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b473698019
Enables the Scribe feature, or Android stylus handwriting text input.  This PR only implements basic handwriting input. Other features will be done in subsequent PRs: * https://github.com/flutter/flutter/issues/155948 * https://github.com/flutter/flutter/issues/156018 I created and fixed issue about stylus hovering while working on this: https://github.com/flutter/flutter/issues/148810 Original PR for iOS Scribble, the iOS version of this feature: https://github.com/flutter/flutter/pull/75472 FYI @fbcouch ~~Depends on https://github.com/flutter/engine/pull/52943~~ (merged). Fixes https://github.com/flutter/flutter/issues/115607 <details> <summary>Example code I'm using to test this feature (but any TextField works)</summary> ```dart import 'package:flutter/material.dart'; import 'package:flutter/scheduler.dart'; import 'package:flutter/services.dart'; void main() { runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({super.key}); @override Widget build(BuildContext context) { return const MaterialApp( home: MyHomePage(), ); } } class MyHomePage extends StatefulWidget { const MyHomePage({super.key}); @override State<MyHomePage> createState() => _MyHomePageState(); } class _MyHomePageState extends State<MyHomePage> { final FocusNode _focusNode1 = FocusNode(); final FocusNode _focusNode2 = FocusNode(); final FocusNode _focusNode3 = FocusNode(); final TextEditingController _controller3 = TextEditingController( text: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.', ); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: const Text('Scribe demo'), ), body: Center( child: Padding( padding: const EdgeInsets.symmetric(horizontal: 74.0), child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ TextField( focusNode: _focusNode1, autofocus: false, ), TextField( focusNode: _focusNode2, ), TextField( focusNode: _focusNode3, minLines: 4, maxLines: 4, controller: _controller3, ), TextButton( onPressed: () { _focusNode1.unfocus(); _focusNode2.unfocus(); _focusNode3.unfocus(); }, child: const Text('Unfocus'), ), TextButton( onPressed: () { _focusNode1.requestFocus(); SchedulerBinding.instance.addPostFrameCallback((Duration _) { SystemChannels.textInput.invokeMethod('TextInput.hide'); }); }, child: const Text('Focus 1'), ), ], ), ), ), ); } } ``` </details> --------- Co-authored-by: Nate Wilson <nate.w5687@gmail.com>
61 lines
2.4 KiB
Dart
61 lines
2.4 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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/// Platform services exposed to Flutter apps.
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///
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/// To use, import `package:flutter/services.dart`.
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///
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/// This library depends only on core Dart libraries and the `foundation`
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/// library.
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library services;
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export 'src/services/asset_bundle.dart';
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export 'src/services/asset_manifest.dart';
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export 'src/services/autofill.dart';
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export 'src/services/binary_messenger.dart';
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export 'src/services/binding.dart';
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export 'src/services/browser_context_menu.dart';
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export 'src/services/clipboard.dart';
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export 'src/services/debug.dart';
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export 'src/services/deferred_component.dart';
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export 'src/services/flavor.dart';
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export 'src/services/font_loader.dart';
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export 'src/services/haptic_feedback.dart';
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export 'src/services/hardware_keyboard.dart';
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export 'src/services/keyboard_inserted_content.dart';
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export 'src/services/keyboard_key.g.dart';
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export 'src/services/keyboard_maps.g.dart';
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export 'src/services/live_text.dart';
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export 'src/services/message_codec.dart';
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export 'src/services/message_codecs.dart';
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export 'src/services/mouse_cursor.dart';
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export 'src/services/mouse_tracking.dart';
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export 'src/services/platform_channel.dart';
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export 'src/services/platform_views.dart';
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export 'src/services/predictive_back_event.dart';
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export 'src/services/process_text.dart';
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export 'src/services/raw_keyboard.dart';
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export 'src/services/raw_keyboard_android.dart';
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export 'src/services/raw_keyboard_fuchsia.dart';
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export 'src/services/raw_keyboard_ios.dart';
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export 'src/services/raw_keyboard_linux.dart';
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export 'src/services/raw_keyboard_macos.dart';
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export 'src/services/raw_keyboard_web.dart';
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export 'src/services/raw_keyboard_windows.dart';
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export 'src/services/restoration.dart';
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export 'src/services/scribe.dart';
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export 'src/services/service_extensions.dart';
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export 'src/services/spell_check.dart';
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export 'src/services/system_channels.dart';
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export 'src/services/system_chrome.dart';
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export 'src/services/system_navigator.dart';
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export 'src/services/system_sound.dart';
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export 'src/services/text_boundary.dart';
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export 'src/services/text_editing.dart';
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export 'src/services/text_editing_delta.dart';
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export 'src/services/text_formatter.dart';
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export 'src/services/text_input.dart';
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export 'src/services/text_layout_metrics.dart';
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export 'src/services/undo_manager.dart';
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