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Unverified Commit c14ab91f authored by Michael Goderbauer's avatar Michael Goderbauer Committed by GitHub
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Reland "migrate some material files to nullsafety (#67078)" (#67318)

parent aa90dbe7
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Showing with 1169 additions and 1245 deletions
packages/flutter/lib/src/material/app.dart
View file @ c14ab91f
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packages/flutter/lib/src/material/app_bar_theme.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'dart:ui' show lerpDouble;
import 'package:flutter/foundation.dart';
......@@ -46,54 +44,54 @@ class AppBarTheme with Diagnosticable {
/// Default value for [AppBar.brightness].
///
/// If null, [AppBar] uses [ThemeData.primaryColorBrightness].
final Brightness brightness;
final Brightness? brightness;
/// Default value for [AppBar.backgroundColor].
///
/// If null, [AppBar] uses [ThemeData.primaryColor].
final Color color;
final Color? color;
/// Default value for [AppBar.elevation].
///
/// If null, [AppBar] uses a default value of 4.0.
final double elevation;
final double? elevation;
/// Default value for [AppBar.shadowColor].
///
/// If null, [AppBar] uses a default value of fully opaque black.
final Color shadowColor;
final Color? shadowColor;
/// Default value for [AppBar.iconTheme].
///
/// If null, [AppBar] uses [ThemeData.primaryIconTheme].
final IconThemeData iconTheme;
final IconThemeData? iconTheme;
/// Default value for [AppBar.actionsIconTheme].
///
/// If null, [AppBar] uses [ThemeData.primaryIconTheme].
final IconThemeData actionsIconTheme;
final IconThemeData? actionsIconTheme;
/// Default value for [AppBar.textTheme].
///
/// If null, [AppBar] uses [ThemeData.primaryTextTheme].
final TextTheme textTheme;
final TextTheme? textTheme;
/// Default value for [AppBar.centerTitle].
///
/// If null, the value is adapted to current [TargetPlatform].
final bool centerTitle;
final bool? centerTitle;
/// Creates a copy of this object with the given fields replaced with the
/// new values.
AppBarTheme copyWith({
IconThemeData actionsIconTheme,
Brightness brightness,
Color color,
double elevation,
Color shadowColor,
IconThemeData iconTheme,
TextTheme textTheme,
bool centerTitle,
IconThemeData? actionsIconTheme,
Brightness? brightness,
Color? color,
double? elevation,
Color? shadowColor,
IconThemeData? iconTheme,
TextTheme? textTheme,
bool? centerTitle,
}) {
return AppBarTheme(
brightness: brightness ?? this.brightness,
......@@ -109,7 +107,7 @@ class AppBarTheme with Diagnosticable {
/// The [ThemeData.appBarTheme] property of the ambient [Theme].
static AppBarTheme of(BuildContext context) {
return Theme.of(context).appBarTheme;
return Theme.of(context)!.appBarTheme;
}
/// Linearly interpolate between two AppBar themes.
......@@ -117,7 +115,7 @@ class AppBarTheme with Diagnosticable {
/// The argument `t` must not be null.
///
/// {@macro dart.ui.shadow.lerp}
static AppBarTheme lerp(AppBarTheme a, AppBarTheme b, double t) {
static AppBarTheme lerp(AppBarTheme? a, AppBarTheme? b, double t) {
assert(t != null);
return AppBarTheme(
brightness: t < 0.5 ? a?.brightness : b?.brightness,
......
packages/flutter/lib/src/material/back_button.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'package:flutter/widgets.dart';
import 'debug.dart';
......@@ -27,7 +25,7 @@ import 'theme.dart';
class BackButtonIcon extends StatelessWidget {
/// Creates an icon that shows the appropriate "back" image for
/// the current platform (as obtained from the [Theme]).
const BackButtonIcon({ Key key }) : super(key: key);
const BackButtonIcon({ Key? key }) : super(key: key);
/// Returns the appropriate "back" icon for the given `platform`.
static IconData _getIconData(TargetPlatform platform) {
......@@ -41,12 +39,10 @@ class BackButtonIcon extends StatelessWidget {
case TargetPlatform.macOS:
return Icons.arrow_back_ios;
}
assert(false);
return null;
}
@override
Widget build(BuildContext context) => Icon(_getIconData(Theme.of(context).platform));
Widget build(BuildContext context) => Icon(_getIconData(Theme.of(context)!.platform));
}
/// A material design back button.
......@@ -78,13 +74,13 @@ class BackButtonIcon extends StatelessWidget {
class BackButton extends StatelessWidget {
/// Creates an [IconButton] with the appropriate "back" icon for the current
/// target platform.
const BackButton({ Key key, this.color, this.onPressed }) : super(key: key);
const BackButton({ Key? key, this.color, this.onPressed }) : super(key: key);
/// The color to use for the icon.
///
/// Defaults to the [IconThemeData.color] specified in the ambient [IconTheme],
/// which usually matches the ambient [Theme]'s [ThemeData.iconTheme].
final Color color;
final Color? color;
/// An override callback to perform instead of the default behavior which is
/// to pop the [Navigator].
......@@ -94,7 +90,7 @@ class BackButton extends StatelessWidget {
/// situations.
///
/// Defaults to null.
final VoidCallback onPressed;
final VoidCallback? onPressed;
@override
Widget build(BuildContext context) {
......@@ -102,10 +98,10 @@ class BackButton extends StatelessWidget {
return IconButton(
icon: const BackButtonIcon(),
color: color,
tooltip: MaterialLocalizations.of(context).backButtonTooltip,
tooltip: MaterialLocalizations.of(context)!.backButtonTooltip,
onPressed: () {
if (onPressed != null) {
onPressed();
onPressed!();
} else {
Navigator.maybePop(context);
}
......@@ -132,13 +128,13 @@ class BackButton extends StatelessWidget {
/// * [IconButton], to create other material design icon buttons.
class CloseButton extends StatelessWidget {
/// Creates a Material Design close button.
const CloseButton({ Key key, this.color, this.onPressed }) : super(key: key);
const CloseButton({ Key? key, this.color, this.onPressed }) : super(key: key);
/// The color to use for the icon.
