Revert "Fix SnackBar clipping when it is floating due to FloatingActionButton positioning (#47616)" (#50516)
This reverts commit 801a6a7e5e2c16525d3c2856a43ed34b5ff536a3.
diff --git a/packages/flutter/lib/src/material/scaffold.dart b/packages/flutter/lib/src/material/scaffold.dart
index 75b29d5..e1f6417 100644
--- a/packages/flutter/lib/src/material/scaffold.dart
+++ b/packages/flutter/lib/src/material/scaffold.dart
@@ -547,13 +547,9 @@
if (snackBarSize == Size.zero) {
snackBarSize = layoutChild(_ScaffoldSlot.snackBar, fullWidthConstraints);
}
-
- double snackBarYOffsetBase;
- if (floatingActionButtonRect.size != Size.zero && isSnackBarFloating)
- snackBarYOffsetBase = floatingActionButtonRect.top;
- else
- snackBarYOffsetBase = contentBottom;
-
+ final double snackBarYOffsetBase = floatingActionButtonRect != null && isSnackBarFloating
+ ? floatingActionButtonRect.top
+ : contentBottom;
positionChild(_ScaffoldSlot.snackBar, Offset(0.0, snackBarYOffsetBase - snackBarSize.height));
}
diff --git a/packages/flutter/test/material/snack_bar_test.dart b/packages/flutter/test/material/snack_bar_test.dart
index f388928..04502c2 100644
--- a/packages/flutter/test/material/snack_bar_test.dart
+++ b/packages/flutter/test/material/snack_bar_test.dart
@@ -470,62 +470,58 @@
expect(snackBarBottomRight.dy - actionTextBottomRight.dy, 17.0 + 40.0); // margin + bottom padding
}, skip: isBrowser);
- testWidgets(
- 'Custom padding between SnackBar and its contents when set to SnackBarBehavior.fixed',
- (WidgetTester tester) async {
- await tester.pumpWidget(MaterialApp(
- home: MediaQuery(
- data: const MediaQueryData(
- padding: EdgeInsets.only(
- left: 10.0,
- top: 20.0,
- right: 30.0,
- bottom: 40.0,
- ),
- ),
- child: Scaffold(
- bottomNavigationBar: BottomNavigationBar(
- items: const <BottomNavigationBarItem>[
- BottomNavigationBarItem(icon: Icon(Icons.favorite), title: Text('Animutation')),
- BottomNavigationBarItem(icon: Icon(Icons.block), title: Text('Zombo.com')),
- ],
- ),
- body: Builder(
- builder: (BuildContext context) {
- return GestureDetector(
- onTap: () {
- Scaffold.of(context).showSnackBar(SnackBar(
- content: const Text('I am a snack bar.'),
- duration: const Duration(seconds: 2),
- action: SnackBarAction(label: 'ACTION', onPressed: () {}),
- ));
- },
- child: const Text('X'),
- );
- }
- ),
+ testWidgets('SnackBar is positioned above BottomNavigationBar', (WidgetTester tester) async {
+ await tester.pumpWidget(MaterialApp(
+ home: MediaQuery(
+ data: const MediaQueryData(
+ padding: EdgeInsets.only(
+ left: 10.0,
+ top: 20.0,
+ right: 30.0,
+ bottom: 40.0,
),
),
- ));
- await tester.tap(find.text('X'));
- await tester.pump(); // start animation
- await tester.pump(const Duration(milliseconds: 750)); // Animation last frame.
+ child: Scaffold(
+ bottomNavigationBar: BottomNavigationBar(
+ items: const <BottomNavigationBarItem>[
+ BottomNavigationBarItem(icon: Icon(Icons.favorite), title: Text('Animutation')),
+ BottomNavigationBarItem(icon: Icon(Icons.block), title: Text('Zombo.com')),
+ ],
+ ),
+ body: Builder(
+ builder: (BuildContext context) {
+ return GestureDetector(
+ onTap: () {
+ Scaffold.of(context).showSnackBar(SnackBar(
+ content: const Text('I am a snack bar.'),
+ duration: const Duration(seconds: 2),
+ action: SnackBarAction(label: 'ACTION', onPressed: () { }),
+ ));
+ },
+ child: const Text('X'),
+ );
+ }
+ ),
+ ),
+ ),
+ ));
+ await tester.tap(find.text('X'));
+ await tester.pump(); // start animation
+ await tester.pump(const Duration(milliseconds: 750)); // Animation last frame.
