i < goodsList.size(); i++) {
+                GoodsInfo info = goodsList.get(i);
+                // 往商品数据库插入一条该商品的记录
+                long rowid = mGoodsHelper.insert(info);
+                info.rowid = rowid;
+                // 往全局内存写入商品小图
+                Bitmap thumb = BitmapFactory.decodeResource(getResources(), info.thumb);
+                MainApplication.getInstance().mIconMap.put(rowid, thumb);
+                String thumb_path = path + rowid + "_s.jpg";
+                FileUtil.saveImage(thumb_path, thumb);
+                info.thumb_path = thumb_path;                // 往SD卡保存商品大图
+                Bitmap pic = BitmapFactory.decodeResource(getResources(), info.pic);
+                String pic_path = path + rowid + ".jpg";
+                FileUtil.saveImage(pic_path, pic);
+                pic.recycle();
+                info.pic_path = pic_path;
+                // 更新商品数据库中该商品记录的图片路径
+                mGoodsHelper.update(info);
+            }
+        } else { // 不是首次打开
+            // 查询商品数据库中所有商品记录
+            ArrayList<GoodsInfo> goodsArray = mGoodsHelper.query("1=1");
+            for (int i = 0; i < goodsArray.size(); i++) {
+                GoodsInfo info = goodsArray.get(i);
+                // 从指定路径读取图片文件的位图数据
+                Bitmap thumb = BitmapFactory.decodeFile(info.thumb_path);
+                // 把该位图对象保存到应用实例的全局变量中
+                MainApplication.getInstance().mIconMap.put(info.rowid, thumb);
+            }
+        }
+        // 把是否首次打开写入共享参数
+        SharedUtil.getIntance(this).writeShared("first", "false");
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/ShoppingChannelActivity.java

@@ -0,0 +1,203 @@
+package com.example.storage;
+
+import android.annotation.SuppressLint;
+import android.content.Intent;
+import android.graphics.Color;
+import android.os.Bundle;
+import android.util.TypedValue;
+import android.view.Gravity;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.Button;
+import android.widget.ImageView;
+import android.widget.ImageView.ScaleType;
+import android.widget.LinearLayout;
+import android.widget.LinearLayout.LayoutParams;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.example.storage.bean.CartInfo;
+import com.example.storage.bean.GoodsInfo;
+import com.example.storage.database.CartDBHelper;
+import com.example.storage.database.GoodsDBHelper;
+import com.example.storage.util.DateUtil;
+import com.example.storage.util.SharedUtil;
+import com.example.storage.util.Utils;
+
+import java.util.ArrayList;
+
+
+@SuppressLint("SetTextI18n")
+public class ShoppingChannelActivity extends AppCompatActivity implements OnClickListener {
+    private TextView tv_count;
+    private LinearLayout ll_channel;
+    private int mCount; // 购物车中的商品数量
+    private GoodsDBHelper mGoodsHelper; // 声明一个商品数据库的帮助器对象
+    private CartDBHelper mCartHelper; // 声明一个购物车数据库的帮助器对象
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_shopping_channel);
+        TextView tv_title = findViewById(R.id.tv_title);
+        tv_count = findViewById(R.id.tv_count);
+        ll_channel = findViewById(R.id.ll_channel);
+        findViewById(R.id.iv_cart).setOnClickListener(this);
+        tv_title.setText("盲盒咖啡店");
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (v.getId() == R.id.iv_cart) { // 点击了购物车图标
+            // 跳转到购物车页面
+            Intent intent = new Intent(this, ShoppingCartActivity.class);
+            startActivity(intent);
+        }
+    }
+
+    // 把指定编号的商品添加到购物车
+    private void addToCart(long goods_id) {
+        mCount++;
+        tv_count.setText("" + mCount);
+        // 把购物车中的商品数量写入共享参数
+        SharedUtil.getIntance(this).writeShared("count", "" + mCount);
+        // 根据商品编号查询购物车数据库中的商品记录
+        CartInfo info = mCartHelper.queryByGoodsId(goods_id);
+        if (info != null) { // 购物车已存在该商品记录
+            info.count++; // 该商品的数量加一
+            info.update_time = DateUtil.getNowDateTime("");
+            // 更新购物车数据库中的商品记录信息
+            mCartHelper.update(info);
+        } else { // 购物车不存在该商品记录
+            info = new CartInfo();
+            info.goods_id = goods_id;
+            info.count = 1;
+            info.update_time = DateUtil.getNowDateTime("");
+            // 往购物车数据库中添加一条新的商品记录
+            mCartHelper.insert(info);
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // 获取共享参数保存的购物车中的商品数量
+        mCount = Integer.parseInt(SharedUtil.getIntance(this).readShared("count", "0"));
+        tv_count.setText("" + mCount);
+        // 获取商品数据库的帮助器对象
+        mGoodsHelper = GoodsDBHelper.getInstance(this, 1);
+        // 打开商品数据库的读连接
+        mGoodsHelper.openReadLink();
+        // 获取购物车数据库的帮助器对象
+        mCartHelper = CartDBHelper.getInstance(this, 1);
+        // 打开购物车数据库的写连接
+        mCartHelper.openWriteLink();
+        // 展示商品列表
+        showGoods();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        // 关闭商品数据库的数据库连接
+        mGoodsHelper.closeLink();
+        // 关闭购物车数据库的数据库连接
+        mCartHelper.closeLink();
+    }
+
+    private LayoutParams mFullParams, mHalfParams;
+
+    private void showGoods() {
+        // 移除线性布局ll_channel下面的所有子视图
+        ll_channel.removeAllViews();
+        // mFullParams这个布局参数的宽度占了一整行
+        mFullParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT);
+        // mHalfParams这个布局参数的宽度与其它布局平均分
+        mHalfParams = new LayoutParams(0, LayoutParams.WRAP_CONTENT, 1);
+        // 给mHalfParams设置四周的空白距离
+        mHalfParams.setMargins(Utils.dip2px(this, 2), Utils.dip2px(this, 2), Utils.dip2px(this, 2), Utils.dip2px(this, 2));
+        // 创建一行的线性布局
+        LinearLayout ll_row = newLinearLayout(LinearLayout.HORIZONTAL, 0);
+        // 查询商品数据库中的所有商品记录
+        ArrayList<GoodsInfo> goodsArray = mGoodsHelper.query("1=1");
+        int i = 0;
+        for (; i < goodsArray.size(); i++) {
+            final GoodsInfo info = goodsArray.get(i);
+            // 创建一个商品项的垂直线性布局，从上到下依次列出商品标题、商品图片、商品价格
+            LinearLayout ll_goods = newLinearLayout(LinearLayout.VERTICAL, 1);
+            ll_goods.setBackgroundColor(Color.WHITE);
+            // 添加商品标题
+            TextView tv_name = new TextView(this);
+            tv_name.setLayoutParams(mFullParams);
+            tv_name.setGravity(Gravity.CENTER);
+            tv_name.setText(info.name);
+            tv_name.setTextColor(Color.BLACK);
+            tv_name.setTextSize(TypedValue.COMPLEX_UNIT_SP, 17);
+            ll_goods.addView(tv_name);
+            // 添加商品小图
+            ImageView iv_thumb = new ImageView(this);
+            iv_thumb.setLayoutParams(new LayoutParams(
+                    LayoutParams.MATCH_PARENT, Utils.dip2px(this, 150)));
+            iv_thumb.setScaleType(ScaleType.FIT_CENTER);
+            iv_thumb.setImageBitmap(MainApplication.getInstance().mIconMap.get(info.rowid));
+            iv_thumb.setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    Intent intent = new Intent(ShoppingChannelActivity.this, ShoppingDetailActivity.class);
+                    intent.putExtra("goods_id", info.rowid);
+                    startActivity(intent);
+                }
+            });
+            ll_goods.addView(iv_thumb);
+            // 添加商品价格
+            LinearLayout ll_bottom = newLinearLayout(LinearLayout.HORIZONTAL, 0);
+            TextView tv_price = new TextView(this);
+            tv_price.setLayoutParams(new LayoutParams(0, LayoutParams.WRAP_CONTENT, 2));
+            tv_price.setGravity(Gravity.CENTER);
+            tv_price.setText("" + (int) info.price);
+            tv_price.setTextColor(Color.RED);
+            tv_price.setTextSize(TypedValue.COMPLEX_UNIT_SP, 15);
+            ll_bottom.addView(tv_price);
+            // 添加购物车按钮
+            Button btn_add = new Button(this);
+            btn_add.setLayoutParams(new LayoutParams(0, LayoutParams.WRAP_CONTENT, 3));
+            btn_add.setGravity(Gravity.CENTER);
+            btn_add.setText("加入购物车");
+            btn_add.setTextColor(Color.BLACK);
+            btn_add.setTextSize(TypedValue.COMPLEX_UNIT_SP, 15);
+            btn_add.setOnClickListener(new OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    addToCart(info.rowid);
+                    Toast.makeText(ShoppingChannelActivity.this,
+                            "已添加一份" + info.name + "到购物车", Toast.LENGTH_SHORT).show();
+                }
+            });
+            ll_bottom.addView(btn_add);
+            ll_goods.addView(ll_bottom);
+            // 把商品项添加到该行上
+            ll_row.addView(ll_goods);
+            // 每行放两个商品项，所以放满两个商品后，就要重新创建下一行的线性视图
+            if (i % 2 == 1) {
+                ll_channel.addView(ll_row);
+                ll_row = newLinearLayout(LinearLayout.HORIZONTAL, 0);
+            }
+        }
+        // 最后一行只有一个商品项，则补上一个空白格，然后把最后一行添加到ll_channel
+        if (i % 2 == 0) {
+            ll_row.addView(newLinearLayout(LinearLayout.VERTICAL, 1));
+            ll_channel.addView(ll_row);
+        }
+    }
+
+    // 创建一个线性视图的框架
+    private LinearLayout newLinearLayout(int orientation, int weight) {
+        LinearLayout ll_new = new LinearLayout(this);
+        ll_new.setLayoutParams((weight == 0) ? mFullParams : mHalfParams);
+        ll_new.setOrientation(orientation);
+        return ll_new;
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/ShoppingDetailActivity.java