///
/// Defaults to the [IconThemeData.color] specified in the ambient [IconTheme],
/// which usually matches the ambient [Theme]'s [ThemeData.iconTheme].
final Color color;
final Color? color;
/// An override callback to perform instead of the default behavior which is
/// to pop the [Navigator].
......@@ -148,7 +144,7 @@ class CloseButton extends StatelessWidget {
/// situations.
///
/// Defaults to null.
final VoidCallback onPressed;
final VoidCallback? onPressed;
@override
Widget build(BuildContext context) {
......@@ -156,10 +152,10 @@ class CloseButton extends StatelessWidget {
return IconButton(
icon: const Icon(Icons.close),
color: color,
tooltip: MaterialLocalizations.of(context).closeButtonTooltip,
tooltip: MaterialLocalizations.of(context)!.closeButtonTooltip,
onPressed: () {
if (onPressed != null) {
onPressed();
onPressed!();
} else {
Navigator.maybePop(context);
}
......
packages/flutter/lib/src/material/banner.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'package:flutter/widgets.dart';
import 'banner_theme.dart';
......@@ -35,10 +33,10 @@ class MaterialBanner extends StatelessWidget {
/// The [actions], [content], and [forceActionsBelow] must be non-null.
/// The [actions.length] must be greater than 0.
const MaterialBanner({
Key key,
@required this.content,
Key? key,
required this.content,
this.contentTextStyle,
@required this.actions,
required this.actions,
this.leading,
this.backgroundColor,
this.padding,
......@@ -58,7 +56,7 @@ class MaterialBanner extends StatelessWidget {
///
/// If `null`, [MaterialBannerThemeData.contentTextStyle] is used. If that is
/// also `null`, [TextTheme.bodyText2] of [ThemeData.textTheme] is used.
final TextStyle contentTextStyle;
final TextStyle? contentTextStyle;
/// The set of actions that are displayed at the bottom or trailing side of
/// the [MaterialBanner].
......@@ -69,13 +67,13 @@ class MaterialBanner extends StatelessWidget {
/// The (optional) leading widget of the [MaterialBanner].
///
/// Typically an [Icon] widget.
final Widget leading;
final Widget? leading;
/// The color of the surface of this [MaterialBanner].
///
/// If `null`, [MaterialBannerThemeData.backgroundColor] is used. If that is
/// also `null`, [ColorScheme.surface] of [ThemeData.colorScheme] is used.
final Color backgroundColor;
final Color? backgroundColor;
/// The amount of space by which to inset the [content].
///
......@@ -84,12 +82,12 @@ class MaterialBanner extends StatelessWidget {
///
/// If the [actions] are trailing the [content], this defaults to
/// `EdgeInsetsDirectional.only(start: 16.0, top: 2.0)`.
final EdgeInsetsGeometry padding;
final EdgeInsetsGeometry? padding;
/// The amount of space by which to inset the [leading] widget.
///
/// This defaults to `EdgeInsetsDirectional.only(end: 16.0)`.
final EdgeInsetsGeometry leadingPadding;
final EdgeInsetsGeometry? leadingPadding;
/// An override to force the [actions] to be below the [content] regardless of
/// how many there are.
......@@ -104,7 +102,7 @@ class MaterialBanner extends StatelessWidget {
Widget build(BuildContext context) {
assert(actions.isNotEmpty);
final ThemeData theme = Theme.of(context);
final ThemeData? theme = Theme.of(context);
final MaterialBannerThemeData bannerTheme = MaterialBannerTheme.of(context);
final bool isSingleRow = actions.length == 1 && !forceActionsBelow;
......@@ -127,10 +125,10 @@ class MaterialBanner extends StatelessWidget {
final Color backgroundColor = this.backgroundColor
?? bannerTheme.backgroundColor
?? theme.colorScheme.surface;
final TextStyle textStyle = contentTextStyle
?? theme!.colorScheme.surface;
final TextStyle? textStyle = contentTextStyle
?? bannerTheme.contentTextStyle
?? theme.textTheme.bodyText2;
?? theme!.textTheme.bodyText2;
return Container(
color: backgroundColor,
......
packages/flutter/lib/src/material/banner_theme.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'package:flutter/foundation.dart';
import 'package:flutter/widgets.dart';
......@@ -38,25 +36,25 @@ class MaterialBannerThemeData with Diagnosticable {
});
/// The background color of a [MaterialBanner].
final Color backgroundColor;
final Color? backgroundColor;
/// Used to configure the [DefaultTextStyle] for the [MaterialBanner.content]
/// widget.
final TextStyle contentTextStyle;
final TextStyle? contentTextStyle;
/// The amount of space by which to inset [MaterialBanner.content].
final EdgeInsetsGeometry padding;
final EdgeInsetsGeometry? padding;
/// The amount of space by which to inset [MaterialBanner.leading].
final EdgeInsetsGeometry leadingPadding;
final EdgeInsetsGeometry? leadingPadding;
/// Creates a copy of this object with the given fields replaced with the
/// new values.
MaterialBannerThemeData copyWith({
Color backgroundColor,
TextStyle contentTextStyle,
EdgeInsetsGeometry padding,
EdgeInsetsGeometry leadingPadding,
Color? backgroundColor,
TextStyle? contentTextStyle,
EdgeInsetsGeometry? padding,
EdgeInsetsGeometry? leadingPadding,
}) {
return MaterialBannerThemeData(
backgroundColor: backgroundColor ?? this.backgroundColor,
......@@ -71,7 +69,7 @@ class MaterialBannerThemeData with Diagnosticable {
/// The argument `t` must not be null.
///
/// {@macro dart.ui.shadow.lerp}
static MaterialBannerThemeData lerp(MaterialBannerThemeData a, MaterialBannerThemeData b, double t) {
static MaterialBannerThemeData lerp(MaterialBannerThemeData? a, MaterialBannerThemeData? b, double t) {
assert(t != null);
return MaterialBannerThemeData(
backgroundColor: Color.lerp(a?.backgroundColor, b?.backgroundColor, t),
......@@ -123,13 +121,13 @@ class MaterialBannerTheme extends InheritedTheme {
/// Creates a banner theme that controls the configurations for
/// [MaterialBanner]s in its widget subtree.
const MaterialBannerTheme({
Key key,
Key? key,
this.data,
Widget child,
required Widget child,
}) : super(key: key, child: child);
/// The properties for descendant [MaterialBanner] widgets.
final MaterialBannerThemeData data;
final MaterialBannerThemeData? data;
/// The closest instance of this class's [data] value that encloses the given
/// context.
