FrontCode

src/Front-end/.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

src/Front-end/app/.gitignore

@@ -0,0 +1 @@
+/build

src/Front-end/app/build.gradle

@@ -0,0 +1,46 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    namespace 'com.example.myapplication'
+    compileSdk 33
+
+    defaultConfig {
+        applicationId "com.example.myapplication"
+        minSdk 24
+        targetSdk 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_11
+        targetCompatibility JavaVersion.VERSION_11
+    }
+    buildFeatures {
+        viewBinding true
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.4.1'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.4.1'
+    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.4.1'
+    implementation 'androidx.navigation:navigation-fragment:2.4.1'
+    implementation 'androidx.navigation:navigation-ui:2.4.1'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}

src/Front-end/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

src/Front-end/app/src/androidTest/java/com/example/myapplication/ExampleInstrumentedTest.java

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+package com.example.myapplication;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.myapplication", appContext.getPackageName());
+    }
+}

src/Front-end/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">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.MyApplication"
+        tools:targetApi="31">
+        <activity
+            android:name=".BottomNavigiationActivity"
+            android:exported="true"
+            android:label="@string/title_activity_bottom_navigiation">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

src/Front-end/app/src/main/java/com/example/myapplication/BottomNavigiationActivity.java

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+package com.example.myapplication;
+
+import android.os.Bundle;
+import android.view.View;
+
+import com.example.myapplication.ui.Buttonfragments.RecycleGarbageFragment;
+import com.google.android.material.bottomnavigation.BottomNavigationView;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.Fragment;
+import androidx.navigation.NavController;
+import androidx.navigation.Navigation;
+import androidx.navigation.ui.AppBarConfiguration;
+import androidx.navigation.ui.NavigationUI;
+
+import com.example.myapplication.databinding.BottomNavigiationBinding;
+
+public class BottomNavigiationActivity extends AppCompatActivity implements View.OnClickListener {
+
+    private BottomNavigiationBinding binding;
+    private Fragment recycleGarbageFragment;
+
+    private Fragment kitchenGarbageFragment;
+
+    private Fragment otherGarbageFragment;
+
+    private Fragment hazardGarbageFragment;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        binding = BottomNavigiationBinding.inflate(getLayoutInflater());
+        setContentView(binding.getRoot());
+        BottomNavigationView navView = findViewById(R.id.nav_view);
+        recycleGarbageFragment=new RecycleGarbageFragment();
+        // Passing each menu ID as a set of Ids because each
+        // menu should be considered as top level destinations.
+        AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
+                R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications)
+                .build();
+        NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_bottom_navigiation);
+        NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
+        NavigationUI.setupWithNavController(binding.navView, navController);
+    }
+
+    @Override
+    public void onClick(View view) {
+        Fragment curFragment = getSupportFragmentManager().findFragmentById(R.id.content_container);
+        Fragment targetFargment = null;
+        switch (view.getId()) {
+            case R.id.recycle:
+                targetFargment=recycleGarbageFragment;
+                break;
+            case R.id.kitchen_garbage:
+                targetFargment=kitchenGarbageFragment;
+                break;
+            case R.id.other_garbage:
+                targetFargment=otherGarbageFragment;
+                break;
+            case R.id.hazardous_waste:
+                targetFargment=hazardGarbageFragment;
+                break;
+        }
+        getSupportFragmentManager().beginTransaction().replace(R.id.content_container,targetFargment).commit();
+    }
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/Buttonfragments/HazardGarbageFragment.java

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+package com.example.myapplication.ui.Buttonfragments;
+
+public class HazardGarbageFragment {
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/Buttonfragments/KithchenGarbageFragment.java

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+package com.example.myapplication.ui.Buttonfragments;
+
+public class KithchenGarbageFragment {
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/Buttonfragments/OtherGarbageFragment.java

@@ -0,0 +1,4 @@
+package com.example.myapplication.ui.Buttonfragments;
+
+public class OtherGarbageFragment {
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/Buttonfragments/RecycleGarbageFragment.java

@@ -0,0 +1,24 @@
+package com.example.myapplication.ui.Buttonfragments;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.Fragment;
+
+import com.example.myapplication.R;
+
+public class RecycleGarbageFragment extends Fragment {
+
+    public RecycleGarbageFragment() {
+        // Required empty public constructor
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.recycle_garbage, container, false);
+    }
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/dashboard/DashboardFragment.java

