Performance Optimization and Memory Management

app/build.gradle.kts

@@ -7,6 +7,7 @@ plugins {
     id("org.jetbrains.kotlin.android")
     id("org.jetbrains.kotlin.plugin.compose")
     id("com.google.gms.google-services")
+    id("com.google.firebase.crashlytics")
     id("com.diffplug.spotless") version "7.2.1"
     id("com.google.android.libraries.mapsplatform.secrets-gradle-plugin")
     id("com.getkeepsafe.dexcount") // For APK analysis
@@ -87,6 +88,11 @@ android {
             // Disable Crashlytics in debug builds 
             buildConfigField("boolean", "ENABLE_CRASHLYTICS", "false")
 
+            // Disable Crashlytics collection for debug builds
+            // configure<com.google.firebase.crashlytics.buildtools.gradle.CrashlyticsExtension> {
+            //     mappingFileUploadEnabled = false
+            // }
+
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
                 "proguard-rules.pro",
@@ -103,6 +109,11 @@ android {
             // Enable Crashlytics in release builds
             buildConfigField("boolean", "ENABLE_CRASHLYTICS", "true")
 
+            // Enable Crashlytics collection for release builds
+            // configure<com.google.firebase.crashlytics.buildtools.gradle.CrashlyticsExtension> {
+            //     mappingFileUploadEnabled = true
+            // }
+
             // ProGuard/R8 configuration with optimization
             proguardFiles(
                 getDefaultProguardFile("proguard-android-optimize.txt"),
@@ -312,6 +323,10 @@ dependencies {
     // Firebase App Check for security
     implementation("com.google.firebase:firebase-appcheck-playintegrity:17.1.1")
     implementation("com.google.firebase:firebase-appcheck-debug:17.1.1")
+
+    // Firebase Crashlytics for crash reporting (only in release builds)
+    implementation("com.google.firebase:firebase-crashlytics:19.0.3")
+    implementation("com.google.firebase:firebase-analytics:22.1.2")
 
     // --- Google Services ---
     implementation(libs.gms.play.services.auth)

app/src/main/java/com/example/partymaker/PartyApplication.java

@@ -21,6 +21,8 @@
 import com.google.firebase.appcheck.FirebaseAppCheck;
 import com.google.firebase.appcheck.playintegrity.PlayIntegrityAppCheckProviderFactory;
 import com.google.firebase.appcheck.debug.DebugAppCheckProviderFactory;
+import com.google.firebase.crashlytics.FirebaseCrashlytics;
+import com.example.partymaker.utils.media.ImageOptimizationManager;
 
 /** Application class for PartyMaker. Initializes repositories and other app-wide components. */
 public class PartyApplication extends Application {
@@ -48,6 +50,9 @@ public void onCreate() {
 
       // Initialize Firebase App Check for security
       initializeAppCheck();
+
+      // Initialize Crashlytics
+      initializeCrashlytics();
 
       // Initialize Firebase references
       DBRef.init();
@@ -93,6 +98,13 @@ public void onCreate() {
     // Log memory info
     Log.d(TAG, "Initial memory usage: " + MemoryManager.getDetailedMemoryInfo());
 
+    // Setup global exception handler
+    setupGlobalExceptionHandler();
+
+    // Optimize image loading configuration
+    ImageOptimizationManager.optimizeGlideConfiguration(this);
+    Log.d(TAG, "Image loading optimized");
+
     // End application initialization timing
     PerformanceMonitor.trackMemoryUsage("Application.onCreate.end");
     PerformanceMonitor.endTiming("Application.onCreate");
@@ -173,6 +185,91 @@ private void initializeAppCheck() {
     }
   }
 