......@@ -143,13 +141,13 @@ class MaterialBannerTheme extends InheritedTheme {
/// MaterialBannerThemeData theme = MaterialBannerTheme.of(context);
/// ```
static MaterialBannerThemeData of(BuildContext context) {
final MaterialBannerTheme bannerTheme = context.dependOnInheritedWidgetOfExactType<MaterialBannerTheme>();
return bannerTheme?.data ?? Theme.of(context).bannerTheme;
final MaterialBannerTheme? bannerTheme = context.dependOnInheritedWidgetOfExactType<MaterialBannerTheme>();
return bannerTheme?.data ?? Theme.of(context)!.bannerTheme;
}
@override
Widget wrap(BuildContext context, Widget child) {
final MaterialBannerTheme ancestorTheme = context.findAncestorWidgetOfExactType<MaterialBannerTheme>();
final MaterialBannerTheme? ancestorTheme = context.findAncestorWidgetOfExactType<MaterialBannerTheme>();
return identical(this, ancestorTheme) ? child : MaterialBannerTheme(data: data, child: child);
}
......
packages/flutter/lib/src/material/bottom_app_bar.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'package:flutter/foundation.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';
......@@ -50,7 +48,7 @@ class BottomAppBar extends StatefulWidget {
/// If the corresponding [BottomAppBarTheme] property is null, then the default
/// specified in the property's documentation will be used.
const BottomAppBar({
Key key,
Key? key,
this.color,
this.elevation,
this.shape,
......@@ -68,14 +66,14 @@ class BottomAppBar extends StatefulWidget {
///
/// Typically this the child will be a [Row], with the first child
/// being an [IconButton] with the [Icons.menu] icon.
final Widget child;
final Widget? child;
/// The bottom app bar's background color.
///
/// If this property is null then [BottomAppBarTheme.color] of
/// [ThemeData.bottomAppBarTheme] is used. If that's null then
/// [ThemeData.bottomAppBarColor] is used.
final Color color;
final Color? color;
/// The z-coordinate at which to place this bottom app bar relative to its
/// parent.
......@@ -86,14 +84,14 @@ class BottomAppBar extends StatefulWidget {
/// If this property is null then [BottomAppBarTheme.elevation] of
/// [ThemeData.bottomAppBarTheme] is used. If that's null, the default value
/// is 8.
final double elevation;
final double? elevation;
/// The notch that is made for the floating action button.
///
/// If this property is null then [BottomAppBarTheme.shape] of
/// [ThemeData.bottomAppBarTheme] is used. If that's null then the shape will
/// be rectangular with no notch.
final NotchedShape shape;
final NotchedShape? shape;
/// {@macro flutter.widgets.Clip}
///
......@@ -111,7 +109,7 @@ class BottomAppBar extends StatefulWidget {
}
class _BottomAppBarState extends State<BottomAppBar> {
ValueListenable<ScaffoldGeometry> geometryListenable;
late ValueListenable<ScaffoldGeometry> geometryListenable;
static const double _defaultElevation = 8.0;
@override
......@@ -123,7 +121,7 @@ class _BottomAppBarState extends State<BottomAppBar> {
@override
Widget build(BuildContext context) {
final BottomAppBarTheme babTheme = BottomAppBarTheme.of(context);
final NotchedShape notchedShape = widget.shape ?? babTheme.shape;
final NotchedShape? notchedShape = widget.shape ?? babTheme.shape;
final CustomClipper<Path> clipper = notchedShape != null
? _BottomAppBarClipper(
geometry: geometryListenable,
......@@ -132,7 +130,7 @@ class _BottomAppBarState extends State<BottomAppBar> {
)
: const ShapeBorderClipper(shape: RoundedRectangleBorder());
final double elevation = widget.elevation ?? babTheme.elevation ?? _defaultElevation;
final Color color = widget.color ?? babTheme.color ?? Theme.of(context).bottomAppBarColor;
final Color color = widget.color ?? babTheme.color ?? Theme.of(context)!.bottomAppBarColor;
final Color effectiveColor = ElevationOverlay.applyOverlay(context, color, elevation);
return PhysicalShape(
clipper: clipper,
......@@ -143,7 +141,7 @@ class _BottomAppBarState extends State<BottomAppBar> {
type: MaterialType.transparency,
child: widget.child == null
? null
: SafeArea(child: widget.child),
: SafeArea(child: widget.child!),
),
);
}
......@@ -151,9 +149,9 @@ class _BottomAppBarState extends State<BottomAppBar> {
class _BottomAppBarClipper extends CustomClipper<Path> {
const _BottomAppBarClipper({
@required this.geometry,
@required this.shape,
@required this.notchMargin,
required this.geometry,
required this.shape,
required this.notchMargin,
}) : assert(geometry != null),
assert(shape != null),
assert(notchMargin != null),
......@@ -168,9 +166,9 @@ class _BottomAppBarClipper extends CustomClipper<Path> {
// button is the floating action button's bounding rectangle in the
// coordinate system whose origin is at the appBar's top left corner,
// or null if there is no floating action button.
final Rect button = geometry.value.floatingActionButtonArea?.translate(
final Rect? button = geometry.value.floatingActionButtonArea?.translate(
0.0,
geometry.value.bottomNavigationBarTop * -1.0,
geometry.value.bottomNavigationBarTop! * -1.0,
);
return shape.getOuterPath(Offset.zero & size, button?.inflate(notchMargin));
}
......
packages/flutter/lib/src/material/bottom_app_bar_theme.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'dart:ui' show lerpDouble;
import 'package:flutter/foundation.dart';
......@@ -39,20 +37,20 @@ class BottomAppBarTheme with Diagnosticable {
/// Default value for [BottomAppBar.color].
///
/// If null, [BottomAppBar] uses [ThemeData.bottomAppBarColor].
final Color color;
final Color? color;
/// Default value for [BottomAppBar.elevation].
final double elevation;
final double? elevation;
/// Default value for [BottomAppBar.shape].
final NotchedShape shape;
final NotchedShape? shape;
/// Creates a copy of this object but with the given fields replaced with the
/// new values.
