✨ 添加组件 AnnotatedRegion、CheckedModeBanner、CupertinoTabView、CupertinoTextSelectionToolbar、DefaultTabController、DraggableScrollableActuator、DraggableScrollableSheet、DrawerController、GlowingOverscrollIndicator、 MergeableMaterial、SizeChangedLayoutNotifier、SliverLayoutBuilder、TableCell

2020-11-14 10:30:26 +08:00
parent a0ee4b9759
commit 8ecd3042b9
20 changed files with 1091 additions and 0 deletions
--- a/lib/views/widgets/SingleChildRenderObjectWidget/SizeChangedLayoutNotifier/node1_base.dart
+++ b/lib/views/widgets/SingleChildRenderObjectWidget/SizeChangedLayoutNotifier/node1_base.dart
@@ -0,0 +1,71 @@
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+/// create by 张风捷特烈 on 2020/9/21
+/// contact me by email 1981462002@qq.com
+/// 说明: 294 SizeChangedLayoutNotifier 尺寸变化通告  使用 SizeChangedLayoutNotifier 可以在子组件布局区域发生变化后，发出通知。使用NotificationListener可以进行监听。
+//    {
+//      "widgetId": 294,
+//      "name": '基本使用',
+//      "priority": 1,
+//      "subtitle":
+//          "【child】 : 组件   【Widget】",
+//    }
+
+class SizeChangedLayoutNotifierDemo extends StatefulWidget {
+  @override
+  _SizeChangedLayoutNotifierDemoState createState() => _SizeChangedLayoutNotifierDemoState();
+}
+
+class _SizeChangedLayoutNotifierDemoState extends State<SizeChangedLayoutNotifierDemo> {
+  @override
+  Widget build(BuildContext context) {
+    return NotificationListener<SizeChangedLayoutNotification>(
+      onNotification: _onNotification,
+      child: ChangeableBox(),
+    );
+  }
+
+  bool _onNotification(SizeChangedLayoutNotification notification) {
+    print('---------SizeChangedLayoutNotification------');
+    return false;
+  }
+}
+
+class ChangeableBox extends StatefulWidget {
+  @override
+  _ChangeableBoxState createState() => _ChangeableBoxState();
+}
+
+class _ChangeableBoxState extends State<ChangeableBox> {
+  double width = 40;
+
+  @override
+  Widget build(BuildContext context) {
+    return Column(
+      mainAxisSize: MainAxisSize.min,
+      children: [
+        SizeChangedLayoutNotifier(
+          child: Container(
+            width: width,
+            height: 100,
+            color: Colors.blue,
+          ),
+        ),
+        Slider(
+          max: 200,
+          min: 20,
+          divisions: 10,
+          value: width,
+          onChanged: _changeWidth,
+        )
+      ],
+    );
+  }
+
+  void _changeWidth(double value) {
+    setState(() {
+      width = value;
+    });
+  }
+}