+  /**
+   * Initializes Firebase Crashlytics for crash reporting.
+   */
+  private void initializeCrashlytics() {
+    try {
+      FirebaseCrashlytics crashlytics = FirebaseCrashlytics.getInstance();
+
+      // Enable/disable based on build type
+      crashlytics.setCrashlyticsCollectionEnabled(BuildConfig.ENABLE_CRASHLYTICS);
+
+      if (BuildConfig.ENABLE_CRASHLYTICS) {
+        Log.d(TAG, "Crashlytics enabled for crash reporting");
+
+        // Set user properties
+        crashlytics.setUserId("user_" + System.currentTimeMillis());
+        crashlytics.setCustomKey("app_version", BuildConfig.VERSION_NAME);
+        crashlytics.setCustomKey("debug_mode", BuildConfig.DEBUG);
+
+        // Test log (only in debug)
+        if (BuildConfig.DEBUG) {
+          crashlytics.log("PartyApplication initialized successfully");
+        }
+      } else {
+        Log.d(TAG, "Crashlytics disabled for debug builds");
+      }
+
+    } catch (Exception e) {
+      Log.e(TAG, "Failed to initialize Crashlytics", e);
+    }
+  }
+
+  /**
+   * Sets up global exception handler for uncaught exceptions.
+   */
+  private void setupGlobalExceptionHandler() {
+    // Store the original handler before replacing it
+    final Thread.UncaughtExceptionHandler originalHandler = Thread.getDefaultUncaughtExceptionHandler();
+
+    Thread.setDefaultUncaughtExceptionHandler(new Thread.UncaughtExceptionHandler() {
+      @Override
+      public void uncaughtException(@NonNull Thread thread, @NonNull Throwable throwable) {
+        Log.e(TAG, "Uncaught exception in thread: " + thread.getName(), throwable);
+
+        // Log crash information
+        Log.e(TAG, "Crash details - Message: " + throwable.getMessage());
+        Log.e(TAG, "Crash details - Cause: " + (throwable.getCause() != null ? throwable.getCause().toString() : "None"));
+
+        // Send to Crashlytics if enabled
+        try {
+          if (BuildConfig.ENABLE_CRASHLYTICS) {
+            FirebaseCrashlytics crashlytics = FirebaseCrashlytics.getInstance();
+            crashlytics.recordException(throwable);
+            crashlytics.log("Uncaught exception in thread: " + thread.getName());
+          }
+        } catch (Exception e) {
+          Log.e(TAG, "Failed to report crash to Crashlytics", e);
+        }
+
+        // In debug builds, show additional information
+        if (BuildConfig.DEBUG) {
+          Log.e(TAG, "Stack trace: ", throwable);
+          Log.e(TAG, "Thread state: " + thread.getState());
+          Log.e(TAG, "Memory info: " + MemoryManager.getDetailedMemoryInfo());
+        }
+
+        // Attempt graceful cleanup
+        try {
+          MemoryManager.getInstance().emergencyCleanup();
+        } catch (Exception e) {
+          Log.e(TAG, "Error during emergency cleanup", e);
+        }
+
+        // Call the original handler to terminate the app
+        if (originalHandler != null) {
+          originalHandler.uncaughtException(thread, throwable);
+        } else {
+          // Fallback termination
+          System.exit(1);
+        }
+      }
+    });
+
+    Log.d(TAG, "Global exception handler configured");
+  }
+
   /**
    * Sets up memory monitoring for debug builds.
    */
@@ -216,5 +313,7 @@ public void onLowMemory() {
   public void onTrimMemory(int level) {
     super.onTrimMemory(level);
     MemoryManager.getInstance().emergencyCleanup();
+    // Also trim image cache memory
+    ImageOptimizationManager.trimMemory(this, level);
   }
 }

app/src/main/java/com/example/partymaker/ui/adapters/GroupAdapter.java

@@ -52,6 +52,13 @@ public GroupAdapter(Context context, OnGroupClickListener listener) {
   @Override
   public GroupViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
     View view = LayoutInflater.from(context).inflate(R.layout.item_group, parent, false);
+    // Reduce overdraw by setting background only where needed
+    view.setWillNotDraw(false);
+    // Disable child clipping for better performance
+    if (view instanceof ViewGroup) {
+      ((ViewGroup) view).setClipChildren(false);
+      ((ViewGroup) view).setClipToPadding(false);
+    }
     return new GroupViewHolder(view);
   }
 
@@ -67,6 +74,28 @@ public void onBindViewHolder(@NonNull GroupViewHolder holder, int position) {
       // Items will appear immediately without animation interference
     }
   }
+
+  @Override
+  public void onBindViewHolder(@NonNull GroupViewHolder holder, int position, @NonNull java.util.List<Object> payloads) {
+    if (payloads.isEmpty()) {
+      // Full bind
+      onBindViewHolder(holder, position);
+    } else {
+      // Partial bind for better performance - only update what changed
+      Group group = getItem(position);
+      if (group != null) {
+        for (Object payload : payloads) {
+          if ("name".equals(payload)) {
+            holder.setGroupName(group);
+          } else if ("date".equals(payload)) {
+            holder.setGroupDate(group);
+          } else if ("image".equals(payload)) {
+            holder.loadGroupImage(group.getGroupKey());
+          }
+        }
+      }
+    }
+  }
 