@@ -0,0 +1,123 @@
+package com.example.storage;
+
+import android.annotation.SuppressLint;
+import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.Bundle;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.widget.ImageView;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.example.storage.bean.CartInfo;
+import com.example.storage.bean.GoodsInfo;
+import com.example.storage.database.CartDBHelper;
+import com.example.storage.database.GoodsDBHelper;
+import com.example.storage.util.DateUtil;
+import com.example.storage.util.SharedUtil;
+
+@SuppressLint("SetTextI18n")
+public class ShoppingDetailActivity extends AppCompatActivity implements OnClickListener {
+    private TextView tv_title;
+    private TextView tv_count;
+    private TextView tv_goods_price;
+    private TextView tv_goods_desc;
+    private ImageView iv_goods_pic;
+    private int mCount; // 购物车中的商品数量
+    private long mGoodsId; // 当前商品的商品编号
+    private GoodsDBHelper mGoodsHelper; // 声明一个商品数据库的帮助器对象
+    private CartDBHelper mCartHelper; // 声明一个购物车数据库的帮助器对象
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_shopping_detail);
+        tv_title = findViewById(R.id.tv_title);
+        tv_count = findViewById(R.id.tv_count);
+        tv_goods_price = findViewById(R.id.tv_goods_price);
+        tv_goods_desc = findViewById(R.id.tv_goods_desc);
+        iv_goods_pic = findViewById(R.id.iv_goods_pic);
+        findViewById(R.id.iv_cart).setOnClickListener(this);
+        findViewById(R.id.btn_add_cart).setOnClickListener(this);
+        // 获取共享参数保存的购物车中的商品数量
+        mCount = Integer.parseInt(SharedUtil.getIntance(this).readShared("count", "0"));
+        tv_count.setText("" + mCount);
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (v.getId() == R.id.iv_cart) { // 点击了购物车图标
+            // 跳转到购物车页面
+            Intent intent = new Intent(this, ShoppingCartActivity.class);
+            startActivity(intent);
+        } else if (v.getId() == R.id.btn_add_cart) { // 点击了“添加”按钮
+            // 把该商品添加到购物车
+            addToCart(mGoodsId);
+            Toast.makeText(this, "成功添加至购物车", Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    // 把指定编号的商品添加到购物车
+    private void addToCart(long goods_id) {
+        mCount++;
+        tv_count.setText("" + mCount);
+        // 把购物车中的商品数量写入共享参数
+        SharedUtil.getIntance(this).writeShared("count", "" + mCount);
+        // 根据商品编号查询购物车中的商品记录
+        CartInfo info = mCartHelper.queryByGoodsId(goods_id);
+        if (info != null) { // 购物车已存在该商品记录
+            info.count++; // 该商品的数量加一
+            info.update_time = DateUtil.getNowDateTime("");
+            // 更新购物车数据库中的商品记录信息
+            mCartHelper.update(info);
+        } else { // 购物车不存在该商品记录
+            info = new CartInfo();
+            info.goods_id = goods_id;
+            info.count = 1;
+            info.update_time = DateUtil.getNowDateTime("");
+            // 往购物车数据库中添加一条新的商品记录
+            mCartHelper.insert(info);
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        // 获取商品数据库的帮助器对象
+        mGoodsHelper = GoodsDBHelper.getInstance(this, 1);
+        // 打开商品数据库的读连接
+        mGoodsHelper.openReadLink();
+        // 获取购物车数据库的帮助器对象
+        mCartHelper = CartDBHelper.getInstance(this, 1);
+        // 打开购物车数据库的写连接
+        mCartHelper.openWriteLink();
+        // 展示商品详情
+        showDetail();
+    }
+
+    @Override
+    protected void onPause() {
+        super.onPause();
+        // 关闭商品数据库的数据库连接
+        mGoodsHelper.closeLink();
+        // 关闭购物车数据库的数据库连接
+        mCartHelper.closeLink();
+    }
+
+    private void showDetail() {
+        mGoodsId = getIntent().getLongExtra("goods_id", 0L);
+        if (mGoodsId > 0) {
+            GoodsInfo info = mGoodsHelper.queryById(mGoodsId);
+            tv_title.setText(info.name);
+            tv_goods_desc.setText(info.desc);
+            tv_goods_price.setText("" + info.price);
+            Bitmap pic = BitmapFactory.decodeFile(info.pic_path);
+            iv_goods_pic.setImageBitmap(pic);
+        }
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/User.java

@@ -0,0 +1,32 @@
+package com.example.storage;
+/**
+ * Created by littlecurl 2018/6/24
+ */
+public class User {
+    private String name;            //用户名
+    private String password;        //密码
+    public User(String name, String password) {
+        this.name = name;
+        this.password = password;
+    }
+    public String getName() {
+        return name;
+    }
+    public void setName(String name) {
+        this.name = name;
+    }
+    public String getPassword() {
+        return password;
+    }
+    public void setPassword(String password) {
+        this.password = password;
+    }
+    @Override
+    public String toString() {
+        return "User{" +
+                "name='" + name + '\'' +
+                ", password='" + password + '\'' +
+                '}';
+    }
+}
+

Coffeestore/app/src/main/java/com/example/storage/UserActivity.java

@@ -0,0 +1,22 @@
+package com.example.storage;
+
+import androidx.appcompat.app.AppCompatActivity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.view.View;
+
+public class UserActivity extends AppCompatActivity {
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_user);
+        getSupportActionBar().setTitle("个人中心");
+    }
+
+    public void Jumping(View view) {
+        Intent intent = new Intent(UserActivity.this, LoginActivity.class).setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
+        startActivity(intent);
+    }
+}

Coffeestore/app/src/main/java/com/example/storage/bean/CartInfo.java

@@ -0,0 +1,17 @@
+package com.example.storage.bean;
+
+public class CartInfo {
+    public long rowid;
+    public int xuhao;
+    public long goods_id;
+    public int count;
+    public String update_time;
+
+    public CartInfo() {
+        rowid = 0L;
+        xuhao = 0;
+        goods_id = 0L;
+        count = 0;
+        update_time = "";
+    }
+}

