From d15dce01b3d977a5b831c9f41e3b88eb8023ec84 Mon Sep 17 00:00:00 2001
From: Juan Alvarez <jlalvarez18@gmail.com>
Date: Fri, 14 Jul 2023 15:04:14 -0500
Subject: [PATCH] added default swipe curve parameter in constructor

---
 lib/src/animation/animation.dart |  3 ++-
 lib/src/swipable_stack.dart      | 10 ++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/src/animation/animation.dart b/lib/src/animation/animation.dart
index 8cf0211..3827a10 100644
--- a/lib/src/animation/animation.dart
+++ b/lib/src/animation/animation.dart
@@ -23,6 +23,7 @@ extension _AnimationControllerX on AnimationController {
   Animation<Offset> swipeAnimation({
     required Offset startPosition,
     required Offset endPosition,
+    required Curve curve,
   }) {
     return Tween<Offset>(
       begin: startPosition,
@@ -30,7 +31,7 @@ extension _AnimationControllerX on AnimationController {
     ).animate(
       CurvedAnimation(
         parent: this,
-        curve: const Cubic(0.7, 1, 0.73, 1),
+        curve: curve,
       ),
     );
   }
diff --git a/lib/src/swipable_stack.dart b/lib/src/swipable_stack.dart
index 33feb27..f0adc08 100644
--- a/lib/src/swipable_stack.dart
+++ b/lib/src/swipable_stack.dart
@@ -34,6 +34,7 @@ class SwipableStack extends StatefulWidget {
     this.allowVerticalSwipe = true,
     Curve? cancelAnimationCurve,
     Curve? rewindAnimationCurve,
+    Curve? swipeAnimationCurve,
     this.swipeAnchor,
     this.dragStartBehavior = DragStartBehavior.start,
     this.hitTestBehavior = HitTestBehavior.deferToChild,
@@ -44,6 +45,8 @@ class SwipableStack extends StatefulWidget {
             cancelAnimationCurve ?? _defaultCancelAnimationCurve,
         rewindAnimationCurve =
             rewindAnimationCurve ?? _defaultRewindAnimationCurve,
+        swipeAnimationCurve =
+            swipeAnimationCurve ?? _defaultSwipeAnimationCurve,
         assert(0 <= viewFraction && viewFraction <= 1),
         assert(0 <= horizontalSwipeThreshold && horizontalSwipeThreshold <= 1),
         assert(0 <= verticalSwipeThreshold && verticalSwipeThreshold <= 1),
@@ -108,6 +111,9 @@ class SwipableStack extends StatefulWidget {
   /// A curve to animate the card when rewinding the swipe.
   final Curve rewindAnimationCurve;
 
+  ///  default curve to animate the card when programatically swiping cards.
+  final Curve swipeAnimationCurve;
+
   /// The [DragStartBehavior] of the swipes.
   final DragStartBehavior dragStartBehavior;
 
@@ -134,6 +140,8 @@ class SwipableStack extends StatefulWidget {
 
   static const _defaultStackClipBehaviour = Clip.hardEdge;
 
+  static final _defaultSwipeAnimationCurve = Cubic(0.7, 1, 0.73, 1);
+
   static final _defaultCancelAnimationCurve = Sprung.custom(
     damping: 17,
     mass: 0.5,
@@ -669,6 +677,7 @@ class _SwipableStackState extends State<SwipableStack>
             context: context,
             swipeDirection: swipeDirection,
           ),
+      curve: widget.swipeAnimationCurve,
     );
 
     void animate() {
@@ -736,6 +745,7 @@ class _SwipableStackState extends State<SwipableStack>
         context: context,
         swipeDirection: swipeDirection,
       ),
+      curve: widget.swipeAnimationCurve,
     );
 
     void animate() {