Merge pull request #796 from abarth/fix_tests

Don't divide by zero

Merge pull request #796 from abarth/fix_tests
Don't divide by zero
42052027 · Adam Barth · c5cbd13e · 01a0ec90 · 42052027
隐藏空白更改
内联并排

Showing with 1 addition and 1 deletion

sky/packages/sky/lib/widgets/scrollable.dart sky/packages/sky/lib/widgets/scrollable.dart +1 -1

未找到文件。
--- a/sky/packages/sky/lib/widgets/scrollable.dart
+++ b/sky/packages/sky/lib/widgets/scrollable.dart
@@ -439,7 +439,7 @@ abstract class ScrollableWidgetList extends Scrollable {
    int itemShowCount = 0;
    Offset viewportOffset = Offset.zero;

-    if (_containerExtent != null && _containerExtent > 0.0) {
+    if (_containerExtent != null && _containerExtent > 0.0 && itemCount > 0) {
      if (paddedScrollOffset < scrollBehavior.minScrollOffset) {
        // Underscroll
        double visibleExtent = _containerExtent + paddedScrollOffset;