Fix a type error in Slider (#23483)

Fixes https://github.com/flutter/flutter/issues/23340

Fix a type error in Slider (#23483)
Fixes https://github.com/flutter/flutter/issues/23340
711eb99b · Jason Simmons · GitHub · 549e8e07 · 711eb99b
Unverified Commit 711eb99b authored Oct 25, 2018 by Jason Simmons Committed by GitHub Oct 25, 2018
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slider.dart packages/flutter/lib/src/material/slider.dart +1 -1

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--- 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;