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Increase image cache to 100MB (#19220)

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This should fix #18952 and #813
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liyuqian 2018-07-10 15:28:47 -07:00 committed by GitHub
parent 59d6527f07
commit 160d92e350
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1 changed files with 9 additions and 9 deletions
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18
packages/flutter/lib/src/painting/image_cache.dart
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@ -5,18 +5,18 @@
import 'image_stream.dart';
const int _kDefaultSize = 1000;
const int _kDefaultSizeBytes = 10485760; // 10 MiB
const int _kDefaultSizeBytes = 100 << 20; // 100 MiB
/// Class for the [imageCache] object.
///
/// Implements a least-recently-used cache of up to 1000 images. The maximum
/// size can be adjusted using [maximumSize]. Images that are actively in use
/// (i.e. to which the application is holding references, either via
/// [ImageStream] objects, [ImageStreamCompleter] objects, [ImageInfo] objects,
/// or raw [dart:ui.Image] objects) may get evicted from the cache (and thus
/// need to be refetched from the network if they are referenced in the
/// [putIfAbsent] method), but the raw bits are kept in memory for as long as
/// the application is using them.
/// Implements a least-recently-used cache of up to 1000 images, and up to 100
/// MB. The maximum size can be adjusted using [maximumSize] and
/// [maximumSizeBytes]. Images that are actively in use (i.e. to which the
/// application is holding references, either via [ImageStream] objects,
/// [ImageStreamCompleter] objects, [ImageInfo] objects, or raw [dart:ui.Image]
/// objects) may get evicted from the cache (and thus need to be refetched from
/// the network if they are referenced in the [putIfAbsent] method), but the raw
/// bits are kept in memory for as long as the application is using them.
///
/// The [putIfAbsent] method is the main entry-point to the cache API. It
/// returns the previously cached [ImageStreamCompleter] for the given key, if