Back Button Enabled to Dashboard

.gitignore

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+*.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
+# Gradle caches
+.gradle/
+
+# Ignore Android Studio specific files
+.idea/
+
+# Ignore build output directories
+build/
+app/build/
+
+# Ignore generated files
+gen/
+out/
+generated/
+
+# Log files
+*.log
+
+# Bytecode files
+*.class
+
+# Keystore files
+*.keystore
+
+# Apk files
+*.apk
+*.ap_
+
+# IntelliJ IDEA specific files
+*.iws
+*.ipr
+*.iws
+
+# Windows specific files
+Thumbs.db
+ehthumbs.db
+Desktop.ini
+
+# macOS specific files
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Thumbnails
+._*
+
+# Temporary files created by editors
+*.swp
+*.swo
+*~
+

.well-known/funding-manifest-urls

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+https://zendalona.com/funding.json

README.md

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-# zen-maths-tutor
+# MathMantra
 Maths-Tutor for smart devices

app/.gitignore

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+/build

app/build.gradle.kts

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+plugins {
+    id("com.android.application")
+}
+
+android {
+    namespace = "com.zendalona.mathmantra"
+    compileSdk = 34
+
+    defaultConfig {
+        applicationId = "com.zendalona.mathmantra"
+        minSdk = 30
+        targetSdk = 34
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    viewBinding {
+        enable = true
+    }
+}
+
+dependencies {
+
+    implementation("androidx.appcompat:appcompat:1.6.1")
+    implementation("com.google.android.material:material:1.11.0")
+    implementation("com.airbnb.android:lottie:4.2.2")
+    implementation("androidx.constraintlayout:constraintlayout:2.1.4")
+    implementation("androidx.fragment:fragment:1.8.2")
+    implementation("androidx.activity:activity:1.7.0")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+    implementation("com.github.bumptech.glide:glide:4.15.1")
+    annotationProcessor("com.github.bumptech.glide:compiler:4.15.1")
+}

app/proguard-rules.pro

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

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">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.RECORD_AUDIO"/>
+    <uses-permission android:name="android.permission.BODY_SENSORS"/>
+
+    <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:name=".MathMantra"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.MathMantra"
+        tools:targetApi="31">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        <meta-data
+            android:name="preloaded_fonts"
+            android:resource="@array/preloaded_fonts" />
+    </application>
+
+</manifest>

app/src/main/java/com/zendalona/mathmantra/MainActivity.java

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+package com.zendalona.mathmantra;
+
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.view.WindowInsetsCompat;
+import androidx.core.view.WindowInsetsControllerCompat;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
+
+import android.os.Bundle;
+import android.util.Log;
+
+import com.zendalona.mathmantra.databinding.ActivityMainBinding;
+import com.zendalona.mathmantra.ui.DashboardFragment;
+import com.zendalona.mathmantra.utils.FragmentNavigation;
+import com.zendalona.mathmantra.utils.PermissionManager;
+
+import java.util.Optional;
+
+public class MainActivity extends AppCompatActivity implements FragmentNavigation {
+    private ActivityMainBinding binding;
+    private PermissionManager permissionManager;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        binding = ActivityMainBinding.inflate(getLayoutInflater());
+        setContentView(binding.getRoot());
+
+        // Set immersive full-screen mode
+        WindowInsetsControllerCompat controller = new WindowInsetsControllerCompat(getWindow(), getWindow().getDecorView());
+        controller.hide(WindowInsetsCompat.Type.statusBars() | WindowInsetsCompat.Type.navigationBars());
+        controller.setSystemBarsBehavior(WindowInsetsControllerCompat.BEHAVIOR_SHOW_TRANSIENT_BARS_BY_SWIPE);
+
+        if (savedInstanceState == null) loadFragment(new DashboardFragment(), FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
+
+        setSupportActionBar(binding.toolbar);
+        ActionBar actionBar = getSupportActionBar();
+        if (actionBar != null) actionBar.setDisplayHomeAsUpEnabled(true);
+
+
+        //Permissions management
+        permissionManager = new PermissionManager(this, new PermissionManager.PermissionCallback() {
+            @Override
+            public void onPermissionGranted() {
+                Log.d("PermissionManager.PermissionCallback", "Granted!");
+            }
+            @Override
+            public void onPermissionDenied() {
+                Log.w("PermissionManager.PermissionCallback", "Denied!");
+            }
+        });
+        // TODO : ask for the sensor permissions
+        permissionManager.requestMicrophonePermission();
+//        permissionManager.requestAccelerometerPermission();
+    }
+
+    @Override
+    public boolean onSupportNavigateUp() {
+        loadFragment(new DashboardFragment(), FragmentTransaction.TRANSIT_FRAGMENT_CLOSE);
+        return true;
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        permissionManager.handlePermissionsResult(requestCode, permissions, grantResults);
+    }
+
+    public void loadFragment(Fragment fragment, int transition) {
+        FragmentManager fragmentManager = getSupportFragmentManager();
+        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
+        fragmentTransaction.setTransition(transition);
+        fragmentTransaction.replace(binding.fragmentContainer.getId(), fragment);
+        // TODO : binding.toolbar.setTitle();
+        fragmentTransaction.commit();
+    }
+
+}

app/src/main/java/com/zendalona/mathmantra/MathMantra.java

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+package com.zendalona.mathmantra;
+
+import android.app.Application;
+import androidx.appcompat.app.AppCompatDelegate;
+
+public class MathMantra extends Application {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        // Enforce Light Mode
+        AppCompatDelegate.setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
+    }
+}

app/src/main/java/com/zendalona/mathmantra/enums/Difficulty.java

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+package com.zendalona.mathmantra.enums;
+
+public enum Difficulty {
+    EASY,
+    MEDIUM,
+    HARD
+}

app/src/main/java/com/zendalona/mathmantra/enums/Topic.java

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+package com.zendalona.mathmantra.enums;
+
+public enum Topic {
+    ADDITION,
+    SUBTRACTION,
+    MULTIPLICATION,
+    DIVISION
+}