Merge pull request #14794 from JosJuice/android-title-database

Android: Use TitleDatabase for game list

14 files changed, 193 insertions, 52 deletions

diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameAdapter.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameAdapter.kt
index dbcfdd42e2..e7ea8e5519 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameAdapter.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameAdapter.kt
@@ -61,13 +61,14 @@ class GameAdapter : RecyclerView.Adapter<GameViewHolder>(),
         val gameFile = mGameFiles[position]
 
         holder.apply {
+            val title = gameFile.getTitle(GameFileCacheManager.getTitleDatabase())
             if (BooleanSetting.MAIN_SHOW_GAME_TITLES.boolean) {
-                binding.textGameTitle.text = gameFile.getTitle()
+                binding.textGameTitle.text = title
                 binding.textGameTitle.visibility = View.VISIBLE
                 binding.textGameTitleInner.visibility = View.GONE
                 binding.textGameCaption.visibility = View.VISIBLE
             } else {
-                binding.textGameTitleInner.text = gameFile.getTitle()
+                binding.textGameTitleInner.text = title
                 binding.textGameTitleInner.visibility = View.VISIBLE
                 binding.textGameTitle.visibility = View.GONE
                 binding.textGameCaption.visibility = View.GONE
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameRowPresenter.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameRowPresenter.kt
index 4f43601e68..7cbb3000e2 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameRowPresenter.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/adapters/GameRowPresenter.kt
@@ -48,7 +48,7 @@ class GameRowPresenter : Presenter() {
 
         holder.apply {
             imageScreenshot.setImageDrawable(null)
-            cardParent.titleText = gameFile.getTitle()
+            cardParent.titleText = gameFile.getTitle(GameFileCacheManager.getTitleDatabase())
             holder.gameFile = gameFile
 
             // Set the background color of the card
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/dialogs/GameDetailsDialog.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/dialogs/GameDetailsDialog.kt
index 0384da89c0..b97fd987e6 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/dialogs/GameDetailsDialog.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/dialogs/GameDetailsDialog.kt
@@ -51,7 +51,7 @@ class GameDetailsDialog : DialogFragment() {
                     textTimePlayed.visibility = View.GONE
                 }
 
-                textGameTitle.text = gameFile.getTitle()
+                textGameTitle.text = gameFile.getTitle(GameFileCacheManager.getTitleDatabase())
                 textDescription.text = gameFile.getDescription()
                 if (gameFile.getDescription().isEmpty()) {
                     textDescription.visibility = View.GONE
@@ -118,7 +118,7 @@ class GameDetailsDialog : DialogFragment() {
                     textTimePlayed.visibility = View.GONE
                 }
 
-                textGameTitle.text = gameFile.getTitle()
+                textGameTitle.text = gameFile.getTitle(GameFileCacheManager.getTitleDatabase())
                 textDescription.text = gameFile.getDescription()
                 if (gameFile.getDescription().isEmpty()) {
                     tvBinding.textDescription.visibility = View.GONE
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/netplay/ui/NetplayScreen.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/netplay/ui/NetplayScreen.kt
index c3602facf4..97f456c7a6 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/netplay/ui/NetplayScreen.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/features/netplay/ui/NetplayScreen.kt
@@ -112,6 +112,7 @@ import org.dolphinemu.dolphinemu.features.netplay.model.Player
 import org.dolphinemu.dolphinemu.features.netplay.model.SaveTransferProgress
 import org.dolphinemu.dolphinemu.features.netplay.model.TraversalState
 import org.dolphinemu.dolphinemu.model.GameFile
+import org.dolphinemu.dolphinemu.services.GameFileCacheManager
 import org.dolphinemu.dolphinemu.ui.theme.DolphinScaffold
 import org.dolphinemu.dolphinemu.ui.theme.DolphinTheme
 import org.dolphinemu.dolphinemu.ui.theme.MenuSpacer
@@ -855,6 +856,7 @@ private fun GameGridItem(
     gameFile: GameFile,
     onClick: () -> Unit,
 ) {
+    val titleDatabase = GameFileCacheManager.getTitleDatabase()
     Card(
         onClick = onClick,
     ) {
@@ -864,7 +866,7 @@ private fun GameGridItem(
                     .data(gameFile)
                     .error(R.drawable.no_banner)
                     .build(),
-                contentDescription = gameFile.getTitle(),
+                contentDescription = gameFile.getTitle(titleDatabase),
                 contentScale = ContentScale.Crop,
                 imageLoader = CoilUtils.imageLoader,
                 modifier = Modifier
@@ -872,7 +874,7 @@ private fun GameGridItem(
                     .aspectRatio(0.7f)
             )
             Text(
-                text = gameFile.getTitle(),
+                text = gameFile.getTitle(titleDatabase),
                 style = MaterialTheme.typography.bodySmall,
                 maxLines = 2,
                 minLines = 2,
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/GameFile.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/GameFile.kt
index 26da174285..4794f5c1b7 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/GameFile.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/GameFile.kt
@@ -12,7 +12,7 @@ class GameFile private constructor(private val pointer: Long) {
 