- final Offset textBottomLeft = tester.getBottomLeft(find.text('I am a snack bar.'));
- final Offset textBottomRight = tester.getBottomRight(find.text('I am a snack bar.'));
- final Offset actionTextBottomLeft = tester.getBottomLeft(find.text('ACTION'));
- final Offset actionTextBottomRight = tester.getBottomRight(find.text('ACTION'));
- final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
+ final Offset textBottomLeft = tester.getBottomLeft(find.text('I am a snack bar.'));
+ final Offset textBottomRight = tester.getBottomRight(find.text('I am a snack bar.'));
+ final Offset actionTextBottomLeft = tester.getBottomLeft(find.text('ACTION'));
+ final Offset actionTextBottomRight = tester.getBottomRight(find.text('ACTION'));
+ final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
+ final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
- expect(textBottomLeft.dx - snackBarBottomLeft.dx, 24.0 + 10.0); // margin + left padding
- expect(snackBarBottomLeft.dy - textBottomLeft.dy, 17.0); // margin (with no bottom padding)
- expect(actionTextBottomLeft.dx - textBottomRight.dx, 24.0);
- expect(snackBarBottomRight.dx - actionTextBottomRight.dx, 24.0 + 30.0); // margin + right padding
- expect(snackBarBottomRight.dy - actionTextBottomRight.dy, 17.0); // margin (with no bottom padding)
- },
- skip: isBrowser,
- );
+ expect(textBottomLeft.dx - snackBarBottomLeft.dx, 24.0 + 10.0); // margin + left padding
+ expect(snackBarBottomLeft.dy - textBottomLeft.dy, 17.0); // margin (with no bottom padding)
+ expect(actionTextBottomLeft.dx - textBottomRight.dx, 24.0);
+ expect(snackBarBottomRight.dx - actionTextBottomRight.dx, 24.0 + 30.0); // margin + right padding
+ expect(snackBarBottomRight.dy - actionTextBottomRight.dy, 17.0); // margin (with no bottom padding)
+ }, skip: isBrowser);
testWidgets('SnackBar should push FloatingActionButton above', (WidgetTester tester) async {
await tester.pumpWidget(MaterialApp(
@@ -561,25 +557,17 @@
),
));
- // Get the Rect of the FAB to compare after the SnackBar appears.
- final Rect originalFabRect = tester.getRect(find.byType(FloatingActionButton));
+ final Offset floatingActionButtonOriginBottomCenter = tester.getCenter(find.byType(FloatingActionButton));
await tester.tap(find.text('X'));
await tester.pump(); // start animation
await tester.pump(const Duration(milliseconds: 750)); // Animation last frame.
- final Rect fabRect = tester.getRect(find.byType(FloatingActionButton));
+ final Offset snackBarTopCenter = tester.getCenter(find.byType(SnackBar));
+ final Offset floatingActionButtonBottomCenter = tester.getCenter(find.byType(FloatingActionButton));
- // FAB should shift upwards after SnackBar appears.
- expect(fabRect.center.dy, lessThan(originalFabRect.center.dy));
-
- final Offset snackBarTopRight = tester.getTopRight(find.byType(SnackBar));
-
- // FAB's surrounding padding is set to [kFloatingActionButtonMargin] in floating_action_button_location.dart by default.
- const int defaultFabPadding = 16;
-
- // FAB should be positioned above the SnackBar by the default padding.
