diff --git a/Coffeestore/.gitignore b/Coffeestore/.gitignore new file mode 100644 index 0000000..aa724b7 --- /dev/null +++ b/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 diff --git a/Coffeestore/android b/Coffeestore/android new file mode 160000 index 0000000..759ef60 --- /dev/null +++ b/Coffeestore/android @@ -0,0 +1 @@ +Subproject commit 759ef60a4e1e9b83ba8e8486677ea7c01a1928cb diff --git a/Coffeestore/app/.gitignore b/Coffeestore/app/.gitignore new file mode 100644 index 0000000..42afabf --- /dev/null +++ b/Coffeestore/app/.gitignore @@ -0,0 +1 @@ +/build \ No newline at end of file diff --git a/Coffeestore/app/build.gradle b/Coffeestore/app/build.gradle new file mode 100644 index 0000000..1c48638 --- /dev/null +++ b/Coffeestore/app/build.gradle @@ -0,0 +1,42 @@ +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' +} \ No newline at end of file diff --git a/Coffeestore/app/debug/app-debug.apk b/Coffeestore/app/debug/app-debug.apk new file mode 100644 index 0000000..2f6a5f5 Binary files /dev/null and b/Coffeestore/app/debug/app-debug.apk differ diff --git a/Coffeestore/app/debug/output.json b/Coffeestore/app/debug/output.json new file mode 100644 index 0000000..f20a39f --- /dev/null +++ b/Coffeestore/app/debug/output.json @@ -0,0 +1 @@ +[{"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":{}}] \ No newline at end of file diff --git a/Coffeestore/app/proguard-rules.pro b/Coffeestore/app/proguard-rules.pro new file mode 100644 index 0000000..481bb43 --- /dev/null +++ b/Coffeestore/app/proguard-rules.pro @@ -0,0 +1,21 @@ +# 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 \ No newline at end of file diff --git a/Coffeestore/app/src/androidTest/java/com/example/storage/ApplicationTest.java b/Coffeestore/app/src/androidTest/java/com/example/storage/ApplicationTest.java new file mode 100644 index 0000000..02bd23e --- /dev/null +++ b/Coffeestore/app/src/androidTest/java/com/example/storage/ApplicationTest.java @@ -0,0 +1,12 @@ +package com.example.storage; + +import android.app.Application; + +/** + * Testing Fundamentals + */ +public class ApplicationTest { + public ApplicationTest() { + super(Application.class); + } +} \ No newline at end of file diff --git a/Coffeestore/app/src/main/AndroidManifest.xml b/Coffeestore/app/src/main/AndroidManifest.xml new file mode 100644 index 0000000..f197877 --- /dev/null +++ b/Coffeestore/app/src/main/AndroidManifest.xml @@ -0,0 +1,39 @@ + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/java/AndroidManifest.xml b/Coffeestore/app/src/main/java/AndroidManifest.xml new file mode 100644 index 0000000..c083928 --- /dev/null +++ b/Coffeestore/app/src/main/java/AndroidManifest.xml @@ -0,0 +1,39 @@ + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/java/com/example/storage/Code.java b/Coffeestore/app/src/main/java/com/example/storage/Code.java new file mode 100644 index 0000000..41d472a --- /dev/null +++ b/Coffeestore/app/src/main/java/com/example/storage/Code.java @@ -0,0 +1,148 @@ +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); + } +} + diff --git a/Coffeestore/app/src/main/java/com/example/storage/DBOpenHelper.java b/Coffeestore/app/src/main/java/com/example/storage/DBOpenHelper.java new file mode 100644 index 0000000..41ee580 --- /dev/null +++ b/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 getAllData(){ + + ArrayList list = new ArrayList(); + 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; + } +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/LoginActivity.java b/Coffeestore/app/src/main/java/com/example/storage/LoginActivity.java new file mode 100644 index 0000000..b9d2795 --- /dev/null +++ b/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 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; + } + } +} + + + diff --git a/Coffeestore/app/src/main/java/com/example/storage/MainApplication.java b/Coffeestore/app/src/main/java/com/example/storage/MainApplication.java new file mode 100644 index 0000000..6ced314 --- /dev/null +++ b/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 mIconMap = new HashMap(); + + // 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(); + } + + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/RegisterActivity.java b/Coffeestore/app/src/main/java/com/example/storage/RegisterActivity.java new file mode 100644 index 0000000..2a88347 --- /dev/null +++ b/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; + } + } +} + diff --git