Minor docs updates (#64966)

packages/flutter/lib/src/cupertino/route.dart

@@ -91,7 +91,7 @@ final DecorationTween _kGradientShadowTween = DecorationTween(
 /// See also:
 ///
 ///  * [MaterialRouteTransitionMixin], which is a mixin that provides
-///    platform-appropriate transitions for a [PageRoute]
+///    platform-appropriate transitions for a [PageRoute].
 ///  * [CupertinoPageRoute], which is a [PageRoute] that leverages this mixin.
 mixin CupertinoRouteTransitionMixin<T> on PageRoute<T> {
   /// Builds the primary contents of the route.

packages/flutter/lib/src/cupertino/slider.dart

@@ -21,6 +21,8 @@ import 'thumb_painter.dart';
 
 /// An iOS-style slider.
 ///
+/// {@youtube 560 315 https://www.youtube.com/watch?v=ufb4gIPDmEs}
+///
 /// Used to select from a range of values.
 ///
 /// A slider can be used to select from either a continuous or a discrete set of

packages/flutter/lib/src/cupertino/tab_scaffold.dart

@@ -195,7 +195,7 @@ class CupertinoTabController extends ChangeNotifier {
 /// See also:
 ///
 ///  * [CupertinoTabBar], the bottom tab bar inserted in the scaffold.
-///  * [CupertinoTabController], the selection state of this widget
+///  * [CupertinoTabController], the selection state of this widget.
 ///  * [CupertinoTabView], the typical root content of each tab that holds its own
 ///    [Navigator] stack.
 ///  * [CupertinoPageRoute], a route hosting modal pages with iOS style transitions.

packages/flutter/lib/src/cupertino/text_field.dart

@@ -212,7 +212,8 @@ class CupertinoTextField extends StatefulWidget {
   ///
   /// See also:
   ///
-  ///  * [minLines]
+  ///  * [minLines], which is the minimum number of lines to occupy when the
+  ///    content spans fewer lines.
   ///  * [expands], to allow the widget to size itself to its parent's height.
   ///  * [maxLength], which discusses the precise meaning of "number of
   ///    characters" and how it may differ from the intuitive meaning.

packages/flutter/lib/src/foundation/assertions.dart

@@ -378,7 +378,7 @@ class ErrorSpacer extends DiagnosticsProperty<void> {
 /// See also:
 ///
 ///   * [FlutterError.onError], which is called whenever the Flutter framework
-///     catches an error
+///     catches an error.
 class FlutterErrorDetails with Diagnosticable {
   /// Creates a [FlutterErrorDetails] object with the given arguments setting
   /// the object's properties.
@@ -893,10 +893,10 @@ class FlutterError extends Error with DiagnosticableTreeMixin implements Asserti
   /// ```dart
   /// FlutterError.demangleStackTrace = (StackTrace stackTrace) {
   ///   if (stack is stack_trace.Trace)
-  //      return stack.vmTrace;
-  //    if (stack is stack_trace.Chain)
-  //      return stack.toTrace().vmTrace;
-  //    return stack;
+  ///     return stack.vmTrace;
+  ///   if (stack is stack_trace.Chain)
+  ///     return stack.toTrace().vmTrace;
+  ///   return stack;
   /// };
   /// ```
   static StackTraceDemangler demangleStackTrace = (StackTrace stackTrace) => stackTrace;

packages/flutter/lib/src/foundation/diagnostics.dart

@@ -1542,7 +1542,8 @@ abstract class DiagnosticsNode {
   ///
   /// See also:
   ///
-  ///  * [getProperties]
+  ///  * [getProperties], which returns the properties of the [DiagnosticsNode]
+  ///    object.
   List<DiagnosticsNode> getChildren();
 
   String get _separator => showSeparator ? ':' : '';

packages/flutter/lib/src/gestures/long_press.dart

@@ -109,7 +109,7 @@ class LongPressMoveUpdateDetails {
 /// See also:
 ///
 ///  * [LongPressGestureRecognizer.onLongPressEnd], which uses [GestureLongPressEndCallback].
-///  * [LongPressMoveUpdateDetails], the details for [GestureLongPressMoveUpdateCallback]
+///  * [LongPressMoveUpdateDetails], the details for [GestureLongPressMoveUpdateCallback].
 ///  * [LongPressStartDetails], the details for [GestureLongPressStartCallback].
 class LongPressEndDetails {
   /// Creates the details for a [GestureLongPressEndCallback].

packages/flutter/lib/src/material/material_state.dart

@@ -23,7 +23,7 @@ import 'package:flutter/rendering.dart';
 ///  * [MaterialStateColor], a [Color] that implements `MaterialStateProperty`
 ///    which is used in APIs that need to accept either a [Color] or a
 ///    `MaterialStateProperty<Color>`.
-///  * [MaterialStateMouseCursor], a [MouseCursor] that implements `MaterialStateProperty`.
+///  * [MaterialStateMouseCursor], a [MouseCursor] that implements `MaterialStateProperty`
 ///    which is used in APIs that need to accept either a [MouseCursor] or a
 ///    [MaterialStateProperty<MouseCursor>].
 