     external fun getPlatform(): Int
 
-    external fun getTitle(): String
+    external fun getTitle(titleDatabase: TitleDatabase?): String
 
     external fun getDescription(): String
 
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/TitleDatabase.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/TitleDatabase.kt
new file mode 100644
index 0000000000..e5089673b8
--- /dev/null
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/model/TitleDatabase.kt
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+package org.dolphinemu.dolphinemu.model
+
+import androidx.annotation.Keep
+
+@Keep
+class TitleDatabase private constructor(private val pointer: Long) {
+    external fun finalize()
+
+    external fun userTitleMapEquals(other: TitleDatabase?): Boolean
+
+    companion object {
+        @JvmStatic
+        external suspend fun load(): TitleDatabase
+    }
+}
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/GameFileCacheManager.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/GameFileCacheManager.kt
index 2ba2c246b3..a5e54aa0de 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/GameFileCacheManager.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/GameFileCacheManager.kt
@@ -2,32 +2,36 @@
 
 package org.dolphinemu.dolphinemu.services
 
-import android.os.Handler
-import android.os.Looper
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
+import androidx.lifecycle.asFlow
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.MainScope
+import kotlinx.coroutines.async
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import org.dolphinemu.dolphinemu.features.settings.model.BooleanSetting
 import org.dolphinemu.dolphinemu.features.settings.model.ConfigChangedCallback
 import org.dolphinemu.dolphinemu.model.GameFile
 import org.dolphinemu.dolphinemu.model.GameFileCache
+import org.dolphinemu.dolphinemu.model.TitleDatabase
 import org.dolphinemu.dolphinemu.ui.platform.Platform
 import org.dolphinemu.dolphinemu.ui.platform.PlatformTab
 import org.dolphinemu.dolphinemu.utils.AfterDirectoryInitializationRunner
 import java.util.Arrays
-import java.util.concurrent.ExecutorService
-import java.util.concurrent.Executors
+import java.util.concurrent.atomic.AtomicReference
 
 /**
- * Loads game list data on a separate thread.
+ * Loads game list data in the background.
  */
 object GameFileCacheManager {
     private var gameFileCache: GameFileCache? = null
     private val gameFiles = MutableLiveData(emptyArray<GameFile>())
+    private var titleDatabase = AtomicReference<TitleDatabase>(null)
     private var firstLoadDone = false
-    private var runRescanAfterLoad = false
     private var recursiveScanEnabled = false
 
-    private val executor: ExecutorService = Executors.newFixedThreadPool(1)
     private val loadInProgress = MutableLiveData(false)
     private val rescanInProgress = MutableLiveData(false)
 
@@ -88,6 +92,8 @@ object GameFileCacheManager {
         }
     }
 
+    fun getTitleDatabase(): TitleDatabase? = titleDatabase.get()
+
     /**
      * Returns true if in the process of loading the cache for the first time.
      */
@@ -120,7 +126,9 @@ object GameFileCacheManager {
 
         if (!loadInProgress.value!!) {
             loadInProgress.value = true
-            AfterDirectoryInitializationRunner().runWithoutLifecycle { executor.execute(::load) }
+            AfterDirectoryInitializationRunner().runWithoutLifecycle {
+                MainScope().launch { load() }
+            }
         }
     }
 
@@ -136,7 +144,9 @@ object GameFileCacheManager {
 
         if (!rescanInProgress.value!!) {
             rescanInProgress.value = true
-            AfterDirectoryInitializationRunner().runWithoutLifecycle { executor.execute(::rescan) }
+            AfterDirectoryInitializationRunner().runWithoutLifecycle {
+                MainScope().launch { rescan() }
+            }
         }
     }
 
@@ -144,9 +154,9 @@ object GameFileCacheManager {
     fun addOrGet(gamePath: String?): GameFile {
         val nonNullGamePath = gamePath!!
 
