Require Face ID to open the app and to send

2026-09-27 23:35:26 +08:00
parent b989b0f791
commit 78e1cefad4
8 changed files with 172 additions and 7 deletions
@@ -0,0 +1,25 @@
+import Foundation
+import LocalAuthentication
+
+/// Face ID / Touch ID gating for the app lock and for sensitive actions.
+enum Biometrics {
+  static var isAvailable: Bool {
+    LAContext().canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: nil)
+  }
+
+  static var label: String {
+    let context = LAContext()
+    _ = context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: nil)
+    return context.biometryType == .faceID ? "Face ID" : "Touch ID"
+  }
+
+  /// Biometrics with the system passcode fallback (the alert offers "Use
+  /// Passcode" after a failed face scan).
+  static func authenticate(reason: String) async -> Bool {
+    guard isAvailable else { return false }
+    let context = LAContext()
+    context.localizedCancelTitle = "Cancel"
+    return (try? await context.evaluatePolicy(.deviceOwnerAuthenticationWithBiometrics,
+                                             localizedReason: reason)) ?? false
+  }
+}