controller open to manage the state.

README.md

@@ -148,6 +148,34 @@ Animate the actions as if they were streched while the `Slidable` is moving:
 
 ![Stretch Motion][stretch_motion]
 
+### Controller
+
+You can use ```SlidableController``` to open or close the actions programmatically:
+
+```dart
+final controller = SlidableController();
+
+// ...
+
+Slidable(
+  controller: controller,
+  // ...
+);
+
+// ...
+
+// Open the actions
+void _handleOpen() {
+  controller.openEndActionPane();
+  // OR
+  //controller.openStartActionPane();
+}
+
+void _handleOpen() {
+  controller.close();
+}
+```
+
 ## FAQ
 
 You can read the FAQ here: https://github.com/letsar/flutter_slidable/wiki/FAQ

example/lib/main.dart

@@ -3,11 +3,18 @@ import 'package:flutter_slidable/flutter_slidable.dart';
 
 void main() => runApp(const MyApp());
 
-class MyApp extends StatelessWidget {
+class MyApp extends StatefulWidget {
   const MyApp({
     Key? key,
   }) : super(key: key);
 
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> with SingleTickerProviderStateMixin {
+  late final controller = SlidableController(this);
+
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
@@ -48,21 +55,21 @@ class MyApp extends StatelessWidget {
               ),
 
               // The end action pane is the one at the right or the bottom side.
-              endActionPane: const ActionPane(
-                motion: ScrollMotion(),
+              endActionPane:  ActionPane(
+                motion: const ScrollMotion(),
                 children: [
                   SlidableAction(
                     // An action can be bigger than the others.
                     flex: 2,
-                    onPressed: doNothing,
-                    backgroundColor: Color(0xFF7BC043),
+                    onPressed: (_) => controller.openEndActionPane(),
+                    backgroundColor: const Color(0xFF7BC043),
                     foregroundColor: Colors.white,
                     icon: Icons.archive,
                     label: 'Archive',
                   ),
                   SlidableAction(
-                    onPressed: doNothing,
-                    backgroundColor: Color(0xFF0392CF),
+                    onPressed: (_) => controller.close(),
+                    backgroundColor: const Color(0xFF0392CF),
                     foregroundColor: Colors.white,
                     icon: Icons.save,
                     label: 'Save',
@@ -75,6 +82,7 @@ class MyApp extends StatelessWidget {
               child: const ListTile(title: Text('Slide me')),
             ),
             Slidable(
+              controller: controller,
               // Specify a key if the Slidable is dismissible.
               key: const ValueKey(1),
 

lib/src/slidable.dart

@@ -19,6 +19,7 @@ class Slidable extends StatefulWidget {
   /// [useTextDirection] and [child] arguments must not be null.
   const Slidable({
     Key? key,
+    this.controller,
     this.groupTag,
     this.enabled = true,
     this.closeOnScroll = true,
@@ -30,6 +31,9 @@ class Slidable extends StatefulWidget {
     required this.child,
   }) : super(key: key);
 
+  /// The Slidable widget controller.
+  final SlidableController? controller;
+
   /// Whether this slidable is interactive.
   ///
   /// If false, the child will not slid to show actions.
@@ -134,7 +138,7 @@ class _SlidableState extends State<Slidable>
   @override
   void initState() {
     super.initState();
-    controller = SlidableController(this)
+    controller = (widget.controller ?? SlidableController(this))
       ..actionPaneType.addListener(handleActionPanelTypeChanged);
   }
 
@@ -149,14 +153,25 @@ class _SlidableState extends State<Slidable>
   @override
   void didUpdateWidget(covariant Slidable oldWidget) {
     super.didUpdateWidget(oldWidget);
+
+    if (oldWidget.controller != widget.controller) {
+      controller.actionPaneType.removeListener(handleActionPanelTypeChanged);
+
+      controller = (widget.controller ?? SlidableController(this))
+        ..actionPaneType.addListener(handleActionPanelTypeChanged);
+    }
+
     updateIsLeftToRight();
     updateController();
   }
 
   @override
   void dispose() {
     controller.actionPaneType.removeListener(handleActionPanelTypeChanged);
-    controller.dispose();
+
+    if (controller != widget.controller) {
+      controller.dispose();
+    }
     super.dispose();
   }
 
@@ -213,6 +228,7 @@ class _SlidableState extends State<Slidable>
   }
 
   ActionPane? get startActionPane => widget.startActionPane;
+
   ActionPane? get endActionPane => widget.endActionPane;
 
   Alignment get actionPaneAlignment {