CupertinoPicker new onChanged behaviour
#170202
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I might try to also make these changes for CupertinoDatePicker depending on how this one goes. |
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@MitchellGoodwin am I understanding correctly that you are ok with landing this as-is and breaking in a later PR? |
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LGTM with one nit. Thank you for the change!
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Yup! |
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Roll Flutter from 8303a96a0a99 to 85a9b4f38906 (93 revisions) flutter/flutter@8303a96...85a9b4f 2025-06-19 [email protected] Roll Skia from af242598f14d to 794936b23812 (2 revisions) (flutter/flutter#170875) 2025-06-19 [email protected] Drop support for 21/22 Lollipop (flutter/flutter#170748) 2025-06-19 [email protected] Roll Dart SDK from 6020126c10e8 to bce9abe03175 (1 revision) (flutter/flutter#170872) 2025-06-19 [email protected] Roll Skia from df97f7f407db to af242598f14d (4 revisions) (flutter/flutter#170867) 2025-06-19 [email protected] Roll Skia from 1d8f7ebd23cc to df97f7f407db (5 revisions) (flutter/flutter#170864) 2025-06-19 [email protected] Roll Dart SDK from 4ab716b09e9d to 6020126c10e8 (1 revision) (flutter/flutter#170862) 2025-06-19 [email protected] Roll Skia from 291d41414fa7 to 1d8f7ebd23cc (2 revisions) (flutter/flutter#170857) 2025-06-19 [email protected] Roll Dart SDK from b32559bca3cc to 4ab716b09e9d (9 revisions) (flutter/flutter#170855) 2025-06-19 [email protected] remove --start-paused flag by default and set useDwdsWebSocketConnect… (flutter/flutter#170612) 2025-06-18 [email protected] Engine builders no longer require `is_fusion` (flutter/flutter#170849) 2025-06-18 [email protected] Roll Skia from 5f110d5f48a3 to 291d41414fa7 (2 revisions) (flutter/flutter#170836) 2025-06-18 [email protected] Use a shared vertex buffer for rendering layers. (flutter/flutter#170717) 2025-06-18 [email protected] fixes deeplinking in uiscenedelegate migrated projects (flutter/flutter#170452) 2025-06-18 [email protected] [Impeller] fix array uniforms on GLES backend. (flutter/flutter#170710) 2025-06-18 [email protected] [Impeller] Update README to add section about custom embedders. (flutter/flutter#170077) 2025-06-18 [email protected] Escape the forbidden strings in the regex used to check test command output (flutter/flutter#170702) 2025-06-18 [email protected] License cpp jun16 (flutter/flutter#170716) 2025-06-18 [email protected] Work around newer compilers requiring the satisfaction of three-way comparison of EncodableValue. (flutter/flutter#170822) 2025-06-18 [email protected] Update didUnmountRenderObject text description (flutter/flutter#169628) 2025-06-18 [email protected] Roll Skia from 297dbc32a6c7 to 5f110d5f48a3 (2 revisions) (flutter/flutter#170821) 2025-06-18 [email protected] Add an initial "Using feature flags" doc for the team. (flutter/flutter#170767) 2025-06-18 [email protected] Feat: Add mouse cursor for CupertinoDialogAction (flutter/flutter#169051) 2025-06-18 [email protected] Update `Engine-artifacts.md` to reflect flutter/cocoon/4785 (flutter/flutter#170751) 2025-06-18 [email protected] `CupertinoPicker` new onChanged behaviour (flutter/flutter#170202) 2025-06-18 [email protected] Rename `entryPointBaseUrl` to `entrypointBaseUrl` (flutter/flutter#170166) 2025-06-18 [email protected] Roll Skia from 1cb13a21b547 to 297dbc32a6c7 (4 revisions) (flutter/flutter#170809) 2025-06-18 [email protected] Roll Packages from 25d4fa4 to 715a0a5 (2 revisions) (flutter/flutter#170808) 2025-06-18 [email protected] Roll Skia from 0a106c038cd0 to 1cb13a21b547 (1 revision) (flutter/flutter#170801) 2025-06-18 [email protected] Add `--profile-microtasks` switch (flutter/flutter#170690) 2025-06-18 [email protected] Roll Skia from ff7fffa5dac5 to 0a106c038cd0 (3 revisions) (flutter/flutter#170795) 2025-06-18 [email protected] Add example for CupertinoExpansionTile transition modes (flutter/flutter#170335) 2025-06-18 [email protected] feat: Add radius to DividerThemeData. (flutter/flutter#169739) 2025-06-18 [email protected] Roll Skia from 75af9450b121 to ff7fffa5dac5 (3 revisions) (flutter/flutter#170772) 2025-06-17 98614782+auto-submit[bot]@users.noreply.github.com Reverts "add run_gradle_lock_files_check.dart for new PR's that modify gradle files (#169245)" (flutter/flutter#170770) 2025-06-17 [email protected] Started bridging the scene delegate to the lifecycle delegate for shortcuts (flutter/flutter#170180) 2025-06-17 [email protected] [ui] npot display_list allocation. (flutter/flutter#170447) 2025-06-17 [email protected] Prefer .of over .from (flutter/flutter#170750) 2025-06-17 [email protected] Fix RawGestureDetector semantics (flutter/flutter#170549) 2025-06-17 [email protected] Use correct type for filterIdentifier (flutter/flutter#170343) 2025-06-17 [email protected] Remove and inline `license_header.txt` (flutter/flutter#170475) 2025-06-17 [email protected] add run_gradle_lock_files_check.dart for new PR's that modify gradle files (flutter/flutter#169245) 2025-06-17 [email protected] Roll Dart SDK from 4fad61257b29 to b32559bca3cc (3 revisions) (flutter/flutter#170746) 2025-06-17 [email protected] [release] Sync stable changelog to master (flutter/flutter#170691) 2025-06-17 [email protected] Roll Packages from 03a6abb to 25d4fa4 (5 revisions) (flutter/flutter#170743) 2025-06-17 [email protected] [ Widget Preview ] Remove support for synthetic package:flutter_gen (flutter/flutter#170602) 2025-06-17 [email protected] Roll Skia from 8879db3b3319 to 75af9450b121 (4 revisions) (flutter/flutter#170739) ...
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…r#9457) Roll Flutter from 8303a96a0a99 to 85a9b4f38906 (93 revisions) flutter/flutter@8303a96...85a9b4f 2025-06-19 [email protected] Roll Skia from af242598f14d to 794936b23812 (2 revisions) (flutter/flutter#170875) 2025-06-19 [email protected] Drop support for 21/22 Lollipop (flutter/flutter#170748) 2025-06-19 [email protected] Roll Dart SDK from 6020126c10e8 to bce9abe03175 (1 revision) (flutter/flutter#170872) 2025-06-19 [email protected] Roll Skia from df97f7f407db to af242598f14d (4 revisions) (flutter/flutter#170867) 2025-06-19 [email protected] Roll Skia from 1d8f7ebd23cc to df97f7f407db (5 revisions) (flutter/flutter#170864) 2025-06-19 [email protected] Roll Dart SDK from 4ab716b09e9d to 6020126c10e8 (1 revision) (flutter/flutter#170862) 2025-06-19 [email protected] Roll Skia from 291d41414fa7 to 1d8f7ebd23cc (2 revisions) (flutter/flutter#170857) 2025-06-19 [email protected] Roll Dart SDK from b32559bca3cc to 4ab716b09e9d (9 revisions) (flutter/flutter#170855) 2025-06-19 [email protected] remove --start-paused flag by default and set useDwdsWebSocketConnect… (flutter/flutter#170612) 2025-06-18 [email protected] Engine builders no longer require `is_fusion` (flutter/flutter#170849) 2025-06-18 [email protected] Roll Skia from 5f110d5f48a3 to 291d41414fa7 (2 revisions) (flutter/flutter#170836) 2025-06-18 [email protected] Use a shared vertex buffer for rendering layers. (flutter/flutter#170717) 2025-06-18 [email protected] fixes deeplinking in uiscenedelegate migrated projects (flutter/flutter#170452) 2025-06-18 [email protected] [Impeller] fix array uniforms on GLES backend. (flutter/flutter#170710) 2025-06-18 [email protected] [Impeller] Update README to add section about custom embedders. (flutter/flutter#170077) 2025-06-18 [email protected] Escape the forbidden strings in the regex used to check test command output (flutter/flutter#170702) 2025-06-18 [email protected] License cpp jun16 (flutter/flutter#170716) 2025-06-18 [email protected] Work around newer compilers requiring the satisfaction of three-way comparison of EncodableValue. (flutter/flutter#170822) 2025-06-18 [email protected] Update didUnmountRenderObject text description (flutter/flutter#169628) 2025-06-18 [email protected] Roll Skia from 297dbc32a6c7 to 5f110d5f48a3 (2 revisions) (flutter/flutter#170821) 2025-06-18 [email protected] Add an initial "Using feature flags" doc for the team. (flutter/flutter#170767) 2025-06-18 [email protected] Feat: Add mouse cursor for CupertinoDialogAction (flutter/flutter#169051) 2025-06-18 [email protected] Update `Engine-artifacts.md` to reflect flutter/cocoon/4785 (flutter/flutter#170751) 2025-06-18 [email protected] `CupertinoPicker` new onChanged behaviour (flutter/flutter#170202) 2025-06-18 [email protected] Rename `entryPointBaseUrl` to `entrypointBaseUrl` (flutter/flutter#170166) 2025-06-18 [email protected] Roll Skia from 1cb13a21b547 to 297dbc32a6c7 (4 revisions) (flutter/flutter#170809) 2025-06-18 [email protected] Roll Packages from 25d4fa4 to 715a0a5 (2 revisions) (flutter/flutter#170808) 2025-06-18 [email protected] Roll Skia from 0a106c038cd0 to 1cb13a21b547 (1 revision) (flutter/flutter#170801) 2025-06-18 [email protected] Add `--profile-microtasks` switch (flutter/flutter#170690) 2025-06-18 [email protected] Roll Skia from ff7fffa5dac5 to 0a106c038cd0 (3 revisions) (flutter/flutter#170795) 2025-06-18 [email protected] Add example for CupertinoExpansionTile transition modes (flutter/flutter#170335) 2025-06-18 [email protected] feat: Add radius to DividerThemeData. (flutter/flutter#169739) 2025-06-18 [email protected] Roll Skia from 75af9450b121 to ff7fffa5dac5 (3 revisions) (flutter/flutter#170772) 2025-06-17 98614782+auto-submit[bot]@users.noreply.github.com Reverts "add run_gradle_lock_files_check.dart for new PR's that modify gradle files (#169245)" (flutter/flutter#170770) 2025-06-17 [email protected] Started bridging the scene delegate to the lifecycle delegate for shortcuts (flutter/flutter#170180) 2025-06-17 [email protected] [ui] npot display_list allocation. (flutter/flutter#170447) 2025-06-17 [email protected] Prefer .of over .from (flutter/flutter#170750) 2025-06-17 [email protected] Fix RawGestureDetector semantics (flutter/flutter#170549) 2025-06-17 [email protected] Use correct type for filterIdentifier (flutter/flutter#170343) 2025-06-17 [email protected] Remove and inline `license_header.txt` (flutter/flutter#170475) 2025-06-17 [email protected] add run_gradle_lock_files_check.dart for new PR's that modify gradle files (flutter/flutter#169245) 2025-06-17 [email protected] Roll Dart SDK from 4fad61257b29 to b32559bca3cc (3 revisions) (flutter/flutter#170746) 2025-06-17 [email protected] [release] Sync stable changelog to master (flutter/flutter#170691) 2025-06-17 [email protected] Roll Packages from 03a6abb to 25d4fa4 (5 revisions) (flutter/flutter#170743) 2025-06-17 [email protected] [ Widget Preview ] Remove support for synthetic package:flutter_gen (flutter/flutter#170602) 2025-06-17 [email protected] Roll Skia from 8879db3b3319 to 75af9450b121 (4 revisions) (flutter/flutter#170739) ...
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This PR updates the docs after the changes introduced in #170202. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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…or (#170793) This PR adds the new `changeReportingBehavior` parameter to `CupertinoDatePicker` and `CupertinoTimerPicker`. Continuation of #170202 Fixes #92644 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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This PR adds a new behaviour to `ListWheelScrollView` that allows to switch between reporting changes on scroll update or only on scroll end. `CupertinoPicker` now has a `changeReportingBehavior` param that forwards to `ListWheelScrollView`. New behaviour is a breaking change if set as default, so I have added the `changeReportingBehavior` param to opt-in. My idea is that it can be marked as `Deprecated` immediately and then removed from `CupertinoPicker` later or we can just leave the param there and make it more customizable. I am open to other ideas on how to land this without breaking clients. Fixes flutter#170201 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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This PR updates the docs after the changes introduced in flutter#170202. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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…or (flutter#170793) This PR adds the new `changeReportingBehavior` parameter to `CupertinoDatePicker` and `CupertinoTimerPicker`. Continuation of flutter#170202 Fixes flutter#92644 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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…r#9457) Roll Flutter from 8303a96a0a99 to 85a9b4f38906 (93 revisions) flutter/flutter@8303a96...85a9b4f 2025-06-19 [email protected] Roll Skia from af242598f14d to 794936b23812 (2 revisions) (flutter/flutter#170875) 2025-06-19 [email protected] Drop support for 21/22 Lollipop (flutter/flutter#170748) 2025-06-19 [email protected] Roll Dart SDK from 6020126c10e8 to bce9abe03175 (1 revision) (flutter/flutter#170872) 2025-06-19 [email protected] Roll Skia from df97f7f407db to af242598f14d (4 revisions) (flutter/flutter#170867) 2025-06-19 [email protected] Roll Skia from 1d8f7ebd23cc to df97f7f407db (5 revisions) (flutter/flutter#170864) 2025-06-19 [email protected] Roll Dart SDK from 4ab716b09e9d to 6020126c10e8 (1 revision) (flutter/flutter#170862) 2025-06-19 [email protected] Roll Skia from 291d41414fa7 to 1d8f7ebd23cc (2 revisions) (flutter/flutter#170857) 2025-06-19 [email protected] Roll Dart SDK from b32559bca3cc to 4ab716b09e9d (9 revisions) (flutter/flutter#170855) 2025-06-19 [email protected] remove --start-paused flag by default and set useDwdsWebSocketConnect… (flutter/flutter#170612) 2025-06-18 [email protected] Engine builders no longer require `is_fusion` (flutter/flutter#170849) 2025-06-18 [email protected] Roll Skia from 5f110d5f48a3 to 291d41414fa7 (2 revisions) (flutter/flutter#170836) 2025-06-18 [email protected] Use a shared vertex buffer for rendering layers. (flutter/flutter#170717) 2025-06-18 [email protected] fixes deeplinking in uiscenedelegate migrated projects (flutter/flutter#170452) 2025-06-18 [email protected] [Impeller] fix array uniforms on GLES backend. (flutter/flutter#170710) 2025-06-18 [email protected] [Impeller] Update README to add section about custom embedders. (flutter/flutter#170077) 2025-06-18 [email protected] Escape the forbidden strings in the regex used to check test command output (flutter/flutter#170702) 2025-06-18 [email protected] License cpp jun16 (flutter/flutter#170716) 2025-06-18 [email protected] Work around newer compilers requiring the satisfaction of three-way comparison of EncodableValue. (flutter/flutter#170822) 2025-06-18 [email protected] Update didUnmountRenderObject text description (flutter/flutter#169628) 2025-06-18 [email protected] Roll Skia from 297dbc32a6c7 to 5f110d5f48a3 (2 revisions) (flutter/flutter#170821) 2025-06-18 [email protected] Add an initial "Using feature flags" doc for the team. (flutter/flutter#170767) 2025-06-18 [email protected] Feat: Add mouse cursor for CupertinoDialogAction (flutter/flutter#169051) 2025-06-18 [email protected] Update `Engine-artifacts.md` to reflect flutter/cocoon/4785 (flutter/flutter#170751) 2025-06-18 [email protected] `CupertinoPicker` new onChanged behaviour (flutter/flutter#170202) 2025-06-18 [email protected] Rename `entryPointBaseUrl` to `entrypointBaseUrl` (flutter/flutter#170166) 2025-06-18 [email protected] Roll Skia from 1cb13a21b547 to 297dbc32a6c7 (4 revisions) (flutter/flutter#170809) 2025-06-18 [email protected] Roll Packages from 25d4fa4 to 715a0a5 (2 revisions) (flutter/flutter#170808) 2025-06-18 [email protected] Roll Skia from 0a106c038cd0 to 1cb13a21b547 (1 revision) (flutter/flutter#170801) 2025-06-18 [email protected] Add `--profile-microtasks` switch (flutter/flutter#170690) 2025-06-18 [email protected] Roll Skia from ff7fffa5dac5 to 0a106c038cd0 (3 revisions) (flutter/flutter#170795) 2025-06-18 [email protected] Add example for CupertinoExpansionTile transition modes (flutter/flutter#170335) 2025-06-18 [email protected] feat: Add radius to DividerThemeData. (flutter/flutter#169739) 2025-06-18 [email protected] Roll Skia from 75af9450b121 to ff7fffa5dac5 (3 revisions) (flutter/flutter#170772) 2025-06-17 98614782+auto-submit[bot]@users.noreply.github.com Reverts "add run_gradle_lock_files_check.dart for new PR's that modify gradle files (#169245)" (flutter/flutter#170770) 2025-06-17 [email protected] Started bridging the scene delegate to the lifecycle delegate for shortcuts (flutter/flutter#170180) 2025-06-17 [email protected] [ui] npot display_list allocation. (flutter/flutter#170447) 2025-06-17 [email protected] Prefer .of over .from (flutter/flutter#170750) 2025-06-17 [email protected] Fix RawGestureDetector semantics (flutter/flutter#170549) 2025-06-17 [email protected] Use correct type for filterIdentifier (flutter/flutter#170343) 2025-06-17 [email protected] Remove and inline `license_header.txt` (flutter/flutter#170475) 2025-06-17 [email protected] add run_gradle_lock_files_check.dart for new PR's that modify gradle files (flutter/flutter#169245) 2025-06-17 [email protected] Roll Dart SDK from 4fad61257b29 to b32559bca3cc (3 revisions) (flutter/flutter#170746) 2025-06-17 [email protected] [release] Sync stable changelog to master (flutter/flutter#170691) 2025-06-17 [email protected] Roll Packages from 03a6abb to 25d4fa4 (5 revisions) (flutter/flutter#170743) 2025-06-17 [email protected] [ Widget Preview ] Remove support for synthetic package:flutter_gen (flutter/flutter#170602) 2025-06-17 [email protected] Roll Skia from 8879db3b3319 to 75af9450b121 (4 revisions) (flutter/flutter#170739) ...
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…or (flutter#170793) This PR adds the new `changeReportingBehavior` parameter to `CupertinoDatePicker` and `CupertinoTimerPicker`. Continuation of flutter#170202 Fixes flutter#92644 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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…or (flutter#170793) This PR adds the new `changeReportingBehavior` parameter to `CupertinoDatePicker` and `CupertinoTimerPicker`. Continuation of flutter#170202 Fixes flutter#92644 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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Nov 21, 2025
This PR updates the docs after the changes introduced in flutter#170202. ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [ ] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
lucaantonelli
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Nov 21, 2025
…or (flutter#170793) This PR adds the new `changeReportingBehavior` parameter to `CupertinoDatePicker` and `CupertinoTimerPicker`. Continuation of flutter#170202 Fixes flutter#92644 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing.
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This PR adds a new behaviour to
ListWheelScrollViewthat allows to switch between reporting changes on scroll update or only on scroll end.CupertinoPickernow has achangeReportingBehaviorparam that forwards toListWheelScrollView.New behaviour is a breaking change if set as default, so I have added the
changeReportingBehaviorparam to opt-in. My idea is that it can be marked asDeprecatedimmediately and then removed fromCupertinoPickerlater or we can just leave the param there and make it more customizable.I am open to other ideas on how to land this without breaking clients.
Fixes #170201
Pre-launch Checklist
///).