The current URL has 2 /to, but it should only be 1. However, this url redirects to https://docs.flutter.dev/release/breaking-changes/android-java-gradle-migration-guide, so I can change it to that if it's preferred just to go to the final destination - just don't know if it's a redirect for a reason
i didn't create an issue as it's a doc change, but if that's a requirement I can do that
This PR is making the `CupertinoNavigationBar` and `CupertinoSliverNavigationBar` appear transparent as long as the content is not scrolled under them, so they look like standard iOS apps nav bars.
https://github.com/flutter/flutter/assets/423393/eee2700b-2a91-4577-922c-6163d47cb357https://github.com/flutter/flutter/assets/423393/3847f2b5-0dac-4d5e-aa6f-03c1d2893e30
<details>
<summary>Demo app code</summary>
```dart
import 'package:flutter/cupertino.dart';
/// Flutter code sample for [CupertinoTabScaffold].
void main() => runApp(const TabScaffoldApp());
class TabScaffoldApp extends StatefulWidget {
const TabScaffoldApp({super.key});
@override
State<TabScaffoldApp> createState() => _TabScaffoldAppState();
}
class _TabScaffoldAppState extends State<TabScaffoldApp> {
Brightness _brightness = Brightness.light;
@override
Widget build(BuildContext context) {
return CupertinoApp(
theme: CupertinoThemeData(brightness: _brightness),
home: TabScaffoldExample(
brightness: _brightness, onBrightnessToggle: _toggleBrightness),
);
}
void _toggleBrightness() {
setState(() {
_brightness =
_brightness == Brightness.light ? Brightness.dark : Brightness.light;
});
}
}
class TabScaffoldExample extends StatefulWidget {
const TabScaffoldExample(
{required this.brightness, required this.onBrightnessToggle, super.key});
final VoidCallback onBrightnessToggle;
final Brightness brightness;
@override
State<TabScaffoldExample> createState() => _TabScaffoldExampleState();
}
class _TabScaffoldExampleState extends State<TabScaffoldExample> {
@override
Widget build(BuildContext context) {
return CupertinoTabScaffold(
tabBar: CupertinoTabBar(
items: const <BottomNavigationBarItem>[
BottomNavigationBarItem(
icon: Icon(CupertinoIcons.home),
label: 'Home',
),
BottomNavigationBarItem(
icon: Icon(CupertinoIcons.search_circle_fill),
label: 'Explore',
),
BottomNavigationBarItem(
icon: Icon(CupertinoIcons.person_fill),
label: 'Profile',
),
BottomNavigationBarItem(
icon: Icon(CupertinoIcons.settings_solid),
label: 'Settings',
),
],
),
tabBuilder: (BuildContext context, int index) {
return CupertinoTabView(
builder: (BuildContext context) {
return CupertinoPageScaffold(
backgroundColor: index == 3
? CupertinoColors.secondarySystemBackground
.resolveFrom(context)
: null,
child: CustomScrollView(
slivers: [
CupertinoSliverNavigationBar(
largeTitle: Text('Tab $index'),
initiallyTransparent: index != 2,
trailing: CupertinoButton(
padding: EdgeInsets.zero,
onPressed: widget.onBrightnessToggle,
child: Icon(
widget.brightness == Brightness.light
? CupertinoIcons.moon_stars
: CupertinoIcons.sun_max,
),
),
),
SliverSafeArea(
top: false,
sliver: SliverList.list(
children: [
CupertinoButton(
child: const Text('Next page'),
onPressed: () {
Navigator.of(context).push(
CupertinoPageRoute<void>(
builder: (BuildContext context) {
return CupertinoPageScaffold(
navigationBar: CupertinoNavigationBar(
middle: Text('Inner page of tab $index'),
),
child: ListView(
children: [
Center(
child: CupertinoButton(
child: const Text('Back'),
onPressed: () {
Navigator.of(context).pop();
},
),
),
if (index == 0) const _LongList(),
const SizedBox(height: 20),
],
),
);
},
),
);
},
),
if (index == 1) const _LongList(),
const SizedBox(height: 20),
],
),
),
],
),
);
},
);
},
);
}
}
class _LongList extends StatelessWidget {
const _LongList();
@override
Widget build(BuildContext context) {
return Column(
children: [
for (int i = 0; i < 50; i++) ...[
CupertinoListTile(
leading: const Icon(CupertinoIcons.book),
title: Text('Bookstore item $i'),
),
],
],
);
}
}
```
</details>
This is the continuation of https://github.com/flutter/flutter/pull/142439.
I tried to keep the simplest API possible, so it's only introducing a new `automaticBackgroundVisibility` boolean parameter.
