bvandeusen
4621846ec4
Root cause for "only the first tile loads, others spin forever": Connectivity().onConnectivityChanged only emits on connectivity *changes*, not on subscription. Cold-cache code paths in albumProvider, artistProvider, playlistsProvider, likes etc. all gate their fetches on `await ref.read(connectivityProvider.future)`. Until the OS happened to report the first connectivity flip, that future never resolved — so any detail screen for an album/artist/playlist not already in the drift cache hung indefinitely at the connectivity check. The "first tile" appeared to work because by the time the user tapped it, a connectivity event had landed (or that album was already cached from a prior session). Subsequent tiles whose data wasn't yet cached blocked. Switch the provider to async* and seed it with an immediate checkConnectivity() before forwarding the change stream. .future now resolves on first read regardless of whether the OS has reported a change yet.
23 lines
1.0 KiB
Dart
23 lines
1.0 KiB
Dart
import 'package:connectivity_plus/connectivity_plus.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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/// Online if at least one connectivity result is non-none.
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/// connectivity_plus reports the union (wifi, mobile, vpn, etc.) — operator
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/// chose "no Wi-Fi gate" for #357, so any connection means "go ahead and
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/// pull/cache".
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///
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/// IMPORTANT: onConnectivityChanged only emits on *changes*, not on
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/// subscription. Without seeding an initial value via checkConnectivity(),
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/// any consumer using `ref.read(connectivityProvider.future)` would
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/// block until the OS happened to report a connectivity flip — which
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/// is exactly what made album/artist/playlist detail screens spin
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/// forever for tiles tapped before the first event landed.
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final connectivityProvider = StreamProvider<bool>((ref) async* {
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final c = Connectivity();
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bool isOnline(List<ConnectivityResult> rs) =>
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rs.any((r) => r != ConnectivityResult.none);
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yield isOnline(await c.checkConnectivity());
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yield* c.onConnectivityChanged.map(isOnline);
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});
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