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nearby_service/example_full/lib/presentation/view/communication_view.dart
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Dart

import 'dart:io';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:nearby_service/nearby_service.dart';
import 'package:nearby_service_example_full/domain/app_service.dart';
import 'package:nearby_service_example_full/presentation/app.dart';
import 'package:nearby_service_example_full/uikit/uikit.dart';
import 'package:nearby_service_example_full/utils/files_saver.dart';
import 'package:provider/provider.dart';
import '../components/device_preview.dart';
class CommunicationView extends StatefulWidget {
const CommunicationView({super.key});
@override
State<CommunicationView> createState() => _CommunicationViewState();
}
class _CommunicationViewState extends State<CommunicationView> {
String message = '';
List<PlatformFile> files = [];
@override
Widget build(BuildContext context) {
return Selector<AppService, NearbyDevice?>(
selector: (context, service) => service.connectedDevice,
builder: (context, device, _) {
if (device == null) {
return Center(
child: ActionButton(
onTap: context.read<AppService>().stopListeningAll,
title: 'Restart',
),
);
}
final inputBorder = OutlineInputBorder(
borderSide: const BorderSide(color: kGreenColor),
borderRadius: BorderRadius.circular(32),
);
return Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
DevicePreview(device: device, largeView: true),
const SizedBox(height: 10),
Flexible(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Expanded(
flex: 2,
child: TextField(
onChanged: (value) => setState(() {
message = value;
}),
decoration: InputDecoration(
contentPadding: const EdgeInsets.symmetric(
horizontal: 24,
vertical: 12,
),
enabledBorder: inputBorder,
border: inputBorder,
focusedBorder: inputBorder,
hintStyle: const TextStyle(color: kGreenColor),
hintText: 'Enter a message',
),
),
),
Flexible(
child: ActionButton(
title: 'Send',
onTap: () => context.read<AppService>().sendTextRequest(
message,
),
),
),
],
),
),
const SizedBox(height: 10),
const Text('OR'),
const SizedBox(height: 10),
Flexible(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Expanded(
flex: 2,
child: ActionButton(
type: ActionType.success,
title: 'Choose files',
onTap: () async {
final result = await FilePicker.platform.pickFiles(
allowMultiple: true,
);
setState(() {
files = [...?result?.files];
});
},
),
),
Flexible(
child: ActionButton(
title: 'Send',
onTap: () => context.read<AppService>().sendFilesRequest([
...files
.map((e) => e.path)
.where((element) => element != null)
.cast<String>(),
]),
),
),
],
),
),
const SizedBox(height: 10),
const Text('Selected files:', style: TextStyle(fontSize: 18)),
Flexible(
child: GridView.count(
shrinkWrap: true,
crossAxisCount: 2,
mainAxisSpacing: 12,
crossAxisSpacing: 12,
physics: const NeverScrollableScrollPhysics(),
children: [
...files.where((element) => element.path != null).map(
(e) {
return Container(
decoration: BoxDecoration(
border: Border.all(color: kGreenColor),
borderRadius: BorderRadius.circular(12),
),
child: ClipRRect(
borderRadius: BorderRadius.circular(11),
child: FilesSaver.isImage(e.extension)
? Image.file(
File(e.path!),
fit: BoxFit.cover,
)
: Container(
alignment: Alignment.center,
padding: const EdgeInsets.all(8.0),
child: Text(
e.name,
style: const TextStyle(
fontSize: 8,
fontWeight: FontWeight.bold,
color: kGreenColor,
),
),
),
),
);
},
),
],
),
),
],
);
},
);
}
}