flutter · Piinks · Jul 22, 2026 · Jul 22, 2026 · Jul 22, 2026
diff --git a/packages/cupertino_ui/lib/cupertino_ui.dart b/packages/cupertino_ui/lib/cupertino_ui.dart
@@ -11,14 +11,16 @@
 /// example the [Material
 /// Design](https://docs.flutter.dev/ui/widgets/material) set.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=3PdUaidHc-E}
+/// Learn more about Cupertino widgets on the [Flutter YouTube channel](https://www.youtube.com/watch?v=3PdUaidHc-E).
 ///
 /// See also:
 ///
 ///  * [flutter.dev/widgets/cupertino](https://docs.flutter.dev/ui/widgets/cupertino)
 ///    for a catalog of all Cupertino widgets.
 ///  * [flutter.dev/widgets](https://docs.flutter.dev/ui/widgets)
 ///    for a catalog of commonly-used Flutter widgets.
+/// @docImport 'package:flutter_test/flutter_test.dart';
+/// @docImport 'package:intl/intl.dart';
 library cupertino_ui;
 
 export 'package:flutter/widgets.dart';

diff --git a/packages/cupertino_ui/lib/src/activity_indicator.dart b/packages/cupertino_ui/lib/src/activity_indicator.dart
@@ -19,7 +19,7 @@ const Color _kActiveTickColor = CupertinoDynamicColor.withBrightness(
 
 /// An iOS-style activity indicator that spins clockwise.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=AENVH-ZqKDQ}
+/// Learn more about [CupertinoActivityIndicator] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=AENVH-ZqKDQ).
 ///
 /// <callout-box>
 ///

diff --git a/packages/cupertino_ui/lib/src/checkbox.dart b/packages/cupertino_ui/lib/src/checkbox.dart
@@ -48,7 +48,7 @@ const List<double> _kDisabledDarkGradientOpacities = <double>[0.08, 0.14];
 
 /// A macOS style checkbox.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=ua54JU7k1Us}
+/// Learn more about [CupertinoCheckbox] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=ua54JU7k1Us).
 ///
 /// The checkbox itself does not maintain any state. Instead, when the state of
 /// the checkbox changes, the widget calls the [onChanged] callback. Most

diff --git a/packages/cupertino_ui/lib/src/dialog.dart b/packages/cupertino_ui/lib/src/dialog.dart
@@ -195,7 +195,7 @@ bool _isInAccessibilityMode(BuildContext context) {
 
 /// An iOS-style alert dialog.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=75CsnyRXf5I}
+/// Learn more about [CupertinoAlertDialog] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=75CsnyRXf5I).
 ///
 /// An alert dialog informs the user about situations that require
 /// acknowledgment. An alert dialog has an optional title, optional content,
@@ -1052,7 +1052,7 @@ class _ActionSheetGestureDetector extends StatelessWidget {
 
 /// An iOS-style action sheet.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=U-ao8p4A82k}
+/// Learn more about [CupertinoActionSheet] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=U-ao8p4A82k).
 ///
 /// An action sheet is a specific style of alert that presents the user
 /// with a set of two or more choices related to the current context.

diff --git a/packages/cupertino_ui/lib/src/l10n/generated_cupertino_localizations.dart b/packages/cupertino_ui/lib/src/l10n/generated_cupertino_localizations.dart
@@ -6,6 +6,9 @@
 // To regenerate the file, use:
 // dart script/l10n/bin/gen_localizations.dart --overwrite
 
+/// @docImport 'package:intl/intl.dart';
+library;
+
 import 'dart:collection';
 
 import 'package:flutter/widgets.dart';

diff --git a/packages/cupertino_ui/lib/src/radio.dart b/packages/cupertino_ui/lib/src/radio.dart
@@ -59,7 +59,7 @@ const List<double> _kDisabledDarkGradientOpacities = <double>[0.08, 0.14];
 
