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Unverified Commit 3fce16c3 authored by Zachary Anderson's avatar Zachary Anderson Committed by GitHub
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Revert "Default Keyboard ScrollActions with PrimaryScrollController (#69795)" (#70391) 

This reverts commit 1f0df545.
parent ce248ed8
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Showing with 141 additions and 261 deletions
packages/flutter/lib/src/cupertino/page_scaffold.dart
View file @ 3fce16c3
......@@ -12,12 +12,6 @@ import 'theme.dart';
/// The scaffold lays out the navigation bar on top and the content between or
/// behind the navigation bar.
///
/// When tapping a status bar at the top of the CupertinoPageScaffold, an
/// animation will complete for the current primary [ScrollView], scrolling to
/// the beginning. This is done using the [PrimaryScrollController] that
/// encloses the [ScrollView]. The [ScrollView.primary] flag is used to connect
/// a [ScrollView] to the enclosing [PrimaryScrollController].
///
/// See also:
///
/// * [CupertinoTabScaffold], a similar widget for tabbed applications.
......@@ -81,11 +75,11 @@ class CupertinoPageScaffold extends StatefulWidget {
}
class _CupertinoPageScaffoldState extends State<CupertinoPageScaffold> {
final ScrollController _primaryScrollController = ScrollController();
void _handleStatusBarTap() {
final ScrollController? _primaryScrollController = PrimaryScrollController.of(context);
// Only act on the scroll controller if it has any attached scroll positions.
if (_primaryScrollController != null && _primaryScrollController.hasClients) {
if (_primaryScrollController.hasClients) {
_primaryScrollController.animateTo(
0.0,
// Eyeballed from iOS.
......@@ -169,7 +163,10 @@ class _CupertinoPageScaffoldState extends State<CupertinoPageScaffold> {
child: Stack(
children: <Widget>[
// The main content being at the bottom is added to the stack first.
paddedContent,
PrimaryScrollController(
controller: _primaryScrollController,
child: paddedContent,
),
if (widget.navigationBar != null)
Positioned(
top: 0.0,
......
packages/flutter/lib/src/material/scaffold.dart
View file @ 3fce16c3
......@@ -2670,11 +2670,13 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin {
// iOS FEATURES - status bar tap, back gesture
// On iOS, tapping the status bar scrolls the app's primary scrollable to the
// top. We implement this by looking up the primary scroll controller and
// top. We implement this by providing a primary scroll controller and
// scrolling it to the top when tapped.
final ScrollController _primaryScrollController = ScrollController();
void _handleStatusBarTap() {
final ScrollController? _primaryScrollController = PrimaryScrollController.of(context);
if (_primaryScrollController != null && _primaryScrollController.hasClients) {
if (_primaryScrollController.hasClients) {
_primaryScrollController.animateTo(
0.0,
duration: const Duration(milliseconds: 300),
......@@ -3158,6 +3160,8 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin {
return _ScaffoldScope(
hasDrawer: hasDrawer,
geometryNotifier: _geometryNotifier,
child: PrimaryScrollController(
controller: _primaryScrollController,
child: Material(
color: widget.backgroundColor ?? themeData.scaffoldBackgroundColor,
child: AnimatedBuilder(animation: _floatingActionButtonMoveController, builder: (BuildContext context, Widget? child) {
......@@ -3180,6 +3184,7 @@ class ScaffoldState extends State<Scaffold> with TickerProviderStateMixin {
);
}),
),
),
);
}
}
......
packages/flutter/lib/src/widgets/primary_scroll_controller.dart
View file @ 3fce16c3
......@@ -16,19 +16,6 @@ import 'scroll_controller.dart';
/// This mechanism can be used to provide default behavior for scroll views in a
/// subtree. For example, the [Scaffold] uses this mechanism to implement the
/// scroll-to-top gesture on iOS.
///
/// Another default behavior handled by the PrimaryScrollController is default
/// [ScrollAction]s. If a ScrollAction is not handled by an otherwise focused
/// part of the application, the ScrollAction will be evaluated using the scroll
/// view associated with a PrimaryScrollController, for example, when executing
/// [Shortcuts] key events like page up and down.
///
/// See also:
/// * [ScrollAction], an [Action] that scrolls the [Scrollable] that encloses
/// the current [primaryFocus] or is attached to the PrimaryScrollController.
