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lib/v12/pages/login/logout_button.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+import 'package:iroute/v12/app/authentication/auth_scope.dart';
+
+class LogoutButton extends StatelessWidget {
+  final VoidCallback onLogout;
+  const LogoutButton({super.key, required this.onLogout});
+
+  @override
+  Widget build(BuildContext context) {
+    AuthResult authResult = AuthScope.of(context);
+    VoidCallback? action = onLogout;
+    Widget child = const Icon(Icons.logout,size: 20,);
+    switch (authResult.status) {
+      case AuthStatus.none:
+      case AuthStatus.success:
+      case AuthStatus.failed:
+      case AuthStatus.waitingLogin:
+        break;
+      case AuthStatus.waitingLoginOut:
+        action = null;
+        child = CupertinoActivityIndicator(radius: 10,);
+    }
+
+    return  IconButton(
+      splashRadius: 20,
+      onPressed: action,
+      tooltip: '退出登录',
+      icon: child,
+    );
+  }
+}