Fix a type error in Slider (#23483)

Fixes https://github.com/flutter/flutter/issues/23340
2018-10-25 09:29:37 -07:00
parent 549e8e07c6
commit 711eb99b06
1 changed files with 1 additions and 1 deletions
--- a/packages/flutter/lib/src/material/slider.dart
+++ b/packages/flutter/lib/src/material/slider.dart
@@ -622,7 +622,7 @@ class _RenderSlider extends RenderBox {
      final double distance = (_value - _state.positionController.value).abs();
      _state.positionController.duration = distance != 0.0
        ? _positionAnimationDuration * (1.0 / distance)
-        : 0.0;
+        : Duration.zero;
      _state.positionController.animateTo(convertedValue, curve: Curves.easeInOut);
    } else {
      _state.positionController.value = convertedValue;