Catch dismissable while it's animating.

Fixes #173.

Catch dismissable while it's animating.
Fixes #173.
5d9d5217 · Ian Hickson · 4f672dc0 · 5d9d5217
Commit 5d9d5217 authored Dec 25, 2015 by Ian Hickson
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Showing with 7 additions and 4 deletions

dismissable.dart packages/flutter/lib/src/widgets/dismissable.dart +7 -4

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--- a/packages/flutter/lib/src/widgets/dismissable.dart
+++ b/packages/flutter/lib/src/widgets/dismissable.dart
@@ -139,12 +139,15 @@ class _DismissableState extends State<Dismissable> {
  }

  void _handleDragStart(_) {
-    if (_dismissPerformance.isAnimating)
-      return;
    setState(() {
      _dragUnderway = true;
-      _dragExtent = 0.0;
-      _dismissPerformance.progress = 0.0;
+      if (_dismissPerformance.isAnimating) {
+        _dragExtent = _dismissPerformance.progress * _size.width * _dragExtent.sign;
+        _dismissPerformance.stop();
+      } else {
+        _dragExtent = 0.0;
+        _dismissPerformance.progress = 0.0;
+      }
    });
  }