a/Coffeestore/app/src/main/java/com/example/storage/ShoppingCartActivity.java b/Coffeestore/app/src/main/java/com/example/storage/ShoppingCartActivity.java new file mode 100644 index 0000000..f06ffc1 --- /dev/null +++ b/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 mCartGoods = new HashMap(); + // 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 mCartArray = new ArrayList(); + // 声明一个根据商品编号查找商品信息的映射 + private HashMap mGoodsMap = new HashMap(); + + // 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 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 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"); + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/ShoppingChannelActivity.java b/Coffeestore/app/src/main/java/com/example/storage/ShoppingChannelActivity.java new file mode 100644 index 0000000..b2dbe68 --- /dev/null +++ b/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 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; + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/ShoppingDetailActivity.java b/Coffeestore/app/src/main/java/com/example/storage/ShoppingDetailActivity.java new file mode 100644 index 0000000..7c05d70 --- /dev/null +++ b/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); + } + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/User.java b/Coffeestore/app/src/main/java/com/example/storage/User.java new file mode 100644 index 0000000..78752bc --- /dev/null +++ b/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 + '\'' + + '}'; + } +} + diff --git a/Coffeestore/app/src/main/java/com/example/storage/UserActivity.java b/Coffeestore/app/src/main/java/com/example/storage/UserActivity.java new file mode 100644 index 0000000..01dc934 --- /dev/null +++ b/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); + } +} \ No newline at end of file diff --git a/Coffeestore/app/src/main/java/com/example/storage/bean/CartInfo.java b/Coffeestore/app/src/main/java/com/example/storage/bean/CartInfo.java new file mode 100644 index 0000000..9dbdbec --- /dev/null +++ b/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 = ""; + } +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/bean/GoodsInfo.java b/Coffeestore/app/src/main/java/com/example/storage/bean/GoodsInfo.java new file mode 100644 index 0000000..e61f51b --- /dev/null +++ b/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 getDefaultList() { + ArrayList goodsList = new ArrayList(); + 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; + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/database/CartDBHelper.java b/Coffeestore/app/src/main/java/com/example/storage/database/CartDBHelper.java new file mode 100644 index 0000000..e993391 --- /dev/null +++ b/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 infoArray = new ArrayList(); + infoArray.add(info); + return insert(infoArray); + } + + // 往该表添加多条记录 + public long insert(ArrayList 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 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 infoArray = new ArrayList(); + // 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 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 infoArray = query(String.format("goods_id='%d'", goods_id)); + if (infoArray.size() > 0) { + info = infoArray.get(0); + } + return info; + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/database/GoodsDBHelper.java b/Coffeestore/app/src/main/java/com/example/storage/database/GoodsDBHelper.java new file mode 100644 index 0000000..a0fd87b --- /dev/null +++ b/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 infoArray = new ArrayList(); + infoArray.add(info); + return insert(infoArray); + } + + // 往该表添加多条记录 + public long insert(ArrayList 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 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 infoArray = new ArrayList(); + // 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 infoArray = query(String.format("rowid='%d'", rowid)); + if (infoArray.size() > 0) { + info = infoArray.get(0); + } + return info; + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/util/DateUtil.java b/Coffeestore/app/src/main/java/com/example/storage/util/DateUtil.java new file mode 100644 index 0000000..42acb52 --- /dev/null +++ b/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); + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/util/FileUtil.java b/Coffeestore/app/src/main/java/com/example/storage/util/FileUtil.java new file mode 100644 index 0000000..2cfe3ee --- /dev/null +++ b/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 getFileList(String path, String[] extendArray) { + ArrayList displayedContent = new ArrayList(); + 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 fileExtensions = new ArrayList(); + 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; + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/util/SharedUtil.java b/Coffeestore/app/src/main/java/com/example/storage/util/SharedUtil.java new file mode 100644 index 0000000..3fc6be5 --- /dev/null +++ b/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); + } + +} diff --git a/Coffeestore/app/src/main/java/com/example/storage/util/Utils.java b/Coffeestore/app/src/main/java/com/example/storage/util/Utils.java new file mode 100644 index 0000000..12ec9bb --- /dev/null +++ b/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 + } + +} + diff --git a/Coffeestore/app/src/main/java/com/example/storage/util/ViewUtil.java b/Coffeestore/app/src/main/java/com/example/storage/util/ViewUtil.java new file mode 100644 index 0000000..88c7e65 --- /dev/null +++ b/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); + } + +} diff --git a/Coffeestore/app/src/main/res/drawable-hdpi/check_choose.png b/Coffeestore/app/src/main/res/drawable-hdpi/check_choose.png new file mode 100644 index 0000000..24ff38e Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable-hdpi/check_choose.png differ diff --git a/Coffeestore/app/src/main/res/drawable-hdpi/check_unchoose.png b/Coffeestore/app/src/main/res/drawable-hdpi/check_unchoose.png new file mode 100644 index 0000000..4423ce6 Binary 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a/Coffeestore/app/src/main/res/drawable/bg5.jpg b/Coffeestore/app/src/main/res/drawable/bg5.jpg new file mode 100644 index 0000000..c3d521b Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/bg5.jpg differ diff --git a/Coffeestore/app/src/main/res/drawable/cf1.png b/Coffeestore/app/src/main/res/drawable/cf1.png new file mode 100644 index 0000000..88bad79 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/cf1.png differ diff --git a/Coffeestore/app/src/main/res/drawable/cfall.jpg b/Coffeestore/app/src/main/res/drawable/cfall.jpg new file mode 100644 index 0000000..9804c65 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/cfall.jpg differ diff --git a/Coffeestore/app/src/main/res/drawable/checkbox_selector.xml b/Coffeestore/app/src/main/res/drawable/checkbox_selector.xml new file mode 100644 index 0000000..f986826 --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/checkbox_selector.xml @@ -0,0 +1,5 @@ + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/res/drawable/daifukuan.png b/Coffeestore/app/src/main/res/drawable/daifukuan.png new file mode 100644 index 0000000..ee0eda6 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/daifukuan.png differ diff --git a/Coffeestore/app/src/main/res/drawable/daishouhuo.png b/Coffeestore/app/src/main/res/drawable/daishouhuo.png new file mode 100644 index 0000000..7266b2a Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/daishouhuo.png differ diff --git a/Coffeestore/app/src/main/res/drawable/edit_text_bg.xml b/Coffeestore/app/src/main/res/drawable/edit_text_bg.xml new file mode 100644 index 0000000..79d9e38 --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/edit_text_bg.xml @@ -0,0 +1,9 @@ + + + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/res/drawable/editext_selector.xml b/Coffeestore/app/src/main/res/drawable/editext_selector.xml new file mode 100644 index 0000000..026b164 --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/editext_selector.xml @@ -0,0 +1,5 @@ + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/res/drawable/ic_launcher_background.xml b/Coffeestore/app/src/main/res/drawable/ic_launcher_background.xml new file mode 100644 index 0000000..0d025f9 --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/ic_launcher_background.xml @@ -0,0 +1,170 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/Coffeestore/app/src/main/res/drawable/ic_left_back.png b/Coffeestore/app/src/main/res/drawable/ic_left_back.png new file mode 100644 index 0000000..ddf2de1 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/ic_left_back.png differ diff --git a/Coffeestore/app/src/main/res/drawable/log4.jpg b/Coffeestore/app/src/main/res/drawable/log4.jpg new file mode 100644 index 0000000..f8070e5 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/log4.jpg differ diff --git