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Declare NavigationRailDestination.label as non-nullable (#77427)

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Jason Simmons 2021-03-08 12:54:03 -08:00 committed by GitHub
parent fd890292c5
commit 01776a3e5f
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1 changed files with 5 additions and 4 deletions
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9
packages/flutter/lib/src/material/navigation_rail.dart
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@ -490,7 +490,7 @@ class _NavigationRailState extends State<NavigationRail> with TickerProviderStat
extendedTransitionAnimation: _extendedAnimation,
selected: widget.selectedIndex == i,
icon: widget.selectedIndex == i ? widget.destinations[i].selectedIcon : widget.destinations[i].icon,
label: widget.destinations[i].label!,
label: widget.destinations[i].label,
destinationAnimation: _destinationAnimations[i],
labelType: labelType,
iconTheme: widget.selectedIndex == i ? selectedIconTheme : unselectedIconTheme,
@ -818,10 +818,11 @@ class NavigationRailDestination {
const NavigationRailDestination({
required this.icon,
Widget? selectedIcon,
this.label,
required this.label,
this.padding,
}) : selectedIcon = selectedIcon ?? icon,
assert(icon != null);
assert(icon != null),
assert(label != null);
/// The icon of the destination.
///
@ -856,7 +857,7 @@ class NavigationRailDestination {
/// [NavigationRail.labelType] is [NavigationRailLabelType.none], the label is
/// still used for semantics, and may still be used if
/// [NavigationRail.extended] is true.
final Widget? label;
final Widget label;
/// The amount of space to inset the destination item.
final EdgeInsetsGeometry? padding;