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+package com.example.myapplication.ui.dashboard;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import com.example.myapplication.R;
+import com.example.myapplication.databinding.FragmentDashboardBinding;
+
+public class DashboardFragment extends Fragment {
+
+    private FragmentDashboardBinding binding;
+
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             ViewGroup container, Bundle savedInstanceState) {
+        DashboardViewModel dashboardViewModel =
+                new ViewModelProvider(this).get(DashboardViewModel.class);
+
+        binding = FragmentDashboardBinding.inflate(inflater, container, false);
+        View root = binding.getRoot();
+        return root;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        binding = null;
+    }
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/dashboard/DashboardViewModel.java

@@ -0,0 +1,19 @@
+package com.example.myapplication.ui.dashboard;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+public class DashboardViewModel extends ViewModel {
+
+    private final MutableLiveData<String> mText;
+
+    public DashboardViewModel() {
+        mText = new MutableLiveData<>();
+        mText.setValue("This is dashboard fragment");
+    }
+
+    public LiveData<String> getText() {
+        return mText;
+    }
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/home/HomeFragment.java

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+package com.example.myapplication.ui.home;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import com.example.myapplication.databinding.FragmentHomeBinding;
+
+public class HomeFragment extends Fragment {
+
+    private FragmentHomeBinding binding;
+
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             ViewGroup container, Bundle savedInstanceState) {
+        HomeViewModel homeViewModel =
+                new ViewModelProvider(this).get(HomeViewModel.class);
+
+        binding = FragmentHomeBinding.inflate(inflater, container, false);
+        View root = binding.getRoot();
+
+        return root;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        binding = null;
+    }
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/home/HomeViewModel.java

@@ -0,0 +1,19 @@
+package com.example.myapplication.ui.home;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+public class HomeViewModel extends ViewModel {
+
+    private final MutableLiveData<String> mText;
+
+    public HomeViewModel() {
+        mText = new MutableLiveData<>();
+        mText.setValue("This is home fragment");
+    }
+
+    public LiveData<String> getText() {
+        return mText;
+    }
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/notifications/NotificationsFragment.java

@@ -0,0 +1,34 @@
+package com.example.myapplication.ui.notifications;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+
+import com.example.myapplication.databinding.FragmentNotificationsBinding;
+
+public class NotificationsFragment extends Fragment {
+
+    private FragmentNotificationsBinding binding;
+
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             ViewGroup container, Bundle savedInstanceState) {
+        NotificationsViewModel notificationsViewModel =
+                new ViewModelProvider(this).get(NotificationsViewModel.class);
+
+        binding = FragmentNotificationsBinding.inflate(inflater, container, false);
+        View root = binding.getRoot();
+        return root;
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        binding = null;
+    }
+}

src/Front-end/app/src/main/java/com/example/myapplication/ui/notifications/NotificationsViewModel.java

@@ -0,0 +1,19 @@
+package com.example.myapplication.ui.notifications;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+public class NotificationsViewModel extends ViewModel {
+
+    private final MutableLiveData<String> mText;
+
+    public NotificationsViewModel() {
+        mText = new MutableLiveData<>();
+        mText.setValue("This is notifications fragment");
+    }
+
+    public LiveData<String> getText() {
+        return mText;
+    }
+}

src/Front-end/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>

src/Front-end/app/src/main/res/drawable/button.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <gradient android:startColor="#c0000000"  android:endColor="#C07C7C7C" android:angle="90" /><!--背景颜色渐变 angle为渐变角度-->
+    <solid android:color="#c0000000" /><!-- 背景填充颜色 -->
+
+    <stroke android:width="3dp" android:color="#c0000000" /><!-- 描边，边框宽度、颜色 -->
+<!--    <corners android:radius="10dp" />&lt;!&ndash; 边角圆弧的半径 &ndash;&gt;-->
+    <padding android:left="3dp" android:top="3dp" android:right="3dp" android:bottom="3dp" /><!-- 四周留出来的空白 -->
+</shape>

src/Front-end/app/src/main/res/drawable/ic_dashboard_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M3,13h8L11,3L3,3v10zM3,21h8v-6L3,15v6zM13,21h8L21,11h-8v10zM13,3v6h8L21,3h-8z" />
+</vector>

src/Front-end/app/src/main/res/drawable/ic_home_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M10,20v-6h4v6h5v-8h3L12,3 2,12h3v8z" />
+</vector>

src/Front-end/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="#3DDC84"
+        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>