In the implementation I had to use the `CupertinoPageScaffold` background color to make it look transparent instead of a 0 opacity, because of issues with route transitions.
I used an `InheritedWidget` so the nav bar is always getting the right background color from the parent scaffold, whether it is overridden or not. It would probably be better to make the inherited widget private but we'd need to move all the nav bar code to the same file as the scaffold, so for now I've just hidden it from the export. Let me know if it is okay to do that.
This PR is not dealing with the bottom tab bar, because the same [straightforward approach](dde8ec6dc7) doesn't work here. The problem is that the scroll notification is sent only when the scroll view is created or updated, so it doesn't work if one pushes a screen and navigates back.
Issues:
- #78607
- #60411
A relatively elaborate PinnedSliverHeader example which creates an app bar that's similar to the one that appears in the iOS Settings app. In this example the pinned header starts out transparent and the first item in the list serves as the app's "Settings" title. When the title item has been scrolled completely behind the pinned header, the header animates its opacity from 0 to 1 and its (centered) "Settings" title appears. The fact that the header's opacity depends on the height of the title item - which is unknown until the list has been laid out - necessitates monitoring its SliverConstraints.scrollExtent from a scroll NotificationListener.
https://github.com/flutter/flutter/assets/1377460/539e2591-d0d7-4508-8ce8-4b8f587d7648
We are pausing our cadence of removing deprecated API from the framework until we can create a new policy.
The last couple of cycles we noticed customers having more difficult migrations, and it being harder to remove the APIs in the scheduled time period. So we need to reevaluate the policy and update it.
This is the policy working as intended. Signals like flutter/tests provide feedback on how we are affecting users - so that for folks that contributed!
Related to https://github.com/flutter/website/pull/10839
A sliver that shows its [child] when the user scrolls forward and hides it when the user scrolls backwards. Similar headers can be found in Google Photos and Facebook.
This sliver is preferable to the general purpose SliverPersistentHeader for its relatively narrow use case because there's no need to create a SliverPersistentHeaderDelegate or to predict the header's size.
https://github.com/flutter/flutter/assets/1377460/82b67dfb-5d38-4adf-9415-fc8527d0eb9f
Feat: Add withOpacity to gradient because sometimes it's required to call withOpacity directly on gradient
Resolves#150501
This adds a `withOpacity` feature to a gradient, given user has given colors this will override opacity to given opacity for them.
This PR changes the project name logic for `flutter create` to look for the name in the pubspec.yaml `name` field,
before falling back to the directory name.
Fixes https://github.com/flutter/flutter/issues/53106
*If you had to change anything in the [flutter/tests] repo, include a link to the migration guide as per the [breaking change policy].*
Some performance tests run "flutter create" to generate platform-specific project configuration files for the test app. These files may be further patched by the test script to apply settings such as the Impeller backend.
The manifests need to be deleted and recreated on each run so that settings applied by previous runs will not be used by the current run.
https://github.com/flutter/flutter/pull/150645 tries to shut down Chrome by sending a browser close command through a debug protocol. The webkit_inspection_protocol library used to send the command may throw a SocketException if Chrome has already been shut down.
`handleEventLoopCallback()` should return `true` rather than `false` when there are tasks in the queue but the highest priority task is not run because of the `schedulingStrategy`. If `false` is returned when the queue still has tasks, the event loop stops, causing existing and new tasks to never be scheduled.
For full context, see https://github.com/flutter/flutter/issues/73766#issuecomment-2202427256.
Fixes#73766 and #82016.
This changes the mapping for the Dart SDK inside Flutter from `org-dartlang-sdk:///third_party/dart/sdk` to org-dartlang-sdk:///flutter/third_party/dart/sdk`. This URI changed in https://github.com/flutter/engine/pull/51917 but was not caught by tests because they only tested a specific set of mappings and there were no integration tests checking what URIs were actually produced by a running app.
So, this change also adds an integration tests that ensures that a real running app produces URIs that are then correctly mapped.
Fixes https://github.com/Dart-Code/Dart-Code/issues/5164.
Adds a new ScrollNotificationEnd example that demonstrates how to trigger an auto-scroll based on an individual sliver's `SliverConstraints` and `SliverGeometry`.
Then new example auto-scrolls one special "aligned item" sliver to the top or bottom of the viewport, whenever it's partially visible (because it overlaps the top or bottom of the viewport). This example differs from the existing ScrollEndNotification example because the layout of the to-be aligned sliver is retrieved from its `RenderSliver` via a
GlobalKey. The new example does not rely on all of the list items having the same extent.