   /**
    * Ensures view is in completely normal state to prevent spacing issues
@@ -135,6 +164,21 @@ class GroupViewHolder extends RecyclerView.ViewHolder {
       groupNameTextView = itemView.findViewById(R.id.tvGroupName);
       groupDateTextView = itemView.findViewById(R.id.tvGroupDate);
       groupImageView = itemView.findViewById(R.id.imgGroupPicture);
+
+      // Optimize text views to reduce GPU operations
+      if (groupNameTextView != null) {
+        groupNameTextView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+        groupNameTextView.setIncludeFontPadding(false);
+      }
+      if (groupDateTextView != null) {
+        groupDateTextView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+        groupDateTextView.setIncludeFontPadding(false);
+      }
+      // Image view uses software layer for static images
+      if (groupImageView != null) {
+        groupImageView.setLayerType(View.LAYER_TYPE_SOFTWARE, null);
+      }
+
       setupClickListeners();
     }
 

app/src/main/java/com/example/partymaker/ui/features/auth/LoginActivity.java

@@ -19,7 +19,7 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
+import com.example.partymaker.ui.base.BaseActivity;
 import androidx.lifecycle.ViewModelProvider;
 import com.example.partymaker.R;
 import com.example.partymaker.data.api.NetworkManager;
@@ -53,7 +53,7 @@
  * @version 2.0
  * @since 1.0
  */
-public class LoginActivity extends AppCompatActivity {
+public class LoginActivity extends BaseActivity {
 
   private static final class Config {
     static final String LOG_TAG = "LoginActivity";
@@ -612,4 +612,30 @@ void clearAnimations() {
       }
     }
   }
+
+  @Override
+  protected void clearActivityReferences() {
+    // Clear all UI references
+    // Clear UI references
+    emailEditText = null;
+    passwordEditText = null;
+    loginButton = null;
+    registerButton = null;
+    resetPasswordButton = null;
+    googleSignInButton = null;
+    progressBar = null;
+    rememberMeCheckbox = null;
+    aboutButton = null;
+    rootView = null;
+
+    // Clear ViewModels and other objects
+    authViewModel = null;
+    firebaseAuth = null;
+
+    // Clear animation manager
+    if (animationManager != null) {
+      animationManager.clearAnimations();
+      animationManager = null;
+    }
+  }
 }

app/src/main/java/com/example/partymaker/ui/features/auth/RegisterActivity.java

@@ -26,7 +26,7 @@
 import android.widget.TextView;
 import android.widget.Toast;
 import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
+import com.example.partymaker.ui.base.BaseActivity;
 import androidx.core.app.NotificationCompat;
 import androidx.core.content.ContextCompat;
 import androidx.lifecycle.ViewModelProvider;
@@ -48,7 +48,7 @@
  * Activity for user registration, including form validation, animations, and notifications. Handles
  * user input, password strength, and registration logic.
  */
-public class RegisterActivity extends AppCompatActivity {
+public class RegisterActivity extends BaseActivity {
   /** Notification channel ID. */
   private static final String CHANNEL_ID = "registration_channel";
 
@@ -839,4 +839,29 @@ private void sendSuccessNotification(String username) {
         (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
     notificationManager.notify(1, builder.build());
   }
+
+  @Override
+  protected void clearActivityReferences() {
+    // Clear UI references
+    tilEmail = null;
+    tilUsername = null;
+    tilPassword = null;
+    etEmail = null;
+    etUsername = null;
+    etPassword = null;
+    btnRegister = null;
+    btnPress = null;
+    imgRegister = null;
+    headerCard = null;
+    formCard = null;
+    celebrationLayout = null;
+    passwordStrengthBar = null;
+    passwordStrengthText = null;
+    formProgressText = null;
+    progressIndicator = null;
+    progressBar = null;
+
+    // Clear ViewModels
+    authViewModel = null;
+  }
 }

app/src/main/java/com/example/partymaker/ui/features/auth/ResetPasswordActivity.java

@@ -21,7 +21,7 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
+import com.example.partymaker.ui.base.BaseActivity;
 import androidx.lifecycle.ViewModelProvider;
 import com.example.partymaker.R;
 import com.example.partymaker.viewmodel.auth.ResetPasswordViewModel;
@@ -39,7 +39,7 @@
  * @version 2.0
  * @since 1.0
  */
-public class ResetPasswordActivity extends AppCompatActivity {
+public class ResetPasswordActivity extends BaseActivity {
 
   private static final class Config {
     static final String LOG_TAG = "ResetPasswordActivity";
@@ -261,6 +261,28 @@ private void cleanupResources() {
     resetPasswordViewModel = null;
   }
 
+  @Override
+  protected void clearActivityReferences() {
+    // Clear UI components
+    lightThemeButton = null;
+    darkThemeButton = null;
+    resetPasswordButton = null;
+    helpButton = null;
+    hideInstructionsButton = null;
+    emailInputField = null;
+    resetLayout = null;
+    forgotPasswordTextView = null;
+    helpTextView = null;
+    instructionsTextView = null;
+    hideInstructionsTextView = null;
+    cakeImageView = null;
+
+    // Clear dependencies and managers
+    resetPasswordViewModel = null;
+    themeManager = null;
+    emailValidator = null;
+  }
+
   // Inner Classes and Text Watcher
   private class EmailValidationTextWatcher implements TextWatcher {
     @Override