Coffeestore/app/src/main/java/com/example/storage/bean/GoodsInfo.java

@@ -0,0 +1,83 @@
+package com.example.storage.bean;
+
+import com.example.storage.R;
+
+import java.util.ArrayList;
+
+public class GoodsInfo {
+    public long rowid; // 行号
+    public int xuhao; // 序号1
+    public String name; // 名称
+    public String desc; // 描述
+    public float price; // 价格
+    public String thumb_path; // 图的保存路径
+    public String pic_path; // 图的保存路径
+    public int thumb; // 图的资源编号
+    public int pic; // 图的资源编号
+
+    public GoodsInfo() {
+        rowid = 0L;
+        xuhao = 0;
+        name = "";
+        desc = "";
+        price = 0;
+        thumb_path = "";
+        pic_path = "";
+        thumb = 0;
+        pic = 0;
+    }
+
+    // 声明一个商品的名称数组
+    private static String[] mNameArray = {
+            "来杯拿铁", "一杯咖啡", "神秘美式", "饮品+甜点套餐", "随便奶茶", "不知味气泡水"
+    };
+    // 声明一个商品的描述数组
+    private static String[] mDescArray = {
+            "来杯拿铁\n 欢迎来开盲盒啦！\n" +
+                    "杯型：大杯\n" +
+                    "温度: 热、冷、常温\n" ,
+            "一杯咖啡\n选择困难症的福音来啦！本店都是好喝的咖啡，不知道选那种咖啡的选择我，店家会给你搭配一杯的\n " +
+                    "杯型： 咱们家只有大杯哦!\n" +
+                    "温度：热、冷、常温三种哦！\n",
+            "神秘美式\n我是很神秘的美式哦！可以颠覆你对美式的想象哦！\n"+
+                    "杯型： 咱们家只有大杯哦!\n"+
+                    "温度：热、冷、常温三种哦！\n",
+            "饮品+甜点套餐\n 生活必须要多来一点甜甜的！\n" +
+                    "杯型： 咱们家只有大杯哦!\n" +
+                    "温度：热、冷、常温三种哦！\n",
+            "随便奶茶\n 当你想喝奶茶却不知道选什么奶茶的时候就选我好啦!\n" +
+                    "杯型： 咱们家只有大杯哦!\n" +
+                    "温度：热、冷、常温三种哦！\n",
+            "不知味气泡水\n 各种水果与气泡水碰撞在一起会是什么味道呢！\n" +
+                    "杯型： 咱们家只有大杯哦!\n" +
+                    "温度：热、冷、常温三种哦！\n",
+    };
+    // 声明一个商品的价格数组
+    private static float[] mPriceArray = {18, 18, 16, 25, 16, 15};
+    // 声明一个商品的小图数组
+    private static int[] mThumbArray = {
+            R.drawable.nt1, R.drawable.cf1, R.drawable.ms1,
+            R.drawable.td4, R.drawable.nc1, R.drawable.qps1
+    };
+    // 声明一个商品的大图数组
+    private static int[] mPicArray = {
+            R.drawable.ntall, R.drawable.cfall, R.drawable.msall,
+            R.drawable.tdall, R.drawable.ncall, R.drawable.qpsall
+    };
+
+    // 获取默认的信息列表
+    public static ArrayList<GoodsInfo> getDefaultList() {
+        ArrayList<GoodsInfo> goodsList = new ArrayList<GoodsInfo>();
+        for (int i = 0; i < mNameArray.length; i++) {
+            GoodsInfo info = new GoodsInfo();
+            info.name = mNameArray[i];
+            info.desc = mDescArray[i];
+            info.price = mPriceArray[i];
+            info.thumb = mThumbArray[i];
+            info.pic = mPicArray[i];
+            goodsList.add(info);
+        }
+        return goodsList;
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/database/CartDBHelper.java

@@ -0,0 +1,190 @@
+package com.example.storage.database;
+
+import java.util.ArrayList;
+
+import android.annotation.SuppressLint;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.util.Log;
+
+import com.example.storage.bean.CartInfo;
+
+@SuppressLint("DefaultLocale")
+public class CartDBHelper extends SQLiteOpenHelper {
+    private static final String TAG = "CartDBHelper";
+    private static final String DB_NAME = "cart.db"; // 数据库的名称
+    private static final int DB_VERSION = 1; // 数据库的版本号
+    private static CartDBHelper mHelper = null; // 数据库帮助器的实例
+    private SQLiteDatabase mDB = null; // 数据库的实例
+    private static final String TABLE_NAME = "cart_info"; // 表的名称
+
+    private CartDBHelper(Context context) {
+        super(context, DB_NAME, null, DB_VERSION);
+    }
+
+    private CartDBHelper(Context context, int version) {
+        super(context, DB_NAME, null, version);
+    }
+
+    // 利用单例模式获取数据库帮助器的唯一实例
+    public static CartDBHelper getInstance(Context context, int version) {
+        if (version > 0 && mHelper == null) {
+            mHelper = new CartDBHelper(context, version);
+        } else if (mHelper == null) {
+            mHelper = new CartDBHelper(context);
+        }
+        return mHelper;
+    }
+
+    // 打开数据库的读连接
+    public SQLiteDatabase openReadLink() {
+        if (mDB == null || !mDB.isOpen()) {
+            mDB = mHelper.getReadableDatabase();
+        }
+        return mDB;
+    }
+
+    // 打开数据库的写连接
+    public SQLiteDatabase openWriteLink() {
+        if (mDB == null || !mDB.isOpen()) {
+            mDB = mHelper.getWritableDatabase();
+        }
+        return mDB;
+    }
+
+    // 关闭数据库连接
+    public void closeLink() {
+        if (mDB != null && mDB.isOpen()) {
+            mDB.close();
+            mDB = null;
+        }
+    }
+
+    // 创建数据库，执行建表语句
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        Log.d(TAG, "onCreate");
+        String drop_sql = "DROP TABLE IF EXISTS " + TABLE_NAME + ";";
+        Log.d(TAG, "drop_sql:" + drop_sql);
+        db.execSQL(drop_sql);
+        String create_sql = "CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " ("
+                + "_id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,"
+                + "goods_id LONG NOT NULL," + "count INTEGER NOT NULL,"
+                + "update_time VARCHAR NOT NULL"
+                + ");";
+        Log.d(TAG, "create_sql:" + create_sql);
+        db.execSQL(create_sql);
+    }
+
+    // 修改数据库，执行表结构变更语句
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+    }
+
+    // 根据指定条件删除表记录
+    public int delete(String condition) {
+        // 执行删除记录动作，该语句返回删除记录的数目
+        return mDB.delete(TABLE_NAME, condition, null);
+    }
+
+    // 删除该表的所有记录
+    public int deleteAll() {
+        // 执行删除记录动作，该语句返回删除记录的数目
+        return mDB.delete(TABLE_NAME, "1=1", null);
+    }
+
+    // 往该表添加一条记录
+    public long insert(CartInfo info) {
+        ArrayList<CartInfo> infoArray = new ArrayList<CartInfo>();
+        infoArray.add(info);
+        return insert(infoArray);
+    }
+
+    // 往该表添加多条记录
+    public long insert(ArrayList<CartInfo> infoArray) {
+        long result = -1;
+        for (CartInfo info : infoArray) {
+            Log.d(TAG, "goods_id=" + info.goods_id + ", count=" + info.count);
+            // 如果存在相同rowid的记录，则更新记录
+            if (info.rowid > 0) {
+                String condition = String.format("rowid='%d'", info.rowid);
+                update(info, condition);
+                result = info.rowid;
+                continue;
+            }
+            // 不存在唯一性重复的记录，则插入新记录
+            ContentValues cv = new ContentValues();
+            cv.put("goods_id", info.goods_id);
+            cv.put("count", info.count);
+            cv.put("update_time", info.update_time);
+            // 执行插入记录动作，该语句返回插入记录的行号
+            result = mDB.insert(TABLE_NAME, "", cv);
+            // 添加成功后返回行号，失败后返回-1
+            if (result == -1) {
+                return result;
+            }
+        }
+        return result;
+    }
+
+    // 根据条件更新指定的表记录
+    public int update(CartInfo info, String condition) {
+        ContentValues cv = new ContentValues();
+        cv.put("goods_id", info.goods_id);
+        cv.put("count", info.count);
+        cv.put("update_time", info.update_time);
+        // 执行更新记录动作，该语句返回记录更新的数目
+        return mDB.update(TABLE_NAME, cv, condition, null);
+    }
+
+    public int update(CartInfo info) {
+        // 执行更新记录动作，该语句返回记录更新的数目
+        return update(info, "rowid=" + info.rowid);
+    }
+
+    // 根据指定条件查询记录，并返回结果数据队列
+    public ArrayList<CartInfo> query(String condition) {
+        String sql = String.format("select rowid,_id,goods_id,count,update_time" +
+                " from %s where %s;", TABLE_NAME, condition);
+        Log.d(TAG, "query sql: " + sql);
+        ArrayList<CartInfo> infoArray = new ArrayList<CartInfo>();
+        // 执行记录查询动作，该语句返回结果集的游标
+        Cursor cursor = mDB.rawQuery(sql, null);
+        // 循环取出游标指向的每条记录
+        while (cursor.moveToNext()) {
+            CartInfo info = new CartInfo();
+            info.rowid = cursor.getLong(0);
+            info.xuhao = cursor.getInt(1);
+            info.goods_id = cursor.getLong(2);
+            info.count = cursor.getInt(3);
+            info.update_time = cursor.getString(4);
+            infoArray.add(info);
+        }
+        cursor.close(); // 查询完毕，关闭游标
+        return infoArray;
+    }
+
+    // 根据行号查询指定记录
+    public CartInfo queryById(long rowid) {
+        CartInfo info = null;
+        ArrayList<CartInfo> infoArray = query(String.format("rowid='%d'", rowid));
+        if (infoArray.size() > 0) {
+            info = infoArray.get(0);
+        }
+        return info;
+    }
+
+    // 根据商品编号查询指定记录
+    public CartInfo queryByGoodsId(long goods_id) {
+        CartInfo info = null;
+        ArrayList<CartInfo> infoArray = query(String.format("goods_id='%d'", goods_id));
+        if (infoArray.size() > 0) {
+            info = infoArray.get(0);
+        }
+        return info;
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/database/GoodsDBHelper.java