@@ -339,7 +339,7 @@ class _EnabledAndDisabledMouseCursor extends MaterialStateMouseCursor {
 ///  * [MaterialStateColor], a [Color] that implements `MaterialStateProperty`
 ///    which is used in APIs that need to accept either a [Color] or a
 ///    `MaterialStateProperty<Color>`.
-///  * [MaterialStateMouseCursor], a [MouseCursor] that implements `MaterialStateProperty`.
+///  * [MaterialStateMouseCursor], a [MouseCursor] that implements `MaterialStateProperty`
 ///    which is used in APIs that need to accept either a [MouseCursor] or a
 ///    [MaterialStateProperty<MouseCursor>].
 abstract class MaterialStateProperty<T> {

packages/flutter/lib/src/material/page_transitions_theme.dart

@@ -194,7 +194,7 @@ class _ZoomPageTransition extends StatelessWidget {
   /// See also:
   ///
   ///  * [TransitionRoute.secondaryAnimation], which is the value given to this
-  //     property when the [_ZoomPageTransition] is used as a page transition.
+  ///    property when the [_ZoomPageTransition] is used as a page transition.
   final Animation<double> secondaryAnimation;
 
   /// The widget below this widget in the tree.

packages/flutter/lib/src/material/range_slider.dart

@@ -33,6 +33,8 @@ 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}
+///
 /// {@tool dartpad --template=stateful_widget_scaffold}
 ///
 /// ![A range slider widget, consisting of 5 divisions and showing the default

packages/flutter/lib/src/material/slider.dart

@@ -39,6 +39,8 @@ enum _SliderType { material, adaptive }
 ///
 /// Used to select from a range of values.
 ///
+/// {@youtube 560 315 https://www.youtube.com/watch?v=ufb4gIPDmEs}
+///
 /// {@tool dartpad --template=stateful_widget_scaffold}
 ///
 /// ![A slider widget, consisting of 5 divisions and showing the default value

packages/flutter/lib/src/rendering/error.dart

@@ -91,7 +91,7 @@ class RenderErrorBox extends RenderBox {
   /// See also:
   ///
   ///  * [minimumWidth], which controls how wide the box must be before the
-  //     horizontal padding is applied.
+  ///    horizontal padding is applied.
   static EdgeInsets padding = const EdgeInsets.fromLTRB(64.0, 96.0, 64.0, 12.0);
 
   /// The width below which the horizontal padding is not applied.

packages/flutter/lib/src/rendering/object.dart

@@ -3489,9 +3489,9 @@ abstract class _InterestingSemanticsFragment extends _SemanticsFragment {
   ///  * [SemanticsNode.parentSemanticsClipRect] for the source and definition
   ///    of the `parentSemanticsClipRect` argument.
   ///  * [SemanticsNode.parentPaintClipRect] for the source and definition
-  //     of the `parentPaintClipRect` argument.
+  ///    of the `parentPaintClipRect` argument.
   ///  * [SemanticsNode.elevationAdjustment] for the source and definition
-  //    of the `elevationAdjustment` argument.
+  ///    of the `elevationAdjustment` argument.
   void compileChildren({
     required Rect? parentSemanticsClipRect,
     required Rect? parentPaintClipRect,

packages/flutter/lib/src/services/text_formatter.dart

@@ -356,7 +356,7 @@ class LengthLimitingTextInputFormatter extends TextInputFormatter {
   ///
   /// See also:
   ///  * [Dart's characters package](https://pub.dev/packages/characters).
-  ///  * [Dart's documenetation on runes and grapheme clusters](https://dart.dev/guides/language/language-tour#runes-and-grapheme-clusters).
+  ///  * [Dart's documentation on runes and grapheme clusters](https://dart.dev/guides/language/language-tour#runes-and-grapheme-clusters).
   @visibleForTesting
   static TextEditingValue truncate(TextEditingValue value, int maxLength) {
     final CharacterRange iterator = CharacterRange(value.text);

packages/flutter/lib/src/widgets/editable_text.dart

@@ -564,7 +564,7 @@ class EditableText extends StatefulWidget {
   ///
   /// See also:
   ///
-  ///  * [showCursor], which controls the visibility of the cursor..
+  ///  * [showCursor], which controls the visibility of the cursor.
   final bool showSelectionHandles;
 
   /// {@template flutter.widgets.editableText.showCursor}

packages/flutter/lib/src/widgets/scroll_physics.dart

@@ -669,7 +669,7 @@ class BouncingScrollPhysics extends ScrollPhysics {
 ///    glow color is specified to use [ThemeData.accentColor].
 class ClampingScrollPhysics extends ScrollPhysics {
   /// Creates scroll physics that prevent the scroll offset from exceeding the
-  /// bounds of the content..
+  /// bounds of the content.
   const ClampingScrollPhysics({ ScrollPhysics? parent }) : super(parent: parent);
 
   @override

packages/flutter/test/material/page_selector_test.dart

@@ -92,7 +92,7 @@ void main() {
     tabController.animateTo(1, duration: const Duration(milliseconds: 200));
     await tester.pump();
     // Verify that indicator 0's color is becoming increasingly transparent,
-    /// and indicator 1's color is becoming increasingly opaque during the
+    // and indicator 1's color is becoming increasingly opaque during the
     // 200ms animation. Indicator 2 remains transparent throughout.
     await tester.pump(const Duration(milliseconds: 10));
     List<Color> colors = indicatorColors(tester);