-        // Common case: The game is in the cache, so just grab it from there. (GameFileCache.addOrGet
+        // Common case: The game is in the cache, so we grab it from there. (GameFileCache.addOrGet
         // actually already checks for this case, but we want to avoid calling it if possible
-        // because the executor thread may hold a lock on gameFileCache for extended periods of time.)
+        // because rescan() may hold a lock on gameFileCache for extended periods of time.)
         val allGames = gameFiles.value!!
         for (game in allGames) {
             if (game.getPath() == nonNullGamePath) {
@@ -165,28 +175,28 @@ object GameFileCacheManager {
      * games are still present in the user's configured folders.
      * If this has already been called, calling it again has no effect.
      */
-    private fun load() {
+    private suspend fun load() {
         if (!firstLoadDone) {
-            firstLoadDone = true
-            setUpAutomaticRescan()
-            gameFileCache!!.load()
-            if (gameFileCache!!.getSize() != 0) {
-                updateGameFileArray()
+            val titleDatabaseJob = MainScope().async(Dispatchers.IO) {
+                TitleDatabase.load()
             }
-        }
 
-        if (runRescanAfterLoad) {
-            // Without this, there will be a short blip where the loading indicator in the GUI disappears
-            // because neither loadInProgress nor rescanInProgress is true
-            rescanInProgress.postValue(true)
-        }
+            withContext(Dispatchers.IO) {
+                setUpAutomaticRescan()
+
+                gameFileCache!!.load()
+
+                titleDatabase.set(titleDatabaseJob.await())
 
-        loadInProgress.postValue(false)
+                if (gameFileCache!!.getSize() != 0) {
+                    updateGameFileArray()
+                }
+            }
 
-        if (runRescanAfterLoad) {
-            runRescanAfterLoad = false
-            rescan()
+            firstLoadDone = true
         }
+
+        loadInProgress.value = false
     }
 
     /**
@@ -195,19 +205,35 @@ object GameFileCacheManager {
      * If load hasn't been called before this, the execution of this
      * will be postponed until after load runs.
      */
-    private fun rescan() {
-        if (!firstLoadDone) {
-            runRescanAfterLoad = true
-        } else {
-            val gamePaths = GameFileCache.getAllGamePaths()
+    private suspend fun rescan() {
+        while (!firstLoadDone) {
+            // Wait until loadInProgress becomes false
+            loadInProgress.asFlow().first { !it }
+        }
 
+        val titleDatabaseJob = MainScope().async(Dispatchers.IO) {
+            val newTitleDatabase = TitleDatabase.load()
+            val titleDatabaseChanged =
+                !newTitleDatabase.userTitleMapEquals(titleDatabase.get())
+            if (titleDatabaseChanged) newTitleDatabase else null
+        }
+
+        withContext(Dispatchers.IO) {
+            val gamePaths = GameFileCache.getAllGamePaths()
             val changed = gameFileCache!!.update(gamePaths)
             if (changed) {
                 updateGameFileArray()
             }
 
             val additionalMetadataChanged = gameFileCache!!.updateAdditionalMetadata()
-            if (additionalMetadataChanged) {
+
+            val newTitleDatabase = titleDatabaseJob.await()
+            val titleDatabaseChanged = newTitleDatabase != null
+            if (titleDatabaseChanged) {
+                titleDatabase.set(newTitleDatabase)
+            }
+
+            if (additionalMetadataChanged || titleDatabaseChanged) {
                 updateGameFileArray()
             }
 
@@ -216,13 +242,14 @@ object GameFileCacheManager {
             }
         }
 
-        rescanInProgress.postValue(false)
+        rescanInProgress.value = false
     }
 
