Merge pull request #41 from FlutterOpen/dev

add the GestureDetector, Dismissible widget.

Author: nb312

lib/const/page_item_const.dart

@@ -257,4 +257,14 @@ const PAGE_ITEMS = [
     "img": PageImage.FLUTTER_OPEN,
     "click": PageName.INTER_DRAG,
   },
+  {
+    "title": PageName.INTER_GESTURE,
+    "img": PageImage.FLUTTER_OPEN,
+    "click": PageName.INTER_GESTURE,
+  },
+  {
+    "title": PageName.INTER_DISMISSIBLE,
+    "img": PageImage.FLUTTER_OPEN,
+    "click": PageName.INTER_DISMISSIBLE,
+  },
 ];

lib/const/page_name_const.dart

@@ -56,4 +56,6 @@ class PageName {
   static const ANIM_PYH_MODEL = "PyhModel";
   static const ANIM_OPACITY = "OpacityPage";
   static const INTER_DRAG = "Draggable";
+  static const INTER_GESTURE = "Gesture";
+  static const INTER_DISMISSIBLE = "Dismissible";
 }

lib/main.dart

@@ -70,6 +70,8 @@ class FlutterOpenApp extends StatelessWidget {
         PageName.ANIM_PYH_MODEL: (context) => PyhModelPage(),
         PageName.ANIM_OPACITY: (context) => AnimOpacityPage(),
         PageName.INTER_DRAG: (context) => DraggablePage(),
+        PageName.INTER_GESTURE: (context) => GesturePage(),
+        PageName.INTER_DISMISSIBLE: (context) => DismissiblePage(),
       },
     );
   }

lib/page/interation/DismissiblePage.dart

@@ -0,0 +1,50 @@
+///
+/// Created by NieBin on 2019/6/12
+/// Github: https://github.com/nb312
+/// Email: niebin312@gmail.com
+///
+import "package:flutter/material.dart";
+import "package:flutter_widgets/const/_const.dart";
+
+class DismissiblePage extends StatefulWidget {
+  @override
+  _DismissibleState createState() => _DismissibleState();
+}
+
+class _DismissibleState extends State<DismissiblePage> {
+  var _key = GlobalKey();
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(PageName.INTER_DISMISSIBLE),
+      ),
+      body: Dismissible(
+          key: _key,
+          child: Container(
+            constraints: BoxConstraints.expand(height: 100),
+            alignment: Alignment.center,
+            child: Text(
+              "Hello",
+              style: TextStyle(color: TEXT_BLACK, fontSize: 20),
+            ),
+            color: BLUE,
+          ),
+          background: Container(
+            color: RED_LIGHT,
+            constraints: BoxConstraints.expand(height: 100, width: 40),
+            alignment: Alignment.center,
+            child: Text(
+              "Remove",
+              style: TextStyle(color: TEXT_BLACK_LIGHT, fontSize: 10),
+            ),
+          ),
+          direction: DismissDirection.startToEnd,
+          onDismissed: (direction) {
+            print("Dissmiss");
+            _key.currentState.dispose();
+          }),
+    );
+  }
+}

lib/page/interation/GesturePage.dart

@@ -0,0 +1,38 @@
+///
+/// Created by NieBin on 2019/6/12
+/// Github: https://github.com/nb312
+/// Email: niebin312@gmail.com
+
+import "package:flutter/material.dart";
+import "package:flutter_widgets/const/_const.dart";
+
+class GesturePage extends StatefulWidget {
+  @override
+  _GestureState createState() => _GestureState();
+}
+
+class _GestureState extends State<GesturePage> {
+  Widget _gesture(context) => GestureDetector(
+        child: Text("You can tab me then look the log."),
+        onTap: () {
+          print("Hello world");
+          Scaffold.of(context).showSnackBar(
+            SnackBar(
+              content: Text("You have click me."),
+            ),
+          );
+        },
+      );
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: Text(PageName.INTER_GESTURE),
+      ),
+      body: Builder(
+        builder: (context) => _gesture(context),
+      ),
+    );
+  }
+}

lib/page/interation/_interaction.dart

@@ -3,4 +3,6 @@
 /// Github: https://github.com/nb312
 /// Email: niebin312@gmail.com
 ///
-export "DraggablePage.dart";
+export "DraggablePage.dart";
+export "GesturePage.dart";
+export "DismissiblePage.dart";