@@ -0,0 +1,186 @@
+package com.example.storage.database;
+
+import java.util.ArrayList;
+
+import android.annotation.SuppressLint;
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+import android.util.Log;
+
+import com.example.storage.bean.GoodsInfo;
+
+@SuppressLint("DefaultLocale")
+public class GoodsDBHelper extends SQLiteOpenHelper {
+    private static final String TAG = "GoodsDBHelper";
+    private static final String DB_NAME = "goods.db"; // 数据库的名称
+    private static final int DB_VERSION = 1; // 数据库的版本号
+    private static GoodsDBHelper mHelper = null; // 数据库帮助器的实例
+    private SQLiteDatabase mDB = null; // 数据库的实例
+    private static final String TABLE_NAME = "goods_info"; // 表的名称
+
+    private GoodsDBHelper(Context context) {
+        super(context, DB_NAME, null, DB_VERSION);
+    }
+
+    private GoodsDBHelper(Context context, int version) {
+        super(context, DB_NAME, null, version);
+    }
+
+    // 利用单例模式获取数据库帮助器的唯一实例
+    public static GoodsDBHelper getInstance(Context context, int version) {
+        if (version > 0 && mHelper == null) {
+            mHelper = new GoodsDBHelper(context, version);
+        } else if (mHelper == null) {
+            mHelper = new GoodsDBHelper(context);
+        }
+        return mHelper;
+    }
+
+    // 打开数据库的读连接
+    public SQLiteDatabase openReadLink() {
+        if (mDB == null || !mDB.isOpen()) {
+            mDB = mHelper.getReadableDatabase();
+        }
+        return mDB;
+    }
+
+    // 打开数据库的写连接
+    public SQLiteDatabase openWriteLink() {
+        if (mDB == null || !mDB.isOpen()) {
+            mDB = mHelper.getWritableDatabase();
+        }
+        return mDB;
+    }
+
+    // 关闭数据库连接
+    public void closeLink() {
+        if (mDB != null && mDB.isOpen()) {
+            mDB.close();
+            mDB = null;
+        }
+    }
+
+    // 创建数据库，执行建表语句
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        Log.d(TAG, "onCreate");
+        String drop_sql = "DROP TABLE IF EXISTS " + TABLE_NAME + ";";
+        Log.d(TAG, "drop_sql:" + drop_sql);
+        db.execSQL(drop_sql);
+        String create_sql = "CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " ("
+                + "_id INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,"
+                + "name VARCHAR NOT NULL," + "desc VARCHAR NOT NULL,"
+                + "price FLOAT NOT NULL," + "thumb_path VARCHAR NOT NULL,"
+                + "pic_path VARCHAR NOT NULL"
+                + ");";
+        Log.d(TAG, "create_sql:" + create_sql);
+        db.execSQL(create_sql);
+    }
+
+    // 修改数据库，执行表结构变更语句
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+    }
+
+    // 根据指定条件删除表记录
+    public int delete(String condition) {
+        // 执行删除记录动作，该语句返回删除记录的数目
+        return mDB.delete(TABLE_NAME, condition, null);
+    }
+
+    // 删除该表的所有记录
+    public int deleteAll() {
+        // 执行删除记录动作，该语句返回删除记录的数目
+        return mDB.delete(TABLE_NAME, "1=1", null);
+    }
+
+    // 往该表添加一条记录
+    public long insert(GoodsInfo info) {
+        ArrayList<GoodsInfo> infoArray = new ArrayList<GoodsInfo>();
+        infoArray.add(info);
+        return insert(infoArray);
+    }
+
+    // 往该表添加多条记录
+    public long insert(ArrayList<GoodsInfo> infoArray) {
+        long result = -1;
+        for (GoodsInfo info : infoArray) {
+            // 如果存在相同rowid的记录，则更新记录
+            if (info.rowid > 0) {
+                String condition = String.format("rowid='%d'", info.rowid);
+                update(info, condition);
+                result = info.rowid;
+                continue;
+            }
+            // 不存在唯一性重复的记录，则插入新记录
+            ContentValues cv = new ContentValues();
+            cv.put("name", info.name);
+            cv.put("desc", info.desc);
+            cv.put("price", info.price);
+            cv.put("thumb_path", info.thumb_path);
+            cv.put("pic_path", info.pic_path);
+            // 执行插入记录动作，该语句返回插入记录的行号
+            result = mDB.insert(TABLE_NAME, "", cv);
+            // 添加成功后返回行号，失败后返回-1
+            if (result == -1) {
+                return result;
+            }
+        }
+        return result;
+    }
+
+    // 根据条件更新指定的表记录
+    public int update(GoodsInfo info, String condition) {
+        ContentValues cv = new ContentValues();
+        cv.put("name", info.name);
+        cv.put("desc", info.desc);
+        cv.put("price", info.price);
+        cv.put("thumb_path", info.thumb_path);
+        cv.put("pic_path", info.pic_path);
+        // 执行更新记录动作，该语句返回记录更新的数目
+        return mDB.update(TABLE_NAME, cv, condition, null);
+    }
+
+    public int update(GoodsInfo info) {
+        // 执行更新记录动作，该语句返回记录更新的数目
+        return update(info, "rowid=" + info.rowid);
+    }
+
+    // 根据指定条件查询记录，并返回结果数据队列
+    public ArrayList<GoodsInfo> query(String condition) {
+        String sql = String.format("select rowid,_id,name,desc,price,thumb_path,pic_path" +
+                " from %s where %s;", TABLE_NAME, condition);
+        Log.d(TAG, "query sql: " + sql);
+        ArrayList<GoodsInfo> infoArray = new ArrayList<GoodsInfo>();
+        // 执行记录查询动作，该语句返回结果集的游标
+        Cursor cursor = mDB.rawQuery(sql, null);
+        // 循环取出游标指向的每条记录
+        while (cursor.moveToNext()) {
+            GoodsInfo info = new GoodsInfo();
+            info.rowid = cursor.getLong(0);
+            info.xuhao = cursor.getInt(1);
+            info.name = cursor.getString(2);
+            info.desc = cursor.getString(3);
+            info.price = cursor.getFloat(4);
+            info.thumb_path = cursor.getString(5);
+            info.pic_path = cursor.getString(6);
+            infoArray.add(info);
+        }
+        cursor.close(); // 查询完毕，关闭游标
+        return infoArray;
+    }
+
+    // 根据行号查询指定记录
+    public GoodsInfo queryById(long rowid) {
+        GoodsInfo info = null;
+        ArrayList<GoodsInfo> infoArray = query(String.format("rowid='%d'", rowid));
+        if (infoArray.size() > 0) {
+            info = infoArray.get(0);
+        }
+        return info;
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/util/DateUtil.java

@@ -0,0 +1,39 @@
+package com.example.storage.util;
+
+import android.annotation.SuppressLint;
+import android.text.TextUtils;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+
+/**
+ *
+ */
+@SuppressLint("SimpleDateFormat")
+public class DateUtil {
+    public static String getNowDateTime(String formatStr) {
+        String format = formatStr;
+        if (TextUtils.isEmpty(format)) {
+            format = "yyyyMMddHHmmss";
+        }
+        SimpleDateFormat sdf = new SimpleDateFormat(format);
+        return sdf.format(new Date());
+    }
+
+    public static String getNowTime() {
+        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
+        return sdf.format(new Date());
+    }
+
+    public static String getNowTimeDetail() {
+        SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss.SSS");
+        return sdf.format(new Date());
+    }
+
+    public static String formatDate(long time) {
+        Date date = new Date(time);
+        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+        return sdf.format(date);
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/util/FileUtil.java

