44 lines
1.2 KiB
Dart
44 lines
1.2 KiB
Dart
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import 'dart:async';
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import 'package:flutter/foundation.dart';
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import 'package:flutter/painting.dart';
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import 'package:flutter/services.dart';
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class PreloadImage {
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static Future<void> loadImage(ImageProvider provider) {
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final config = ImageConfiguration(
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bundle: rootBundle,
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devicePixelRatio: 1,
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platform: defaultTargetPlatform,
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);
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final Completer<void> completer = Completer();
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final ImageStream stream = provider.resolve(config);
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late final ImageStreamListener listener;
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listener = ImageStreamListener(
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(ImageInfo image, bool sync) {
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debugPrint("Image ${image.debugLabel} finished loading");
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completer.complete();
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stream.removeListener(listener);
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},
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onError: (dynamic exception, StackTrace? stackTrace) {
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completer.complete();
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stream.removeListener(listener);
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FlutterError.reportError(
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FlutterErrorDetails(
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context: ErrorDescription('image failed to load'),
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library: 'image resource service',
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exception: exception,
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stack: stackTrace,
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silent: true,
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),
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);
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},
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);
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stream.addListener(listener);
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return completer.future;
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}
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}
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