src/Front-end/app/src/main/res/drawable/ic_notifications_black_24dp.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,22c1.1,0 2,-0.9 2,-2h-4c0,1.1 0.89,2 2,2zM18,16v-5c0,-3.07 -1.64,-5.64 -4.5,-6.32L13.5,4c0,-0.83 -0.67,-1.5 -1.5,-1.5s-1.5,0.67 -1.5,1.5v0.68C7.63,5.36 6,7.92 6,11v5l-2,2v1h16v-1l-2,-2z" />
+</vector>

src/Front-end/app/src/main/res/drawable/your_image.xml

@@ -0,0 +1,5 @@
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@drawable/image_upload" android:state_pressed="true"/>
+    <item android:drawable="@drawable/image_upload" android:state_focused="true"/>
+    <item android:drawable="@drawable/image_upload"/>
+</selector>

src/Front-end/app/src/main/res/layout-v26/bottom_navigiation.xml

@@ -0,0 +1,33 @@
+<?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"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingTop="?attr/actionBarSize">
+
+    <com.google.android.material.bottomnavigation.BottomNavigationView
+        android:id="@+id/nav_view"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="0dp"
+        android:layout_marginEnd="0dp"
+        android:background="?android:attr/windowBackground"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:menu="@menu/bottom_nav_menu" />
+
+    <fragment
+        android:id="@+id/nav_host_fragment_bottom_navigiation"
+        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:defaultNavHost="true"
+        app:layout_constraintBottom_toTopOf="@id/nav_view"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:navGraph="@navigation/mobile_navigation" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/Front-end/app/src/main/res/layout/bottom_navigiation.xml

@@ -0,0 +1,34 @@
+<?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"
+    android:id="@+id/container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:paddingTop="?attr/actionBarSize">
+
+    <com.google.android.material.bottomnavigation.BottomNavigationView
+        android:id="@+id/nav_view"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="0dp"
+        android:layout_marginEnd="0dp"
+        android:background="?android:attr/windowBackground"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:menu="@menu/bottom_nav_menu" />
+
+    <fragment
+        android:id="@+id/nav_host_fragment_bottom_navigiation"
+        android:name="androidx.navigation.fragment.NavHostFragment"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        app:defaultNavHost="true"
+        app:iconTint="@null"
+        app:layout_constraintBottom_toTopOf="@id/nav_view"
+        app:layout_constraintLeft_toLeftOf="parent"
+        app:layout_constraintRight_toRightOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:navGraph="@navigation/mobile_navigation" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/Front-end/app/src/main/res/layout/fragment_dashboard.xml

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".BottomNavigiationActivity"
+    android:orientation="vertical">
+
+    <!-- 图标和文本的 LinearLayout -->
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="60dp"
+        android:layout_marginTop="30dp"
+        android:gravity="center">
+
+        <TextView
+            android:layout_width="400dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:text="垃圾桶定位"
+            android:textSize="27sp"
+            android:textStyle="bold" />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="400dp"
+        android:layout_height="400dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+
+        <EditText
+            android:id="@+id/edittext"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:hint="在此处插入地图" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="60dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+        <TextView
+            android:layout_width="140dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+        <Button
+            android:id="@+id/Get_Current_Location"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="获取当前位置"
+            android:gravity="center"
+            />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="60dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+
+        <TextView
+            android:layout_width="140dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold"
+            />
+        <Button
+            android:id="@+id/check_nearby_trash_cans"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="查看附近垃圾桶"
+            />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="60dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+
+        <TextView
+            android:layout_width="160dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+        <Button
+            android:id="@+id/navigation"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="导航"
+            />
+    </LinearLayout>
+</LinearLayout>

src/Front-end/app/src/main/res/layout/fragment_home.xml

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.home.HomeFragment">
+
+    <ImageButton
+        android:id="@id/recycle"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:src="@drawable/recycle"
+        android:scaleType="centerInside"
+        app:layout_constraintWidth_percent="0.25"
+        app:layout_constraintHeight_percent="0.10"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        android:background="@android:color/white"
+        />
+    <ImageButton
+        android:id="@id/kitchen_garbage"
+        android:src="@drawable/kitchen_garbage"
+        android:scaleType="centerInside"
+        app:layout_constraintWidth_percent="0.25"
+        app:layout_constraintHeight_percent="0.10"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:background="@color/white"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintLeft_toRightOf="@id/recycle"/>
+    <ImageButton
+        app:layout_constraintWidth_percent="0.25"
+        app:layout_constraintHeight_percent="0.10"
+        android:scaleType="centerInside"
+        android:id="@id/other_garbage"
+        android:src="@drawable/other_garbage"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:background="@color/white"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintLeft_toRightOf="@id/kitchen_garbage"/>
+    <ImageButton
+        app:layout_constraintWidth_percent="0.25"
+        app:layout_constraintHeight_percent="0.10"
+        android:scaleType="centerInside"
+        android:id="@id/hazardous_waste"
+        android:src="@drawable/hazardous_waste"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:background="@color/white"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintLeft_toRightOf="@id/other_garbage"/>
+    <FrameLayout
+        android:id="@+id/content_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