 /// A widget that builds a [RawRadio] with a macOS-style UI.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=D0xwcz2IqAY}
+/// Learn more about [CupertinoRadio] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=D0xwcz2IqAY).
 ///
 /// Used to select between a number of mutually exclusive values. When one radio
 /// button in a group is selected, the other radio buttons in the group are

diff --git a/packages/cupertino_ui/lib/src/scrollbar.dart b/packages/cupertino_ui/lib/src/scrollbar.dart
@@ -35,7 +35,7 @@ const double _kScrollbarCrossAxisMargin = 3.0;
 /// To add a scrollbar to a [ScrollView], wrap the scroll view widget in
 /// a [CupertinoScrollbar] widget.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=DbkIQSvwnZc}
+/// Learn more about [CupertinoScrollbar] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=DbkIQSvwnZc).
 ///
 /// {@macro flutter.widgets.Scrollbar}
 ///

diff --git a/packages/cupertino_ui/lib/src/sheet.dart b/packages/cupertino_ui/lib/src/sheet.dart
@@ -105,7 +105,7 @@ typedef _GetSheetDragged = bool Function();
 /// Shows a Cupertino-style sheet widget that slides up from the bottom of the
 /// screen and stacks the previous route behind the new sheet.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=5H-WvH5O29I}
+/// Learn more about [CupertinoSheetRoute] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=5H-WvH5O29I).
 ///
 /// This is a convenience method for displaying [CupertinoSheetRoute] for most
 /// use cases. The Widget returned from `scrollableBuilder` will be used to display
@@ -591,7 +591,7 @@ class _StretchDragControllerProvider extends InheritedWidget {
 
 /// Route for displaying an iOS sheet styled page.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=5H-WvH5O29I}
+/// Learn more about [CupertinoSheetRoute] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=5H-WvH5O29I).
 ///
 /// The `CupertinoSheetRoute` will slide up from the bottom of the screen and stop
 /// below the top of the screen. If the previous route is a non-sheet route, then

diff --git a/packages/cupertino_ui/lib/src/slider.dart b/packages/cupertino_ui/lib/src/slider.dart
@@ -36,7 +36,7 @@ const double _kVelocityThreshold = 1.0;
 
 /// An iOS-style slider.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=ufb4gIPDmEs}
+/// Learn more about [CupertinoSlider] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=ufb4gIPDmEs).
 ///
 /// Used to select from a range of values.
 ///

diff --git a/packages/cupertino_ui/lib/src/sliding_segmented_control.dart b/packages/cupertino_ui/lib/src/sliding_segmented_control.dart
@@ -309,7 +309,7 @@ class _SegmentSeparatorState extends State<_SegmentSeparator>
 
 /// An iOS 13 style segmented control.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=esnBf6V4C34}
+/// Learn more about [CupertinoSlidingSegmentedControl] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=esnBf6V4C34).
 ///
 /// Displays the widgets provided in the [Map] of [children] in a horizontal list.
 /// It allows the user to select between a number of mutually exclusive options,

diff --git a/packages/cupertino_ui/lib/src/switch.dart b/packages/cupertino_ui/lib/src/switch.dart
@@ -69,7 +69,7 @@ const CupertinoDynamicColor _kOffLabelColor = CupertinoDynamicColor.withBrightne
 ///
 /// Used to toggle the on/off state of a single setting.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=24tg_N4sdMQ}
+/// Learn more about [CupertinoSwitch] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=24tg_N4sdMQ).
 ///
 /// The switch itself does not maintain its toggle state. Instead, when the
 /// toggle state of the switch changes, the widget calls the [onChanged]