- expect(fabRect.bottomRight.dy, snackBarTopRight.dy - defaultFabPadding);
+ expect(floatingActionButtonOriginBottomCenter.dy > floatingActionButtonBottomCenter.dy, true);
+ expect(snackBarTopCenter.dy > floatingActionButtonBottomCenter.dy, true);
});
testWidgets('Floating SnackBar button text alignment', (WidgetTester tester) async {
@@ -632,65 +620,164 @@
expect(snackBarBottomRight.dy - actionTextBottomRight.dy, 27.0); // margin (with no bottom padding)
}, skip: isBrowser);
- testWidgets(
- 'Custom padding between SnackBar and its contents when set to SnackBarBehavior.floating',
- (WidgetTester tester) async {
- await tester.pumpWidget(MaterialApp(
- theme: ThemeData(
- snackBarTheme: const SnackBarThemeData(behavior: SnackBarBehavior.floating)
- ),
- home: MediaQuery(
- data: const MediaQueryData(
- padding: EdgeInsets.only(
- left: 10.0,
- top: 20.0,
- right: 30.0,
- bottom: 40.0,
- ),
- ),
- child: Scaffold(
- bottomNavigationBar: BottomNavigationBar(
- items: const <BottomNavigationBarItem>[
- BottomNavigationBarItem(icon: Icon(Icons.favorite), title: Text('Animutation')),
- BottomNavigationBarItem(icon: Icon(Icons.block), title: Text('Zombo.com')),
- ],
- ),
- body: Builder(
- builder: (BuildContext context) {
- return GestureDetector(
- onTap: () {
- Scaffold.of(context).showSnackBar(SnackBar(
- content: const Text('I am a snack bar.'),
- duration: const Duration(seconds: 2),
- action: SnackBarAction(label: 'ACTION', onPressed: () {}),
- ));
- },
- child: const Text('X'),
- );
- }
- ),
+ testWidgets('Floating SnackBar is positioned above BottomNavigationBar', (WidgetTester tester) async {
+ await tester.pumpWidget(MaterialApp(
+ theme: ThemeData(
+ snackBarTheme: const SnackBarThemeData(behavior: SnackBarBehavior.floating,)
+ ),
+ home: MediaQuery(
+ data: const MediaQueryData(
+ padding: EdgeInsets.only(
+ left: 10.0,
+ top: 20.0,
+ right: 30.0,
+ bottom: 40.0,
),
),
- ));
- await tester.tap(find.text('X'));
- await tester.pump(); // start animation
- await tester.pump(const Duration(milliseconds: 750)); // Animation last frame.
+ child: Scaffold(
+ bottomNavigationBar: BottomNavigationBar(
+ items: const <BottomNavigationBarItem>[
+ BottomNavigationBarItem(icon: Icon(Icons.favorite), title: Text('Animutation')),
+ BottomNavigationBarItem(icon: Icon(Icons.block), title: Text('Zombo.com')),
+ ],
+ ),
+ body: Builder(
+ builder: (BuildContext context) {
+ return GestureDetector(
+ onTap: () {
+ Scaffold.of(context).showSnackBar(SnackBar(
+ content: const Text('I am a snack bar.'),
+ duration: const Duration(seconds: 2),
+ action: SnackBarAction(label: 'ACTION', onPressed: () {}),
+ ));
+ },
+ child: const Text('X'),
+ );
+ }
+ ),
+ ),
+ ),
+ ));
+ await tester.tap(find.text('X'));
+ await tester.pump(); // start animation
+ await tester.pump(const Duration(milliseconds: 750)); // Animation last frame.
- final Offset textBottomLeft = tester.getBottomLeft(find.text('I am a snack bar.'));
- final Offset textBottomRight = tester.getBottomRight(find.text('I am a snack bar.'));
- final Offset actionTextBottomLeft = tester.getBottomLeft(find.text('ACTION'));
- final Offset actionTextBottomRight = tester.getBottomRight(find.text('ACTION'));
- final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
+ final Offset textBottomLeft = tester.getBottomLeft(find.text('I am a snack bar.'));
+ final Offset textBottomRight = tester.getBottomRight(find.text('I am a snack bar.'));
+ final Offset actionTextBottomLeft = tester.getBottomLeft(find.text('ACTION'));
+ final Offset actionTextBottomRight = tester.getBottomRight(find.text('ACTION'));
+ final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
+ final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
- expect(textBottomLeft.dx - snackBarBottomLeft.dx, 31.0 + 10.0); // margin + left padding
- expect(snackBarBottomLeft.dy - textBottomLeft.dy, 27.0); // margin (with no bottom padding)
- expect(actionTextBottomLeft.dx - textBottomRight.dx, 16.0);
- expect(snackBarBottomRight.dx - actionTextBottomRight.dx, 31.0 + 30.0); // margin + right padding
- expect(snackBarBottomRight.dy - actionTextBottomRight.dy, 27.0); // margin (with no bottom padding)
- },
- skip: isBrowser,
- );
