路由生命周期状态

2023-12-07 08:10:09 +08:00
parent 25b3bc16b2
commit 34d8e6dd75
13 changed files with 797 additions and 16 deletions
--- a/lib/10/more_pop_icon.dart
+++ b/lib/10/more_pop_icon.dart
@@ -0,0 +1,58 @@
+import 'package:flutter/material.dart';
+
+enum MenuAction implements Comparable<MenuAction> {
+  setting(label: '应用设置', iconData: Icons.settings),
+  about(label: '关于应用', iconData: Icons.info),
+  help(label: '帮助中心', iconData: Icons.help);
+
+  final String label;
+  final IconData iconData;
+
+  const MenuAction({
+    required this.label,
+    required this.iconData,
+  });
+
+  @override
+  int compareTo(MenuAction other) => label.compareTo(other.label);
+
+  bool operator >(MenuAction other) {
+    return compareTo(other) > 0;
+  }
+}
+
+class MorePopIcon extends StatelessWidget {
+  final ValueChanged<MenuAction> onTapItem;
+  const MorePopIcon({super.key, required this.onTapItem});
+
+  @override
+  Widget build(BuildContext context) {
+    return PopupMenuButton<MenuAction>(
+      itemBuilder: _buildItem,
+      onSelected: onTapItem,
+      icon: const Icon(Icons.more_vert_outlined),
+      position: PopupMenuPosition.under,
+      shape: const RoundedRectangleBorder(
+        borderRadius: BorderRadius.all(Radius.circular(10)),
+      ),
+    );
+  }
+
+  List<PopupMenuEntry<MenuAction>> _buildItem(BuildContext context) {
+    return MenuAction.values
+        .map((MenuAction action) => PopupMenuItem<MenuAction>(
+              height: 35,
+              value: action,
+              child: Center(
+                  child: Wrap(
+                crossAxisAlignment: WrapCrossAlignment.center,
+                spacing: 6,
+                children: [
+                  Text(action.label),
+                  Icon(action.iconData, size: 18),
+                ],
+              )),
+            ))
+        .toList();
+  }
+}