BottomAppBarTheme copyWith({
Color color,
double elevation,
NotchedShape shape,
Color? color,
double? elevation,
NotchedShape? shape,
}) {
return BottomAppBarTheme(
color: color ?? this.color,
......@@ -63,7 +61,7 @@ class BottomAppBarTheme with Diagnosticable {
/// The [ThemeData.bottomAppBarTheme] property of the ambient [Theme].
static BottomAppBarTheme of(BuildContext context) {
return Theme.of(context).bottomAppBarTheme;
return Theme.of(context)!.bottomAppBarTheme;
}
/// Linearly interpolate between two BAB themes.
......@@ -71,7 +69,7 @@ class BottomAppBarTheme with Diagnosticable {
/// The argument `t` must not be null.
///
/// {@macro dart.ui.shadow.lerp}
static BottomAppBarTheme lerp(BottomAppBarTheme a, BottomAppBarTheme b, double t) {
static BottomAppBarTheme lerp(BottomAppBarTheme? a, BottomAppBarTheme? b, double t) {
assert(t != null);
return BottomAppBarTheme(
color: Color.lerp(a?.color, b?.color, t),
......
packages/flutter/lib/src/material/bottom_navigation_bar_theme.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'dart:ui' show lerpDouble;
import 'package:flutter/foundation.dart';
......@@ -50,78 +48,78 @@ class BottomNavigationBarThemeData with Diagnosticable {
/// The color of the [BottomNavigationBar] itself.
///
/// See [BottomNavigationBar.backgroundColor].
final Color backgroundColor;
final Color? backgroundColor;
/// The z-coordinate of the [BottomNavigationBar].
///
/// See [BottomNavigationBar.elevation].
final double elevation;
final double? elevation;
/// The size, opacity, and color of the icon in the currently selected
/// [BottomNavigationBarItem.icon].
///
/// See [BottomNavigationBar.selectedIconTheme].
final IconThemeData selectedIconTheme;
final IconThemeData? selectedIconTheme;
/// The size, opacity, and color of the icon in the currently unselected
/// [BottomNavigationBarItem.icon]s.
///
/// See [BottomNavigationBar.unselectedIconTheme].
final IconThemeData unselectedIconTheme;
final IconThemeData? unselectedIconTheme;
/// The color of the selected [BottomNavigationBarItem.icon] and
/// [BottomNavigationBarItem.title].
///
/// See [BottomNavigationBar.selectedItemColor].
final Color selectedItemColor;
final Color? selectedItemColor;
/// The color of the unselected [BottomNavigationBarItem.icon] and
/// [BottomNavigationBarItem.title]s.
///
/// See [BottomNavigationBar.unselectedItemColor].
final Color unselectedItemColor;
final Color? unselectedItemColor;
/// The [TextStyle] of the [BottomNavigationBarItem] labels when they are
/// selected.
///
/// See [BottomNavigationBar.selectedLabelStyle].
final TextStyle selectedLabelStyle;
final TextStyle? selectedLabelStyle;
/// The [TextStyle] of the [BottomNavigationBarItem] labels when they are not
/// selected.
///
/// See [BottomNavigationBar.unselectedLabelStyle].
final TextStyle unselectedLabelStyle;
final TextStyle? unselectedLabelStyle;
/// Whether the labels are shown for the unselected [BottomNavigationBarItem]s.
///
/// See [BottomNavigationBar.showSelectedLabels].
final bool showSelectedLabels;
final bool? showSelectedLabels;
/// Whether the labels are shown for the selected [BottomNavigationBarItem].
///
/// See [BottomNavigationBar.showUnselectedLabels].
final bool showUnselectedLabels;
final bool? showUnselectedLabels;
/// Defines the layout and behavior of a [BottomNavigationBar].
///
/// See [BottomNavigationBar.type].
final BottomNavigationBarType type;
final BottomNavigationBarType? type;
/// Creates a copy of this object but with the given fields replaced with the
/// new values.
BottomNavigationBarThemeData copyWith({
Color backgroundColor,
double elevation,
IconThemeData selectedIconTheme,
IconThemeData unselectedIconTheme,
Color selectedItemColor,
Color unselectedItemColor,
TextStyle selectedLabelStyle,
TextStyle unselectedLabelStyle,
bool showSelectedLabels,
bool showUnselectedLabels,
BottomNavigationBarType type,
Color? backgroundColor,
double? elevation,
IconThemeData? selectedIconTheme,
IconThemeData? unselectedIconTheme,
Color? selectedItemColor,
Color? unselectedItemColor,
TextStyle? selectedLabelStyle,
TextStyle? unselectedLabelStyle,
bool? showSelectedLabels,
bool? showUnselectedLabels,
BottomNavigationBarType? type,
}) {
return BottomNavigationBarThemeData(
backgroundColor: backgroundColor ?? this.backgroundColor,
......@@ -143,7 +141,7 @@ class BottomNavigationBarThemeData with Diagnosticable {
/// The argument `t` must not be null.
///
/// {@macro dart.ui.shadow.lerp}
static BottomNavigationBarThemeData lerp(BottomNavigationBarThemeData a, BottomNavigationBarThemeData b, double t) {
static BottomNavigationBarThemeData lerp(BottomNavigationBarThemeData? a, BottomNavigationBarThemeData? b, double t) {
assert(t != null);
return BottomNavigationBarThemeData(
backgroundColor: Color.lerp(a?.backgroundColor, b?.backgroundColor, t),
......@@ -235,9 +233,9 @@ class BottomNavigationBarTheme extends InheritedWidget {
///
/// The [data] must not be null.
const BottomNavigationBarTheme({
Key key,
@required this.data,
Widget child,
Key? key,
required this.data,
required Widget child,
}) : assert(data != null), super(key: key, child: child);
/// The properties used for all descendant [BottomNavigationBar] widgets.
