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[ChannelListView] Convert listView.custom into listView.separated

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Signed-off-by: Sahil Kumar <[email protected]>
This commit is contained in:
Sahil Kumar
2020-12-28 23:30:35 +05:30
parent 0f36fdcf4f
commit 38d3140ab1
1 changed files with 13 additions and 25 deletions
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lib/src/channel_list_view.dart
+13 -25
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@@ -278,21 +278,19 @@ class _ChannelListViewState extends State<ChannelListView>
}, },
); );
} else { } else {
child = ListView.custom( child = ListView.separated(
physics: AlwaysScrollableScrollPhysics(), physics: AlwaysScrollableScrollPhysics(),
controller: _scrollController, itemCount:
childrenDelegate: SliverChildBuilderDelegate( channels.isNotEmpty ? channels.length + 1 : channels.length,
(context, i) { separatorBuilder: (_, index) {
return _itemBuilder(context, i, channels); if (widget.separatorBuilder != null) {
}, return widget.separatorBuilder(context, index);
childCount: (channels.length * 2) + 1, }
findChildIndexCallback: (key) { return _separatorBuilder(context, index);
final ValueKey<String> valueKey = key; },
final index = channels.indexWhere( itemBuilder: (context, index) {
(channel) => 'CHANNEL-${channel.id}' == valueKey.value); return _listItemBuilder(context, index, channels);
return index != -1 ? (index * 2) : null; },
},
),
); );
} }
} }
@@ -483,20 +481,10 @@ class _ChannelListViewState extends State<ChannelListView>
); );
} }
Widget _itemBuilder(context, int i, List<Channel> channels) { Widget _listItemBuilder(BuildContext context, int i, List<Channel> channels) {
if (i % 2 != 0) {
if (widget.separatorBuilder != null) {
return widget.separatorBuilder(context, i);
}
return _separatorBuilder(context, i);
}
i = i ~/ 2;
final channelsProvider = ChannelsBloc.of(context); final channelsProvider = ChannelsBloc.of(context);
if (i < channels.length) { if (i < channels.length) {
final channel = channels[i]; final channel = channels[i];
ChannelTapCallback onTap; ChannelTapCallback onTap;
if (widget.onChannelTap != null) { if (widget.onChannelTap != null) {
onTap = widget.onChannelTap; onTap = widget.onChannelTap;