firka/flutter
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Limit the size of the image cache

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Fixed #1009
This commit is contained in:
Adam Barth 2016-01-07 11:22:35 -08:00
parent dfcc0c71ba
commit 52a7479dd1
2 changed files with 9 additions and 2 deletions
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10
packages/flutter/lib/src/services/image_cache.dart
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@ -6,6 +6,7 @@ import 'dart:async';
import 'dart:ui' as ui; import 'dart:ui' as ui;
import 'package:mojo/mojo/url_response.mojom.dart'; import 'package:mojo/mojo/url_response.mojom.dart';
import 'package:quiver/collection.dart';
import 'fetch.dart'; import 'fetch.dart';
import 'image_decoder.dart'; import 'image_decoder.dart';
@ -35,11 +36,16 @@ class _UrlFetcher implements ImageProvider {
int get hashCode => _url.hashCode; int get hashCode => _url.hashCode;
} }
const int _kDefaultSize = 1000;
class _ImageCache { class _ImageCache {
_ImageCache._(); _ImageCache._();
final Map<ImageProvider, ImageResource> _cache = final LruMap<ImageProvider, ImageResource> _cache =
new Map<ImageProvider, ImageResource>(); new LruMap<ImageProvider, ImageResource>(maximumSize: _kDefaultSize);
int get maximumSize => _cache.maximumSize;
void set maximumSize(int value) { _cache.maximumSize = value; }
ImageResource loadProvider(ImageProvider provider) { ImageResource loadProvider(ImageProvider provider) {
return _cache.putIfAbsent(provider, () { return _cache.putIfAbsent(provider, () {

1
packages/flutter/pubspec.yaml
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@ -11,6 +11,7 @@ dependencies:
sky_engine: 0.0.75 sky_engine: 0.0.75
sky_services: 0.0.75 sky_services: 0.0.75
vector_math: '>=1.4.3 <2.0.0' vector_math: '>=1.4.3 <2.0.0'
quiver: '>=0.21.4 <0.22.0'
# See the comment in flutter_tools' pubspec.yaml. We have to pin it # See the comment in flutter_tools' pubspec.yaml. We have to pin it
# here also because sky_services depends on mojo_sdk which depends # here also because sky_services depends on mojo_sdk which depends