opt.: bio auth setting

lib/view/page/setting/platform_pub.dart

@@ -0,0 +1,52 @@
+import 'package:flutter/material.dart';
+import 'package:toolbox/core/extension/context/locale.dart';
+import 'package:toolbox/core/utils/platform/auth.dart';
+import 'package:toolbox/data/res/store.dart';
+import 'package:toolbox/data/res/ui.dart';
+import 'package:toolbox/view/widget/future_widget.dart';
+import 'package:toolbox/view/widget/store_switch.dart';
+
+class PlatformPublicSettings {
+  static Widget buildBioAuth() {
+    return FutureWidget<bool>(
+      future: BioAuth.isAvail,
+      loading: ListTile(
+        title: Text(l10n.bioAuth),
+        subtitle: Text(l10n.serverTabLoading, style: UIs.textGrey),
+      ),
+      error: (e, __) => ListTile(
+        title: Text(l10n.bioAuth),
+        subtitle: Text('${l10n.failed}: $e', style: UIs.textGrey),
+      ),
+      success: (can) {
+        return can
+            ? ListTile(
+                title: Text(l10n.bioAuth),
+                subtitle: can
+                    ? null
+                    : const Text('Error: Bio auth is not available',
+                        style: UIs.textGrey),
+                trailing: can
+                    ? StoreSwitch(
+                        prop: Stores.setting.useBioAuth,
+                        func: (val) async {
+                          if (val) {
+                            Stores.setting.useBioAuth.put(false);
+                            return;
+                          }
+                          // Only auth when turn off (val == false)
+                          final result = await BioAuth.auth(l10n.authRequired);
+                          // If failed, turn on again
+                          if (result != AuthResult.success) {
+                            Stores.setting.useBioAuth.put(true);
+                          }
+                        },
+                      )
+                    : null,
+              )
+            : UIs.placeholder;
+      },
+      noData: UIs.placeholder,
+    );
+  }
+}