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Only explicitly query album cache on first run

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This commit is contained in:
Ming Ming 2021-04-27 00:14:44 +08:00
parent 926ac57980
commit c2c903f494
1 changed files with 11 additions and 6 deletions
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17
lib/bloc/list_album.dart
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@ -123,15 +123,20 @@ class ListAlbumBloc extends Bloc<ListAlbumBlocEvent, ListAlbumBlocState> {
Stream<ListAlbumBlocState> _onEventQuery(ListAlbumBlocQuery ev) async* {
yield ListAlbumBlocLoading(ev.account, state.albums);
bool hasContent = state.albums.isNotEmpty;
ListAlbumBlocState cacheState = ListAlbumBlocInit();
await for (final s in _queryOffline(ev, () => cacheState)) {
cacheState = s;
if (!hasContent) {
// show something instantly on first load
ListAlbumBlocState cacheState = ListAlbumBlocInit();
await for (final s in _queryOffline(ev, () => cacheState)) {
cacheState = s;
}
yield ListAlbumBlocLoading(ev.account, cacheState.albums);
hasContent = cacheState.albums.isNotEmpty;
}
yield ListAlbumBlocLoading(ev.account, cacheState.albums);
ListAlbumBlocState newState = ListAlbumBlocInit();
if (cacheState.albums.isEmpty) {
if (!hasContent) {
await for (final s in _queryOnline(ev, () => newState)) {
newState = s;
yield s;
@ -144,7 +149,7 @@ class ListAlbumBloc extends Bloc<ListAlbumBlocEvent, ListAlbumBlocState> {
yield newState;
} else if (newState is ListAlbumBlocFailure) {
yield ListAlbumBlocFailure(
ev.account, cacheState.albums, newState.exception);
ev.account, state.albums, newState.exception);
}
}
}