Fixes initialization issue

Author: letsar

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.0.0-dev.9
+### Fixed
+* Fixes an issue where we click on the Slidable instead of dragging it (https://github.com/letsar/flutter_slidable/pull/235).
+
 ## 1.0.0-dev.8
 ### Fixed
 * Fixes an issue where the Dismissible animation stopped in middle when the gesture was too fast.

example/pubspec.lock

@@ -68,7 +68,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.0.0-dev.8"
+    version: "1.0.0-dev.9"
   flutter_test:
     dependency: "direct dev"
     description: flutter

lib/src/gesture_detector.dart

@@ -76,6 +76,7 @@ class _SlidableGestureDetectorState extends State<SlidableGestureDetector> {
 
   void handleDragStart(DragStartDetails details) {
     startPosition = details.localPosition;
+    lastPosition = startPosition;
     dragExtent = dragExtent.sign *
         overallDragAxisExtent *
         widget.controller.ratio *

pubspec.yaml

@@ -1,6 +1,6 @@
 name: flutter_slidable
 description: A Flutter implementation of slidable list item with directional slide actions that can be dismissed.
-version: 1.0.0-dev.8
+version: 1.0.0-dev.9
 homepage: https://github.com/letsar/flutter_slidable
 
 environment: