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fix: Don't request new thumbnail resolution on every window resize

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This commit is contained in:
Samuel Mezger 2022-04-03 07:32:12 +00:00 committed by Krille Fear
parent 2f1dc8dc15
commit 8565aa24d4
1 changed files with 25 additions and 16 deletions
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35
lib/widgets/content_banner.dart
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@ -1,3 +1,5 @@
import 'dart:ui';
import 'package:flutter/material.dart';
import 'package:cached_network_image/cached_network_image.dart';
@ -27,17 +29,7 @@ class ContentBanner extends StatelessWidget {
@override
Widget build(BuildContext context) {
final mediaQuery = MediaQuery.of(context);
final bannerSize =
(mediaQuery.size.width * mediaQuery.devicePixelRatio).toInt();
final onEdit = this.onEdit;
final src = mxContent?.getThumbnail(
client ?? Matrix.of(context).client,
width: bannerSize,
height: bannerSize,
method: ThumbnailMethod.scale,
animated: true,
);
return Container(
height: height,
alignment: Alignment.center,
@ -53,12 +45,29 @@ class ContentBanner extends StatelessWidget {
bottom: 0,
child: Opacity(
opacity: opacity,
child: (!loading && src != null)
? CachedNetworkImage(
child: (!loading)
? LayoutBuilder(builder:
(BuildContext context, BoxConstraints constraints) {
// #775 don't request new image resolution on every resize
// by rounding up to the next multiple of stepSize
const stepSize = 300;
final bannerSize =
constraints.maxWidth * window.devicePixelRatio;
final steppedBannerSize =
(bannerSize / stepSize).ceil() * stepSize;
final src = mxContent?.getThumbnail(
client ?? Matrix.of(context).client,
width: steppedBannerSize,
height: steppedBannerSize,
method: ThumbnailMethod.scale,
animated: true,
);
return CachedNetworkImage(
imageUrl: src.toString(),
height: 300,
fit: BoxFit.cover,
)
);
})
: Icon(defaultIcon, size: 200),
),
),