diff --git a/packages/material_ui/lib/material_ui.dart b/packages/material_ui/lib/material_ui.dart
@@ -6,14 +6,16 @@
 ///
 /// To use, import `package:material_ui/material_ui.dart`.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=DL0Ix1lnC4w}
+/// Learn more about Material Design widgets on the [Flutter YouTube channel](https://www.youtube.com/watch?v=DL0Ix1lnC4w).
 ///
 /// See also:
 ///
 ///  * [docs.flutter.dev/ui/widgets/material](https://docs.flutter.dev/ui/widgets/material)
 ///    for a catalog of commonly-used Material component widgets.
 ///  * [m3.material.io](https://m3.material.io/) for the Material 3 specification
 ///  * [m2.material.io](https://m2.material.io/) for the Material 2 specification
+/// @docImport 'package:flutter_test/flutter_test.dart';
+/// @docImport 'package:intl/intl.dart';
 library material_ui;
 
 export 'package:flutter/widgets.dart';

diff --git a/packages/material_ui/lib/src/about.dart b/packages/material_ui/lib/src/about.dart
@@ -333,7 +333,7 @@ const double _textVerticalSeparation = 18.0;
 ///
 /// To show an [AboutDialog], use [showAboutDialog].
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=YFCSODyFxbE}
+/// Learn more about [AboutDialog] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=YFCSODyFxbE).
 ///
 /// If the application has a [Drawer], the [AboutListTile] widget can make the
 /// process of showing an about dialog simpler.

diff --git a/packages/material_ui/lib/src/animated_icons/animated_icons.dart b/packages/material_ui/lib/src/animated_icons/animated_icons.dart
@@ -14,7 +14,7 @@ part of material_animated_icons; // ignore: use_string_in_part_of_directives
 ///
 /// The available icons are specified in [AnimatedIcons].
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=pJcbh8pbvJs}
+/// Learn more about [AnimatedIcon] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=pJcbh8pbvJs).
 ///
 /// <callout-box>
 ///

diff --git a/packages/material_ui/lib/src/app_bar.dart b/packages/material_ui/lib/src/app_bar.dart
@@ -1520,7 +1520,7 @@ class _SliverAppBarDelegate extends SliverPersistentHeaderDelegate {
 /// common actions with [IconButton]s which are optionally followed by a
 /// [PopupMenuButton] for less common operations.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=R9C5KMJKluE}
+/// Learn more about [SliverAppBar] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=R9C5KMJKluE).
 ///
 /// Sliver app bars are typically used as the first child of a
 /// [CustomScrollView], which lets the app bar integrate with the scroll view so

diff --git a/packages/material_ui/lib/src/autocomplete.dart b/packages/material_ui/lib/src/autocomplete.dart
@@ -12,7 +12,7 @@ import 'theme.dart';
 
 /// {@macro flutter.widgets.RawAutocomplete.RawAutocomplete}
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=-Nny8kzW380}
+/// Learn more about [Autocomplete] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=-Nny8kzW380).
 ///
 /// <callout-box>
 ///

diff --git a/packages/material_ui/lib/src/checkbox_list_tile.dart b/packages/material_ui/lib/src/checkbox_list_tile.dart
@@ -34,7 +34,7 @@ enum _CheckboxType { material, adaptive }
 /// The entire list tile is interactive: tapping anywhere in the tile toggles
 /// the checkbox.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=RkSqPAn9szs}
+/// Learn more about [CheckboxListTile] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=RkSqPAn9szs).
 ///
 /// The [value], [onChanged], [activeColor] and [checkColor] properties of this widget are
 /// identical to the similarly-named properties on the [Checkbox] widget.

diff --git a/packages/material_ui/lib/src/data_table.dart b/packages/material_ui/lib/src/data_table.dart
@@ -388,7 +388,7 @@ class DataCell {
 /// [Material 2](https://material.io/go/design-data-tables)
 /// design specification.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=ktTajqbhIcY}
+/// Learn more about [DataTable] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=ktTajqbhIcY).
 ///
 /// ## Performance considerations
 ///

diff --git a/packages/material_ui/lib/src/dialog.dart b/packages/material_ui/lib/src/dialog.dart
@@ -327,7 +327,7 @@ class Dialog extends StatelessWidget {
 /// title and an optional list of actions. The title is displayed above the
 /// content and the actions are displayed below the content.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=75CsnyRXf5I}
+/// Learn more about [AlertDialog] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=75CsnyRXf5I).
 ///
 /// For dialogs that offer the user a choice between several options, consider
 /// using a [SimpleDialog].