......@@ -254,8 +252,8 @@ class BottomNavigationBarTheme extends InheritedWidget {
/// BottomNavigationBarThemeData theme = BottomNavigationBarTheme.of(context);
/// ```
static BottomNavigationBarThemeData of(BuildContext context) {
final BottomNavigationBarTheme bottomNavTheme = context.dependOnInheritedWidgetOfExactType<BottomNavigationBarTheme>();
return bottomNavTheme?.data ?? Theme.of(context).bottomNavigationBarTheme;
final BottomNavigationBarTheme? bottomNavTheme = context.dependOnInheritedWidgetOfExactType<BottomNavigationBarTheme>();
return bottomNavTheme?.data ?? Theme.of(context)!.bottomNavigationBarTheme;
}
@override
......
packages/flutter/lib/src/material/button.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'dart:math' as math;
import 'package:flutter/foundation.dart';
......@@ -51,8 +49,8 @@ class RawMaterialButton extends StatefulWidget {
/// [elevation], [focusElevation], [hoverElevation], [highlightElevation], and
/// [disabledElevation] must be non-negative.
const RawMaterialButton({
Key key,
@required this.onPressed,
Key? key,
required this.onPressed,
this.onLongPress,
this.onHighlightChanged,
this.mouseCursor,
......@@ -75,7 +73,7 @@ class RawMaterialButton extends StatefulWidget {
this.clipBehavior = Clip.none,
this.focusNode,
this.autofocus = false,
MaterialTapTargetSize materialTapTargetSize,
MaterialTapTargetSize? materialTapTargetSize,
this.child,
this.enableFeedback = true,
}) : materialTapTargetSize = materialTapTargetSize ?? MaterialTapTargetSize.padded,
......@@ -99,7 +97,7 @@ class RawMaterialButton extends StatefulWidget {
/// See also:
///
/// * [enabled], which is true if the button is enabled.
final VoidCallback onPressed;
final VoidCallback? onPressed;
/// Called when the button is long-pressed.
///
......@@ -108,7 +106,7 @@ class RawMaterialButton extends StatefulWidget {
/// See also:
///
/// * [enabled], which is true if the button is enabled.
final VoidCallback onLongPress;
final VoidCallback? onLongPress;
/// Called by the underlying [InkWell] widget's [InkWell.onHighlightChanged]
/// callback.
......@@ -116,7 +114,7 @@ class RawMaterialButton extends StatefulWidget {
/// If [onPressed] changes from null to non-null while a gesture is ongoing,
/// this can fire during the build phase (in which case calling
/// [State.setState] is not allowed).
final ValueChanged<bool> onHighlightChanged;
final ValueChanged<bool>? onHighlightChanged;
/// {@template flutter.material.button.mouseCursor}
/// The cursor for a mouse pointer when it enters or is hovering over the
......@@ -132,7 +130,7 @@ class RawMaterialButton extends StatefulWidget {
///
/// If this property is null, [MaterialStateMouseCursor.clickable] will be used.
/// {@endtemplate}
final MouseCursor mouseCursor;
final MouseCursor? mouseCursor;
/// Defines the default text style, with [Material.textStyle], for the
/// button's [child].
......@@ -144,22 +142,22 @@ class RawMaterialButton extends StatefulWidget {
/// * [MaterialState.hovered].
/// * [MaterialState.focused].
/// * [MaterialState.disabled].
final TextStyle textStyle;
final TextStyle? textStyle;
/// The color of the button's [Material].
final Color fillColor;
final Color? fillColor;
/// The color for the button's [Material] when it has the input focus.
final Color focusColor;
final Color? focusColor;
/// The color for the button's [Material] when a pointer is hovering over it.
final Color hoverColor;
final Color? hoverColor;
/// The highlight color for the button's [InkWell].
final Color highlightColor;
final Color? highlightColor;
/// The splash color for the button's [InkWell].
final Color splashColor;
final Color? splashColor;
/// The elevation for the button's [Material] when the button
/// is [enabled] but not pressed.
......@@ -275,7 +273,7 @@ class RawMaterialButton extends StatefulWidget {
final Duration animationDuration;
/// Typically the button's label.
final Widget child;
final Widget? child;
/// Whether the button is enabled or disabled.
///
......@@ -293,7 +291,7 @@ class RawMaterialButton extends StatefulWidget {
final MaterialTapTargetSize materialTapTargetSize;
/// {@macro flutter.widgets.Focus.focusNode}
final FocusNode focusNode;
final FocusNode? focusNode;
/// {@macro flutter.widgets.Focus.autofocus}
final bool autofocus;
......@@ -334,7 +332,7 @@ class _RawMaterialButtonState extends State<RawMaterialButton> {
setState(() {
_updateState(MaterialState.pressed, value);
if (widget.onHighlightChanged != null) {
widget.onHighlightChanged(value);
widget.onHighlightChanged!(value);
}
});
}
......@@ -395,11 +393,11 @@ class _RawMaterialButtonState extends State<RawMaterialButton> {
@override
Widget build(BuildContext context) {
final Color effectiveTextColor = MaterialStateProperty.resolveAs<Color>(widget.textStyle?.color, _states);
final ShapeBorder effectiveShape = MaterialStateProperty.resolveAs<ShapeBorder>(widget.shape, _states);
final Color? effectiveTextColor = MaterialStateProperty.resolveAs<Color>(widget.textStyle?.color, _states);
final ShapeBorder? effectiveShape = MaterialStateProperty.resolveAs<ShapeBorder>(widget.shape, _states);
final Offset densityAdjustment = widget.visualDensity.baseSizeAdjustment;
final BoxConstraints effectiveConstraints = widget.visualDensity.effectiveConstraints(widget.constraints);
final MouseCursor effectiveMouseCursor = MaterialStateProperty.resolveAs<MouseCursor>(
final MouseCursor? effectiveMouseCursor = MaterialStateProperty.resolveAs<MouseCursor>(
widget.mouseCursor ?? MaterialStateMouseCursor.clickable,
_states,
);
......@@ -487,9 +485,9 @@ class _RawMaterialButtonState extends State<RawMaterialButton> {
/// "tap target", but not its material or its ink splashes.
