home_widget 0.2.0+1
home_widget: ^0.2.0+1 copied to clipboard
A plugin to provide a common interface for creating HomeScreen Widgets for Android and iOS.
import 'dart:async';
import 'dart:io';
import 'dart:math';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:home_widget/home_widget.dart';
import 'package:workmanager/workmanager.dart';
/// Used for Background Updates using Workmanager Plugin
@pragma("vm:entry-point")
void callbackDispatcher() {
Workmanager().executeTask((taskName, inputData) {
final now = DateTime.now();
return Future.wait<bool>([
HomeWidget.saveWidgetData(
'title',
'Updated from Background',
),
HomeWidget.saveWidgetData(
'message',
'${now.hour.toString().padLeft(2, '0')}:${now.minute.toString().padLeft(2, '0')}',
),
HomeWidget.updateWidget(
name: 'HomeWidgetExampleProvider',
iOSName: 'HomeWidgetExample',
),
]).then((value) {
return !value.contains(false);
});
});
}
/// Called when Doing Background Work initiated from Widget
@pragma("vm:entry-point")
void backgroundCallback(Uri data) async {
print(data);
if (data.host == 'titleclicked') {
final greetings = [
'Hello',
'Hallo',
'Bonjour',
'Hola',
'Ciao',
'哈洛',
'안녕하세요',
'xin chào'
];
final selectedGreeting = greetings[Random().nextInt(greetings.length)];
await HomeWidget.saveWidgetData<String>('title', selectedGreeting);
await HomeWidget.updateWidget(
name: 'HomeWidgetExampleProvider', iOSName: 'HomeWidgetExample');
}
}
void main() {
WidgetsFlutterBinding.ensureInitialized();
Workmanager().initialize(callbackDispatcher, isInDebugMode: kDebugMode);
runApp(MaterialApp(home: MyApp()));
}
class MyApp extends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
final TextEditingController _titleController = TextEditingController();
final TextEditingController _messageController = TextEditingController();
@override
void initState() {
super.initState();
HomeWidget.setAppGroupId('YOUR_GROUP_ID');
HomeWidget.registerBackgroundCallback(backgroundCallback);
}
@override
void didChangeDependencies() {
super.didChangeDependencies();
_checkForWidgetLaunch();
HomeWidget.widgetClicked.listen(_launchedFromWidget);
}
@override
void dispose() {
_titleController.dispose();
_messageController.dispose();
super.dispose();
}
Future<void> _sendData() async {
try {
return Future.wait([
HomeWidget.saveWidgetData<String>('title', _titleController.text),
HomeWidget.saveWidgetData<String>('message', _messageController.text),
]);
} on PlatformException catch (exception) {
debugPrint('Error Sending Data. $exception');
}
}
Future<void> _updateWidget() async {
try {
return HomeWidget.updateWidget(
name: 'HomeWidgetExampleProvider', iOSName: 'HomeWidgetExample');
} on PlatformException catch (exception) {
debugPrint('Error Updating Widget. $exception');
}
}
Future<void> _loadData() async {
try {
return Future.wait([
HomeWidget.getWidgetData<String>('title', defaultValue: 'Default Title')
.then((value) => _titleController.text = value),
HomeWidget.getWidgetData<String>('message',
defaultValue: 'Default Message')
.then((value) => _messageController.text = value),
]);
} on PlatformException catch (exception) {
debugPrint('Error Getting Data. $exception');
}
}
Future<void> _sendAndUpdate() async {
await _sendData();
await _updateWidget();
}
void _checkForWidgetLaunch() {
HomeWidget.initiallyLaunchedFromHomeWidget().then(_launchedFromWidget);
}
void _launchedFromWidget(Uri uri) {
if (uri != null) {
showDialog(
context: context,
builder: (buildContext) => AlertDialog(
title: Text('App started from HomeScreenWidget'),
content: Text('Here is the URI: $uri'),
));
}
}
void _startBackgroundUpdate() {
Workmanager().registerPeriodicTask('1', 'widgetBackgroundUpdate',
frequency: Duration(minutes: 15));
}
void _stopBackgroundUpdate() {
Workmanager().cancelByUniqueName('1');
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('HomeWidget Example'),
),
body: Center(
child: Column(
children: [
TextField(
decoration: InputDecoration(
hintText: 'Title',
),
controller: _titleController,
),
TextField(
decoration: InputDecoration(
hintText: 'Body',
),
controller: _messageController,
),
ElevatedButton(
onPressed: _sendAndUpdate,
child: Text('Send Data to Widget'),
),
ElevatedButton(
onPressed: _loadData,
child: Text('Load Data'),
),
ElevatedButton(
onPressed: _checkForWidgetLaunch,
child: Text('Check For Widget Launch'),
),
if (Platform.isAndroid)
ElevatedButton(
onPressed: _startBackgroundUpdate,
child: Text('Update in background'),
),
if (Platform.isAndroid)
ElevatedButton(
onPressed: _stopBackgroundUpdate,
child: Text('Stop updating in background'),
)
],
),
),
);
}
}