@@ -0,0 +1,133 @@
+package com.example.storage.util;
+
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.FilenameFilter;
+import java.util.ArrayList;
+import java.util.Locale;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+
+public class FileUtil {
+
+    // 把字符串保存到指定路径的文本文件
+    public static void saveText(String path, String txt) {
+        try {
+            // 根据指定文件路径构建文件输出流对象
+            FileOutputStream fos = new FileOutputStream(path);
+            // 把字符串写入文件输出流
+            fos.write(txt.getBytes());
+            // 关闭文件输出流
+            fos.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    // 从指定路径的文本文件中读取内容字符串
+    public static String openText(String path) {
+        String readStr = "";
+        try {
+            // 根据指定文件路径构建文件输入流对象
+            FileInputStream fis = new FileInputStream(path);
+            byte[] b = new byte[fis.available()];
+            // 从文件输入流读取字节数组
+            fis.read(b);
+            // 把字节数组转换为字符串
+            readStr = new String(b);
+            // 关闭文件输入流
+            fis.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 返回文本文件中的文本字符串
+        return readStr;
+    }
+
+    // 把位图数据保存到指定路径的图片文件
+    public static void saveImage(String path, Bitmap bitmap) {
+        try {
+            // 根据指定文件路径构建缓存输出流对象
+            BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(path));
+            // 把位图数据压缩到缓存输出流中
+            bitmap.compress(Bitmap.CompressFormat.JPEG, 80, bos);
+            // 完成缓存输出流的写入动作
+            bos.flush();
+            // 关闭缓存输出流
+            bos.close();
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    // 从指定路径的图片文件中读取位图数据
+    public static Bitmap openImage(String path) {
+        Bitmap bitmap = null;
+        try {
+            // 根据指定文件路径构建缓存输入流对象
+            BufferedInputStream bis = new BufferedInputStream(new FileInputStream(path));
+            // 从缓存输入流中解码位图数据
+            bitmap = BitmapFactory.decodeStream(bis);
+            bis.close(); // 关闭缓存输入流
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        // 返回图片文件中的位图数据
+        return bitmap;
+    }
+
+    public static ArrayList<File> getFileList(String path, String[] extendArray) {
+        ArrayList<File> displayedContent = new ArrayList<File>();
+        File[] files = null;
+        File directory = new File(path);
+        if (extendArray != null && extendArray.length > 0) {
+            FilenameFilter fileFilter = getTypeFilter(extendArray);
+            files = directory.listFiles(fileFilter);
+        } else {
+            files = directory.listFiles();
+        }
+
+        if (files != null) {
+            for (File f : files) {
+                if (!f.isDirectory() && !f.isHidden()) {
+                    displayedContent.add(f);
+                }
+            }
+        }
+        return displayedContent;
+    }
+
+    public static FilenameFilter getTypeFilter(String[] extendArray) {
+        final ArrayList<String> fileExtensions = new ArrayList<String>();
+        for (int i = 0; i < extendArray.length; i++) {
+            fileExtensions.add(extendArray[i]);
+        }
+        FilenameFilter fileNameFilter = new FilenameFilter() {
+            @Override
+            public boolean accept(File directory, String fileName) {
+                boolean matched = false;
+                File f = new File(String.format("%s/%s",
+                        directory.getAbsolutePath(), fileName));
+                matched = f.isDirectory();
+                if (!matched) {
+                    for (String s : fileExtensions) {
+                        s = String.format(".{0,}\\%s$", s);
+                        s = s.toUpperCase(Locale.getDefault());
+                        fileName = fileName.toUpperCase(Locale.getDefault());
+                        matched = fileName.matches(s);
+                        if (matched) {
+                            break;
+                        }
+                    }
+                }
+                return matched;
+            }
+        };
+        return fileNameFilter;
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/util/SharedUtil.java

@@ -0,0 +1,33 @@
+package com.example.storage.util;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+
+// 这是共享参数的工具类，统一对共享参数的读写操作
+public class SharedUtil {
+    private static SharedUtil mUtil; // 声明一个共享参数工具类的实例
+    private static SharedPreferences mShared; // 声明一个共享参数的实例
+
+    // 通过单例模式获取共享参数工具类的唯一实例
+    public static SharedUtil getIntance(Context ctx) {
+        if (mUtil == null) {
+            mUtil = new SharedUtil();
+        }
+        // 从share.xml中获取共享参数对象
+        mShared = ctx.getSharedPreferences("share", Context.MODE_PRIVATE);
+        return mUtil;
+    }
+
+    // 把配对信息写入共享参数
+    public void writeShared(String key, String value) {
+        SharedPreferences.Editor editor = mShared.edit(); // 获得编辑器的对象
+        editor.putString(key, value); // 添加一个指定键名的字符串参数
+        editor.commit(); // 提交编辑器中的修改
+    }
+
+    // 根据键名到共享参数中查找对应的值对象
+    public String readShared(String key, String defaultValue) {
+        return mShared.getString(key, defaultValue);
+    }
+
+}

Coffeestore/app/src/main/java/com/example/storage/util/Utils.java

@@ -0,0 +1,56 @@
+package com.example.storage.util;
+
+import android.content.Context;
+import android.util.DisplayMetrics;
+import android.view.WindowManager;
+
+/**
+ *
+ */
+public class Utils {
+    // 根据手机的分辨率从 dp 的单位 转成为 px(像素)
+    public static int dip2px(Context context, float dpValue) {
+        // 获取当前手机的像素密度
+        final float scale = context.getResources().getDisplayMetrics().density;
+        return (int) (dpValue * scale + 0.5f); // 四舍五入取整
+    }
+
+    // 根据手机的分辨率从 px(像素) 的单位 转成为 dp
+    public static int px2dip(Context context, float pxValue) {
+        // 获取当前手机的像素密度
+        final float scale = context.getResources().getDisplayMetrics().density;
+        return (int) (pxValue / scale + 0.5f); // 四舍五入取整
+    }
+
+    // 获得屏幕的宽度
+    public static int getScreenWidth(Context ctx) {
+        // 从系统服务中获取窗口管理器
+        WindowManager wm = (WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE);
+        DisplayMetrics dm = new DisplayMetrics();
+        // 从默认显示器中获取显示参数保存到dm对象中
+        wm.getDefaultDisplay().getMetrics(dm);
+        return dm.widthPixels; // 返回屏幕的宽度数值
+    }
+
+    // 获得屏幕的高度
+    public static int getScreenHeight(Context ctx) {
+        // 从系统服务中获取窗口管理器
+        WindowManager wm = (WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE);
+        DisplayMetrics dm = new DisplayMetrics();
+        // 从默认显示器中获取显示参数保存到dm对象中
+        wm.getDefaultDisplay().getMetrics(dm);
+        return dm.heightPixels; // 返回屏幕的高度数值
+    }
+
+    // 获得屏幕的像素密度
+    public static float getScreenDensity(Context ctx) {
+        // 从系统服务中获取窗口管理器
+        WindowManager wm = (WindowManager) ctx.getSystemService(Context.WINDOW_SERVICE);
+        DisplayMetrics dm = new DisplayMetrics();
+        // 从默认显示器中获取显示参数保存到dm对象中
+        wm.getDefaultDisplay().getMetrics(dm);
+        return dm.density; // 返回屏幕的像素密度数值
+    }
+
+}
+

Coffeestore/app/src/main/java/com/example/storage/util/ViewUtil.java

@@ -0,0 +1,55 @@
+package com.example.storage.util;
+
+import android.app.Activity;
+import android.content.Context;
+import android.text.InputFilter;
+import android.view.View;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+
+import java.lang.reflect.Field;
+
+/**
+ *
+ */
+public class ViewUtil {
+
+    // 获取编辑框的最大长度，通过反射机制调用隐藏方法
+    public static int getMaxLength(EditText et) {
+        int length = 0;
+        try {
+            InputFilter[] inputFilters = et.getFilters();
+            for (InputFilter filter : inputFilters) {
+                Class<?> c = filter.getClass();
+                if (c.getName().equals("android.text.InputFilter$LengthFilter")) {
+                    Field[] f = c.getDeclaredFields();
+                    for (Field field : f) {
+                        if (field.getName().equals("mMax")) {
+                            field.setAccessible(true);
+                            length = (Integer) field.get(filter);
+                        }
+                    }
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return length;
+    }
+
+    public static void hideAllInputMethod(Activity act) {
+        // 从系统服务中获取输入法管理器
+        InputMethodManager imm = (InputMethodManager) act.getSystemService(Context.INPUT_METHOD_SERVICE);
+        if (imm.isActive()) { // 软键盘如果已经打开则关闭之
+            imm.toggleSoftInput(0, InputMethodManager.HIDE_NOT_ALWAYS);
+        }
+    }
+
+    public static void hideOneInputMethod(Activity act, View v) {
+        // 从系统服务中获取输入法管理器
+        InputMethodManager imm = (InputMethodManager) act.getSystemService(Context.INPUT_METHOD_SERVICE);
+        // 关闭屏幕上的输入法软键盘
+        imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
+    }
+
+}

