二次开发源码提交

2026-05-15 08:52:48 +08:00
parent 4131f7321a
commit eb35a1d067
191 changed files with 34566 additions and 0 deletions
@@ -0,0 +1,30 @@
+import 'package:flutter/material.dart';
+
+/// 桌面端内容宽度约束
+/// 屏幕宽度 >= 1000px 时，将子组件内容限制在 maxContentWidth 内居中显示
+class DesktopConstrained extends StatelessWidget {
+  final Widget child;
+  final double maxContentWidth;
+
+  const DesktopConstrained({
+    super.key,
+    required this.child,
+    this.maxContentWidth = 800,
+  });
+
+  static const double desktopBreakpoint = 1000;
+
+  @override
+  Widget build(BuildContext context) {
+    final screenWidth = MediaQuery.of(context).size.width;
+    if (screenWidth >= desktopBreakpoint) {
+      return Center(
+        child: ConstrainedBox(
+          constraints: BoxConstraints(maxWidth: maxContentWidth),
+          child: child,
+        ),
+      );
+    }
+    return child;
+  }
+}