+ expect(textBottomLeft.dx - snackBarBottomLeft.dx, 31.0 + 10.0); // margin + left padding
+ expect(snackBarBottomLeft.dy - textBottomLeft.dy, 27.0); // margin (with no bottom padding)
+ expect(actionTextBottomLeft.dx - textBottomRight.dx, 16.0);
+ expect(snackBarBottomRight.dx - actionTextBottomRight.dx, 31.0 + 30.0); // margin + right padding
+ expect(snackBarBottomRight.dy - actionTextBottomRight.dy, 27.0); // margin (with no bottom padding)
+ }, skip: isBrowser);
+
+ testWidgets('Floating SnackBar is positioned above FloatingActionButton', (WidgetTester tester) async {
+ await tester.pumpWidget(MaterialApp(
+ theme: ThemeData(
+ snackBarTheme: const SnackBarThemeData(behavior: SnackBarBehavior.floating,)
+ ),
+ home: MediaQuery(
+ data: const MediaQueryData(
+ padding: EdgeInsets.only(
+ left: 10.0,
+ top: 20.0,
+ right: 30.0,
+ bottom: 40.0,
+ ),
+ ),
+ child: Scaffold(
+ floatingActionButton: FloatingActionButton(
+ child: const Icon(Icons.send),
+ onPressed: () {},
+ ),
+ body: Builder(
+ builder: (BuildContext context) {
+ return GestureDetector(
+ onTap: () {
+ Scaffold.of(context).showSnackBar(SnackBar(
+ content: const Text('I am a snack bar.'),
+ duration: const Duration(seconds: 2),
+ action: SnackBarAction(label: 'ACTION', onPressed: () {}),
+ ));
+ },
+ child: const Text('X'),
+ );
+ }
+ ),
+ ),
+ ),
+ ));
+ await tester.tap(find.text('X'));
+ await tester.pump(); // start animation
+ await tester.pump(const Duration(milliseconds: 750)); // Animation last frame.
+
+ final Offset snackBarBottomCenter = tester.getBottomLeft(find.byType(SnackBar));
+ final Offset floatingActionButtonTopCenter = tester.getTopLeft(find.byType(FloatingActionButton));
+
+ // Since padding and margin is handled inside snackBarBox,
+ // the bottom offset of snackbar should equal with top offset of FAB
+ expect(snackBarBottomCenter.dy == floatingActionButtonTopCenter.dy, true);
+ });
+
+ testWidgets('SnackBar bottom padding is not consumed by viewInsets', (WidgetTester tester) async {
+ final Widget child = Directionality(
+ textDirection: TextDirection.ltr,
+ child: Scaffold(
+ resizeToAvoidBottomInset: false,
+ floatingActionButton: FloatingActionButton(
+ child: const Icon(Icons.send),
+ onPressed: () {},
+ ),
+ body: Builder(
+ builder: (BuildContext context) {
+ return GestureDetector(
+ onTap: () {
+ Scaffold.of(context).showSnackBar(
+ SnackBar(
+ content: const Text('I am a snack bar.'),
+ duration: const Duration(seconds: 2),
+ action: SnackBarAction(label: 'ACTION', onPressed: () {}),
+ ),
+ );
+ },
+ child: const Text('X'),
+ );
+ }
+ ),
+ ));
+
+ await tester.pumpWidget(
+ MediaQuery(
+ data: const MediaQueryData(
+ padding: EdgeInsets.only(bottom: 20.0),
+ ),
+ child: child,
+ ),
+ );
+ await tester.tap(find.text('X'));
+ await tester.pumpAndSettle(); // Show snackbar
+ final Offset initialPoint = tester.getCenter(find.byType(SnackBar));
+ // Consume bottom padding - as if by the keyboard opening
+ await tester.pumpWidget(
+ MediaQuery(
+ data: const MediaQueryData(
+ padding: EdgeInsets.zero,
+ viewPadding: EdgeInsets.only(bottom: 20),
+ viewInsets: EdgeInsets.only(bottom: 300),
+ ),
+ child: child,
+ ),
+ );
+ await tester.tap(find.text('X'));
+ await tester.pumpAndSettle();
+ final Offset finalPoint = tester.getCenter(find.byType(SnackBar));
+ expect(initialPoint, finalPoint);
+ });
testWidgets('SnackBarClosedReason', (WidgetTester tester) async {
final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();
@@ -1059,283 +1146,4 @@
expect(find.text('hello'), findsOneWidget);
expect(called, 1);
});
-
- group('SnackBar position', () {
- for (final SnackBarBehavior behavior in SnackBarBehavior.values) {
- final SnackBar snackBar = SnackBar(
- content: const Text('SnackBar text'),
- behavior: behavior,
- );
-
- testWidgets(
- '$behavior should align SnackBar with the bottom of Scaffold '
- 'when Scaffold has no other elements',
- (WidgetTester tester) async {
- await tester.pumpWidget(
- MaterialApp(
- home: Scaffold(
- body: Container(),
- ),
- ),
- );
-
- final ScaffoldState scaffoldState = tester.state(find.byType(Scaffold));
- scaffoldState.showSnackBar(snackBar);
-
- await tester.pumpAndSettle(); // Have the SnackBar fully animate out.