     private fun updateGameFileArray() {
         val gameFilesTemp = gameFileCache!!.getAllGames()
+        val titleDatabase = titleDatabase.get()
         Arrays.sort(gameFilesTemp) { lhs, rhs ->
-            lhs.getTitle().compareTo(rhs.getTitle(), ignoreCase = true)
+            lhs.getTitle(titleDatabase).compareTo(rhs.getTitle(titleDatabase), ignoreCase = true)
         }
         gameFiles.postValue(gameFilesTemp)
     }
@@ -239,10 +266,10 @@ object GameFileCacheManager {
     private fun setUpAutomaticRescan() {
         recursiveScanEnabled = BooleanSetting.MAIN_RECURSIVE_ISO_PATHS.boolean
         ConfigChangedCallback {
-            Handler(Looper.getMainLooper()).post {
-                val recursiveScanEnabled = BooleanSetting.MAIN_RECURSIVE_ISO_PATHS.boolean
-                if (this.recursiveScanEnabled != recursiveScanEnabled) {
-                    this.recursiveScanEnabled = recursiveScanEnabled
+            MainScope().launch {
+                val newRecursiveScanEnabled = BooleanSetting.MAIN_RECURSIVE_ISO_PATHS.boolean
+                if (recursiveScanEnabled != newRecursiveScanEnabled) {
+                    recursiveScanEnabled = newRecursiveScanEnabled
                     startRescan()
                 }
             }
diff --git a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/SyncProgramsJobService.kt b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/SyncProgramsJobService.kt
index 2d9ad354fb..fd13ff3175 100644
--- a/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/SyncProgramsJobService.kt
+++ b/Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/services/SyncProgramsJobService.kt
@@ -138,7 +138,10 @@ class SyncProgramsJobService : JobService() {
                 TvContractCompat.PreviewPrograms.COLUMN_TYPE,
                 TvContractCompat.PreviewProgramColumns.TYPE_GAME
             )
-            values.put(TvContract.Programs.COLUMN_TITLE, game.getTitle())
+            values.put(
+                TvContract.Programs.COLUMN_TITLE,
+                game.getTitle(GameFileCacheManager.getTitleDatabase())
+            )
             values.put(TvContract.Programs.COLUMN_SHORT_DESCRIPTION, game.getDescription())
             values.put(TvContract.Programs.COLUMN_POSTER_ART_URI, banner.toString())
             values.put(
diff --git a/Source/Android/jni/AndroidCommon/IDCache.cpp b/Source/Android/jni/AndroidCommon/IDCache.cpp
index 58cec02308..8d774dbbd9 100644
--- a/Source/Android/jni/AndroidCommon/IDCache.cpp
+++ b/Source/Android/jni/AndroidCommon/IDCache.cpp
@@ -151,6 +151,10 @@ static jclass s_audio_utils_class;
 static jmethodID s_audio_utils_get_sample_rate;
 static jmethodID s_audio_utils_get_frames_per_buffer;
 
+static jclass s_title_database_class;
+static jfieldID s_title_database_pointer;
+static jmethodID s_title_database_constructor;
+
 namespace IDCache
 {
 JNIEnv* GetEnvForThread()
@@ -721,6 +725,21 @@ jmethodID GetAudioUtilsGetFramesPerBuffer()
   return s_audio_utils_get_frames_per_buffer;
 }
 
+jclass GetTitleDatabaseClass()
+{
+  return s_title_database_class;
+}
+
+jfieldID GetTitleDatabasePointer()
+{
+  return s_title_database_pointer;
+}
+
+jmethodID GetTitleDatabaseConstructor()
+{
+  return s_title_database_constructor;
+}
+
 }  // namespace IDCache
 
 extern "C" {
@@ -1015,6 +1034,13 @@ JNIEXPORT jint JNI_OnLoad(JavaVM* vm, void* reserved)
       env->GetStaticMethodID(audio_utils_class, "getFramesPerBuffer", "()I");
   env->DeleteLocalRef(audio_utils_class);
 
+  const jclass title_database_class =
+      env->FindClass("org/dolphinemu/dolphinemu/model/TitleDatabase");
+  s_title_database_class = reinterpret_cast<jclass>(env->NewGlobalRef(title_database_class));
+  s_title_database_pointer = env->GetFieldID(title_database_class, "pointer", "J");
+  s_title_database_constructor = env->GetMethodID(title_database_class, "<init>", "(J)V");
+  env->DeleteLocalRef(title_database_class);
+
   return JNI_VERSION;
 }
 
diff --git a/Source/Android/jni/AndroidCommon/IDCache.h b/Source/Android/jni/AndroidCommon/IDCache.h
index 43c4f43585..1483b3bbd3 100644
--- a/Source/Android/jni/AndroidCommon/IDCache.h
+++ b/Source/Android/jni/AndroidCommon/IDCache.h
@@ -150,4 +150,8 @@ jclass GetAudioUtilsClass();
 jmethodID GetAudioUtilsGetSampleRate();
 jmethodID GetAudioUtilsGetFramesPerBuffer();
 