diff --git a/packages/material_ui/lib/src/divider.dart b/packages/material_ui/lib/src/divider.dart
@@ -24,7 +24,7 @@ import 'theme.dart';
 /// To create a divider between [ListTile] items, consider using
 /// [ListTile.divideTiles], which is optimized for this case.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=_liUC641Nmk}
+/// Learn more about [Divider] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=_liUC641Nmk).
 ///
 /// The box's total height is controlled by [height]. The appropriate
 /// padding is automatically computed from the height.

diff --git a/packages/material_ui/lib/src/drawer.dart b/packages/material_ui/lib/src/drawer.dart
@@ -70,7 +70,7 @@ const Duration _kBaseSettleDuration = Duration(milliseconds: 246);
 /// that's preferred for applications that are configured for Material 3
 /// (see [ThemeData.useMaterial3]).
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=WRj86iHihgY}
+/// Learn more about [Drawer] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=WRj86iHihgY).
 ///
 /// Drawers are typically used with the [Scaffold.drawer] property. The child of
 /// the drawer is usually a [ListView] whose first child is a [DrawerHeader]

diff --git a/packages/material_ui/lib/src/dropdown.dart b/packages/material_ui/lib/src/dropdown.dart
@@ -924,7 +924,7 @@ class DropdownButtonHideUnderline extends InheritedWidget {
 /// from [DropdownButton] to [DropdownMenu].
 ///
 /// ## Using [DropdownButton]
-/// {@youtube 560 315 https://www.youtube.com/watch?v=ZzQ_PWrFihg}
+/// Learn more about [DropdownButton] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=ZzQ_PWrFihg).
 ///
 /// One ancestor must be a [Material] widget and typically this is
 /// provided by the app's [Scaffold].

diff --git a/packages/material_ui/lib/src/dropdown_menu.dart b/packages/material_ui/lib/src/dropdown_menu.dart
@@ -150,7 +150,7 @@ enum DropdownMenuCloseBehavior {
 /// A dropdown menu that can be opened from a [TextField]. The selected
 /// menu item is displayed in that field.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=giV9AbM2gd8}
+/// Learn more about [DropdownMenu] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=giV9AbM2gd8).
 ///
 /// This widget is used to help people make a choice from a menu and put the
 /// selected item into the text input field. People can also filter the list based

diff --git a/packages/material_ui/lib/src/expansion_panel.dart b/packages/material_ui/lib/src/expansion_panel.dart
@@ -62,7 +62,7 @@ typedef ExpansionPanelHeaderBuilder = Widget Function(BuildContext context, bool
 /// expanded or collapsed. The body of the panel is only visible when it is
 /// expanded.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=2aJZzRMziJc}
+/// Learn more about [ExpansionPanel] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=2aJZzRMziJc).
 ///
 /// Expansion panels are only intended to be used as children for
 /// [ExpansionPanelList].

diff --git a/packages/material_ui/lib/src/flexible_space_bar.dart b/packages/material_ui/lib/src/flexible_space_bar.dart
@@ -44,7 +44,7 @@ enum StretchMode {
 /// The part of a Material Design [AppBar] that expands, collapses, and
 /// stretches.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=mSc7qFzxHDw}
+/// Learn more about [FlexibleSpaceBar] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=mSc7qFzxHDw).
 ///
 /// Most commonly used in the [SliverAppBar.flexibleSpace] field, a flexible
 /// space bar expands and contracts as the app scrolls so that the [AppBar]

