aves/lib/image_providers/app_icon_image_provider.dart

68 lines
1.9 KiB
Dart

import 'dart:ui' as ui;
import 'package:aves/services/common/services.dart';
import 'package:aves_report/aves_report.dart';
import 'package:equatable/equatable.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/widgets.dart';
class AppIconImage extends ImageProvider<AppIconImageKey> {
const AppIconImage({
required this.packageName,
required this.size,
this.scale = 1.0,
});
final String packageName;
final double size;
final double scale;
@override
Future<AppIconImageKey> obtainKey(ImageConfiguration configuration) {
return SynchronousFuture<AppIconImageKey>(AppIconImageKey(
packageName: packageName,
size: size,
scale: scale,
));
}
@override
ImageStreamCompleter loadImage(AppIconImageKey key, ImageDecoderCallback decode) {
return MultiFrameImageStreamCompleter(
codec: _loadAsync(key, decode),
scale: key.scale,
informationCollector: () sync* {
yield ErrorDescription('packageName=$packageName, size=$size');
},
);
}
Future<ui.Codec> _loadAsync(AppIconImageKey key, ImageDecoderCallback decode) async {
try {
final descriptor = await appService.getAppIcon(key.packageName, key.size);
if (descriptor == null) {
throw UnreportedStateError('$packageName app icon decoding failed');
}
return descriptor.instantiateCodec();
} catch (error) {
debugPrint('$runtimeType _loadAsync failed with packageName=$packageName, error=$error');
throw UnreportedStateError('$packageName app icon decoding failed');
}
}
}
@immutable
class AppIconImageKey extends Equatable {
final String packageName;
final double size;
final double scale;
@override
List<Object?> get props => [packageName, size, scale];
const AppIconImageKey({
required this.packageName,
required this.size,
this.scale = 1.0,
});
}