/// * [Shortcuts], a widget that establishes a [ShortcutManager] to be used
/// by its descendants when invoking an [Action] via a keyboard key
/// combination that maps to an [Intent].
class PrimaryScrollController extends InheritedWidget {
/// Creates a widget that associates a [ScrollController] with a subtree.
const PrimaryScrollController({
......
packages/flutter/lib/src/widgets/routes.dart
View file @ 3fce16c3
......@@ -18,9 +18,7 @@ import 'modal_barrier.dart';
import 'navigator.dart';
import 'overlay.dart';
import 'page_storage.dart';
import 'primary_scroll_controller.dart';
import 'restoration.dart';
import 'scroll_controller.dart';
import 'transitions.dart';
// Examples can assume:
......@@ -714,7 +712,6 @@ class _ModalScopeState<T> extends State<_ModalScope<T>> {
/// The node this scope will use for its root [FocusScope] widget.
final FocusScopeNode focusScopeNode = FocusScopeNode(debugLabel: '$_ModalScopeState Focus Scope');
final ScrollController primaryScrollController = ScrollController();
@override
void initState() {
......@@ -795,8 +792,6 @@ class _ModalScopeState<T> extends State<_ModalScope<T>> {
bucket: widget.route._storageBucket, // immutable
child: Actions(
actions: _actionMap,
child: PrimaryScrollController(
controller: primaryScrollController,
child: FocusScope(
node: focusScopeNode, // immutable
child: RepaintBoundary(
......@@ -844,7 +839,6 @@ class _ModalScopeState<T> extends State<_ModalScope<T>> {
),
),
),
),
);
}
}
......
packages/flutter/lib/src/widgets/scroll_view.dart
View file @ 3fce16c3
......@@ -149,11 +149,6 @@ abstract class ScrollView extends StatelessWidget {
/// sufficient content to actually scroll. Otherwise, by default the user can
/// only scroll the view if it has sufficient content. See [physics].
///
/// Also when true, the scroll view is used for default [ScrollAction]s. If a
/// ScrollAction is not handled by an otherwise focused part of the application,
/// the ScrollAction will be evaluated using this scroll view, for example,
/// when executing [Shortcuts] key events like page up and down.
///
/// On iOS, this also identifies the scroll view that will scroll to top in
/// response to a tap in the status bar.
///
......
packages/flutter/lib/src/widgets/scrollable.dart
View file @ 3fce16c3
......@@ -17,7 +17,6 @@ import 'focus_manager.dart';
import 'framework.dart';
import 'gesture_detector.dart';
import 'notification_listener.dart';
import 'primary_scroll_controller.dart';
import 'restoration.dart';
import 'restoration_properties.dart';
import 'scroll_configuration.dart';
......@@ -960,10 +959,6 @@ class ScrollIntent extends Intent {
/// An [Action] that scrolls the [Scrollable] that encloses the current
/// [primaryFocus] by the amount configured in the [ScrollIntent] given to it.
///
/// If a Scrollable cannot be found above the current [primaryFocus], the
/// [PrimaryScrollController] will be considered for default handling of
/// [ScrollAction]s.
///
/// If [Scrollable.incrementCalculator] is null for the scrollable, the default
/// for a [ScrollIntent.type] set to [ScrollIncrementType.page] is 80% of the
/// size of the scroll window, and for [ScrollIncrementType.line], 50 logical
......@@ -972,21 +967,7 @@ class ScrollAction extends Action<ScrollIntent> {
@override
bool isEnabled(ScrollIntent intent) {
final FocusNode? focus = primaryFocus;
final bool contextIsValid = focus != null && focus.context != null;
if (contextIsValid) {
// Check for primary scrollable within the current context
if (Scrollable.of(focus!.context!) != null)
return true;
// Check for fallback scrollable with context from PrimaryScrollController
if (PrimaryScrollController.of(focus.context!) != null) {
final ScrollController? primaryScrollController = PrimaryScrollController.of(focus.context!);
return primaryScrollController != null
&& primaryScrollController.hasClients
&& primaryScrollController.position.context.notificationContext != null
&& Scrollable.of(primaryScrollController.position.context.notificationContext!) != null;
}
}
return false;
return focus != null && focus.context != null && Scrollable.of(focus.context!) != null;
}
// Returns the scroll increment for a single scroll request, for use when
......@@ -1070,11 +1051,7 @@ class ScrollAction extends Action<ScrollIntent> {
@override
void invoke(ScrollIntent intent) {
ScrollableState? state = Scrollable.of(primaryFocus!.context!);
if (state == null) {
final ScrollController? primaryScrollController = PrimaryScrollController.of(primaryFocus!.context!);
state = Scrollable.of(primaryScrollController!.position.context.notificationContext!);
}
final ScrollableState? state = Scrollable.of(primaryFocus!.context!);
assert(state != null, '$ScrollAction was invoked on a context that has no scrollable parent');
assert(state!.position.hasPixels, 'Scrollable must be laid out before it can be scrolled via a ScrollAction');
assert(state!.position.viewportDimension != null);
......
packages/flutter/lib/src/widgets/shortcuts.dart
View file @ 3fce16c3
......@@ -382,7 +382,7 @@ class ShortcutManager extends ChangeNotifier with Diagnosticable {
}
}
/// A widget that establishes a [ShortcutManager] to be used by its descendants
/// A widget that establishes an [ShortcutManager] to be used by its descendants
/// when invoking an [Action] via a keyboard key combination that maps to an
/// [Intent].
