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Hide/Show searchBar on channel list scroll

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Signed-off-by: Sahil Kumar <[email protected]>
This commit is contained in:
Sahil Kumar
2021-01-14 13:03:50 +05:30
parent a18edfaa87
commit 5e18b7f006
1 changed files with 123 additions and 124 deletions
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example/lib/main.dart
+123 -124
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@@ -457,133 +457,132 @@ class _ChannelListPageState extends State<ChannelListPage> {
},
child: ChannelsBloc(
child: MessageSearchBloc(
child: Column(
children: [
SearchTextField(
controller: _controller,
showCloseButton: _isSearchActive,
),
Expanded(
child: AnimatedSwitcher(
duration: const Duration(milliseconds: 350),
child: GestureDetector(
behavior: HitTestBehavior.opaque,
onPanDown: (_) => FocusScope.of(context).unfocus(),
child: _isSearchActive
? MessageSearchListView(
messageQuery: _channelQuery,
filters: {
'members': {
r'$in': [user.id]
}
},
sortOptions: [
SortOption(
'created_at',
direction: SortOption.ASC,
),
],
pullToRefresh: false,
paginationParams: PaginationParams(limit: 20),
emptyBuilder: (_, query) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight:
viewportConstraints.maxHeight,
),
child: Center(
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(24),
child: StreamSvgIcon.search(
size: 96,
color: Colors.grey,
),
),
Text(
'No results for \"$query\"...',
),
],
),
),
),
);
},
);
},
onItemTap: (messageResponse) async {
final client = StreamChat.of(context).client;
final message = messageResponse.message;
final channel = client.channel(
messageResponse.channel.type,
id: messageResponse.channel.id,
);
if (channel.state == null) {
await channel.watch();
}
Navigator.pushNamed(
context,
Routes.CHANNEL_PAGE,
arguments: ChannelPageArgs(
channel: channel,
initialMessage: message,
),
);
},
)
: ChannelListView(
onStartChatPressed: () {
Navigator.pushNamed(context, Routes.NEW_CHAT);
},
swipeToAction: true,
filter: {
'members': {
r'$in': [user.id],
},
},
options: {
'presence': true,
},
pagination: PaginationParams(
limit: 20,
),
channelWidget: ChannelPage(),
onViewInfoTap: (channel) {
if (channel.memberCount == 2 &&
channel.isDistinct) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => StreamChannel(
channel: channel,
child: ChatInfoScreen(
user: channel.state.members.first.user,
),
),
),
);
} else {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => StreamChannel(
channel: channel,
child: GroupInfoScreen(),
),
),
);
}
},
),
),
child: NestedScrollView(
floatHeaderSlivers: true,
headerSliverBuilder: (_, __) => [
SliverToBoxAdapter(
child: SearchTextField(
controller: _controller,
showCloseButton: _isSearchActive,
),
),
],
body: AnimatedSwitcher(
duration: const Duration(milliseconds: 350),
child: GestureDetector(
behavior: HitTestBehavior.opaque,
onPanDown: (_) => FocusScope.of(context).unfocus(),
child: _isSearchActive
? MessageSearchListView(
messageQuery: _channelQuery,
filters: {
'members': {
r'$in': [user.id]
}
},
sortOptions: [
SortOption(
'created_at',
direction: SortOption.ASC,
),
],
pullToRefresh: false,
paginationParams: PaginationParams(limit: 20),
emptyBuilder: (_, query) {
return LayoutBuilder(
builder: (context, viewportConstraints) {
return SingleChildScrollView(
physics: AlwaysScrollableScrollPhysics(),
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: viewportConstraints.maxHeight,
),
child: Center(
child: Column(
children: [
Padding(
padding: const EdgeInsets.all(24),
child: StreamSvgIcon.search(
size: 96,
color: Colors.grey,
),
),
Text(
'No results for \"$query\"...',
),
],
),
),
),
);
},
);
},
onItemTap: (messageResponse) async {
final client = StreamChat.of(context).client;
final message = messageResponse.message;
final channel = client.channel(
messageResponse.channel.type,
id: messageResponse.channel.id,
);
if (channel.state == null) {
await channel.watch();
}
Navigator.pushNamed(
context,
Routes.CHANNEL_PAGE,
arguments: ChannelPageArgs(
channel: channel,
initialMessage: message,
),
);
},
)
: ChannelListView(
onStartChatPressed: () {
Navigator.pushNamed(context, Routes.NEW_CHAT);
},
swipeToAction: true,
filter: {
'members': {
r'$in': [user.id],
},
},
options: {
'presence': true,
},
pagination: PaginationParams(
limit: 20,
),
channelWidget: ChannelPage(),
onViewInfoTap: (channel) {
if (channel.memberCount == 2 && channel.isDistinct) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => StreamChannel(
channel: channel,
child: ChatInfoScreen(
user: channel.state.members.first.user,
),
),
),
);
} else {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => StreamChannel(
channel: channel,
child: GroupInfoScreen(),
),
),
);
}
},
),
),
),
),
),
),