cached_network_image 0.6.0-beta

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.

[0.6.0] - WIP

  • Adapted for new cache manager library
  • Completely rewritten animated image view

[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: ^0.6.0-beta

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 15, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.4.0
  • pana: 0.12.19
  • Flutter: 1.7.8+hotfix.4


Detected platforms:

Low code quality prevents platform classification.

Health issues and suggestions

Fix lib/src/old_widget.dart. (-57.81 points)

Analysis of lib/src/old_widget.dart failed with 3 errors:

line 189 col 38: The argument type 'void Function(ImageInfo, bool)' can't be assigned to the parameter type 'ImageStreamListener'.

line 190 col 32: The argument type 'void Function(ImageInfo, bool)' can't be assigned to the parameter type 'ImageStreamListener'.

line 200 col 34: The argument type 'void Function(ImageInfo, bool)' can't be assigned to the parameter type 'ImageStreamListener'.

Fix lib/src/cached_network_image_provider.dart. (-25.38 points)

Analysis of lib/src/cached_network_image_provider.dart failed with 1 error, 1 hint:

line 46 col 9: The argument type 'Null Function(StringBuffer)' can't be assigned to the parameter type 'Iterable

line 46 col 31: This function has a return type of 'Iterable

Fix lib/src/cached_image_widget.dart. (-0.50 points)

Analysis of lib/src/cached_image_widget.dart reported 1 hint:

line 195 col 3: The method '_nonAnimatedWidget' isn't used.

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 is pre-release. (-5 points)

Pre-release versions should be used with caution; their API can change in breaking ways.


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0-dev.28.0 <3.0.0
flutter 0.0.0
flutter_cache_manager ^0.3.0-beta.3 0.3.2 1.1.1
Transitive dependencies
async 2.3.0
charcode 1.1.2
collection 1.14.11
convert 2.1.1
crypto 2.1.1+1
http 0.12.0+2
http_parser 3.1.3
meta 1.1.6 1.1.7
path 1.6.4
path_provider 0.5.0+1 1.2.0
pedantic 1.8.0+1
sky_engine 0.0.99
source_span 1.5.5
sqflite 1.1.6+3
string_scanner 1.0.5
synchronized 2.1.0+1
term_glyph 1.1.0
typed_data 1.1.6
uuid 2.0.2
vector_math 2.0.8
Dev dependencies
test ^1.3.0