src/Front-end/app/src/main/res/layout/fragment_notifications.xml

@@ -0,0 +1,191 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".BottomNavigiationActivity"
+    android:orientation="vertical">
+
+    <!-- 图标和文本的 LinearLayout -->
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="60dp"
+        android:layout_marginTop="20dp"
+        android:gravity="center">
+
+        <TextView
+            android:layout_width="400dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:text="用户反馈"
+            android:textSize="27sp"
+            android:textStyle="bold" />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="60dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+        <TextView
+            android:layout_width="240dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:text="请选择反馈类型："
+            android:textSize="22sp"
+            android:textStyle="bold" />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="55dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+
+        <Button
+            android:id="@+id/user_experience"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="用户体验"
+            />
+        <TextView
+            android:layout_width="10dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+        <Button
+            android:id="@+id/identify_deviations"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="识别偏差"
+            tools:ignore="DuplicateIds" />
+        <TextView
+            android:layout_width="10dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+        <Button
+            android:id="@+id/functional_recommendations"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="功能建议"
+            tools:ignore="DuplicateIds" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+
+        <Button
+            android:id="@+id/classification_expansion"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="分类扩充"
+            tools:ignore="DuplicateIds" />
+        <TextView
+            android:layout_width="10dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+        <Button
+            android:id="@+id/other_issues"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="其他问题"
+            tools:ignore="DuplicateIds" />
+        <TextView
+            android:layout_width="10dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+        <Button
+            android:id="@+id/positive_recommendation"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="好评推荐"
+            tools:ignore="DuplicateIds" />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="55dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+        <TextView
+            android:layout_width="240dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:text="请详细补充反馈："
+            android:textSize="20sp"
+            android:textStyle="bold" />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="120dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+        <EditText
+            android:id="@+id/input_feedback"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:hint="在此处输入反馈"
+            android:gravity="center"
+            android:maxLength="150"
+            />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="55dp"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+
+        <TextView
+            android:layout_width="180dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:text="上传图片："
+            android:textSize="20sp"
+            android:textStyle="bold" />
+
+
+        <!--替换图片-->
+    </LinearLayout>
+
+    <!--    此处添加图片-->
+    <Button
+        android:id="@+id/btn_select_image"
+        android:layout_width="70dp"
+        android:layout_height="70dp"
+        android:background="@drawable/your_image"
+        android:text="选择图片"
+        />
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        android:gravity="center">
+
+        <Button
+            android:id="@+id/submit"
+            android:layout_width="90dp"
+            android:layout_height="60dp"
+            android:text="提交"
+            tools:ignore="DuplicateIds" />
+        <TextView
+            android:layout_width="20dp"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:textSize="20sp"
+            android:textStyle="bold" />
+        <Button
+            android:id="@+id/cancel"
+            android:layout_width="90dp"
+            android:layout_height="60dp"
+            android:text="取消"
+            tools:ignore="DuplicateIds" />
+    </LinearLayout>
+
+</LinearLayout>

src/Front-end/app/src/main/res/layout/hazard_garbage.xml

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

src/Front-end/app/src/main/res/layout/kitchen_garbage.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/Front-end/app/src/main/res/layout/other_garbage.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/Front-end/app/src/main/res/layout/recycle_garbage.xml

