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Migrate Chips to Material 3#107166

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darrenaustin merged 1 commit intoflutter:masterfrom
darrenaustin:m3_chip
Jul 6, 2022
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Migrate Chips to Material 3#107166
darrenaustin merged 1 commit intoflutter:masterfrom
darrenaustin:m3_chip

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@darrenaustin darrenaustin commented Jul 6, 2022 •
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Part of: #91605

Updated the chip widgets ActionChip, FilterChip, ChoiceChip and InputChip with support for Material Design 3.

M3 Chip

M3 Chip dark

In order to use the chip widgets with the new Material 3 defaults, turn on the useMaterial3 flag in the ThemeData:

  return MaterialApp(
    theme: ThemeData(useMaterial3: true),
    // ...
  );

The names of some of the chips in Material Design 3 are a little different from the previous version. You can use the following to implement M3 designs:

  • Assist chip: ActionChip
  • Filter chip: FilterChip or ChoiceChip (for single selection)
  • Input chip: InputChip
  • Suggestion chip: ActionChip

Fixes: #99024

Pre-launch Checklist

  • I read the [Contributor Guide] and followed the process outlined there for submitting PRs.
  • I read the [Tree Hygiene] wiki page, which explains my responsibilities.
  • I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement].
  • I signed the [CLA].
  • I listed at least one issue that this PR fixes in the description above.
  • I updated/added relevant documentation (doc comments with ///).
  • I added new tests to check the change I am making, or this PR is [test-exempt].
  • All existing and new tests are passing.

@flutter-dashboard flutter-dashboard bot added f: material design flutter/packages/flutter/material repository. framework flutter/packages/flutter repository. See also f: labels. c: contributor-productivity Team-specific productivity, code health, technical debt. labels Jul 6, 2022
HansMuller
HansMuller approved these changes Jul 6, 2022
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LGTM

packages/flutter/lib/src/material/chip.dart
child: result,
),
);
// if (height != null) {
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@HansMuller HansMuller Jul 6, 2022

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Looks like this should be removed.

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@darrenaustin darrenaustin Jul 6, 2022

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Yup, I had deleted it, but perhaps it snuck back in with a merge I was doing.

packages/flutter/lib/src/material/chip_action.dart
const _TokenDefaultsM3(this.context, this.isEnabled)
: super(
elevation: 0.0,
shape: const RoundedRectangleBorder(borderRadius: BorderRadius.only(topLeft: Radius.circular(8.0), topRight: Radius.circular(8.0), bottomLeft: Radius.circular(8.0), bottomRight: Radius.circular(8.0))),
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Could be BorderRadius.all(Radius.circular(8))

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@darrenaustin darrenaustin Jul 6, 2022

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Yup, this is a generator problem. One that will be fixed with the BottomAppBar PR.

@darrenaustin darrenaustin merged commit f396e28 into flutter:master Jul 6, 2022
@darrenaustin darrenaustin deleted the m3_chip branch July 6, 2022 20:32
@darrenaustin darrenaustin mentioned this pull request Jul 6, 2022
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Jul 7, 2022
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f396e28 Migrate Chips to Material 3 (flutter/flutter#107166)
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/plugins that referenced this pull request Jul 7, 2022
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f396e28 Migrate Chips to Material 3 (flutter/flutter#107166)
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rydmike commented Jul 19, 2022

@darrenaustin / @HansMuller Is it on purpose that plain just Chip does not get any M3 styling when opting in on useMaterial3? It keeps the M2 style:

Screen Shot 2022-07-19 at 18 33 47

Seems a bit inconsistent that it does not default to the M3 styling as well when M3 is used. Is it on purpose or an oversight, or just not done yet? In any case, if left like this, I'm sure users will wonder about it and stumble over this inconsistency.

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darrenaustin commented Jul 19, 2022

It is more an oversight than anything else. The M3 spec doesn't describe a 'plain' chip, so i tis not obvious what "M3 styling" should apply to Flutter's generic Chip widget. That said, we could probably reuse the Assist chip defaults for the vanilla Chip widget.

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rydmike commented Jul 19, 2022

Thanks @darrenaustin, looking at M3 spec I figured that might be the background too. Using same defaults as AssistChip sounds good. Even if not mentioned in M3 spec I think it would make sense in Flutter from a design consistency viewpoint.

@TahaTesser TahaTesser mentioned this pull request Jul 27, 2022
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camsim99 pushed a commit to camsim99/flutter that referenced this pull request Aug 10, 2022
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Migrate Chips to Material 3 (flutter#107166)
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/packages that referenced this pull request Aug 30, 2022
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f396e28 Migrate Chips to Material 3 (flutter/flutter#107166)
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engine-flutter-autoroll added a commit to engine-flutter-autoroll/plugins that referenced this pull request Aug 30, 2022
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f396e28 Migrate Chips to Material 3 (flutter/flutter#107166)
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Update chips to support Material 3

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