Modernize Android project and add CI

- Update Gradle wrapper from 1.12 to 8.7
- Migrate to AndroidX (Fragment, AppCompat, Core)
- Replace deprecated APIs (getColor, getFragmentManager)
- Update theme from Holo to AppCompat
- Add placeholder game assets (sprites and sounds)
- Add GitHub Actions workflow for automated builds
- Update .gitignore for modern Android development

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: elliptic1

.github/workflows/android-build.yml

@@ -0,0 +1,39 @@
+name: Android Build
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Build Debug APK
+        run: ./gradlew assembleDebug
+
+      - name: Upload APK artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: app-debug
+          path: app/build/outputs/apk/debug/app-debug.apk
+          retention-days: 14

.gitignore

@@ -1,5 +1,16 @@
-.gradle
-/local.properties
-/.idea/workspace.xml
+# Gradle
+.gradle/
+build/
+**/build/
+
+# Local configuration
+local.properties
+
+# IDE
+/.idea/
+*.iml
 .DS_Store
-/build
+
+# APK files
+*.apk
+*.aab

app/build.gradle

@@ -1,24 +1,42 @@
-apply plugin: 'com.android.application'
+plugins {
+    id 'com.android.application'
+}
 
 android {
     namespace 'com.tbse.nes.bubblebobble'
-    compileSdkVersion 34
+    compileSdk 34
 
     defaultConfig {
         applicationId "com.tbse.nes.bubblebobble"
-        minSdkVersion 19
-        targetSdkVersion 34
+        minSdk 21
+        targetSdk 34
         versionCode 1
         versionName "1.0"
     }
     buildTypes {
         release {
             minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
 }
 
 dependencies {
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.appcompat:appcompat:1.6.1'
+    implementation 'androidx.core:core:1.12.0'
+    implementation 'androidx.fragment:fragment:1.6.2'
+
+    // Fix Kotlin stdlib duplicate class issue
+    constraints {
+        implementation('org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.8.22') {
+            because 'kotlin-stdlib-jdk7 is part of kotlin-stdlib in 1.8+'
+        }
+        implementation('org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.8.22') {
+            because 'kotlin-stdlib-jdk8 is part of kotlin-stdlib in 1.8+'
+        }
+    }
 }

app/src/main/AndroidManifest.xml

@@ -1,19 +1,16 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.tbse.nes.bubblebobble" >
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
     <application
         android:allowBackup="true"
-        android:icon="@drawable/walk01"
+        android:icon="@drawable/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme"
         android:hardwareAccelerated="true">
 
         <activity
             android:name="com.tbse.nes.bubblebobble.ActivityMain"
             android:label="@string/app_name"
-            android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
             android:screenOrientation="landscape"
             android:exported="true" >
             <intent-filter>

app/src/main/java/com/tbse/nes/bubblebobble/ActivityMain.java

@@ -1,21 +1,22 @@
 package com.tbse.nes.bubblebobble;
 
-import android.app.Activity;
-import android.app.Fragment;
 import android.graphics.Typeface;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
 import android.widget.FrameLayout;
 
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+
 import com.tbse.nes.bubblebobble.Fragments.GameLevelFragment;
 import com.tbse.nes.bubblebobble.Fragments.StartScreenFragment;
 import com.tbse.nes.bubblebobble.Levels.Level01;
 
 import java.util.HashMap;
 
 
-public class ActivityMain extends Activity
+public class ActivityMain extends FragmentActivity
 {
 
    public static Typeface tf;
@@ -40,7 +41,7 @@ protected void onCreate(Bundle savedInstanceState)
 
         FrameLayout screen_layout = (FrameLayout) findViewById(R.id.mainFrameLayout);
 
-        getFragmentManager().beginTransaction().add(screen_layout.getId(), fragments.get(0))
+        getSupportFragmentManager().beginTransaction().add(screen_layout.getId(), fragments.get(0))
             .commit();
 
         int uiOptions = getWindow().getDecorView().getSystemUiVisibility();

app/src/main/java/com/tbse/nes/bubblebobble/Fragments/GameLevelFragment.java

@@ -1,6 +1,5 @@
 package com.tbse.nes.bubblebobble.Fragments;
 
-import android.app.Fragment;
 import android.content.Context;
 import android.media.MediaPlayer;
 import android.os.Bundle;
@@ -10,6 +9,8 @@
 import android.view.View;
 import android.view.ViewGroup;
 
+import androidx.fragment.app.Fragment;
+
 import com.tbse.nes.bubblebobble.DrawSurface;
 import com.tbse.nes.bubblebobble.GameThread;
 import com.tbse.nes.bubblebobble.R;
@@ -54,11 +55,11 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
 
         levelView.setOnTouchListener(this);
 