@@ -0,0 +1,25 @@
+<androidx.constraintlayout.widget.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.Buttonfragments.RecycleGarbageFragment">
+
+    <ImageView
+        android:id="@+id/img"
+        android:layout_width="405dp"
+        android:layout_height="143dp"
+        android:src="@drawable/recycle_garbage"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="可回收物就是再生资源，指生活垃圾中未经污染、适宜回收循环利用的废物。
+主要包括废弃电器电子产品、废纸张、废塑料、废玻璃、废金属等五类"
+        app:layout_constraintBaseline_toBottomOf="@+id/img"
+        app:layout_constraintLeft_toLeftOf="parent"
+        tools:layout_editor_absoluteY="143dp" />
+</androidx.constraintlayout.widget.ConstraintLayout>

src/Front-end/app/src/main/res/menu/bottom_nav_menu.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:id="@+id/navigation_home"
+        android:icon="@drawable/garbage_recogniton"
+        android:iconTint="@null"
+        android:title="@string/garbage_recognition" />
+
+    <item
+        android:id="@+id/navigation_dashboard"
+        android:icon="@drawable/map"
+        android:iconTint="@null"
+        android:title="@string/garbage_bin_location" />
+
+    <item
+        android:id="@+id/navigation_notifications"
+        android:iconTint="@null"
+        android:icon="@drawable/user_feed_back"
+        android:title="@string/user_feedback" />
+
+</menu>

src/Front-end/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>

src/Front-end/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.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>

src/Front-end/app/src/main/res/mipmap-anydpi-v33/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?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" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

src/Front-end/app/src/main/res/navigation/mobile_navigation.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<navigation 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:id="@+id/mobile_navigation"
+    app:startDestination="@+id/navigation_home">
+
+    <fragment
+        android:id="@+id/navigation_home"
+        android:name="com.example.myapplication.ui.home.HomeFragment"
+        android:label="@string/title_home"
+        tools:layout="@layout/fragment_home" />
+
+    <fragment
+        android:id="@+id/navigation_dashboard"
+        android:name="com.example.myapplication.ui.dashboard.DashboardFragment"
+        android:label="@string/title_dashboard"
+        tools:layout="@layout/fragment_dashboard" />
+
+    <fragment
+        android:id="@+id/navigation_notifications"
+        android:name="com.example.myapplication.ui.notifications.NotificationsFragment"
+        android:label="@string/title_notifications"
+        tools:layout="@layout/fragment_notifications" />
+</navigation>

src/Front-end/app/src/main/res/values-night/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.MyApplication" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@null</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@null</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

src/Front-end/app/src/main/res/values/colors.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+    <color name="grey">#CABFBF</color>
+</resources>

src/Front-end/app/src/main/res/values/dimen.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <dimen name="button_font_size">30sp</dimen>
+</resources>

src/Front-end/app/src/main/res/values/dimens.xml

@@ -0,0 +1,5 @@
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>

src/Front-end/app/src/main/res/values/ids.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <item name="recycle" type="id" />
+    <item name="kitchen_garbage" type="id" />
+    <item name="other_garbage" type="id" />
+    <item name="hazardous_waste" type="id" />
+</resources>

src/Front-end/app/src/main/res/values/strings.xml

@@ -0,0 +1,10 @@
+<resources>
+    <string name="app_name">My Application</string>
+    <string name="title_activity_bottom_navigiation">BottomNavigiationActivity</string>
+    <string name="title_home">Home</string>
+    <string name="title_dashboard">Dashboard</string>
+    <string name="title_notifications">Notifications</string>
+    <string name="garbage_recognition">垃圾识别</string>
+    <string name="garbage_bin_location">垃圾桶定位</string>
+    <string name="user_feedback">用户反馈</string>
+</resources>

src/Front-end/app/src/main/res/values/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.MyApplication" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">#0435FA</item>
+        <item name="colorPrimaryVariant">#0541F4</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">#0435FA</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

src/Front-end/app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

src/Front-end/app/src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>

src/Front-end/app/src/test/java/com/example/myapplication/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.example.myapplication;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

src/Front-end/build.gradle

@@ -0,0 +1,5 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id 'com.android.application' version '7.4.2' apply false
+    id 'com.android.library' version '7.4.2' apply false
+}

src/Front-end/chapter1/.gitignore

@@ -0,0 +1 @@
+/build

src/Front-end/chapter1/build.gradle

@@ -0,0 +1,40 @@
+plugins {
+    id 'com.android.application'
+}
+
+android {
+    namespace 'com.example.chapter1'
+    compileSdk 33
+
+    defaultConfig {
+        applicationId "com.example.chapter1"
+        minSdk 24
+        targetSdk 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:1.4.1'
+    implementation 'com.google.android.material:material:1.5.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
+}

src/Front-end/chapter1/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

src/Front-end/chapter1/src/androidTest/java/com/example/chapter1/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.chapter1;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.chapter1", appContext.getPackageName());
+    }
+}

src/Front-end/chapter1/src/main/AndroidManifest.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.MyApplication">
+        <activity
+            android:name=".MainActivity"
+            android:theme="@style/Theme.AppCompat"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>

