147 lines
4.9 KiB
Dart
147 lines
4.9 KiB
Dart
import 'package:flutter/material.dart';
|
|
import 'package:stream_chat_flutter/src/full_screen_media.dart';
|
|
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
|
|
import 'package:stream_chat_flutter_core/stream_chat_flutter_core.dart';
|
|
|
|
/// Widget for constructing a group of images in message
|
|
class ImageGroup extends StatelessWidget {
|
|
/// Constructor for creating [ImageGroup] widget
|
|
const ImageGroup({
|
|
Key? key,
|
|
required this.images,
|
|
required this.message,
|
|
required this.messageTheme,
|
|
required this.size,
|
|
this.onReturnAction,
|
|
this.onShowMessage,
|
|
}) : super(key: key);
|
|
|
|
/// List of attachments to show
|
|
final List<Attachment> images;
|
|
|
|
/// Callback when attachment is returned to from other screens
|
|
final ValueChanged<ReturnActionType>? onReturnAction;
|
|
|
|
/// Message which images are attached to
|
|
final Message message;
|
|
|
|
/// [MessageTheme] to apply to message
|
|
final MessageTheme messageTheme;
|
|
|
|
/// Size of iamges
|
|
final Size size;
|
|
|
|
/// Callback for when show message is tapped
|
|
final ShowMessageCallback? onShowMessage;
|
|
|
|
@override
|
|
Widget build(BuildContext context) => ConstrainedBox(
|
|
constraints: BoxConstraints.loose(size),
|
|
child: Flex(
|
|
direction: Axis.vertical,
|
|
children: <Widget>[
|
|
Flexible(
|
|
fit: FlexFit.tight,
|
|
child: Flex(
|
|
crossAxisAlignment: CrossAxisAlignment.stretch,
|
|
direction: Axis.horizontal,
|
|
children: [
|
|
Flexible(
|
|
fit: FlexFit.tight,
|
|
child: _buildImage(context, 0),
|
|
),
|
|
Flexible(
|
|
fit: FlexFit.tight,
|
|
child: Padding(
|
|
padding: const EdgeInsets.only(left: 2),
|
|
child: _buildImage(context, 1),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
if (images.length >= 3)
|
|
Flexible(
|
|
fit: FlexFit.tight,
|
|
child: Padding(
|
|
padding: const EdgeInsets.only(top: 2),
|
|
child: Flex(
|
|
direction: Axis.horizontal,
|
|
crossAxisAlignment: CrossAxisAlignment.stretch,
|
|
children: <Widget>[
|
|
Flexible(
|
|
fit: FlexFit.tight,
|
|
child: _buildImage(context, 2),
|
|
),
|
|
if (images.length >= 4)
|
|
Flexible(
|
|
fit: FlexFit.tight,
|
|
child: Padding(
|
|
padding: const EdgeInsets.only(left: 2),
|
|
child: Stack(
|
|
fit: StackFit.expand,
|
|
children: <Widget>[
|
|
_buildImage(context, 3),
|
|
if (images.length > 4)
|
|
Positioned.fill(
|
|
child: GestureDetector(
|
|
onTap: () => _onTap(context, 3),
|
|
child: Material(
|
|
color: Colors.black38,
|
|
child: Center(
|
|
child: Text(
|
|
'+ ${images.length - 4}',
|
|
style: const TextStyle(
|
|
color: Colors.white,
|
|
fontSize: 26,
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
),
|
|
),
|
|
],
|
|
),
|
|
);
|
|
|
|
void _onTap(
|
|
BuildContext context,
|
|
int index,
|
|
) async {
|
|
final channel = StreamChannel.of(context).channel;
|
|
|
|
final res = await Navigator.push(
|
|
context,
|
|
MaterialPageRoute(
|
|
builder: (context) => StreamChannel(
|
|
channel: channel,
|
|
child: FullScreenMedia(
|
|
mediaAttachments: images,
|
|
startIndex: index,
|
|
userName: message.user?.name,
|
|
message: message,
|
|
onShowMessage: onShowMessage,
|
|
),
|
|
),
|
|
),
|
|
);
|
|
if (res != null) onReturnAction?.call(res);
|
|
}
|
|
|
|
Widget _buildImage(BuildContext context, int index) => ImageAttachment(
|
|
attachment: images[index],
|
|
size: size,
|
|
message: message,
|
|
messageTheme: messageTheme,
|
|
onAttachmentTap: () => _onTap(context, index),
|
|
);
|
|
}
|