cached_network_image 0.5.1

Cached network image #

pub package Donate

A flutter library to show images from the internet and keep them in the cache directory.

How to use #

The CachedNetworkImage can be used directly or through the ImageProvider.

new CachedNetworkImage(
       imageUrl: "",
       placeholder: new CircularProgressIndicator(),
       errorWidget: new Icon(Icons.error),
new Image(image: new CachedNetworkImageProvider(url))

How it works #

The cached network images stores and retrieves files using the flutter_cache_manager.

[0.5.1] - 2018-11-19

  • Fixed error throwing

[0.5.0] - 2018-10-13

  • Updated cache manager for http 0.12.0

[0.4.2] - 2018-08-30

  • Updated cache manager dependency

[0.4.1] - 2018-04-27

  • Improved error handling when a file could not be loaded.

[0.4.0] - 2018-04-14

  • Added optional headers.
  • Changed to Dart 2.0
  • Fixed bug when updating widget with new url

[0.3.0] - 2018-02-09

  • Added CachedNetworkImage with placeholder and error widgets.

[0.2.1] - 2018-01-08

  • Moved from OneFrameImageStreamCompleter to MultiFrameImageStreamCompleter.
  • Updated CacheManager dependency for critical bug fix.

[0.2.0] - 2017-12-29

  • Breaking change Removed CachedNetworkImage. From now on only the ImageProvider is supported. For a placeholder use FadeInImage. See also "Fallback for Network Images".
  • Moved CacheManager to a separate library for a more generic purpose.

[0.1.0] - 2017-12-21

  • Breaking change. Upgraded to Gradle 4.1 and Android Studio Gradle plugin 3.0.1. Older Flutter projects need to upgrade their Gradle setup as well in order to use this version. Instructions can be found here.

[0.0.2] - 10 December 2017

Added an ImageProvider and improved documentation

[0.0.1] - 2 December 2017

Initial release, should be polished


example #

A new Flutter project.

Getting Started #

For help getting started with Flutter, view our online documentation.

Use this package as a library

1. Depend on it

Add this to your package's pubspec.yaml file:

  cached_network_image: ^0.5.1

2. Install it

You can install packages from the command line:

with pub:

$ pub get

with Flutter:

$ flutter pub get

Alternatively, your editor might support pub get or flutter pub get. Check the docs for your editor to learn more.

3. Import it

Now in your Dart code, you can use:

import 'package:cached_network_image/cached_network_image.dart';
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Learn more about scoring.

We analyzed this package on Aug 29, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.4.0
  • pana: 0.12.20
  • Flutter: 1.7.8+hotfix.4


Detected platforms:

Low code quality prevents platform classification.

Health issues and suggestions

Fix lib/cached_network_image.dart. (-68.67 points)

Analysis of lib/cached_network_image.dart failed with 4 errors, 2 hints, including:

line 199 col 38: The argument type 'void Function(ImageInfo, bool)' can't be assigned to the parameter type 'ImageStreamListener'.

line 200 col 32: The argument type 'void Function(ImageInfo, bool)' can't be assigned to the parameter type 'ImageStreamListener'.

line 210 col 34: The argument type 'void Function(ImageInfo, bool)' can't be assigned to the parameter type 'ImageStreamListener'.

line 465 col 9: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable

line 12 col 1: Prefer using /// for doc comments.

Maintenance issues and suggestions

Fix platform conflicts. (-20 points)

Low code quality prevents platform classification.

Support latest dependencies. (-10 points)

The version constraint in pubspec.yaml does not support the latest published versions for 1 dependency (flutter_cache_manager).


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0-dev.28.0 <3.0.0
flutter 0.0.0
flutter_cache_manager ^0.2.0+1 0.2.0+1 1.1.1
Transitive dependencies
async 2.3.0
charcode 1.1.2
collection 1.14.11 1.14.12
convert 2.1.1
crypto 2.1.2
http 0.12.0+2
http_parser 3.1.3
meta 1.1.6 1.1.7
path 1.6.4
path_provider 0.4.1 1.2.0
pedantic 1.8.0+1
shared_preferences 0.4.3 0.5.3+4
sky_engine 0.0.99
source_span 1.5.5
string_scanner 1.0.5
synchronized 1.5.3+2 2.1.0+1
term_glyph 1.1.0
typed_data 1.1.6
uuid 1.0.3 2.0.2
vector_math 2.0.8
Dev dependencies
test ^1.3.0