exifdart 0.7.0+1

  • README.md
  • CHANGELOG.md
  • Installing
  • Versions
  • 83

exifdart

Dart module to decode Exif data from jpeg files.

Dart port based on Exif.js: https://github.com/exif-js/exif-js/

Installation

Depend on it

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

dependencies:
  exifdart:

Install it

You can install packages from the command line:

$ pub get

Usage

Simple example:

// Add this to have the Rational class too:
// import "package:package:exifdart/exifdart.dart";

// We are not using that in this example, this alone will do fine:
import "package:package:exifdart/exifdart_html.dart";
import "dart:html";

/// Returns the orientation value or `null` if no EXIF or no orientation info
/// is found.
Future<int> getOrientation(Blob blob) async {
  if (blob.type == "image/jpeg") {
    Map<String, dynamic> tags = await readExifFromBlob(blob);
    return tags["Orientation"];
  }

  return null;
}

void main() {
  registerChangeHandler(document.querySelector("input[type=file]"));
}

void registerChangeHandler(InputElement input) {
  input.onChange.listen((Event e) {
    for (File f in input.files) {
      getOrientation(f).then((int orientation) {
        window.console.log("Orientation for ${f.name} is ${orientation}");
      });
    }
  });
}

0.7.0+1

  • fixed when FlashpixVersion is already a string

0.7.0

  • ported to Dart 2

0.6.0+1

  • fixed the botched release

0.6.0

  • created AbstractBlobReader making the core implementation platform independent
  • moved platform dependent code (a HTML Blob based implementation of AbstractBlobReader) available by importing exifdart_html.dart
  • created a dart:io based implementation of AbstractBlobReader and made it available in exifdart_io.dart
  • this is an API breaking release, you have to import both exifdart.dart and exifdart_html.dart ot get the old API

0.5.0+6

  • fixed null access on some files that have a type 0 GPSVersionID tag

0.5.0+5

  • fixed offset errors in BlobView and CacheView

0.5.0+4

  • changed switch block to make dart2js happy

Use this package as a library

1. Depend on it

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


dependencies:
  exifdart: ^0.7.0+1

2. Install it

You can install packages from the command line:

with pub:


$ pub get

with Flutter:


$ flutter packages get

Alternatively, your editor might support pub get or 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:exifdart/exifdart.dart';
  
Version Uploaded Documentation Archive
0.7.0+1 Nov 5, 2018 Go to the documentation of exifdart 0.7.0+1 Download exifdart 0.7.0+1 archive
0.7.0 Aug 21, 2018 Go to the documentation of exifdart 0.7.0 Download exifdart 0.7.0 archive
0.6.0+1 Jul 13, 2018 Go to the documentation of exifdart 0.6.0+1 Download exifdart 0.6.0+1 archive
0.6.0 Jul 12, 2018 Go to the documentation of exifdart 0.6.0 Download exifdart 0.6.0 archive
0.5.0+6 Mar 14, 2018 Go to the documentation of exifdart 0.5.0+6 Download exifdart 0.5.0+6 archive
0.5.0+5 Jan 5, 2018 Go to the documentation of exifdart 0.5.0+5 Download exifdart 0.5.0+5 archive
0.5.0+4 Dec 7, 2017 Go to the documentation of exifdart 0.5.0+4 Download exifdart 0.5.0+4 archive
0.5.0+3 Nov 23, 2017 Go to the documentation of exifdart 0.5.0+3 Download exifdart 0.5.0+3 archive
0.5.0+2 May 8, 2017 Go to the documentation of exifdart 0.5.0+2 Download exifdart 0.5.0+2 archive
0.5.0+1 May 8, 2017 Go to the documentation of exifdart 0.5.0+1 Download exifdart 0.5.0+1 archive

All 11 versions...

Popularity:
Describes how popular the package is relative to other packages. [more]
76
Health:
Code health derived from static analysis. [more]
90
Maintenance:
Reflects how tidy and up-to-date the package is. [more]
90
Overall:
Weighted score of the above. [more]
83
Learn more about scoring.

We analyzed this package on Dec 5, 2018, and provided a score, details, and suggestions below. Analysis was completed with status completed using:

  • Dart: 2.1.0
  • pana: 0.12.7

Platforms

Detected platforms: Flutter, web, other

No platform restriction found in primary library package:exifdart/exifdart.dart.

Health issues and suggestions

Document public APIs (-10 points)

25 out of 25 API elements (library, class, field or method) have no adequate dartdoc content. Good documentation improves code readability and discoverability through search.

Format lib/src/abstract_reader.dart.

Run dartfmt to format lib/src/abstract_reader.dart.

Format lib/src/blob_reader_html.dart.

Run dartfmt to format lib/src/blob_reader_html.dart.

Format lib/src/blob_reader_io.dart.

Run dartfmt to format lib/src/blob_reader_io.dart.

Fix additional 3 files with analysis or formatting issues.

Additional issues in the following files:

  • lib/src/blob_view.dart (Run dartfmt to format lib/src/blob_view.dart.)
  • lib/src/constants.dart (Run dartfmt to format lib/src/constants.dart.)
  • lib/src/exif_extractor.dart (Run dartfmt to format lib/src/exif_extractor.dart.)

Maintenance suggestions

Maintain an example. (-10 points)

Create a short demo in the example/ directory to show how to use this package. Common file name patterns include: main.dart, example.dart or you could also use exifdart.dart.

Dependencies

Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0 <3.0.0