class _InputPadding extends SingleChildRenderObjectWidget {
const _InputPadding({
Key key,
Widget child,
this.minSize,
Key? key,
Widget? child,
required this.minSize,
}) : super(key: key, child: child);
final Size minSize;
......@@ -506,7 +504,7 @@ class _InputPadding extends SingleChildRenderObjectWidget {
}
class _RenderInputPadding extends RenderShiftedBox {
_RenderInputPadding(this._minSize, [RenderBox child]) : super(child);
_RenderInputPadding(this._minSize, [RenderBox? child]) : super(child);
Size get minSize => _minSize;
Size _minSize;
......@@ -520,58 +518,57 @@ class _RenderInputPadding extends RenderShiftedBox {
@override
double computeMinIntrinsicWidth(double height) {
if (child != null)
return math.max(child.getMinIntrinsicWidth(height), minSize.width);
return math.max(child!.getMinIntrinsicWidth(height), minSize.width);
return 0.0;
}
@override
double computeMinIntrinsicHeight(double width) {
if (child != null)
return math.max(child.getMinIntrinsicHeight(width), minSize.height);
return math.max(child!.getMinIntrinsicHeight(width), minSize.height);
return 0.0;
}
@override
double computeMaxIntrinsicWidth(double height) {
if (child != null)
return math.max(child.getMaxIntrinsicWidth(height), minSize.width);
return math.max(child!.getMaxIntrinsicWidth(height), minSize.width);
return 0.0;
}
@override
double computeMaxIntrinsicHeight(double width) {
if (child != null)
return math.max(child.getMaxIntrinsicHeight(width), minSize.height);
return math.max(child!.getMaxIntrinsicHeight(width), minSize.height);
return 0.0;
}
@override
void performLayout() {
final BoxConstraints constraints = this.constraints;
if (child != null) {
child.layout(constraints, parentUsesSize: true);
final double height = math.max(child.size.width, minSize.width);
final double width = math.max(child.size.height, minSize.height);
child!.layout(constraints, parentUsesSize: true);
final double height = math.max(child!.size.width, minSize.width);
final double width = math.max(child!.size.height, minSize.height);
size = constraints.constrain(Size(height, width));
final BoxParentData childParentData = child.parentData as BoxParentData;
childParentData.offset = Alignment.center.alongOffset(size - child.size as Offset);
final BoxParentData childParentData = child!.parentData as BoxParentData;
childParentData.offset = Alignment.center.alongOffset(size - child!.size as Offset);
} else {
size = Size.zero;
}
}
@override
bool hitTest(BoxHitTestResult result, { Offset position }) {
bool hitTest(BoxHitTestResult result, { required Offset position }) {
if (super.hitTest(result, position: position)) {
return true;
}
final Offset center = child.size.center(Offset.zero);
final Offset center = child!.size.center(Offset.zero);
return result.addWithRawTransform(
transform: MatrixUtils.forceToPoint(center),
position: center,
hitTest: (BoxHitTestResult result, Offset position) {
hitTest: (BoxHitTestResult result, Offset? position) {
assert(position == center);
return child.hitTest(result, position: center);
return child!.hitTest(result, position: center);
},
);
}
......
packages/flutter/lib/src/material/button_bar.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'package:flutter/widgets.dart';
import 'package:flutter/rendering.dart';
......@@ -56,7 +54,7 @@ class ButtonBar extends StatelessWidget {
/// Both [buttonMinWidth] and [buttonHeight] must be non-negative if they
/// are not null.
const ButtonBar({
Key key,
Key? key,
this.alignment,
this.mainAxisSize,
this.buttonTextTheme,
......@@ -77,13 +75,13 @@ class ButtonBar extends StatelessWidget {
///
/// If null then it will use [ButtonBarThemeData.alignment]. If that is null,
/// it will default to [MainAxisAlignment.end].
final MainAxisAlignment alignment;
final MainAxisAlignment? alignment;
/// How much horizontal space is available. See [Row.mainAxisSize].
///
/// If null then it will use the surrounding [ButtonBarThemeData.mainAxisSize].
/// If that is null, it will default to [MainAxisSize.max].
final MainAxisSize mainAxisSize;
final MainAxisSize? mainAxisSize;
/// Overrides the surrounding [ButtonBarThemeData.buttonTextTheme] to define a
/// button's base colors, size, internal padding and shape.
......@@ -91,21 +89,21 @@ class ButtonBar extends StatelessWidget {
/// If null then it will use the surrounding
/// [ButtonBarThemeData.buttonTextTheme]. If that is null, it will default to
/// [ButtonTextTheme.primary].
final ButtonTextTheme buttonTextTheme;
final ButtonTextTheme? buttonTextTheme;
/// Overrides the surrounding [ButtonThemeData.minWidth] to define a button's
/// minimum width.
///
/// If null then it will use the surrounding [ButtonBarThemeData.buttonMinWidth].
/// If that is null, it will default to 64.0 logical pixels.
final double buttonMinWidth;
final double? buttonMinWidth;
/// Overrides the surrounding [ButtonThemeData.height] to define a button's
/// minimum height.
///
/// If null then it will use the surrounding [ButtonBarThemeData.buttonHeight].
/// If that is null, it will default to 36.0 logical pixels.
final double buttonHeight;
final double? buttonHeight;
/// Overrides the surrounding [ButtonThemeData.padding] to define the padding
/// for a button's child (typically the button's label).
......@@ -113,14 +111,14 @@ class ButtonBar extends StatelessWidget {
/// If null then it will use the surrounding [ButtonBarThemeData.buttonPadding].
/// If that is null, it will default to 8.0 logical pixels on the left
/// and right.
final EdgeInsetsGeometry buttonPadding;
final EdgeInsetsGeometry? buttonPadding;
/// Overrides the surrounding [ButtonThemeData.alignedDropdown] to define whether
/// a [DropdownButton] menu's width will match the button's width.
///
/// If null then it will use the surrounding [ButtonBarThemeData.buttonAlignedDropdown].
/// If that is null, it will default to false.
final bool buttonAlignedDropdown;
final bool? buttonAlignedDropdown;
/// Defines whether a [ButtonBar] should size itself with a minimum size
/// constraint or with padding.
......@@ -129,7 +127,7 @@ class ButtonBar extends StatelessWidget {
///
/// If null then it will use the surrounding [ButtonBarThemeData.layoutBehavior].
/// If that is null, it will default [ButtonBarLayoutBehavior.padded].
final ButtonBarLayoutBehavior layoutBehavior;
final ButtonBarLayoutBehavior? layoutBehavior;
/// Defines the vertical direction of a [ButtonBar]'s children if it
/// overflows.
