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feat(mobile): Adds better precaching for assets in gallery view and memory lane (#7486)

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Adds better precaching for assets in gallery view and memory lane
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martyfuhry 2024-02-28 17:13:15 -05:00 committed by GitHub
parent d28abaad7b
commit b1a896ba61
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2 changed files with 30 additions and 7 deletions
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30
mobile/lib/modules/asset_viewer/views/gallery_viewer.dart
View file

@ -1,3 +1,4 @@
import 'dart:async';
import 'dart:io';
import 'dart:math';
import 'dart:ui' as ui;
@ -132,7 +133,7 @@ class GalleryViewerPage extends HookConsumerWidget {
void toggleFavorite(Asset asset) =>
ref.read(assetProvider.notifier).toggleFavorite([asset]);
void precacheNextImage(int index) {
Future<void> precacheNextImage(int index) async {
void onError(Object exception, StackTrace? stackTrace) {
// swallow error silently
debugPrint('Error precaching next image: $exception, $stackTrace');
@ -140,7 +141,7 @@ class GalleryViewerPage extends HookConsumerWidget {
if (index < totalAssets && index >= 0) {
final asset = loadAsset(index);
precacheImage(
await precacheImage(
ImmichImage.imageProvider(asset: asset),
context,
onError: onError,
@ -711,6 +712,21 @@ class GalleryViewerPage extends HookConsumerWidget {
[],
);
useEffect(
() {
// No need to await this
unawaited(
// Delay this a bit so we can finish loading the page
Future.delayed(const Duration(milliseconds: 400)).then(
// Precache the next image
(_) => precacheNextImage(currentIndex.value + 1),
),
);
return null;
},
[],
);
ref.listen(showControlsProvider, (_, show) {
if (show) {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
@ -761,12 +777,16 @@ class GalleryViewerPage extends HookConsumerWidget {
),
itemCount: totalAssets,
scrollDirection: Axis.horizontal,
onPageChanged: (value) {
onPageChanged: (value) async {
final next = currentIndex.value < value ? value + 1 : value - 1;
precacheNextImage(next);
HapticFeedback.selectionClick();
currentIndex.value = value;
stackIndex.value = -1;
HapticFeedback.selectionClick();
// Wait for page change animation to finish
await Future.delayed(const Duration(milliseconds: 400));
// Then precache the next image
unawaited(precacheNextImage(next));
},
builder: (context, index) {
final a =

7
mobile/lib/modules/memories/views/memory_page.dart
View file

@ -124,11 +124,14 @@ class MemoryPage extends HookConsumerWidget {
.then((_) => precacheAsset(1));
}
onAssetChanged(int otherIndex) {
Future<void> onAssetChanged(int otherIndex) async {
HapticFeedback.selectionClick();
currentAssetPage.value = otherIndex;
precacheAsset(otherIndex + 1);
updateProgressText();
// Wait for page change animation to finish
await Future.delayed(const Duration(milliseconds: 400));
// And then precache the next asset
await precacheAsset(otherIndex + 1);
}
/* Notification listener is used instead of OnPageChanged callback since OnPageChanged is called