Flutter Cache Image #

A flutter library to cache network images. This package support the download of images from a standard network url and from a firebase gs storage url.

This package depends only on the flutter firebase storage library; there are no others external dependencies.

Images are stored in the app temporary directory.

How to add #

Add to pubspec.yaml:

dependencies:
  cache_image: "^0.0.1"

Add it to your dart file:

import 'package:cache_image/cache_image.dart';

How to use #

CacheImage widget can be used in two different way:

Standard network image path #

return CacheImage.network(
  path: 'image_url_path',
  placeholder: new Container(
    padding: EdgeInsets.all(16.0),
    color: Colors.grey[100],
    child: new Center(
      child: new Image.asset('image_asset_path'),
    ),
  )
)

Firebase network image path #

return CacheImage.firebase(
  path: 'gs_url_path',
  placeholder: new Container(
    padding: EdgeInsets.all(16.0),
    color: Colors.grey[100],
    child: new Center(
      child: new Image.asset('image_asset_path'),
    ),
  )
)

API #

Widget Placeholder - Widget to display when online image isn't in cache
String Prefix - String used to parse gs firebase storage path.
Duration Duration - Animation duration between placeholder and image.
String Path - Firebase/Network image path.

[0.0.1]

Initial release, support to firebase and standard network paths.

Use this package as a library

1. Depend on it

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


dependencies:
  cache_image: ^0.0.2

2. Install it

You can install packages from the command line:

with Flutter:


$ flutter packages get

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

3. Import it

Now in your Dart code, you can use:


import 'package:cache_image/cache_image.dart';

Version	Uploaded	Documentation	Archive
0.0.2	Jan 28, 2019
0.0.1	Aug 12, 2018

Popularity: Describes how popular the package is relative to other packages. [more]	75
Health: Code health derived from static analysis. [more]	100
Maintenance: Reflects how tidy and up-to-date the package is. [more]	60
Overall: Weighted score of the above. [more]	80

Learn more about scoring.

We analyzed this package on Apr 23, 2019, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

Dart: 2.2.0
pana: 0.12.14
Flutter: 1.4.7

Platforms

Detected platforms: Flutter

References Flutter, and has no conflicting libraries.

Health suggestions

Format lib/cache_image.dart.

Run flutter format to format lib/cache_image.dart.

Maintenance suggestions

The package description is too short. (-20 points)

Add more detail to the description field of pubspec.yaml. Use 60 to 180 characters to describe the package, what it does, and its target use case.

Maintain an example. (-10 points)

Create a short demo in the example/ directory to show how to use this package.

Common filename patterns include main.dart, example.dart, and cache_image.dart. Packages with multiple examples should provide example/README.md.

For more information see the pub package layout conventions.

Package is pre-v0.1 release. (-10 points)

While nothing is inherently wrong with versions of 0.0.*, it might mean that the author is still experimenting with the general direction of the API.

Dependencies

Package	Constraint	Resolved	Available
Direct dependencies
Dart SDK	>=1.19.0 < 3.0.0
firebase_storage	^1.0.4	1.1.0+1	2.1.0+1
flutter		0.0.0
path_provider	^0.5.0	0.5.0+1
Transitive dependencies
collection		1.14.11
firebase_core		0.2.5+1	0.3.4
meta		1.1.6	1.1.7
sky_engine		0.0.99
typed_data		1.1.6
vector_math		2.0.8
Dev dependencies
flutter_test

Dart pub

cache_image 0.0.2