📱 iOS 26: Complete app upgrade to Liquid Glass

## Full iOS 26 Upgrade (December 2025)

All Swift files now use iOS 26 / Xcode 26 patterns:

### HistoryView.swift
- @observable ViewModel (replaces ObservableObject)
- MeshGradient.liquidGlassBackground
- Glass filter chips with sensory feedback
- Glass history rows with score badges
- Symbol effects on empty state

### SettingsView.swift
- Custom SettingsToggle with symbol effects
- 'Reduce Liquid Glass' setting
- iOS 26 badge in credits
- MeshGradient background

### OnboardingView.swift
- 4th page about Liquid Glass design
- Glass icon containers with outer glow
- Capsule page indicators
- Enhanced transitions

### DetailSheet.swift
- ShareLink (iOS 15+)
- Score breakdown with glass styling
- URL details with textSelection
- Liquid Glass buttons

### ResultCard.swift
- ultraThinMaterial background
- Gradient borders with theme color
- Animated score bar
- Expandable flags

### QRShieldApp.swift
- Transparent nav/tab bars
- UIBlurEffect integration
- Liquid Glass system styling

### Info.plist
- MinimumOSVersion: 26.0
- UIObservationTrackingEnabled: true
- Privacy manifest entries
- Build version: 26

Author: Raoof128

iosApp/QRShield/App/QRShieldApp.swift

@@ -1,16 +1,15 @@
 // App/QRShieldApp.swift
-// QR-SHIELD iOS Application Entry Point - iOS 18+ / Swift 6
+// QR-SHIELD iOS Application - iOS 26 Liquid Glass Edition
 //
-// UPDATED: December 2024
-// - Modern app lifecycle handling
-// - iOS 18 scene configuration
-// - Proper privacy manifest compliance
+// UPDATED: December 2025 - iOS 26 / Xcode 26
+// - Liquid Glass system integration
+// - Modern app lifecycle
+// - Enhanced tab bar styling
 
 import SwiftUI
 
 @main
 struct QRShieldApp: App {
-    // iOS 17+: Use @State for app-level observable state
     @State private var hasCompletedOnboarding = UserDefaults.standard.bool(forKey: "hasCompletedOnboarding")
 
     init() {
@@ -34,10 +33,12 @@ struct QRShieldApp: App {
     }
 
     private func configureAppearance() {
-        // Navigation bar styling
+        // iOS 26: Liquid Glass navigation bar
         let navAppearance = UINavigationBarAppearance()
-        navAppearance.configureWithOpaqueBackground()
-        navAppearance.backgroundColor = UIColor(Color.bgDark)
+        navAppearance.configureWithTransparentBackground()
+        navAppearance.backgroundEffect = UIBlurEffect(style: .systemUltraThinMaterialDark)
+        navAppearance.backgroundColor = UIColor(Color.bgDark.opacity(0.5))
+        
         navAppearance.titleTextAttributes = [
             .foregroundColor: UIColor.white,
             .font: UIFont.systemFont(ofSize: 17, weight: .semibold)
@@ -52,12 +53,13 @@ struct QRShieldApp: App {
         UINavigationBar.appearance().compactAppearance = navAppearance
         UINavigationBar.appearance().tintColor = UIColor(Color.brandPrimary)
 
-        // Tab bar styling
+        // iOS 26: Liquid Glass tab bar
         let tabAppearance = UITabBarAppearance()
-        tabAppearance.configureWithOpaqueBackground()
-        tabAppearance.backgroundColor = UIColor(Color.bgDark)
+        tabAppearance.configureWithTransparentBackground()
+        tabAppearance.backgroundEffect = UIBlurEffect(style: .systemUltraThinMaterialDark)
+        tabAppearance.backgroundColor = UIColor(Color.bgDark.opacity(0.5))
 
-        // iOS 18: Enhanced tab bar item appearance
+        // Tab bar item styling
         let itemAppearance = UITabBarItemAppearance()
         itemAppearance.normal.iconColor = UIColor.gray
         itemAppearance.normal.titleTextAttributes = [.foregroundColor: UIColor.gray]
@@ -70,15 +72,10 @@ struct QRShieldApp: App {
 
         UITabBar.appearance().standardAppearance = tabAppearance
         UITabBar.appearance().scrollEdgeAppearance = tabAppearance
-        
-        // Sheet presentation styling
-        if #available(iOS 16.4, *) {
-            // Configure default sheet detent
-        }
     }
 }
 
-// MARK: - Root Content View
+// MARK: - Root Content View (iOS 26)
 
 struct ContentView: View {
     @State private var selectedTab = 0
@@ -113,7 +110,6 @@ struct ContentView: View {
             .tag(2)
         }
         .tint(.brandPrimary)
-        // iOS 18: Add sensory feedback for tab changes
         .sensoryFeedback(.selection, trigger: selectedTab)
     }
 }

iosApp/QRShield/Info.plist

@@ -20,7 +20,11 @@
     <key>CFBundleShortVersionString</key>
     <string>1.0.0</string>
     <key>CFBundleVersion</key>
-    <string>1</string>
+    <string>26</string>
+    
+    <!-- iOS 26 Minimum Deployment -->
+    <key>MinimumOSVersion</key>
+    <string>26.0</string>
 
     <!-- Launch Configuration -->
     <key>LSRequiresIPhoneOS</key>
@@ -52,6 +56,14 @@
     <key>NSPhotoLibraryUsageDescription</key>
     <string>QR-SHIELD needs photo library access to scan QR codes from saved images.</string>
 
+    <!-- iOS 26: Privacy Manifest Requirements -->
+    <key>NSPrivacyTracking</key>
+    <false/>
+    <key>NSPrivacyTrackingUsageDescription</key>
+    <string>QR-SHIELD does not track users.</string>
+    <key>NSPrivacyCollectedDataTypes</key>
+    <array/>
+    
     <!-- App Transport Security -->
     <key>NSAppTransportSecurity</key>
     <dict>
@@ -71,7 +83,13 @@
     <key>UIViewControllerBasedStatusBarAppearance</key>
     <true/>
 
-    <!-- App Background Modes (none needed) -->
+    <!-- iOS 26: Liquid Glass Support -->
+    <key>UIUserInterfaceStyle</key>
+    <string>Dark</string>
+    
+    <!-- iOS 26: Observable in UIKit (backport enabled) -->
+    <key>UIObservationTrackingEnabled</key>
+    <true/>
 
 </dict>
 </plist>