......@@ -145,7 +143,7 @@ class ButtonBar extends StatelessWidget {
/// If null then it will use the surrounding
/// [ButtonBarThemeData.overflowDirection]. If that is null, it will
/// default to [VerticalDirection.down].
final VerticalDirection overflowDirection;
final VerticalDirection? overflowDirection;
/// The spacing between buttons when the button bar overflows.
///
......@@ -161,7 +159,7 @@ class ButtonBar extends StatelessWidget {
///
/// If null then no spacing will be added in between buttons in
/// an overflow state.
final double overflowButtonSpacing;
final double? overflowButtonSpacing;
/// The buttons to arrange horizontally.
///
......@@ -216,8 +214,6 @@ class ButtonBar extends StatelessWidget {
child: child,
);
}
assert(false);
return null;
}
}
......@@ -239,14 +235,14 @@ class _ButtonBarRow extends Flex {
/// Creates a button bar that attempts to display in a row, but displays in
/// a column if there is insufficient horizontal space.
_ButtonBarRow({
List<Widget> children,
required List<Widget> children,
Axis direction = Axis.horizontal,
MainAxisSize mainAxisSize = MainAxisSize.max,
MainAxisAlignment mainAxisAlignment = MainAxisAlignment.start,
CrossAxisAlignment crossAxisAlignment = CrossAxisAlignment.center,
TextDirection textDirection,
TextDirection? textDirection,
VerticalDirection overflowDirection = VerticalDirection.down,
TextBaseline textBaseline,
TextBaseline? textBaseline,
this.overflowButtonSpacing,
}) : super(
children: children,
......@@ -259,7 +255,7 @@ class _ButtonBarRow extends Flex {
textBaseline: textBaseline,
);
final double overflowButtonSpacing;
final double? overflowButtonSpacing;
@override
_RenderButtonBarRow createRenderObject(BuildContext context) {
......@@ -268,7 +264,7 @@ class _ButtonBarRow extends Flex {
mainAxisAlignment: mainAxisAlignment,
mainAxisSize: mainAxisSize,
crossAxisAlignment: crossAxisAlignment,
textDirection: getEffectiveTextDirection(context),
textDirection: getEffectiveTextDirection(context)!,
verticalDirection: verticalDirection,
textBaseline: textBaseline,
overflowButtonSpacing: overflowButtonSpacing,
......@@ -307,14 +303,14 @@ class _RenderButtonBarRow extends RenderFlex {
/// Creates a button bar that attempts to display in a row, but displays in
/// a column if there is insufficient horizontal space.
_RenderButtonBarRow({
List<RenderBox> children,
List<RenderBox>? children,
Axis direction = Axis.horizontal,
MainAxisSize mainAxisSize = MainAxisSize.max,
MainAxisAlignment mainAxisAlignment = MainAxisAlignment.start,
CrossAxisAlignment crossAxisAlignment = CrossAxisAlignment.center,
@required TextDirection textDirection,
required TextDirection textDirection,
VerticalDirection verticalDirection = VerticalDirection.down,
TextBaseline textBaseline,
TextBaseline? textBaseline,
this.overflowButtonSpacing,
}) : assert(textDirection != null),
assert(overflowButtonSpacing == null || overflowButtonSpacing >= 0),
......@@ -330,13 +326,13 @@ class _RenderButtonBarRow extends RenderFlex {
);
bool _hasCheckedLayoutWidth = false;
double overflowButtonSpacing;
double? overflowButtonSpacing;
@override
BoxConstraints get constraints {
if (_hasCheckedLayoutWidth)
return super.constraints;
return super.constraints?.copyWith(maxWidth: double.infinity);
return super.constraints.copyWith(maxWidth: double.infinity);
}
@override
......@@ -359,7 +355,7 @@ class _RenderButtonBarRow extends RenderFlex {
super.performLayout();
} else {
final BoxConstraints childConstraints = constraints.copyWith(minWidth: 0.0);
RenderBox child;
RenderBox? child;
double currentHeight = 0.0;
switch (verticalDirection) {
case VerticalDirection.down:
......@@ -381,7 +377,7 @@ class _RenderButtonBarRow extends RenderFlex {
// alignment for a row. For [MainAxisAlignment.spaceAround],
// [MainAxisAlignment.spaceBetween] and [MainAxisAlignment.spaceEvenly]
// cases, use [MainAxisAlignment.start].
switch (textDirection) {
switch (textDirection!) {
case TextDirection.ltr:
switch (mainAxisAlignment) {
case MainAxisAlignment.center:
......@@ -422,7 +418,7 @@ class _RenderButtonBarRow extends RenderFlex {
}
if (overflowButtonSpacing != null && child != null)
currentHeight += overflowButtonSpacing;
currentHeight += overflowButtonSpacing!;
}
size = constraints.constrain(Size(constraints.maxWidth, currentHeight));
}
......
packages/flutter/lib/src/material/button_bar_theme.dart
View file @ c14ab91f
......@@ -2,8 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// @dart = 2.8
import 'dart:ui' show lerpDouble;
import 'package:flutter/foundation.dart';
......@@ -46,10 +44,10 @@ class ButtonBarThemeData with Diagnosticable {
assert(buttonHeight == null || buttonHeight >= 0.0);
/// How the children should be placed along the horizontal axis.
final MainAxisAlignment alignment;
final MainAxisAlignment? alignment;
/// How much horizontal space is available. See [Row.mainAxisSize].
final MainAxisSize mainAxisSize;
final MainAxisSize? mainAxisSize;
/// Defines a [ButtonBar] button's base colors, and the defaults for
/// the button's minimum size, internal padding, and shape.
......@@ -59,7 +57,7 @@ class ButtonBarThemeData with Diagnosticable {
///
/// Despite the name, this property is not a [TextTheme], its value is not a
/// collection of [TextStyle]s.
final ButtonTextTheme buttonTextTheme;
final ButtonTextTheme? buttonTextTheme;
/// The minimum width for [ButtonBar] buttons.
///
......@@ -68,19 +66,19 @@ class ButtonBarThemeData with Diagnosticable {
///
/// The actual horizontal space allocated for a button's child is
/// at least this value less the theme's horizontal [ButtonThemeData.padding].
final double buttonMinWidth;
final double? buttonMinWidth;
/// The minimum height for [ButtonBar] buttons.
