add the AbsorbPointer widget.

Author: nb312

lib/const/page_item_const.dart

@@ -267,4 +267,10 @@ const PAGE_ITEMS = [
     "img": PageImage.FLUTTER_OPEN,
     "click": PageName.INTER_DISMISSIBLE,
   },
+  {
+    "title": PageName.INTER_POINTER,
+    "img": PageImage.FLUTTER_OPEN,
+    "click": PageName.INTER_POINTER,
+  },
+
 ];

lib/const/page_name_const.dart

@@ -58,4 +58,6 @@ class PageName {
   static const INTER_DRAG = "Draggable";
   static const INTER_GESTURE = "Gesture";
   static const INTER_DISMISSIBLE = "Dismissible";
+  static const INTER_POINTER = "AbsorbPointer";
+  static const INTER_SCROLLABLE = "Scrollable";
 }

lib/main.dart

@@ -72,6 +72,7 @@ class FlutterOpenApp extends StatelessWidget {
         PageName.INTER_DRAG: (context) => DraggablePage(),
         PageName.INTER_GESTURE: (context) => GesturePage(),
         PageName.INTER_DISMISSIBLE: (context) => DismissiblePage(),
+        PageName.INTER_POINTER: (context) => PointerPage(),
       },
     );
   }

lib/page/interation/PointerPage.dart

@@ -0,0 +1,58 @@
+///
+/// Created by NieBin on 2019/6/13
+/// Github: https://github.com/nb312
+/// Email: niebin312@gmail.com
+///
+import "package:flutter/material.dart";
+import 'package:flutter_widgets/const/_const.dart';
+
+class PointerPage extends StatefulWidget {
+  @override
+  _PointerState createState() => _PointerState();
+}
+
+class _PointerState extends State<PointerPage> {
+  Widget _absorb() => Container(
+        constraints: BoxConstraints.expand(height: 100),
+        child: AbsorbPointer(
+          child: GestureDetector(
+            onTap: () {
+              print("You have touch me.");
+            },
+            child: Text(
+                "It can absorb the pointer touching when you click it. but you should set the parameter of the absorbing to the 'true'"),
+          ),
+          absorbing: true,
+        ),
+        color: RED_LIGHT,
+      );
+
+  Widget _ignore() => Container(
+        color: BLUE_LIGHT,
+        child: IgnorePointer(
+          child: GestureDetector(
+            onTap: () {
+              print("Hello world");
+            },
+            child: Text(
+                "IgnorePointer,you can change the paramter of the ignoring to see the effect."),
+          ),
+          ignoring: true,
+        ),
+      );
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(PageName.INTER_POINTER),
+      ),
+      body: Column(
+        children: <Widget>[
+          _absorb(),
+          _ignore(),
+        ],
+      ),
+    );
+  }
+}

lib/page/interation/ScrollablePage.dart

@@ -0,0 +1,37 @@
+///
+/// Created by NieBin on 2019/6/13
+/// Github: https://github.com/nb312
+/// Email: niebin312@gmail.com
+///
+import "package:flutter/material.dart";
+import 'package:flutter_widgets/const/_const.dart';
+
+class ScrollablePage extends StatefulWidget {
+  @override
+  _ScrollableState createState() => _ScrollableState();
+}
+
+class _ScrollableState extends State<ScrollablePage> {
+  Widget _scrollBuilder(BuildContext context, position) => Container(
+        child: Column(
+          children: _list(),
+        ),
+      );
+
+  List<Widget> _list() {
+    List<Widget> list = List();
+    for (int i = 0; i < 20; i++) {
+      list.add(Container(
+        constraints: BoxConstraints.expand(height: 100),
+        color: i % 2 == 0 ? RED_LIGHT : BLUE_LIGHT,
+      ));
+    }
+    return list;
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    //it scrollable failed, so if you want to scroll a view, you can consider to use the CustomScrollView
+    return Scrollable(viewportBuilder: _scrollBuilder);
+  }
+}

lib/page/interation/_interaction.dart

@@ -6,3 +6,5 @@
 export "DraggablePage.dart";
 export "GesturePage.dart";
 export "DismissiblePage.dart";
+export "PointerPage.dart";
+export "ScrollablePage.dart";