appflowy_editor 0.0.3 appflowy_editor: ^0.0.3 copied to clipboard
A highly customizable rich-text editor for Flutter
import 'dart:convert';
import 'dart:io';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:path_provider/path_provider.dart';
import 'package:appflowy_editor/appflowy_editor.dart';
import 'expandable_floating_action_button.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: const MyHomePage(title: 'AppFlowyEditor Example'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _pageIndex = 0;
late EditorState _editorState;
Future<String>? _jsonString;
@override
Widget build(BuildContext context) {
return Scaffold(
extendBodyBehindAppBar: true,
body: _buildEditor(context),
floatingActionButton: _buildExpandableFab(),
);
}
Widget _buildEditor(BuildContext context) {
if (_jsonString != null) {
return _buildEditorWithJsonString(_jsonString!);
}
if (_pageIndex == 0) {
return _buildEditorWithJsonString(
rootBundle.loadString('assets/example.json'),
);
} else if (_pageIndex == 1) {
return _buildEditorWithJsonString(
rootBundle.loadString('assets/big_document.json'),
);
} else if (_pageIndex == 2) {
return _buildEditorWithJsonString(
Future.value(
jsonEncode(EditorState.empty().document.toJson()),
),
);
}
throw UnimplementedError();
}
Widget _buildEditorWithJsonString(Future<String> jsonString) {
return FutureBuilder<String>(
future: jsonString,
builder: (_, snapshot) {
if (snapshot.hasData) {
_editorState = EditorState(
document: StateTree.fromJson(
Map<String, Object>.from(
json.decode(snapshot.data!),
),
),
);
_editorState.logConfiguration
..level = LogLevel.all
..handler = (message) {
debugPrint(message);
};
return SizedBox(
width: MediaQuery.of(context).size.width,
child: AppFlowyEditor(
editorState: _editorState,
editorStyle: const EditorStyle.defaultStyle(),
),
);
} else {
return const Center(
child: CircularProgressIndicator(),
);
}
},
);
}
Widget _buildExpandableFab() {
return ExpandableFab(
distance: 112.0,
children: [
ActionButton(
icon: const Icon(Icons.abc),
onPressed: () => _switchToPage(0),
),
ActionButton(
icon: const Icon(Icons.abc),
onPressed: () => _switchToPage(1),
),
ActionButton(
icon: const Icon(Icons.abc),
onPressed: () => _switchToPage(2),
),
ActionButton(
icon: const Icon(Icons.print),
onPressed: () => {_exportDocument(_editorState)}),
ActionButton(
icon: const Icon(Icons.import_export),
onPressed: () => _importDocument(),
),
],
);
}
void _exportDocument(EditorState editorState) async {
final document = editorState.document.toJson();
final json = jsonEncode(document);
final directory = await getTemporaryDirectory();
final path = directory.path;
final file = File('$path/editor.json');
await file.writeAsString(json);
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text('The document is saved to the ${file.path}'),
),
);
}
}
void _importDocument() async {
final directory = await getTemporaryDirectory();
final path = directory.path;
final file = File('$path/editor.json');
setState(() {
_jsonString = file.readAsString();
});
}
void _switchToPage(int pageIndex) {
if (pageIndex != _pageIndex) {
setState(() {
_pageIndex = pageIndex;
});
}
}
}