Files
stream-chat-flutter/packages/stream_chat_flutter/lib/src/group_image.dart
T

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4.3 KiB
Dart

import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart';
/// Widget for constructing a group of images
class GroupImage extends StatelessWidget {
/// Constructor for creating a [GroupImage]
const GroupImage({
Key? key,
required this.images,
this.constraints,
this.onTap,
this.borderRadius,
this.selected = false,
this.selectionColor,
this.selectionThickness = 4,
}) : super(key: key);
/// List of images to display
final List<String> images;
/// Constraints on the widget
final BoxConstraints? constraints;
/// Callback when widget is tapped
final VoidCallback? onTap;
/// Highlights if selected
final bool selected;
/// [BorderRadius] to pass to the widget
final BorderRadius? borderRadius;
/// Color of selection if selected
final Color? selectionColor;
/// Thickness with which color of selection is shown
final double selectionThickness;
@override
Widget build(BuildContext context) {
Widget? avatar;
final streamChatTheme = StreamChatTheme.of(context);
avatar = GestureDetector(
onTap: onTap,
child: ClipRRect(
borderRadius: borderRadius ??
streamChatTheme.ownMessageTheme.avatarTheme?.borderRadius,
child: Container(
constraints: constraints ??
streamChatTheme.ownMessageTheme.avatarTheme?.constraints,
decoration: BoxDecoration(
color: streamChatTheme.colorTheme.accentBlue,
),
child: Flex(
direction: Axis.vertical,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Flexible(
fit: FlexFit.tight,
child: Flex(
direction: Axis.horizontal,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: images
.take(2)
.map((url) => Flexible(
fit: FlexFit.tight,
child: FittedBox(
fit: BoxFit.cover,
clipBehavior: Clip.antiAlias,
child: Transform.scale(
scale: 1.2,
child: CachedNetworkImage(
imageUrl: url,
fit: BoxFit.cover,
),
),
),
))
.toList(),
),
),
if (images.length > 2)
Flexible(
fit: FlexFit.tight,
child: Flex(
direction: Axis.horizontal,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: images
.skip(2)
.map((url) => Flexible(
fit: FlexFit.tight,
child: FittedBox(
fit: BoxFit.cover,
clipBehavior: Clip.antiAlias,
child: Transform.scale(
scale: 1.2,
child: CachedNetworkImage(
imageUrl: url,
fit: BoxFit.cover,
),
),
),
))
.toList(),
),
),
],
),
),
),
);
if (selected) {
avatar = ClipRRect(
borderRadius: (borderRadius ??
streamChatTheme.ownMessageTheme.avatarTheme?.borderRadius ??
BorderRadius.zero) +
BorderRadius.circular(selectionThickness),
child: Container(
color: selectionColor ?? streamChatTheme.colorTheme.accentBlue,
height: 64,
width: 64,
child: Padding(
padding: EdgeInsets.all(selectionThickness),
child: avatar,
),
),
);
}
return avatar;
}
}