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fix(mobile) memory leaked causes app to crash when swiping (#673)

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* Dispose image provider when swiping away from the asset
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Alex 2022-09-11 09:56:26 -05:00 committed by GitHub
parent 5403ef4d84
commit 011332e509
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 23 additions and 4 deletions
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27
mobile/lib/modules/asset_viewer/ui/remote_photo_view.dart
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@ -12,6 +12,9 @@ class _RemotePhotoViewState extends State<RemotePhotoView> {
bool _zoomedIn = false; bool _zoomedIn = false;
static const int swipeThreshold = 100; static const int swipeThreshold = 100;
late CachedNetworkImageProvider fullProvider;
late CachedNetworkImageProvider previewProvider;
late CachedNetworkImageProvider thumbnailProvider;
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
@ -65,7 +68,10 @@ class _RemotePhotoViewState extends State<RemotePhotoView> {
} }
CachedNetworkImageProvider _authorizedImageProvider( CachedNetworkImageProvider _authorizedImageProvider(
String url, String cacheKey, BaseCacheManager? cacheManager) { String url,
String cacheKey,
BaseCacheManager? cacheManager,
) {
return CachedNetworkImageProvider( return CachedNetworkImageProvider(
url, url,
headers: {"Authorization": widget.authToken}, headers: {"Authorization": widget.authToken},
@ -104,7 +110,7 @@ class _RemotePhotoViewState extends State<RemotePhotoView> {
} }
void _loadImages() { void _loadImages() {
CachedNetworkImageProvider thumbnailProvider = _authorizedImageProvider( thumbnailProvider = _authorizedImageProvider(
widget.thumbnailUrl, widget.thumbnailUrl,
widget.cacheKey, widget.cacheKey,
widget.thumbnailCacheManager, widget.thumbnailCacheManager,
@ -121,7 +127,7 @@ class _RemotePhotoViewState extends State<RemotePhotoView> {
); );
if (widget.previewUrl != null) { if (widget.previewUrl != null) {
CachedNetworkImageProvider previewProvider = _authorizedImageProvider( previewProvider = _authorizedImageProvider(
widget.previewUrl!, widget.previewUrl!,
"${widget.cacheKey}_previewStage", "${widget.cacheKey}_previewStage",
widget.previewCacheManager, widget.previewCacheManager,
@ -133,7 +139,7 @@ class _RemotePhotoViewState extends State<RemotePhotoView> {
); );
} }
CachedNetworkImageProvider fullProvider = _authorizedImageProvider( fullProvider = _authorizedImageProvider(
widget.imageUrl, widget.imageUrl,
"${widget.cacheKey}_fullStage", "${widget.cacheKey}_fullStage",
widget.fullCacheManager, widget.fullCacheManager,
@ -150,6 +156,19 @@ class _RemotePhotoViewState extends State<RemotePhotoView> {
_loadImages(); _loadImages();
super.initState(); super.initState();
} }
@override
void dispose() async {
super.dispose();
await thumbnailProvider.evict();
await fullProvider.evict();
if (widget.previewUrl != null) {
await previewProvider.evict();
}
_imageProvider.evict();
}
} }
class RemotePhotoView extends StatefulWidget { class RemotePhotoView extends StatefulWidget {