Added Biometric Authentication Playground

Android/app/src/main/AndroidManifest.xml

@@ -20,7 +20,7 @@
     <!-- <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> -->
 
     <uses-permission android:name="android.permission.VIBRATE"/>
-    
+
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.RECORD_AUDIO"/>
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
@@ -34,6 +34,9 @@
     <uses-permission android:name="android.permission.READ_CALENDAR" />
     <uses-permission android:name="android.permission.WRITE_CALENDAR" />
 
+    <!-- permissions needed for the Biometric Authentication playground (SkipKit) -->
+    <uses-permission android:name="android.permission.USE_BIOMETRIC" />
+
     <queries>
         <intent>
             <action android:name="android.support.customtabs.action.CustomTabsService" />

Sources/Showcase/BiometricAuthenticationPlayground.swift

@@ -0,0 +1,87 @@
+// Copyright 2023–2026 Skip
+import SwiftUI
+import SkipKit
+
+/// This component uses the `SkipKit` module from https://source.skip.tools/skip-kit
+struct BiometricAuthenticationPlayground: View {
+    @State var authenticationType = BiometricAuthentication.authenticationType
+    @State var result = "Not authenticated"
+    @State var authenticationAttempt = 0
+
+    private var canAuthenticate: Bool { BiometricAuthentication.canAuthenticate }
+
+    private var resultColor: Color {
+        switch self.result {
+        case "Authenticated": .green
+        case "Cancelled": .orange
+        case "Failed", "Unavailable": .red
+        default:
+            .secondary
+        }
+    }
+
+    var body: some View {
+        List {
+            Section("Availability") {
+                LabeledContent("Type",
+                    value: {
+                        switch self.authenticationType {
+                        case .fingerprint: "Fingerprint"
+                        case .facialRecognition: "Facial Recognition"
+                        case .unspecified: "Unspecified Biometric"
+                        case .none: "None"
+                        }
+                    }()
+                )
+                LabeledContent("Can Authenticate") {
+                    Text(self.canAuthenticate ? "Yes" : "No")
+                        .foregroundStyle(self.canAuthenticate ? Color.green : Color.red)
+                }
+            }
+
+            if self.canAuthenticate {
+                Section("Authentication") {
+                    Button("Authenticate") { self.authenticate() }
+
+                    Text(self.result)
+                        .foregroundStyle(self.resultColor)
+                }
+            }
+        }
+        .onAppear { self.refresh() }
+        .onDisappear { self.cancelAuthentication() }
+        .toolbar {
+            PlaygroundSourceLink(file: "BiometricAuthenticationPlayground.swift")
+        }
+    }
+
+    private func authenticate() {
+        self.authenticationAttempt += 1
+        let authenticationAttempt = self.authenticationAttempt
+        self.result = "Authenticating..."
+
+        BiometricAuthentication.authenticate(
+            localizedReason: "Authenticate with biometrics"
+        ) { authenticationResult in
+            guard authenticationAttempt == self.authenticationAttempt else {
+                return
+            }
+
+            self.result = switch authenticationResult {
+            case .success: "Authenticated"
+            case .cancelled: "Cancelled"
+            case .failed: "Failed"
+            case .unavailable: "Unavailable"
+            }
+            self.refresh()
+        }
+    }
+
+    private func refresh() {
+        self.authenticationType = BiometricAuthentication.authenticationType
+    }
+
+    private func cancelAuthentication() {
+        self.authenticationAttempt += 1
+    }
+}

Sources/Showcase/PlaygroundListView.swift

@@ -8,6 +8,7 @@ enum PlaygroundType: CaseIterable, View {
     case animation
     case audio
     case background
+    case biometricAuthentication
     case blendMode
     case blur
     case border
@@ -113,6 +114,8 @@ enum PlaygroundType: CaseIterable, View {
             return LocalizedStringResource("Audio", comment: "Title of Audio playground")
         case .background:
             return LocalizedStringResource("Background", comment: "Title of Background playground")
+        case .biometricAuthentication:
+            return LocalizedStringResource("Biometric Authentication", comment: "Title of Biometric Authentication playground")
         case .blendMode:
             return LocalizedStringResource("BlendMode", comment: "Title of BlendMode playground")
         case .blur:
@@ -316,6 +319,8 @@ enum PlaygroundType: CaseIterable, View {
             #endif
         case .background:
             BackgroundPlayground()
+        case .biometricAuthentication:
+            BiometricAuthenticationPlayground()
         case .blendMode:
             BlendModePlayground()
         case .blur:

Sources/Showcase/Resources/Localizable.xcstrings

@@ -1002,12 +1002,30 @@
     },
     "AsyncImage" : {
 
+    },
+    "Authenticate" : {
+
+    },
+    "Authenticate with biometrics" : {
+
+    },
+    "Authenticated" : {
+
+    },
+    "Authenticating..." : {
+
+    },
+    "Authentication" : {
+
     },
     "Audio" : {
       "comment" : "Title of Audio playground"
     },
     "AudioPlayground is Lite-only until ported to SkipAV" : {
 
+    },
+    "Availability" : {
+
     },
     "B" : {
 
@@ -1077,6 +1095,9 @@
     },
     "Binding View" : {
 
+    },
+    "Biometric Authentication" : {
+      "comment" : "Title of Biometric Authentication playground"
     },
     "BipBop" : {
 
@@ -1182,6 +1203,12 @@
     },
     "Cancel" : {
 
+    },
+    "Cancelled" : {
+
+    },
+    "Can Authenticate" : {
+
     },
     "Capsule" : {
 
@@ -1673,6 +1700,12 @@
     },
     "F2" : {
 
+    },
+    "Facial Recognition" : {
+
+    },
+    "Failed" : {
+
     },
     "Favorite" : {
 
@@ -1700,6 +1733,9 @@
     },
     "fill(.red)\n  .stroke(.green, lineWidth: 10)" : {
 
+    },
+    "Fingerprint" : {
+
     },
     "First" : {
 
@@ -2647,6 +2683,9 @@
     },
     "NO" : {
 
+    },
+    "No" : {
+
     },
     "No badge (count 0)" : {
 
@@ -2665,6 +2704,12 @@
     },
     "Normal" : {
 
+    },
+    "None" : {
+
+    },
+    "Not authenticated" : {
+
     },
     "Not supported on macOS" : {
 
@@ -4225,6 +4270,9 @@
     },
     "Title Only" : {
 
+    },
+    "Type" : {
+
     },
     "To:" : {
 
@@ -4306,6 +4354,9 @@
     },
     "Unavailable" : {
 
+    },
+    "Unspecified Biometric" : {
+
     },
     "Underline" : {
 
@@ -4719,6 +4770,9 @@
     },
     "Yellow" : {
 
+    },
+    "Yes" : {
+
     },
     "YES" : {
 
@@ -4734,4 +4788,4 @@
     }
   },
   "version" : "1.0"
-}
+}