///
......
packages/flutter/lib/src/widgets/single_child_scroll_view.dart
View file @ 3fce16c3
......@@ -270,11 +270,6 @@ class SingleChildScrollView extends StatelessWidget {
/// Whether this is the primary scroll view associated with the parent
/// [PrimaryScrollController].
///
/// When true, the scroll view is used for default [ScrollAction]s. If a
/// ScrollAction is not handled by an otherwise focused part of the application,
/// the ScrollAction will be evaluated using this scroll view, for example,
/// when executing [Shortcuts] key events like page up and down.
///
/// On iOS, this identifies the scroll view that will scroll to top in
/// response to a tap in the status bar.
///
......
packages/flutter/test/material/app_bar_test.dart
View file @ 3fce16c3
......@@ -19,8 +19,17 @@ Widget buildSliverAppBarApp({
bool snap = false,
double toolbarHeight = kToolbarHeight,
}) {
return MaterialApp(
home: Scaffold(
return Localizations(
locale: const Locale('en', 'US'),
delegates: const <LocalizationsDelegate<dynamic>>[
DefaultMaterialLocalizations.delegate,
DefaultWidgetsLocalizations.delegate,
],
child: Directionality(
textDirection: TextDirection.ltr,
child: MediaQuery(
data: const MediaQueryData(),
child: Scaffold(
body: DefaultTabController(
length: 3,
child: CustomScrollView(
......@@ -48,6 +57,8 @@ Widget buildSliverAppBarApp({
),
),
),
),
),
);
}
......
packages/flutter/test/material/debug_test.dart
View file @ 3fce16c3
......@@ -135,7 +135,6 @@ void main() {
' _FocusMarker\n'
' Semantics\n'
' FocusScope\n'
' PrimaryScrollController\n'
' _ActionsMarker\n'
' Actions\n'
' PageStorage\n'
......
packages/flutter/test/material/scaffold_test.dart
View file @ 3fce16c3
......@@ -2128,11 +2128,12 @@ void main() {
' AnimatedBuilder\n'
' DefaultTextStyle\n'
' AnimatedDefaultTextStyle\n'
' _InkFeatures-[GlobalKey#00000 ink renderer]\n'
' _InkFeatures-[GlobalKey#342d0 ink renderer]\n'
' NotificationListener<LayoutChangedNotification>\n'
' PhysicalModel\n'
' AnimatedPhysicalModel\n'
' Material\n'
' PrimaryScrollController\n'
' _ScaffoldScope\n'
' Scaffold\n'
' MediaQuery\n'
......
packages/flutter/test/widgets/scroll_view_test.dart
View file @ 3fce16c3
......@@ -2,7 +2,6 @@
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/services.dart' show LogicalKeyboardKey;
import 'package:flutter_test/flutter_test.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter/gestures.dart' show DragStartBehavior;
......@@ -1260,48 +1259,4 @@ void main() {
semanticChildCount: 4,
), throwsAssertionError);
});
testWidgets('PrimaryScrollController provides fallback ScrollActions', (WidgetTester tester) async {
await tester.pumpWidget(
MaterialApp(
home: CustomScrollView(
primary: true,
slivers: List<Widget>.generate(
20,
(int index) {
return SliverToBoxAdapter(
child: Focus(
autofocus: index == 0,
child: SizedBox(key: ValueKey<String>('Box $index'), height: 50.0),
),
);
},
),
),
),
);
final ScrollController controller = PrimaryScrollController.of(
tester.element(find.byType(CustomScrollView))
)!;
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(0.0));
expect(
tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)),
equals(const Rect.fromLTRB(0.0, 0.0, 800.0, 50.0)),
);
await tester.sendKeyEvent(LogicalKeyboardKey.pageDown);
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(400.0));
expect(
tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)),
equals(const Rect.fromLTRB(0.0, -400.0, 800.0, -350.0)),
);
await tester.sendKeyEvent(LogicalKeyboardKey.pageUp);
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(0.0));
expect(
tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)),
equals(const Rect.fromLTRB(0.0, 0.0, 800.0, 50.0)),
);
});
}
packages/flutter/test/widgets/scrollable_test.dart
View file @ 3fce16c3
......@@ -521,19 +521,13 @@ void main() {
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(0.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 0.0, 800.0, 50.0)));
// We exclude the modifier keys here for web testing since default web shortcuts
// do not use a modifier key with arrow keys for ScrollActions.