-        context = getActivity().getApplicationContext();
+        context = requireActivity().getApplicationContext();
 
         mGameScreen = (DrawSurface) levelView.findViewById(R.id.svGameScreen);
 
-        player = new Player(300, 300, 120, getActivity().getApplicationContext());
+        player = new Player(300, 300, 120, requireActivity().getApplicationContext());
 
         fruits = new ArrayList<Fruit>();
 
@@ -72,17 +73,17 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
                 container.getWidth()-225,
                 container.getHeight()-400,
                 200,
-                getActivity().getApplicationContext());
+                requireActivity().getApplicationContext());
         bButton = new BButton(
                 container.getWidth()-500,
                 container.getHeight()-250,
                 200,
-                getActivity().getApplicationContext());
+                requireActivity().getApplicationContext());
         dpad = new Dpad(
                 15,
                 container.getHeight()-10-300,
                 300,
-                getActivity().getApplicationContext());
+                requireActivity().getApplicationContext());
 
         bubbleShots = new ArrayList<BubbleShot>();
 
@@ -94,7 +95,7 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
     public void onResume() {
         super.onResume();
 
-        int uiOptions = getActivity().getWindow().getDecorView().getSystemUiVisibility();
+        int uiOptions = requireActivity().getWindow().getDecorView().getSystemUiVisibility();
 
         if ( ((uiOptions | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY) == uiOptions)) {
         } else {
@@ -112,7 +113,7 @@ public void onResume() {
             uiOptions ^= View.SYSTEM_UI_FLAG_FULLSCREEN;
         }
 
-        getActivity().getWindow().getDecorView().setSystemUiVisibility(uiOptions);
+        requireActivity().getWindow().getDecorView().setSystemUiVisibility(uiOptions);
 
     }
 
@@ -122,7 +123,7 @@ public void startGame()
         mGameThread.setRunning(true);
         mGameThread.start();
 
-        music = MediaPlayer.create(getActivity().getApplicationContext(), R.raw.main);
+        music = MediaPlayer.create(requireActivity().getApplicationContext(), R.raw.main);
         music.setLooping(true);
         music.start();
     }

app/src/main/java/com/tbse/nes/bubblebobble/Fragments/StartScreenFragment.java

@@ -1,6 +1,5 @@
 package com.tbse.nes.bubblebobble.Fragments;
 
-import android.app.Fragment;
 import android.media.MediaPlayer;
 import android.os.Bundle;
 import android.view.LayoutInflater;
@@ -9,6 +8,9 @@
 import android.view.ViewGroup;
 import android.widget.TextView;
 
+import androidx.core.content.ContextCompat;
+import androidx.fragment.app.Fragment;
+
 import com.tbse.nes.bubblebobble.ActivityMain;
 import com.tbse.nes.bubblebobble.R;
 
@@ -26,7 +28,7 @@ public View onCreateView(LayoutInflater inflater, ViewGroup container,
         // Inflate the layout for this fragment
         View startScreenView = inflater.inflate(R.layout.start_screen_fragment, container, false);
 
-        music = MediaPlayer.create(getActivity().getApplicationContext(), R.raw.intro);
+        music = MediaPlayer.create(requireActivity().getApplicationContext(), R.raw.intro);
         music.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
             @Override
             public void onCompletion(MediaPlayer mp) {
@@ -40,7 +42,7 @@ public void onCompletion(MediaPlayer mp) {
 
         final TextView tv = (TextView) startScreenView.findViewById(R.id.startGameText);
         tv.setTypeface(ActivityMain.tf);
-        tv.setTextColor(getResources().getColor(R.color.white));
+        tv.setTextColor(ContextCompat.getColor(requireContext(), R.color.white));
 
         tv.setOnTouchListener(new View.OnTouchListener() {
             @Override
@@ -50,12 +52,12 @@ public boolean onTouch(View v, MotionEvent event) {
                     music.stop();
                 }
                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
-                    tv.setTextColor(getResources().getColor(R.color.red));
+                    tv.setTextColor(ContextCompat.getColor(requireContext(), R.color.red));
                 }
                 if (event.getAction() == MotionEvent.ACTION_UP) {
 
-                    tv.setTextColor(getResources().getColor(R.color.white));
-                    getFragmentManager().beginTransaction().replace(
+                    tv.setTextColor(ContextCompat.getColor(requireContext(), R.color.white));
+                    getParentFragmentManager().beginTransaction().replace(
                             getId(), ActivityMain.fragments.get(1)
                     ).commit();
                 }