更新页面

lib/component/tool/FrostedDialog.dart

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+import 'dart:ui';
+import 'package:flutter/material.dart';
+
+class FrostedDialog extends StatelessWidget {
+  final Widget child;
+  final double blurSigma;
+  final Color barrierColor;
+
+  const FrostedDialog({
+    super.key,
+    required this.child,
+    this.blurSigma = 5.0,
+    this.barrierColor = const Color.fromRGBO(0, 0, 0, 0.5),
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return Stack(
+      children: [
+        // 毛玻璃背景
+        BackdropFilter(
+          filter: ImageFilter.blur(sigmaX: blurSigma, sigmaY: blurSigma),
+          child: Container(
+            color: Colors.transparent,
+          ),
+        ),
+        Dialog(
+          shape: RoundedRectangleBorder(
+            borderRadius: BorderRadius.circular(20.0),
+          ),
+          backgroundColor: Colors.transparent, // 背景透明，由 child 自己决定
+          child: child,
+        ),
+      ],
+    );
+  }
+}