Coffeestore/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

Coffeestore/app/src/main/res/drawable/checkbox_selector.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_checked="true" android:drawable="@drawable/check_choose"/>
+    <item android:drawable="@drawable/check_unchoose"/>
+</selector>

Coffeestore/app/src/main/res/drawable/edit_text_bg.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle"
+    >
+
+    <stroke android:width="3dp" android:color="@color/green_500"/>
+
+    <corners android:radius="20dp" />
+</shape>

Coffeestore/app/src/main/res/drawable/editext_selector.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_focused="true" android:drawable="@drawable/shape_edit_focus"/>
+    <item android:drawable="@drawable/shape_edit_normal"/>
+</selector>

Coffeestore/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#008577"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

Coffeestore/app/src/main/res/drawable/selector_loginactivity_button.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <!--默认情况下是一个带圆角,蓝色背景,白色边框的矩形-->
+    <!--第二种方法-->
+    <item android:state_window_focused="false">
+        <shape android:shape="rectangle">
+            <!--圆角-->
+            <corners android:radius="5dp" />
+            <!--填充颜色-->
+            <solid android:color="@color/color_minefragment_top" />
+            <!--描边-->
+            <stroke android:width="1dp" android:color="#fff" />
+        </shape>
+    </item>
+    <!--单击时是一个带圆角,绿色背景,白色边框的矩形-->
+    <item android:state_pressed="true">
+        <shape android:shape="rectangle">
+            <!--圆角-->
+            <corners android:radius="5dp" />
+            <!--填充颜色-->
+            <solid android:color="#008B8B" />
+            <!--描边-->
+            <stroke android:width="1dp" android:color="#fff" />
+        </shape>
+    </item>
+</selector>

Coffeestore/app/src/main/res/drawable/shape_edit_focus.xml

@@ -0,0 +1,22 @@
+<?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="#ff0000ff" />
+
+    <corners
+        android:bottomLeftRadius="5dp"
+        android:bottomRightRadius="5dp"
+        android:topLeftRadius="5dp"
+        android:topRightRadius="5dp" />
+
+    <padding
+        android:bottom="2dp"
+        android:left="2dp"
+        android:right="2dp"
+        android:top="2dp" />
+
+</shape>

Coffeestore/app/src/main/res/drawable/shape_edit_normal.xml

@@ -0,0 +1,22 @@
+<?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="#ffaaaaaa" />
+
+    <corners
+        android:bottomLeftRadius="5dp"
+        android:bottomRightRadius="5dp"
+        android:topLeftRadius="5dp"
+        android:topRightRadius="5dp" />
+
+    <padding
+        android:bottom="2dp"
+        android:left="2dp"
+        android:right="2dp"
+        android:top="2dp" />
+
+</shape>

Coffeestore/app/src/main/res/drawable/shape_oval_red.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+	android:shape="oval" >
+
+    <solid android:color="#ff6666" />
+
+</shape>

Coffeestore/app/src/main/res/layout/activity_login.xml

@@ -0,0 +1,228 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+这里把整个Activity_login的布局设置成相对布局，
+因为相对布局比较灵活，想咋放咋放
+看代码，上来就是三个 xmlns，xml这仨字母认识，ns这俩字母是namespace的缩写
+正是有了这些namespace的声明，才能在不同的xml中使用相同的id名，
+而不会造成使用时的冲突2
+-->
+<RelativeLayout
+    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"
+    android:background="@drawable/bg1"
+    tools:context=".LoginActivity"
+    >
+    <!--
+    整体是相对布局，
+    在整体上方放三个东西，这三个东西也是相对布局
+    合在一起称为一个top
+    一个返回箭头   ←
+    两个文字显示   登录  注册
+    也就是说   login界面的上方长这个样子
+          ←   登录       注册
+    下面是具体代码
+    -->
+    <RelativeLayout
+        android:id="@+id/rl_loginactivity_top"
+        android:layout_width="match_parent"
+        android:layout_height="70dp" >
+        <ImageView
+            android:id="@+id/iv_loginactivity_back"
+            android:layout_width="30dp"
+            android:layout_height="30dp"
+            android:background="@drawable/ic_left_back"
+            android:layout_centerVertical="true"
+            android:layout_marginLeft="10dp"
+            android:clickable="true"
+            android:onClick="onClick"
+            android:visibility="gone"
+            />
+
+        <TextView
+            android:id="@+id/tv_loginactivity_login"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text=""
+            android:textColor="#fff"
+            android:textSize="20dp"
+            android:layout_toRightOf="@+id/iv_loginactivity_back"
+            android:layout_centerVertical="true"
+            android:layout_marginLeft="20dp"
+            />
+
+        <TextView
+            android:id="@+id/tv_name"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:layout_marginLeft="10dp"
+            android:layout_toRightOf="@+id/tv_loginactivity_login"
+            android:text="咖啡"
+            android:textColor="#fff"
+            android:textSize="20dp" />
+
+        <TextView
+            android:id="@+id/tv_loginactivity_register"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="注册"
+            android:textColor="#fff"
+            android:textSize="20dp"
+            android:layout_centerVertical="true"
+            android:layout_alignParentRight="true"
+            android:layout_marginRight="30dp"
+            android:clickable="true"
+            android:onClick="onClick"
+            />
+    </RelativeLayout>
+    <!--
+     顶部三个东西摆放好之后
+     就该来摆放登录时候的两个文本输入框了
+     用户名
+     密码
+     这个明显的是LinerLayout
+     LinerLayout必须指明orientation 方向 要么垂直vertical 要么水平 horizontal
+     这里显然是垂直vertical
+     -->
+    <LinearLayout
+        android:id="@+id/ll_loginactivity_two"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:layout_below="@+id/rl_loginactivity_top"
+        android:layout_marginTop="50dp"
+        android:layout_marginLeft="5dp"
+        android:layout_marginRight="5dp"
+        >
+        <ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="100dp"
+            android:src="@drawable/log4"
+            android:layout_marginBottom="30dp"
+            />
+        <LinearLayout
+            android:layout_marginLeft="50dp"
+            android:layout_marginRight="50dp"
+            android:layout_marginBottom="50dp"
+
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:id="@+id/tv_loginactivity_username"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textColor="@color/black"
+                android:textSize="20sp"
+                android:text="用户名：" />
+            <EditText
+                android:id="@+id/et_loginactivity_username"
+                android:layout_width="match_parent"
+                android:layout_height="40dp"
+                android:background="#E4E0E0"
+                android:textColor="@color/black"
+                android:hint="手机号/邮箱/用户名"/>
+        </LinearLayout>
+        <LinearLayout
+            android:layout_marginLeft="50dp"
+            android:layout_marginRight="50dp"
+            android:layout_marginBottom="50dp"
+
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:id="@+id/tv_loginactivity_password"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textSize="20sp"
+                android:textColor="@color/black"
+                android:text="密    码："/>
+            <EditText
+                android:id="@+id/et_loginactivity_password"
+                android:layout_width="match_parent"
+                android:layout_height="40dp"
+                android:hint="登录密码"
+                android:background="#E4E0E0"
+                android:textColor="@color/black"
+                android:inputType="textPassword"/>
+        </LinearLayout>
+    </LinearLayout>
+    <!--
+      填好用户名、密码后，就该点击登录按钮了
+      注意最后有一句： android:onClick="onClick"
+      这是应用了一个开源库，详细信息在loginActivity.java 中有注释
+      -->
+    <Button
+        android:layout_marginLeft="50dp"
+        android:layout_marginRight="50dp"
+
+        android:id="@+id/bt_loginactivity_login"
+        android:layout_width="match_parent"
+        android:layout_height="50dp"
+        android:layout_below="@+id/ll_loginactivity_two"
+        android:layout_marginTop="10dp"
+        android:background="@color/brown"
+        android:text="登   录"
+        android:textSize="20sp"
+        android:textColor="#fff"
+        android:gravity="center"
+        android:onClick="onClick"
+        />
+    <!--
+        为了App的人性化，
+        想到有以下三种无法密码登录的异常处理情况
+        一、密码错误，重新输入
+        二、忘记密码，重新修改密码
+        三、不想注册，通过短信验证登录
+        密码输错了，重新输入，这个没啥说的
+        忘记密码应该以一个可以点击的文字出现在登录按钮的左下方
+        短信验证登录也以一个可以点击的文字出现在登录按钮的右下方
+    -->
+    <TextView
+        android:id="@+id/tv_loginactivity_forget"
+        android:text="忘记密码"
+        android:textSize="15sp"
+        android:textColor="#f00"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="50dp"
+        android:layout_marginVertical="50dp"
+        android:layout_below="@+id/bt_loginactivity_login"
+        android:layout_alignLeft="@+id/bt_loginactivity_login"
+        />
+    <TextView
+        android:id="@+id/tv_loginactivity_check"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="验证码登录"
+        android:textSize="15sp"
+        android:textColor="#f00"
+        android:layout_marginRight="50dp"
+        android:layout_marginVertical="50dp"
+        android:layout_below="@+id/bt_loginactivity_login"
+        android:layout_alignRight="@+id/bt_loginactivity_login"
+        />
+    <!--
+    当然，QQ、微信、微博、GitHub...在当今如此火热
+    登录的时候完全可以免注册
+    直接使用第三方登录
+      -->
+    <TextView
+        android:id="@+id/tv_loginactivity_else"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/tv_loginactivity_forget"
+        android:layout_centerVertical="true"
+
+        android:layout_marginVertical="20dp"
+        android:layout_marginTop="500dp"
+        android:gravity="center"
+        android:text="----------------第三方登录----------------"
+        android:textSize="10sp"
+        android:textColor="@color/black"
+         />
+</RelativeLayout>