diff --git a/packages/material_ui/lib/src/floating_action_button.dart b/packages/material_ui/lib/src/floating_action_button.dart
@@ -35,7 +35,7 @@ enum _FloatingActionButtonType { regular, small, large, extended }
 /// to promote a primary action in the application. Floating action buttons are
 /// most commonly used in the [Scaffold.floatingActionButton] field.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=2uaoEDOgk_I}
+/// Learn more about [FloatingActionButton] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=2uaoEDOgk_I).
 ///
 /// Use at most a single floating action button per screen. Floating action
 /// buttons should be used for positive actions such as "create", "share", or

diff --git a/packages/material_ui/lib/src/l10n/generated_material_localizations.dart b/packages/material_ui/lib/src/l10n/generated_material_localizations.dart
@@ -6,6 +6,9 @@
 // To regenerate the file, use:
 // dart script/l10n/bin/gen_localizations.dart --overwrite
 
+/// @docImport 'package:intl/intl.dart';
+library;
+
 import 'dart:collection';
 
 import 'package:flutter/widgets.dart';

diff --git a/packages/material_ui/lib/src/list_tile.dart b/packages/material_ui/lib/src/list_tile.dart
@@ -168,7 +168,7 @@ enum ListTileTitleAlignment {
 /// A single fixed-height row that typically contains some text as well as
 /// a leading or trailing icon.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=l8dj0yPBvgQ}
+/// Learn more about [ListTile] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=l8dj0yPBvgQ).
 ///
 /// A list tile contains one to three lines of text optionally flanked by icons or
 /// other widgets, such as check boxes. The icons (or other widgets) for the

diff --git a/packages/material_ui/lib/src/material_state.dart b/packages/material_ui/lib/src/material_state.dart
@@ -532,7 +532,7 @@ class _WidgetInputBorderMapper extends WidgetStateMapper<InputBorder>
 /// on a widget's interactive "state", which is defined as a set
 /// of [MaterialState]s.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=CylXr3AF3uU}
+/// Learn more about [WidgetStateProperty] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=CylXr3AF3uU).
 ///
 /// Material state properties represent values that depend on a widget's material
 /// "state". The state is encoded as a set of [MaterialState] values, like

diff --git a/packages/material_ui/lib/src/navigation_bar.dart b/packages/material_ui/lib/src/navigation_bar.dart
@@ -36,7 +36,7 @@ const double _kMaxLabelTextScaleFactor = 1.3;
 
 /// Material 3 Navigation Bar component.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=DVGYddFaLv0}
+/// Learn more about [NavigationBar] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=DVGYddFaLv0).
 ///
 /// Navigation bars offer a persistent and convenient way to switch between
 /// primary destinations in an app.
@@ -250,7 +250,7 @@ class NavigationBar extends StatelessWidget {
   /// the [NavigationDestination] is focused, hovered, or pressed.
   final WidgetStateProperty<Color?>? overlayColor;
 
-  //// The text style of the label.
+  /// The text style of the label.
   ///
   /// If null, [NavigationBarThemeData.labelTextStyle] is used. If that
   /// is also null, the default text style is [TextTheme.labelMedium] with

diff --git a/packages/material_ui/lib/src/navigation_rail.dart b/packages/material_ui/lib/src/navigation_rail.dart
@@ -28,7 +28,7 @@ const double _kIndicatorHeight = 32;
 /// app to navigate between a small number of views, typically between three and
 /// five.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=y9xchtVTtqQ}
+/// Learn more about [NavigationRail] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=y9xchtVTtqQ).
 ///
 /// The navigation rail is meant for layouts with wide viewports, such as a
 /// desktop web or tablet landscape layout. For smaller layouts, like mobile

diff --git a/packages/material_ui/lib/src/progress_indicator.dart b/packages/material_ui/lib/src/progress_indicator.dart
@@ -364,7 +364,7 @@ class _LinearProgressIndicatorPainter extends CustomPainter {
 