+jclass GetTitleDatabaseClass();
+jfieldID GetTitleDatabasePointer();
+jmethodID GetTitleDatabaseConstructor();
+
 }  // namespace IDCache
diff --git a/Source/Android/jni/CMakeLists.txt b/Source/Android/jni/CMakeLists.txt
index a7ee0b6b3a..59e1e1138e 100644
--- a/Source/Android/jni/CMakeLists.txt
+++ b/Source/Android/jni/CMakeLists.txt
@@ -13,6 +13,8 @@ add_library(main SHARED
   GameList/GameFile.cpp
   GameList/GameFile.h
   GameList/GameFileCache.cpp
+  GameList/TitleDatabase.cpp
+  GameList/TitleDatabase.h
   GpuDriver.cpp
   HotkeyScheduler.cpp
   HotkeyScheduler.h
diff --git a/Source/Android/jni/GameList/GameFile.cpp b/Source/Android/jni/GameList/GameFile.cpp
index dc922d701c..e13f5c810a 100644
--- a/Source/Android/jni/GameList/GameFile.cpp
+++ b/Source/Android/jni/GameList/GameFile.cpp
@@ -16,6 +16,7 @@
 #include "UICommon/GameFile.h"
 #include "jni/AndroidCommon/AndroidCommon.h"
 #include "jni/AndroidCommon/IDCache.h"
+#include "jni/GameList/TitleDatabase.h"
 
 static std::shared_ptr<const UICommon::GameFile>* GetPointer(JNIEnv* env, jobject obj)
 {
@@ -52,11 +53,19 @@ JNIEXPORT jint JNICALL Java_org_dolphinemu_dolphinemu_model_GameFile_getPlatform
   return static_cast<jint>(GetRef(env, obj)->GetPlatform());
 }
 
-JNIEXPORT jstring JNICALL Java_org_dolphinemu_dolphinemu_model_GameFile_getTitle(JNIEnv* env,
-                                                                                 jobject obj)
+JNIEXPORT jstring JNICALL Java_org_dolphinemu_dolphinemu_model_GameFile_getTitle(
+    JNIEnv* env, jobject obj, jobject j_title_database)
 {
-  return ToJString(env,
-                   GetRef(env, obj)->GetName(UICommon::GameFile::Variant::LongAndPossiblyCustom));
+  const Core::TitleDatabase* title_database = TitleDatabaseFromJava(env, j_title_database);
+  if (title_database)
+  {
+    return ToJString(env, GetRef(env, obj)->GetName(*title_database));
+  }
+  else
+  {
+    return ToJString(env,
+                     GetRef(env, obj)->GetName(UICommon::GameFile::Variant::LongAndPossiblyCustom));
+  }
 }
 
 JNIEXPORT jstring JNICALL Java_org_dolphinemu_dolphinemu_model_GameFile_getDescription(JNIEnv* env,
diff --git a/Source/Android/jni/GameList/TitleDatabase.cpp b/Source/Android/jni/GameList/TitleDatabase.cpp
new file mode 100644
index 0000000000..c4aca48a25
--- /dev/null
+++ b/Source/Android/jni/GameList/TitleDatabase.cpp
@@ -0,0 +1,37 @@
+// Copyright 2026 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "jni/GameList/TitleDatabase.h"
+
+#include <jni.h>
+
+#include "Core/TitleDatabase.h"
+#include "jni/AndroidCommon/IDCache.h"
+
+Core::TitleDatabase* TitleDatabaseFromJava(JNIEnv* env, jobject obj)
+{
+  return reinterpret_cast<Core::TitleDatabase*>(
+      env->GetLongField(obj, IDCache::GetTitleDatabasePointer()));
+}
+extern "C" {
+
+JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_model_TitleDatabase_finalize(JNIEnv* env,
+                                                                                   jobject obj)
+{
+  delete TitleDatabaseFromJava(env, obj);
+}
+
+JNIEXPORT jboolean JNICALL Java_org_dolphinemu_dolphinemu_model_TitleDatabase_userTitleMapEquals(
+    JNIEnv* env, jobject obj, jobject other)
+{
+  return other != nullptr && TitleDatabaseFromJava(env, obj)->GetUserTitleMap() ==
+                                 TitleDatabaseFromJava(env, other)->GetUserTitleMap();
+}
+
+JNIEXPORT jobject JNICALL Java_org_dolphinemu_dolphinemu_model_TitleDatabase_load(JNIEnv* env,
+                                                                                  jclass)
+{
+  return env->NewObject(IDCache::GetTitleDatabaseClass(), IDCache::GetTitleDatabaseConstructor(),
+                        reinterpret_cast<jlong>(new Core::TitleDatabase));
+}
+}
diff --git a/Source/Android/jni/GameList/TitleDatabase.h b/Source/Android/jni/GameList/TitleDatabase.h
new file mode 100644
index 0000000000..fcf8f9bf32
--- /dev/null
+++ b/Source/Android/jni/GameList/TitleDatabase.h
@@ -0,0 +1,13 @@
+// Copyright 2026 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <jni.h>
+
+namespace Core
+{
+class TitleDatabase;
+}
+
+Core::TitleDatabase* TitleDatabaseFromJava(JNIEnv* env, jobject obj);