src/Front-end/chapter1/src/main/java/com/example/chapter1/MainActivity.java

@@ -0,0 +1,32 @@
+package com.example.chapter1;
+
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
+
+public class MainActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setTheme(androidx.appcompat.R.style.Theme_AppCompat);
+        setContentView(R.layout.activity_main);
+
+
+        // 获取 FloatingActionButton 对象
+        FloatingActionButton fab = findViewById(R.id.fab);
+
+        // 添加 FloatingActionButton 的点击事件监听器
+        fab.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                // 处理 FloatingActionButton 的点击事件
+            }
+        });
+
+        // 其他初始化操作和逻辑处理
+    }
+}

src/Front-end/chapter1/src/main/java/com/example/chapter1/fragment/BlankFragment.java

@@ -0,0 +1,66 @@
+package com.example.chapter1.fragment;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.example.chapter1.R;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link BlankFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+public class BlankFragment extends Fragment {
+
+    // TODO: Rename parameter arguments, choose names that match
+    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
+    private static final String ARG_PARAM1 = "param1";
+    private static final String ARG_PARAM2 = "param2";
+
+    // TODO: Rename and change types of parameters
+    private String mParam1;
+    private String mParam2;
+
+    public BlankFragment() {
+        // Required empty public constructor
+    }
+
+    /**
+     * Use this factory method to create a new instance of
+     * this fragment using the provided parameters.
+     *
+     * @param param1 Parameter 1.
+     * @param param2 Parameter 2.
+     * @return A new instance of fragment BlankFragment.
+     */
+    // TODO: Rename and change types and number of parameters
+    public static BlankFragment newInstance(String param1, String param2) {
+        BlankFragment fragment = new BlankFragment();
+        Bundle args = new Bundle();
+        args.putString(ARG_PARAM1, param1);
+        args.putString(ARG_PARAM2, param2);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            mParam1 = getArguments().getString(ARG_PARAM1);
+            mParam2 = getArguments().getString(ARG_PARAM2);
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_blank, container, false);
+    }
+}

src/Front-end/chapter1/src/main/java/com/example/chapter1/fragment/ScrollingFragment.java

@@ -0,0 +1,23 @@
+package com.example.chapter1.fragment;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.fragment.app.Fragment;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.example.chapter1.R;
+
+class ScrollingFragment extends Fragment {
+
+    @Nullable
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater,
+                             @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_scrolling, container, false);
+    }
+}

src/Front-end/chapter1/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>

src/Front-end/chapter1/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="#3DDC84"
+        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>

src/Front-end/chapter1/src/main/res/layout/activity_main.xml

@@ -0,0 +1,46 @@
+<?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"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.coordinatorlayout.widget.CoordinatorLayout
+        android:id="@+id/coordinator_layout"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <!-- 添加其他布局和控件 -->
+
+        <com.google.android.material.appbar.AppBarLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <com.google.android.material.appbar.CollapsingToolbarLayout
+                android:id="@+id/collapsing_toolbar"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content">
+
+                <!-- 添加折叠式工具栏的内容 -->
+
+            </com.google.android.material.appbar.CollapsingToolbarLayout>
+
+        </com.google.android.material.appbar.AppBarLayout>
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recycler_view"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            app:layout_behavior="@string/appbar_scrolling_view_behavior" />
+
+        <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:id="@+id/fab"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_margin="16dp"
+            app:layout_anchor="@id/coordinator_layout"
+            app:layout_anchorGravity="bottom|end" />
+
+    </androidx.coordinatorlayout.widget.CoordinatorLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

src/Front-end/chapter1/src/main/res/layout/fragment_blank.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".fragment.BlankFragment">
+
+    <!-- TODO: Update blank fragment layout -->
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/hello_blank_fragment" />
+
+</FrameLayout>

src/Front-end/chapter1/src/main/res/layout/fragment_scrolling.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".fragment.ScrollingFragment">
+
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_margin="@dimen/text_margin"
+        android:text="@string/large_text" />
+</androidx.core.widget.NestedScrollView>

src/Front-end/chapter1/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>

src/Front-end/chapter1/src/main/res/mipmap-anydpi-v26/ic_launcher_round.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>

src/Front-end/chapter1/src/main/res/mipmap-anydpi-v33/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?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" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

src/Front-end/chapter1/src/main/res/values-night/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.MyApplication" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

src/Front-end/chapter1/src/main/res/values/colors.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>