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, -50.0, 800.0, 0.0)));
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 0.0, 800.0, 50.0)));
......@@ -543,7 +537,7 @@ void main() {
await tester.sendKeyEvent(LogicalKeyboardKey.pageUp);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 0.0, 800.0, 50.0)));
});
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/43694
testWidgets('Horizontal scrollables are scrolled when activated via keyboard.', (WidgetTester tester) async {
final ScrollController controller = ScrollController();
......@@ -573,23 +567,17 @@ void main() {
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(0.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 0.0, 50.0, 600.0)));
// We exclude the modifier keys here for web testing since default web shortcuts
// do not use a modifier key with arrow keys for ScrollActions.
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(-50.0, 0.0, 0.0, 600.0)));
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 0.0, 50.0, 600.0)));
});
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/43694
testWidgets('Horizontal scrollables are scrolled the correct direction in RTL locales.', (WidgetTester tester) async {
final ScrollController controller = ScrollController();
......@@ -622,23 +610,17 @@ void main() {
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(0.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(750.0, 0.0, 800.0, 600.0)));
// We exclude the modifier keys here for web testing since default web shortcuts
// do not use a modifier key with arrow keys for ScrollActions.
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(800.0, 0.0, 850.0, 600.0)));
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(750.0, 0.0, 800.0, 600.0)));
});
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/43694
testWidgets('Reversed vertical scrollables are scrolled when activated via keyboard.', (WidgetTester tester) async {
final ScrollController controller = ScrollController();
......@@ -670,19 +652,13 @@ void main() {
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(0.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 550.0, 800.0, 600.0)));
// We exclude the modifier keys here for web testing since default web shortcuts
// do not use a modifier key with arrow keys for ScrollActions.
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 600.0, 800.0, 650.0)));
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 550.0, 800.0, 600.0)));
......@@ -692,7 +668,7 @@ void main() {
await tester.sendKeyEvent(LogicalKeyboardKey.pageDown);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 550.0, 800.0, 600.0)));
});
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/43694
testWidgets('Reversed horizontal scrollables are scrolled when activated via keyboard.', (WidgetTester tester) async {
final ScrollController controller = ScrollController();
......@@ -725,22 +701,16 @@ void main() {
await tester.pumpAndSettle();
expect(controller.position.pixels, equals(0.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(750.0, 0.0, 800.0, 600.00)));
// We exclude the modifier keys here for web testing since default web shortcuts
// do not use a modifier key with arrow keys for ScrollActions.
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowLeft);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
expect(tester.getRect(find.byKey(const ValueKey<String>('Box 0'), skipOffstage: false)), equals(const Rect.fromLTRB(800.0, 0.0, 850.0, 600.0)));
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowRight);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
});
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/43694
testWidgets('Custom scrollables with a center sliver are scrolled when activated via keyboard.', (WidgetTester tester) async {
final ScrollController controller = ScrollController();
......@@ -777,12 +747,8 @@ void main() {
expect(controller.position.pixels, equals(0.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Item 10'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 0.0, 800.0, 100.0)));
for (int i = 0; i < 10; ++i) {
// We exclude the modifier keys here for web testing since default web shortcuts
// do not use a modifier key with arrow keys for ScrollActions.
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowDown);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
}
......@@ -790,17 +756,15 @@ void main() {
expect(controller.position.pixels, equals(400.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Item 10'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, -400.0, 800.0, -300.0)));
for (int i = 0; i < 10; ++i) {
if (!kIsWeb)
await tester.sendKeyDownEvent(modifierKey);
await tester.sendKeyEvent(LogicalKeyboardKey.arrowUp);
if (!kIsWeb)
await tester.sendKeyUpEvent(modifierKey);
await tester.pumpAndSettle();
}
// Goes up two past "center" where it started, so negative.
expect(controller.position.pixels, equals(-100.0));
expect(tester.getRect(find.byKey(const ValueKey<String>('Item 10'), skipOffstage: false)), equals(const Rect.fromLTRB(0.0, 100.0, 800.0, 200.0)));
});
}, skip: isBrowser); // https://github.com/flutter/flutter/issues/43694
testWidgets('Can recommendDeferredLoadingForContext - animation', (WidgetTester tester) async {
final List<String> widgetTracker = <String>[];
......
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