a/Coffeestore/app/src/main/res/drawable/ms1.png b/Coffeestore/app/src/main/res/drawable/ms1.png new file mode 100644 index 0000000..8cd9917 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/ms1.png differ diff --git a/Coffeestore/app/src/main/res/drawable/msall.jpg b/Coffeestore/app/src/main/res/drawable/msall.jpg new file mode 100644 index 0000000..1153571 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/msall.jpg differ diff --git a/Coffeestore/app/src/main/res/drawable/nc1.png b/Coffeestore/app/src/main/res/drawable/nc1.png new file mode 100644 index 0000000..0c0018c Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/nc1.png differ diff --git a/Coffeestore/app/src/main/res/drawable/nc4.png b/Coffeestore/app/src/main/res/drawable/nc4.png new file mode 100644 index 0000000..91dc1d6 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/nc4.png differ diff --git a/Coffeestore/app/src/main/res/drawable/ncall.jpg b/Coffeestore/app/src/main/res/drawable/ncall.jpg new file mode 100644 index 0000000..ffad3dc Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/ncall.jpg differ diff --git a/Coffeestore/app/src/main/res/drawable/nt1.png b/Coffeestore/app/src/main/res/drawable/nt1.png new file mode 100644 index 0000000..a8e7a76 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/nt1.png differ diff --git a/Coffeestore/app/src/main/res/drawable/ntall.jpg b/Coffeestore/app/src/main/res/drawable/ntall.jpg new file mode 100644 index 0000000..da6c93c Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/ntall.jpg differ diff --git a/Coffeestore/app/src/main/res/drawable/pingjia.png b/Coffeestore/app/src/main/res/drawable/pingjia.png new file mode 100644 index 0000000..750c722 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/pingjia.png differ diff --git a/Coffeestore/app/src/main/res/drawable/qps1.png b/Coffeestore/app/src/main/res/drawable/qps1.png new file mode 100644 index 0000000..56565ab Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/qps1.png differ diff --git a/Coffeestore/app/src/main/res/drawable/qpsall.jpg b/Coffeestore/app/src/main/res/drawable/qpsall.jpg new file mode 100644 index 0000000..8e39fbe Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/qpsall.jpg differ diff --git a/Coffeestore/app/src/main/res/drawable/selector_loginactivity_button.xml b/Coffeestore/app/src/main/res/drawable/selector_loginactivity_button.xml new file mode 100644 index 0000000..abdf52d --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/selector_loginactivity_button.xml @@ -0,0 +1,26 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/res/drawable/shape_edit_focus.xml b/Coffeestore/app/src/main/res/drawable/shape_edit_focus.xml new file mode 100644 index 0000000..17e8662 --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/shape_edit_focus.xml @@ -0,0 +1,22 @@ + + + + + + + + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/res/drawable/shape_edit_normal.xml b/Coffeestore/app/src/main/res/drawable/shape_edit_normal.xml new file mode 100644 index 0000000..04f5b4f --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/shape_edit_normal.xml @@ -0,0 +1,22 @@ + + + + + + + + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/res/drawable/shape_oval_red.xml b/Coffeestore/app/src/main/res/drawable/shape_oval_red.xml new file mode 100644 index 0000000..24b679e --- /dev/null +++ b/Coffeestore/app/src/main/res/drawable/shape_oval_red.xml @@ -0,0 +1,7 @@ + + + + + + \ No newline at end of file diff --git a/Coffeestore/app/src/main/res/drawable/shouhou.png b/Coffeestore/app/src/main/res/drawable/shouhou.png new file mode 100644 index 0000000..d0897d0 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/shouhou.png differ diff --git a/Coffeestore/app/src/main/res/drawable/td4.png b/Coffeestore/app/src/main/res/drawable/td4.png new file mode 100644 index 0000000..0d6e0e9 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/td4.png differ diff --git a/Coffeestore/app/src/main/res/drawable/tdall.jpg b/Coffeestore/app/src/main/res/drawable/tdall.jpg new file mode 100644 index 0000000..6f251e5 Binary files /dev/null and b/Coffeestore/app/src/main/res/drawable/tdall.jpg differ diff --git a/Coffeestore/app/src/main/res/layout/activity_login.xml b/Coffeestore/app/src/main/res/layout/activity_login.xml new file mode 100644 index 0000000..a380cf9 --- /dev/null +++ b/Coffeestore/app/src/main/res/layout/activity_login.xml @@ -0,0 +1,228 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + +