# Deprecated API removed after v2.5 > After reaching end of life, the following deprecated APIs were removed from Flutter. ## Summary In accordance with Flutter's [Deprecation Policy][], deprecated APIs that reached end of life after the 2.5 stable release have been removed. All affected APIs have been compiled into this primary source to aid in migration. A [quick reference sheet][] is available as well. [Deprecation Policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#deprecations [quick reference sheet]: /go/deprecations-removed-after-2-5 ## Changes This section lists the deprecations by affected class. --- ### `autovalidate` of `Form` & related classes Supported by Flutter Fix: yes `autovalidate` was deprecated in v1.19. Use `autovalidateMode` instead. Where `autovalidate` was true, replace with `AutovalidateMode.always`. Where `autovalidate` was false, replace with `AutovalidateMode.disabled`. This change allows more behaviors to be specified beyond the original binary choice, adding `AutovalidateMode.onUserInteraction` as an additional option. The following classes all have the same change of API: - `Form` - `FormField` - `DropdownButtonFormField` - `TextFormField` **Migration guide** [In-depth migration guide available][] Code before migration: ```dart const Form form = Form(autovalidate: true); const Form form = Form(autovalidate: false); final autoMode = form.autovalidate; const FormField formField = FormField(autovalidate: true); const FormField formField = FormField(autovalidate: false); final autoMode = formField.autovalidate; const TextFormField textFormField = TextFormField(autovalidate: true); const TextFormField textFormField = TextFormField(autovalidate: false); const DropdownButtonFormField dropDownButtonFormField = DropdownButtonFormField(autovalidate: true); const DropdownButtonFormField dropdownButtonFormField = DropdownButtonFormField(autovalidate: false); ``` Code after migration: ```dart const Form form = Form(autovalidateMode: AutovalidateMode.always); const Form form = Form(autovalidateMode: AutovalidateMode.disabled); final autoMode = form.autovalidateMode; const FormField formField = FormField(autovalidateMode: AutovalidateMode.always); const FormField formField = FormField(autovalidateMode: AutovalidateMode.disabled); final autoMode = formField.autovalidateMode; const TextFormField textFormField = TextFormField(autovalidateMode: AutovalidateMode.always); const TextFormField textFormField = TextFormField(autovalidateMode: AutovalidateMode.disabled); const DropdownButtonFormField dropDownButtonFormField = DropdownButtonFormField(autovalidateMode: AutovalidateMode.always); const DropdownButtonFormField dropdownButtonFormField = DropdownButtonFormField(autovalidateMode: AutovalidateMode.disabled); ``` [In-depth migration guide available]: /release/breaking-changes/form-field-autovalidation-api **References** API documentation: * [`Form`][] * [`FormField`][] * [`TextFormField`][] * [`DropdownButtonFormField`][] * [`AutovalidateMode`][] Relevant issues: * [Issue 56363](https://github.com/flutter/flutter/issues/56363) * [Issue 18885](https://github.com/flutter/flutter/issues/18885) * [Issue 15404](https://github.com/flutter/flutter/issues/15404) * [Issue 36154](https://github.com/flutter/flutter/issues/36154) * [Issue 48876](https://github.com/flutter/flutter/issues/48876) Relevant PRs: * Deprecated in [#59766](https://github.com/flutter/flutter/pull/59766) * Removed in [#90292](https://github.com/flutter/flutter/pull/90292) [`Form`]: https://api.flutter.dev/flutter/widgets/Form-class.html [`FormField`]: https://api.flutter.dev/flutter/widgets/FormField-class.html [`TextFormField`]: https://api.flutter.dev/flutter/material/TextFormField-class.html [`DropdownButtonFormField`]: https://api.flutter.dev/flutter/material/DropdownButtonFormField-class.html [`AutovalidateMode`]: https://api.flutter.dev/flutter/widgets/AutovalidateMode-class.html --- ### `FloatingHeaderSnapConfiguration.vsync` Supported by Flutter Fix: no The `TickerProvider` `vsync` property of `FloatingHeaderSnapConfiguration` was deprecated in v1.19. The `vsync` for the animation should instead be specified using `SliverPersistentHeaderDelegate.vsync`. **Migration guide** Code before migration: ```dart class MySliverPersistentHeaderDelegate extends SliverPersistentHeaderDelegate { FloatingHeaderSnapConfiguration? get snapConfiguration => FloatingHeaderSnapConfiguration(vsync: myTickerProvider); } ``` Code after migration: ```dart class MySliverPersistentHeaderDelegate extends SliverPersistentHeaderDelegate { FloatingHeaderSnapConfiguration? get snapConfiguration => FloatingHeaderSnapConfiguration(); TickerProvider? get vsync => myTickerProvider; } ``` **References** Design document: * [Control SliverPersistentHeader's showOnScreen Behavior][] API documentation: * [`FloatingHeaderSnapConfiguration`][] * [`SliverPersistentHeaderDelegate`][] * [`TickerProvider`][] Relevant issues: * [Issue 25507](https://github.com/flutter/flutter/issues/25507) Relevant PRs: * Deprecated in [#56413](https://github.com/flutter/flutter/pull/56413) * Removed in [#90293](https://github.com/flutter/flutter/pull/90293) [Control SliverPersistentHeader's showOnScreen Behavior]: https://docs.google.com/document/d/1BZhxy176uUnqOCnXdnHM1XetS9mw9WIyUAOE-dgVdUM/edit?usp=sharing [`FloatingHeaderSnapConfiguration`]: https://api.flutter.dev/flutter/rendering/FloatingHeaderSnapConfiguration-class.html [`SliverPersistentHeaderDelegate`]: https://api.flutter.dev/flutter/widgets/SliverPersistentHeaderDelegate-class.html [`TickerProvider`]: https://api.flutter.dev/flutter/scheduler/TickerProvider-class.html --- ### `AndroidViewController` & subclasses' `id` Supported by Flutter Fix: yes The `id` of `AndroidViewController`, `TextureAndroidViewController`, and `SurfaceAndroidViewController`, was deprecated in v1.20. For all of these use cases, `viewId` should be used instead. **Migration guide** Code before migration: ```dart final SurfaceAndroidViewController surfaceController = SurfaceAndroidViewController( viewId: 10, viewType: 'FixTester', layoutDirection: TextDirection.ltr, ); int viewId = surfaceController.id; final SurfaceAndroidViewController surfaceController = SurfaceAndroidViewController( error: '', ); final TextureAndroidViewController textureController = TextureAndroidViewController( error: '', ); final TextureAndroidViewController textureController = TextureAndroidViewController( viewId: 10, viewType: 'FixTester', layoutDirection: TextDirection.ltr, ); viewId = textureController.id; ``` Code after migration: ```dart final SurfaceAndroidViewController surfaceController = SurfaceAndroidViewController( viewId: 10, viewType: 'FixTester', layoutDirection: TextDirection.ltr, ); int viewId = surfaceController.viewId; final SurfaceAndroidViewController surfaceController = SurfaceAndroidViewController( error: '', ); final TextureAndroidViewController textureController = TextureAndroidViewController( error: '', ); final TextureAndroidViewController textureController = TextureAndroidViewController( viewId: 10, viewType: 'FixTester', layoutDirection: TextDirection.ltr, ); viewId = textureController.viewId; ``` **References** Design document: * [Flutter Hybrid Composition][] API documentation: * [`AndroidViewController`][] * [`TextureAndroidViewController`][] * [`SurfaceAndroidViewController`][] Relevant issues: * [Issue 55218](https://github.com/flutter/flutter/issues/55218) Relevant PRs: * Deprecated in [#60320](https://github.com/flutter/flutter/issues/60320) * Removed in [#90294](https://github.com/flutter/flutter/issues/90294) [Flutter Hybrid Composition]: https://github.com/flutter/flutter/blob/main/docs/platforms/Hybrid-Composition.md [`AndroidViewController`]: https://api.flutter.dev/flutter/services/AndroidViewController-class.html [`TextureAndroidViewController`]: https://api.flutter.dev/flutter/services/TextureAndroidViewController-class.html [`SurfaceAndroidViewController`]: https://api.flutter.dev/flutter/services/SurfaceAndroidViewController-class.html --- ### `BlacklistingTextInputFormatter` & `WhitelistingTextInputFormatter` Supported by Flutter Fix: no The entire classes of `BlacklistingTextInputFormatter` and `WhitelistingTextInoutFormatter` were deprecated in v1.20. Their functionality has been rewritten into a single class, `FilteringTextInputFormatter`. **Migration guide** Code before migration: ```dart formatter = BlacklistingTextInputFormatter(pattern, replacementString: 'replacedPattern'); formatter = BlacklistingTextInputFormatter.singleLineFormatter; pattern = formatter.blacklistedPattern; formatter = WhitelistingTextInputFormatter(pattern); formatter = WhitelistingTextInputFormatter.digitsOnly; pattern = formatter.whitelistedPattern; ``` Code after migration: ```dart formatter = FilteringTextInputFormatter.deny(pattern, replacementString: 'replacedPattern'); formatter = FilteringTextInputFormatter.singleLineFormatter; pattern = formatter.filterPattern; formatter = FilteringTextInputFormatter.allow(pattern); formatter = FilteringTextInputFormatter.digitsOnly; pattern = formatter.filterPattern; ``` **References** API documentation: * [`FilteringTextInputFormatter`][] Relevant PRs: * Deprecated in [#59120](https://github.com/flutter/flutter/issues/59120) * Removed in [#90296](https://github.com/flutter/flutter/issues/90296) [`FilteringTextInputFormatter`]: https://api.flutter.dev/flutter/services/FilteringTextInputFormatter-class.html --- ### `BottomNavigationBarItem.title` Supported by Flutter Fix: yes The `title` of `BottomNavigationBarItem` was deprecated in v1.19. The `label` property should be used instead. This migration allows for better text scaling, and presents built-in `Tooltip`s for the `BottomNavigationBarItem` in the context of a `BottomNavigationBar`. **Migration guide** [In-depth migration guide available][] Code before migration: ```dart const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(title: myTitle); const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(); bottomNavigationBarItem.title; ``` Code after migration: ```dart const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(label: myTitle); const BottomNavigationBarItem bottomNavigationBarItem = BottomNavigationBarItem(); bottomNavigationBarItem.label; ``` **References** Design document: * [BottomNavigationBarItem title][] API documentation: * [`BottomNavigationBarItem`][] * [`BottomNavigationBar`][] * [`Tooltip`][] Relevant PRs: * Deprecated in [#59127](https://github.com/flutter/flutter/issues/59127) * Removed in [#90295](https://github.com/flutter/flutter/issues/90295) [In-depth migration guide available]: /release/breaking-changes/bottom-navigation-title-to-label [BottomNavigationBarItem title]: /go/bottom-navigation-bar-title-deprecation [`BottomNavigationBarItem`]: https://api.flutter.dev/flutter/widgets/BottomNavigationBarItem-class.html [`BottomNavigationBar`]: https://api.flutter.dev/flutter/material/BottomNavigationBar-class.html [`Tooltip`]: https://api.flutter.dev/flutter/material/Tooltip-class.html --- ### `packageRoot` in `dart:core`, `dart:isolate`, and `package:platform` The following APIs have been removed: * [`Platform.packageRoot`][] in `dart:core` * [`Isolate.packageRoot`][] in `dart:isolate` * [`Platform.packageRoot`][] in `package:platform` These APIs were marked deprecated [in Dart 2.0][dart-deprecated], and did not work correctly in any Dart 2.x release. **Migration guide** These `packageRoot` APIs have been replaced by a new set of `packageConfig` APIs, which you should migrate to. * [`Platform.packageConfig`][] in `dart:core` * [`Isolate.packageConfig`][] in `dart:isolate` * [`Platform.packageConfig`][] in `package:platform` If you are using the `package:platform` package, note that regardless of whether you are using the `packageRoot` API or not, older versions of that package are not compatible with Dart 2.16 and later, as they depend on the now removed `packageRoot` API. You may see an error like this when attempting to run your app: ```plaintext ../../.pub-cache/hosted/pub.dartlang.org/platform-3.0.0/ lib/src/interface/local_platform.dart:46:19: Error: Member not found: 'packageRoot'. io.Platform.packageRoot; // ignore: deprecated_member_use ^^^^^^^^^^^ ``` To resolve that, upgrade to version `3.1.0` or later of `package:platform` by upgrading the constraint in your `pubspec.yaml` file: ```yaml dependencies: platform: ^3.1.0 ``` **References** Relevant PRs: * Removed from the Dart libraries in [#47769][] * Removed from `package:platform` in [PR #38][] * Updated Flutter to use `package:platform` 3.1.0 in [PR #94603][] [`Platform.packageRoot`]: https://api.dart.dev/stable/2.15.1/dart-io/Platform/packageRoot.html [`Isolate.packageRoot`]: https://api.dart.dev/stable/2.15.1/dart-isolate/Isolate/packageRoot.html [`Platform.packageRoot`]: https://pub.dev/documentation/platform/3.0.0/platform/Platform/packageRoot.html [dart-deprecated]: https://dart-review.googlesource.com/c/sdk/+/59100/16/CHANGELOG.md [`Platform.packageConfig`]: https://api.dart.dev/stable/2.15.1/dart-io/Platform/packageConfig.html [`Isolate.packageConfig`]: https://api.dart.dev/stable/2.15.1/dart-isolate/Isolate/packageConfig.html [`Platform.packageConfig`]: https://pub.dev/documentation/platform/3.0.0/platform/Platform/packageConfig.html [#47769]: https://github.com/dart-lang/sdk/issues/47769 [PR #38]: https://github.com/google/platform.dart/pull/38 [PR #94603]: https://github.com/flutter/flutter/pull/94603 --- ## Timeline In stable release: 2.10