Coffeestore/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"
+   >
+
+    <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>

Coffeestore/app/src/main/res/layout/activity_register.xml

@@ -0,0 +1,202 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    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"
+    android:background="@drawable/bg1"
+    >
+
+    <RelativeLayout
+        android:id="@+id/rl_registeractivity_top"
+        android:layout_width="match_parent"
+        android:layout_height="70dp"
+
+        >
+        <ImageView
+            android:id="@+id/iv_registeractivity_back"
+            android:layout_width="30dp"
+            android:layout_height="30dp"
+            android:background="@drawable/ic_left_back"
+            android:layout_centerVertical="true"
+            android:layout_marginLeft="10dp"
+            android:clickable="true"
+            android:onClick="onClick"
+            />
+
+        <TextView
+            android:id="@+id/tv_registeractivity_register"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="注册"
+            android:textColor="#fff"
+            android:textSize="20dp"
+            android:layout_toRightOf="@+id/iv_registeractivity_back"
+            android:layout_centerVertical="true"
+            android:layout_marginLeft="20dp"
+            />
+
+        <TextView
+            android:id="@+id/tv_registeractivity_myname"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:layout_marginLeft="230dp"
+            android:layout_toRightOf="@+id/tv_registeractivity_register"
+            android:text="咖啡"
+            android:textColor="#fff"
+            android:textSize="20dp" />
+    </RelativeLayout>
+
+    <LinearLayout
+        android:id="@+id/ll_registeractivity_body"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:layout_below="@+id/rl_registeractivity_top"
+        android:layout_marginTop="10dp"
+        android:layout_marginLeft="5dp"
+        android:layout_marginRight="5dp"
+        >
+        <!-- 第一个文本编辑框  输入用户名 -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            android:layout_marginTop="30dp">
+            <TextView
+                android:id="@+id/tv_registeractivity_username"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textSize="20sp"
+                android:text="用户名："/>
+            <EditText
+                android:id="@+id/et_registeractivity_username"
+                android:layout_width="match_parent"
+                android:layout_height="50dp"
+                android:hint="请输入用户名"
+                android:textColor="@color/black"
+                android:background="#E4E0E0"
+                android:gravity="center_vertical"
+                android:layout_marginLeft="10dp"
+                />
+        </LinearLayout>
+        <!-- 第二个文本编辑框  输入密码 -->
+        <LinearLayout
+            android:layout_marginTop="10dp"
+
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:id="@+id/tv_registeractivity_password1"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textSize="20sp"
+                android:text="密    码："/>
+            <EditText
+                android:id="@+id/et_registeractivity_password1"
+                android:layout_width="match_parent"
+                android:layout_height="50dp"
+                android:gravity="center_vertical"
+                android:layout_marginLeft="10dp"
+                android:background="#E4E0E0"
+                android:textColor="@color/black"
+                android:inputType="textPassword"
+                android:hint="请输入密码" />
+        </LinearLayout>
+        <!-- 第三个文本编辑框  再次输入密码 -->
+        <LinearLayout
+            android:layout_marginTop="10dp"
+
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+            <TextView
+                android:id="@+id/tv_registeractivity_password2"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:textSize="20sp"
+                android:text="密    码："/>
+            <EditText
+                android:id="@+id/et_registeractivity_password2"
+                android:layout_width="match_parent"
+                android:layout_height="50dp"
+                android:hint="请再次输入密码"
+                android:textColor="@color/black"
+                android:gravity="center_vertical"
+                android:background="#E4E0E0"
+                android:layout_marginLeft="10dp"
+                android:inputType="textPassword"
+                />
+        </LinearLayout>
+        <!-- 验证码部分 -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginRight="15dp"
+            android:layout_marginTop="10dp"
+            android:orientation="horizontal" >
+            <!-- 第四个文本编辑框  输入验证码 -->
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="horizontal">
+                <TextView
+                    android:id="@+id/tv_registeractivity_phoneCodes"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textSize="20sp"
+                    android:text="验证码："/>
+                <EditText
+                    android:id="@+id/et_registeractivity_phoneCodes"
+                    android:layout_width="0dp"
+                    android:layout_weight="3"
+                    android:layout_height="50dp"
+                    android:layout_marginLeft="10dp"
+                    android:layout_marginRight="10dp"
+                    android:background="#E4E0E0"
+                    android:textColor="@color/black"
+                    android:hint="请输入4位验证码" />
+
+                <ImageView
+                    android:id="@+id/iv_registeractivity_showCode"
+                    android:layout_width="0dp"
+                    android:layout_height="70dp"
+                    android:layout_weight="1.5"
+                    android:clickable="true"
+                    android:onClick="onClick"
+                    android:layout_marginTop="-10dp"
+                    />
+            </LinearLayout>
+        </LinearLayout>
+        <!-- 注册按钮 -->
+        <Button
+            android:id="@+id/bt_registeractivity_register"
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:layout_marginLeft="5dp"
+            android:background="@drawable/selector_loginactivity_button"
+            android:textColor="#fff"
+            android:text="注册"
+            android:onClick="onClick"
+            android:layout_marginTop="40dp"
+            />
+
+        <RelativeLayout
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:id="@+id/rl_registeractivity_bottom"
+            android:layout_marginTop="10dp"
+            >
+            <TextView
+                android:layout_centerInParent="true"
+                android:text="注册即代表同意《用户协议》"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"/>
+        </RelativeLayout>
+
+    </LinearLayout>
+
+</RelativeLayout>

Coffeestore/app/src/main/res/layout/activity_shopping_cart.xml

@@ -0,0 +1,93 @@
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/bg5"
+    android:orientation="vertical">
+    <include layout="@layout/activity_shopping_title"/>
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+        <FrameLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="5dp">
+            <LinearLayout
+                android:id="@+id/ll_content"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:visibility="gone">
+                <LinearLayout
+                    android:id="@+id/ll_cart"
+                    android:layout_width="wrap_content"
+                    android:layout_height="200dp"
+                    android:orientation="vertical">
+                </LinearLayout>
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:padding="10dp">
+                    <TextView
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:gravity="center|right"
+                        android:text="总金额："
+                        android:textColor="@color/black"
+                        android:textSize="17sp"/>
+                    <TextView
+                        android:id="@+id/tv_total_price"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="2"
+                        android:gravity="center|left"
+                        android:textColor="@color/red"
+                        android:textSize="25sp"/>
+                    <Button
+                        android:id="@+id/btn_settle"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:gravity="center"
+                        android:text="结算"
+                        android:textColor="@color/black"
+                        android:textSize="20sp"/>
+                </LinearLayout>
+            </LinearLayout>
+            <LinearLayout
+                android:id="@+id/ll_empty"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:visibility="gone">
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginBottom="100dp"
+                    android:layout_marginTop="100dp"
+                    android:gravity="center"
+                    android:text="哎呀，购物车空空如也，快去选购商品吧"
+                    android:textColor="@color/black"
+                    android:textSize="17sp"/>
+                <Button
+                    android:id="@+id/btn_shopping_channel"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="center"
+                    android:text="盲盒咖啡店"
+                    android:textColor="@color/black"
+                    android:textSize="17sp"/>
+                <Button
+                    android:id="@+id/btn_shopping_grzx"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="center"
+                    android:text="去个人中心"
+                    android:textColor="@color/black"
+                    android:textSize="17sp"/>
+            </LinearLayout>
+        </FrameLayout>
+    </ScrollView>
+</LinearLayout>

