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Handle errors while loading thumbnail

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This commit is contained in:
Vishnu Mohandas 2020-05-12 22:17:02 +05:30
parent cdc889462a
commit fda5230ec9
1 changed files with 8 additions and 2 deletions
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10
lib/ui/thumbnail_widget.dart
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@ -1,6 +1,7 @@
import 'package:flutter/material.dart';
import 'package:photos/core/cache/thumbnail_cache.dart';
import 'package:photos/models/photo.dart';
import 'package:logging/logging.dart';
import 'package:photos/core/constants.dart';
class ThumbnailWidget extends StatefulWidget {
@ -15,17 +16,19 @@ class ThumbnailWidget extends StatefulWidget {
}
class _ThumbnailWidgetState extends State<ThumbnailWidget> {
static final _logger = Logger("ThumbnailWidget");
static final Widget loadingWidget = Container(
alignment: Alignment.center,
color: Colors.grey[500],
);
bool _hasLoadedThumbnail = false;
bool _encounteredErrorLoadingThumbnail = false;
ImageProvider _imageProvider;
@override
Widget build(BuildContext context) {
if (!_hasLoadedThumbnail) {
if (!_hasLoadedThumbnail && !_encounteredErrorLoadingThumbnail) {
final cachedSmallThumbnail =
ThumbnailLruCache.get(widget.photo, THUMBNAIL_SMALL_SIZE);
if (cachedSmallThumbnail != null) {
@ -42,7 +45,10 @@ class _ThumbnailWidgetState extends State<ThumbnailWidget> {
widget.photo
.getAsset()
.thumbDataWithSize(THUMBNAIL_SMALL_SIZE, THUMBNAIL_SMALL_SIZE)
.then((data) {
.catchError((e) {
_logger.warning("Could not load image: ", e);
_encounteredErrorLoadingThumbnail = true;
}).then((data) {
if (mounted) {
setState(() {
if (data != null) {