///
/// This will override the surrounding [ButtonThemeData.height] setting
/// for buttons contained in the [ButtonBar].
final double buttonHeight;
final double? buttonHeight;
/// Padding for a [ButtonBar] button's child (typically the button's label).
///
/// This will override the surrounding [ButtonThemeData.padding] setting
/// for buttons contained in the [ButtonBar].
final EdgeInsetsGeometry buttonPadding;
final EdgeInsetsGeometry? buttonPadding;
/// If true, then a [DropdownButton] menu's width will match the [ButtonBar]
/// button's width.
......@@ -95,11 +93,11 @@ class ButtonBarThemeData with Diagnosticable {
///
/// This property only affects [DropdownButton] contained in a [ButtonBar]
/// and its menu.
final bool buttonAlignedDropdown;
final bool? buttonAlignedDropdown;
/// Defines whether a [ButtonBar] should size itself with a minimum size
/// constraint or with padding.
final ButtonBarLayoutBehavior layoutBehavior;
final ButtonBarLayoutBehavior? layoutBehavior;
/// Defines the vertical direction of a [ButtonBar]'s children if it
/// overflows.
......@@ -111,20 +109,20 @@ class ButtonBarThemeData with Diagnosticable {
/// the first action will be at the bottom of the column if this
/// property is set to [VerticalDirection.up], since it "starts" at the
/// bottom and "ends" at the top.
final VerticalDirection overflowDirection;
final VerticalDirection? overflowDirection;
/// Creates a copy of this object but with the given fields replaced with the
/// new values.
ButtonBarThemeData copyWith({
MainAxisAlignment alignment,
MainAxisSize mainAxisSize,
ButtonTextTheme buttonTextTheme,
double buttonMinWidth,
double buttonHeight,
EdgeInsetsGeometry buttonPadding,
bool buttonAlignedDropdown,
ButtonBarLayoutBehavior layoutBehavior,
VerticalDirection overflowDirection,
MainAxisAlignment? alignment,
MainAxisSize? mainAxisSize,
ButtonTextTheme? buttonTextTheme,
double? buttonMinWidth,
double? buttonHeight,
EdgeInsetsGeometry? buttonPadding,
bool? buttonAlignedDropdown,
ButtonBarLayoutBehavior? layoutBehavior,
VerticalDirection? overflowDirection,
}) {
return ButtonBarThemeData(
alignment: alignment ?? this.alignment,
......@@ -144,20 +142,20 @@ class ButtonBarThemeData with Diagnosticable {
/// If both arguments are null, then null is returned.
///
/// {@macro dart.ui.shadow.lerp}
static ButtonBarThemeData lerp(ButtonBarThemeData a, ButtonBarThemeData b, double t) {
static ButtonBarThemeData? lerp(ButtonBarThemeData? a, ButtonBarThemeData? b, double t) {
assert(t != null);
if (a == null && b == null)
return null;
return ButtonBarThemeData(
alignment: t < 0.5 ? a.alignment : b.alignment,
mainAxisSize: t < 0.5 ? a.mainAxisSize : b.mainAxisSize,
buttonTextTheme: t < 0.5 ? a.buttonTextTheme : b.buttonTextTheme,
alignment: t < 0.5 ? a?.alignment : b?.alignment,
mainAxisSize: t < 0.5 ? a?.mainAxisSize : b?.mainAxisSize,
buttonTextTheme: t < 0.5 ? a?.buttonTextTheme : b?.buttonTextTheme,
buttonMinWidth: lerpDouble(a?.buttonMinWidth, b?.buttonMinWidth, t),
buttonHeight: lerpDouble(a?.buttonHeight, b?.buttonHeight, t),
buttonPadding: EdgeInsetsGeometry.lerp(a?.buttonPadding, b?.buttonPadding, t),
buttonAlignedDropdown: t < 0.5 ? a.buttonAlignedDropdown : b.buttonAlignedDropdown,
layoutBehavior: t < 0.5 ? a.layoutBehavior : b.layoutBehavior,
overflowDirection: t < 0.5 ? a.overflowDirection : b.overflowDirection,
buttonAlignedDropdown: t < 0.5 ? a?.buttonAlignedDropdown : b?.buttonAlignedDropdown,
layoutBehavior: t < 0.5 ? a?.layoutBehavior : b?.layoutBehavior,
overflowDirection: t < 0.5 ? a?.overflowDirection : b?.overflowDirection,
);
}
......@@ -235,9 +233,9 @@ class ButtonBarTheme extends InheritedWidget {
///
/// The [data] must not be null.
const ButtonBarTheme({
Key key,
@required this.data,
Widget child,
Key? key,
required this.data,
required Widget child,
}) : assert(data != null), super(key: key, child: child);
/// The properties used for all descendant [ButtonBar] widgets.
......@@ -253,8 +251,8 @@ class ButtonBarTheme extends InheritedWidget {
/// ButtonBarThemeData theme = ButtonBarTheme.of(context);
/// ```
static ButtonBarThemeData of(BuildContext context) {
final ButtonBarTheme buttonBarTheme = context.dependOnInheritedWidgetOfExactType<ButtonBarTheme>();
return buttonBarTheme?.data ?? Theme.of(context).buttonBarTheme;
final ButtonBarTheme? buttonBarTheme = context.dependOnInheritedWidgetOfExactType<ButtonBarTheme>();
return buttonBarTheme?.data ?? Theme.of(context)!.buttonBarTheme;
}
@override
......
packages/flutter/test/material/bottom_navigation_bar_theme_test.dart
View file @ c14ab91f
......@@ -30,7 +30,7 @@ void main() {
expect(themeData.showUnselectedLabels, null);
expect(themeData.type, null);
const BottomNavigationBarTheme theme = BottomNavigationBarTheme(data: BottomNavigationBarThemeData());
const BottomNavigationBarTheme theme = BottomNavigationBarTheme(data: BottomNavigationBarThemeData(), child: SizedBox());
expect(theme.data.backgroundColor, null);
expect(theme.data.elevation, null);
expect(theme.data.selectedIconTheme, null);
......
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