 /// A Material Design linear progress indicator, also known as a progress bar.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=O-rhXZLtpv0}
+/// Learn more about [LinearProgressIndicator] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=O-rhXZLtpv0).
 ///
 /// A widget that shows progress along a line. There are two kinds of linear
 /// progress indicators:
@@ -798,7 +798,7 @@ class _CircularProgressIndicatorPainter extends CustomPainter {
 /// A Material Design circular progress indicator, which spins to indicate that
 /// the application is busy.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=O-rhXZLtpv0}
+/// Learn more about [CircularProgressIndicator] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=O-rhXZLtpv0).
 ///
 /// A widget that shows progress along a circle. There are two kinds of circular
 /// progress indicators:

diff --git a/packages/material_ui/lib/src/range_slider.dart b/packages/material_ui/lib/src/range_slider.dart
@@ -45,7 +45,7 @@ typedef PaintRangeValueIndicator = void Function(PaintingContext context, Offset
 ///
 /// Used to select a range from a range of values.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=ufb4gIPDmEs}
+/// Learn more about [RangeSlider] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=ufb4gIPDmEs).
 ///
 /// <callout-box>
 ///

diff --git a/packages/material_ui/lib/src/refresh_indicator.dart b/packages/material_ui/lib/src/refresh_indicator.dart
@@ -76,7 +76,7 @@ enum _IndicatorType { material, adaptive, noSpinner }
 
 /// A widget that supports the Material "swipe to refresh" idiom.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=ORApMlzwMdM}
+/// Learn more about [RefreshIndicator] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=ORApMlzwMdM).
 ///
 /// When the child's [Scrollable] descendant overscrolls, an animated circular
 /// progress indicator is faded into view. When the scroll ends, if the

diff --git a/packages/material_ui/lib/src/reorderable_list.dart b/packages/material_ui/lib/src/reorderable_list.dart
@@ -20,7 +20,7 @@ import 'theme.dart';
 
 /// A list whose items the user can interactively reorder by dragging.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=3fB1mxOsqJE}
+/// Learn more about [ReorderableListView] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=3fB1mxOsqJE).
 ///
 /// This sample shows by dragging the user can reorder the items of the list.
 /// The [onReorderItem] parameter will be called when a child

diff --git a/packages/material_ui/lib/src/scaffold.dart b/packages/material_ui/lib/src/scaffold.dart
@@ -78,7 +78,7 @@ enum _ScaffoldSlot {
 
 /// Manages [SnackBar]s and [MaterialBanner]s for descendant [Scaffold]s.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=lytQi-slT5Y}
+/// Learn more about [ScaffoldMessenger] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=lytQi-slT5Y).
 ///
 /// This class provides APIs for showing snack bars and material banners at the
 /// bottom and top of the screen, respectively.

diff --git a/packages/material_ui/lib/src/scrollbar.dart b/packages/material_ui/lib/src/scrollbar.dart
@@ -22,7 +22,7 @@ const Duration _kScrollbarTimeToFade = Duration(milliseconds: 600);
 /// To add a scrollbar to a [ScrollView], wrap the scroll view
 /// widget in a [Scrollbar] widget.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=DbkIQSvwnZc}
+/// Learn more about [Scrollbar] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=DbkIQSvwnZc).
 ///
 /// {@macro flutter.widgets.Scrollbar}
 ///

diff --git a/packages/material_ui/lib/src/selectable_text.dart b/packages/material_ui/lib/src/selectable_text.dart
@@ -84,7 +84,7 @@ class _SelectableTextSelectionGestureDetectorBuilder extends TextSelectionGestur
 /// The string might break across multiple lines or might all be displayed on
 /// the same line depending on the layout constraints.
 ///
-/// {@youtube 560 315 https://www.youtube.com/watch?v=ZSU3ZXOs6hc}
+/// Learn more about [SelectableText] on the [Flutter YouTube channel](https://www.youtube.com/watch?v=ZSU3ZXOs6hc).
 ///
 /// The [style] argument is optional. When omitted, the text will use the style
 /// from the closest enclosing [DefaultTextStyle]. If the given style's