Coffeestore/app/src/main/res/layout/activity_shopping_channel.xml

@@ -0,0 +1,23 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/bg5"
+    android:orientation="vertical" >
+
+    <include layout="@layout/activity_shopping_title" />
+
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        >
+
+        <LinearLayout
+            android:id="@+id/ll_channel"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="5dp"
+            android:orientation="vertical" >
+        </LinearLayout>
+    </ScrollView>
+
+</LinearLayout>

Coffeestore/app/src/main/res/layout/activity_shopping_detail.xml

@@ -0,0 +1,51 @@
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@drawable/bg5"
+    android:orientation="vertical" >
+
+    <include layout="@layout/activity_shopping_title" />
+
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" >
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:padding="5dp"
+            android:orientation="vertical" >
+
+            <ImageView
+                android:id="@+id/iv_goods_pic"
+                android:layout_width="match_parent"
+                android:layout_height="350dp"
+                android:scaleType="fitCenter" />
+
+            <TextView
+                android:id="@+id/tv_goods_price"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textColor="@color/red"
+                android:textSize="22sp" />
+
+            <TextView
+                android:id="@+id/tv_goods_desc"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textColor="@color/black"
+                android:textSize="15sp" />
+
+
+
+            <Button
+                android:id="@+id/btn_add_cart"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text="加入购物车"
+                android:textColor="@color/black"
+                android:textSize="17sp" />
+        </LinearLayout>
+    </ScrollView>
+
+</LinearLayout>

Coffeestore/app/src/main/res/layout/activity_shopping_title.xml

@@ -0,0 +1,50 @@
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:background="@color/bule"
+    >
+    <ImageView android:id="@+id/iv_menu"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentLeft="true"
+        android:scaleType="fitCenter"
+        android:src="@drawable/menu"
+        android:visibility="gone"/>
+
+    <TextView
+        android:id="@+id/tv_title"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:layout_centerInParent="true"
+        android:text="购  物  车"
+        android:gravity="center"
+        android:textColor="#fff"
+        android:textSize="25sp"
+        android:textStyle="bold" />
+
+    
+    <ImageView
+        android:id="@+id/iv_cart"
+        android:layout_width="60dp"
+        android:layout_height="match_parent"
+        android:layout_alignParentRight="true"
+        android:scaleType="fitCenter"
+        android:src="@drawable/cart" />
+    
+    <TextView
+        android:id="@+id/tv_count"
+        android:layout_width="20dp"
+        android:layout_height="20dp"
+        android:layout_alignParentTop="true"
+        android:layout_toRightOf="@+id/iv_cart"
+        android:layout_marginLeft="-20dp"
+        android:gravity="center"
+        android:background="@drawable/shape_oval_red"
+        android:text="0"
+        android:textColor="@color/white"
+        android:textSize="15sp" />
+    
+</LinearLayout>

Coffeestore/app/src/main/res/layout/activity_user.xml

@@ -0,0 +1,211 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout 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"
+    android:gravity="center"
+    android:background="@drawable/bg1"
+    android:orientation="vertical"
+    android:padding="10dp">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="50dp"
+        android:layout_marginTop="20dp"
+        android:layout_weight="1"
+        android:orientation="horizontal">
+
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:orientation="vertical">
+
+            <ImageView
+                android:id="@+id/imageView4"
+                android:layout_width="match_parent"
+                android:layout_height="90dp"
+                android:src="@drawable/daifukuan" />
+
+            <TextView
+                android:id="@+id/tv_dfk"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:text="待付款"
+                android:textColor="#050505"
+                android:textSize="20sp" />
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:orientation="vertical">
+
+            <ImageView
+                android:id="@+id/imageView5"
+                android:layout_width="match_parent"
+                android:layout_height="90dp"
+                android:src="@drawable/daishouhuo" />
+
+            <TextView
+                android:id="@+id/tv_dfh"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:text="待发货"
+                android:textColor="#050505"
+                android:textSize="20sp"/>
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:orientation="vertical">
+
+            <ImageView
+                android:id="@+id/imageView6"
+                android:layout_width="match_parent"
+                android:layout_height="90dp"
+                android:src="@drawable/pingjia" />
+
+            <TextView
+                android:id="@+id/textView6"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:text="待评价"
+                android:textColor="#050505"
+                android:textSize="20sp"/>
+
+        </LinearLayout>
+
+
+        <LinearLayout
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_weight="1"
+            android:orientation="vertical">
+
+            <ImageView
+                android:id="@+id/imageView7"
+                android:layout_width="match_parent"
+                android:layout_height="90dp"
+                android:src="@drawable/shouhou" />
+
+            <TextView
+                android:id="@+id/textView7"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:text="售后"
+                android:textColor="#050505"
+                android:textSize="20sp"/>
+        </LinearLayout>
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="30dp"
+        android:layout_weight="4"
+        android:orientation="vertical"
+        android:padding="5dp">
+
+        <Button
+            android:id="@+id/button7"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:backgroundTint="@color/white"
+            android:gravity="center_vertical"
+            android:text="收货地址"
+            android:textSize="20sp"
+            android:textColor="@color/black"
+            tools:background="f39ad2" />
+
+        <Button
+            android:id="@+id/button4"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:backgroundTint="@color/white"
+            android:gravity="center_vertical"
+            android:text="账户和安全"
+            android:textSize="20sp"
+            android:textColor="@color/black"
+            tools:background="f39ad2" />
+
+        <Button
+            android:id="@+id/button3"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:backgroundTint="@color/white"
+            android:gravity="center_vertical"
+            android:text="支付"
+            android:textSize="20sp"
+            android:textColor="@color/black"
+            tools:background="f39ad2" />
+
+        <Button
+            android:id="@+id/button8"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:backgroundTint="@color/white"
+            android:gravity="center_vertical"
+            android:text="消息通知"
+            android:textSize="20sp"
+            android:textColor="@color/black"
+            tools:background="f39ad2" />
+
+        <Button
+            android:id="@+id/button9"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:backgroundTint="@color/white"
+            android:gravity="center_vertical"
+            android:text="隐私"
+            android:textSize="20sp"
+            android:textColor="@color/black"
+            tools:background="f39ad2" />
+
+        <Button
+            android:id="@+id/button10"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="4"
+            android:backgroundTint="@color/white"
+            android:gravity="center_vertical"
+            android:text="通用"
+            android:textSize="20sp"
+            android:textColor="@color/black"
+            tools:background="f39ad2"/>
+
+    </LinearLayout>
+
+
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/btn_tuichu"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:paddingLeft="30dp"
+            android:layout_weight="1"
+            android:text="退出登录"
+            android:textSize="20sp"
+            android:onClick="Jumping"/>
+    </LinearLayout>
+</LinearLayout>

Coffeestore/app/src/main/res/menu/menu_cart.xml

@@ -0,0 +1,19 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <item
+        android:id="@+id/menu_shopping"
+        android:orderInCategory="1"
+        android:title="去商场购物"
+        />
+
+    <item
+        android:id="@+id/menu_clear"
+        android:orderInCategory="2"
+        android:title="清空购物车"/>
+    
+    <item
+        android:id="@+id/menu_return"
+        android:orderInCategory="9"
+        android:title="返回"/>
+    
+</menu>

Coffeestore/app/src/main/res/menu/menu_goods.xml

@@ -0,0 +1,13 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android" >
+
+    <item
+        android:id="@+id/menu_detail"
+        android:orderInCategory="1"
+        android:title="查看商品详情"/>
+
+    <item
+        android:id="@+id/menu_delete"
+        android:orderInCategory="2"
+        android:title="从购物车删除"/>
+    
+</menu>

Coffeestore/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>