-
- final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
- final Offset scaffoldBottomRight = tester.getBottomRight(find.byType(Scaffold));
-
- expect(snackBarBottomRight, equals(scaffoldBottomRight));
-
- final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset scaffoldBottomLeft = tester.getBottomLeft(find.byType(Scaffold));
-
- expect(snackBarBottomLeft, equals(scaffoldBottomLeft));
- },
- );
-
- testWidgets(
- '$behavior should align SnackBar with the top of BottomNavigationBar '
- 'when Scaffold has no FloatingActionButton',
- (WidgetTester tester) async {
- final UniqueKey boxKey = UniqueKey();
- await tester.pumpWidget(
- MaterialApp(
- home: Scaffold(
- body: Container(),
- bottomNavigationBar: SizedBox(key: boxKey, width: 800, height: 60),
- ),
- ),
- );
-
- final ScaffoldState scaffoldState = tester.state(find.byType(Scaffold));
- scaffoldState.showSnackBar(snackBar);
-
- await tester.pumpAndSettle(); // Have the SnackBar fully animate out.
-
- final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
- final Offset bottomNavigationBarTopRight = tester.getTopRight(find.byKey(boxKey));
-
- expect(snackBarBottomRight, equals(bottomNavigationBarTopRight));
-
- final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset bottomNavigationBarTopLeft = tester.getTopLeft(find.byKey(boxKey));
-
- expect(snackBarBottomLeft, equals(bottomNavigationBarTopLeft));
- },
- );
-
- testWidgets(
- 'Padding of $behavior is not consumed by viewInsets',
- (WidgetTester tester) async {
- final Widget child = Directionality(
- textDirection: TextDirection.ltr,
- child: Scaffold(
- resizeToAvoidBottomInset: false,
- floatingActionButton: FloatingActionButton(
- child: const Icon(Icons.send),
- onPressed: () {},
- ),
- body: Builder(
- builder: (BuildContext context) {
- return GestureDetector(
- onTap: () {
- Scaffold.of(context).showSnackBar(
- SnackBar(
- content: const Text('I am a snack bar.'),
- duration: const Duration(seconds: 2),
- action: SnackBarAction(label: 'ACTION', onPressed: () {}),
- behavior: behavior,
- ),
- );
- },
- child: const Text('X'),
- );
- },
- ),
- ),
- );
-
- await tester.pumpWidget(
- MediaQuery(
- data: const MediaQueryData(
- padding: EdgeInsets.only(bottom: 20.0),
- ),
- child: child,
- ),
- );
- await tester.tap(find.text('X'));
- await tester.pumpAndSettle(); // Show snackbar
- final Offset initialBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset initialBottomRight = tester.getBottomRight(find.byType(SnackBar));
- // Consume bottom padding - as if by the keyboard opening
- await tester.pumpWidget(
- MediaQuery(
- data: const MediaQueryData(
- padding: EdgeInsets.zero,
- viewPadding: EdgeInsets.all(20),
- viewInsets: EdgeInsets.all(100),
- ),
- child: child,
- ),
- );
- await tester.tap(find.text('X'));
- await tester.pumpAndSettle(); // Have the SnackBar fully animate out.
-
- final Offset finalBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset finalBottomRight = tester.getBottomRight(find.byType(SnackBar));
-
- expect(initialBottomLeft, finalBottomLeft);
- expect(initialBottomRight, finalBottomRight);
- },
- );
- }
-
- testWidgets(
- '${SnackBarBehavior.fixed} should align SnackBar with the bottom of Scaffold '
- 'when Scaffold has a FloatingActionButton',
- (WidgetTester tester) async {
- await tester.pumpWidget(
- MaterialApp(
- home: Scaffold(
- body: Container(),
- floatingActionButton: FloatingActionButton(onPressed: () {}),
- ),
- ),
- );
-
- final ScaffoldState scaffoldState = tester.state(find.byType(Scaffold));
- scaffoldState.showSnackBar(
- const SnackBar(
- content: Text('Snackbar text'),
- behavior: SnackBarBehavior.fixed,
- ),
- );
-
- await tester.pumpAndSettle(); // Have the SnackBar fully animate out.
