feat: inline PDF viewer with pinch-to-zoom

Matthias Nott

4 days ago c9739ac4a22733d45167173446c1d3ce65a767eb

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import Flutter
import UIKit
import UserNotifications

@main
@objc class AppDelegate: FlutterAppDelegate, FlutterImplicitEngineDelegate {
  override func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    return super.application(application, didFinishLaunchingWithOptions: launchOptions)
  }

  func didInitializeImplicitFlutterEngine(_ engineBridge: FlutterImplicitEngineBridge) {
    GeneratedPluginRegistrant.register(with: engineBridge.pluginRegistry)
  }


  // Read badge count from Flutter's SharedPreferences (UserDefaults) and update icon
  private func updateBadgeFromPrefs() {
    // Flutter SharedPreferences stores ints with "flutter." prefix
    let prefs = UserDefaults.standard
    let count = prefs.integer(forKey: "flutter.badgeCount")
    UIApplication.shared.applicationIconBadgeNumber = count
  }

  // Don't touch badge on resume — APNs sets it, Flutter decrements it on session view

  // Badge handled by Flutter via platform channel on session switch and background

  // Forward APNs token registration to the push plugin
  override func application(
    _ application: UIApplication,
    didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data
  ) {
    super.application(application, didRegisterForRemoteNotificationsWithDeviceToken: deviceToken)
  }

  override func application(
    _ application: UIApplication,
    didFailToRegisterForRemoteNotificationsWithError error: Error
  ) {
    super.application(application, didFailToRegisterForRemoteNotificationsWithError: error)
  }

  // Suppress push notification display when app is in foreground —
  // the MQTT message handler shows it in-app instead
  override func userNotificationCenter(
    _ center: UNUserNotificationCenter,
    willPresent notification: UNNotification,
    withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void
  ) {
    // Don't show banner/sound/badge when app is active — MQTT delivers the message directly
    completionHandler([])
  }

  // Forward notification tap
  override func userNotificationCenter(
    _ center: UNUserNotificationCenter,
    didReceive response: UNNotificationResponse,
    withCompletionHandler completionHandler: @escaping () -> Void
  ) {
    super.userNotificationCenter(center, didReceive: response, withCompletionHandler: completionHandler)
  }
}