-
- final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
- final Offset scaffoldBottomRight = tester.getBottomRight(find.byType(Scaffold));
-
- expect(snackBarBottomRight, equals(scaffoldBottomRight));
-
- final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset scaffoldBottomLeft = tester.getBottomLeft(find.byType(Scaffold));
-
- expect(snackBarBottomLeft, equals(scaffoldBottomLeft));
- },
- );
-
- testWidgets(
- '${SnackBarBehavior.floating} should align SnackBar with the top of FloatingActionButton'
- 'when Scaffold has a FloatingActionButton',
- (WidgetTester tester) async {
- await tester.pumpWidget(MaterialApp(
- home: Scaffold(
- floatingActionButton: FloatingActionButton(
- child: const Icon(Icons.send),
- onPressed: () {},
- ),
- body: Builder(
- builder: (BuildContext context) {
- return GestureDetector(
- onTap: () {
- Scaffold.of(context).showSnackBar(SnackBar(
- content: const Text('I am a snack bar.'),
- duration: const Duration(seconds: 2),
- action: SnackBarAction(label: 'ACTION', onPressed: () {}),
- behavior: SnackBarBehavior.floating,
- ));
- },
- child: const Text('X'),
- );
- },
- ),
- ),
- ));
- await tester.tap(find.text('X'));
- await tester.pumpAndSettle(); // Have the SnackBar fully animate out.
-
- final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset floatingActionButtonTopLeft = tester.getTopLeft(
- find.byType(FloatingActionButton),
- );
-
- // Since padding between the SnackBar and the FAB is created by the SnackBar,
- // the bottom offset of the SnackBar should be equal to the top offset of the FAB
- expect(snackBarBottomLeft.dy, floatingActionButtonTopLeft.dy);
- },
- );
-
- testWidgets(
- '${SnackBarBehavior.fixed} should align SnackBar with the top of BottomNavigationBar '
- 'when Scaffold has a BottomNavigationBar and FloatingActionButton',
- (WidgetTester tester) async {
- final UniqueKey boxKey = UniqueKey();
- await tester.pumpWidget(
- MaterialApp(
- home: Scaffold(
- body: Container(),
- bottomNavigationBar: SizedBox(key: boxKey, width: 800, height: 60),
- floatingActionButton: FloatingActionButton(onPressed: () {}),
- ),
- ),
- );
-
- final ScaffoldState scaffoldState = tester.state(find.byType(Scaffold));
- scaffoldState.showSnackBar(
- const SnackBar(
- content: Text('SnackBar text'),
- behavior: SnackBarBehavior.fixed,
- ),
- );
-
- await tester.pumpAndSettle(); // Have the SnackBar fully animate out.
-
- final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
- final Offset bottomNavigationBarTopRight = tester.getTopRight(find.byKey(boxKey));
-
- expect(snackBarBottomRight, equals(bottomNavigationBarTopRight));
-
- final Offset snackBarBottomLeft = tester.getBottomLeft(find.byType(SnackBar));
- final Offset bottomNavigationBarTopLeft = tester.getTopLeft(find.byKey(boxKey));
-
- expect(snackBarBottomLeft, equals(bottomNavigationBarTopLeft));
- },
- );
-
- testWidgets(
- '${SnackBarBehavior.floating} should align SnackBar with the top of FloatingActionButton '
- 'when Scaffold has BottomNavigationBar and FloatingActionButton',
- (WidgetTester tester) async {
- final UniqueKey boxKey = UniqueKey();
- await tester.pumpWidget(
- MaterialApp(
- home: Scaffold(
- body: Container(),
- bottomNavigationBar: SizedBox(key: boxKey, width: 800, height: 60),
- floatingActionButton: FloatingActionButton(onPressed: () {}),
- ),
- ),
- );
-
- final ScaffoldState scaffoldState = tester.state(find.byType(Scaffold));
- scaffoldState.showSnackBar(
- const SnackBar(
- content: Text('SnackBar text'),
- behavior: SnackBarBehavior.floating,
- ),
- );
-
- await tester.pumpAndSettle(); // Have the SnackBar fully animate out.
-
- final Offset snackBarBottomRight = tester.getBottomRight(find.byType(SnackBar));
- final Offset fabTopRight = tester.getTopRight(find.byType(FloatingActionButton));
-
- expect(snackBarBottomRight.dy, equals(fabTopRight.dy));
- },
- );
- });
}
