stagexl_dragonbones 0.3.0

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The DragonBones runtime for the StageXL library.

DragonBones is an open source 2D skeleton animation solution very popular among Flash and Starling developers. The editor is available for Mac and Windows and does not require Adobe Flash Pro. Find more information here:

NOTE: as of version 0.3.0-dev, StageXL_DragonBones requires a Dart 2 SDK.



This runtime started as a direct port of the original AS3 runtime for DragonBones. Unfortunately the original runtime is quite complex and difficult to read. Therefore we decided to implement the DragonBones runtime for StageXL from scratch. This should make it easier to maintain the runtime, fix bugs and add new features. The drawback is that we don't support all the features of the original runtime yet. Please open new issues with your favorite runtime feature we should add next.


This file contains highlights of what changes on each version of the StageXL_DragonBones package. This file is normally updated whenever we push a new version to pub.


  • Raised dependency to StageXL 1.4.0
  • Ready for Dart 2.0


  • Raised dependency to StageXL 1.0.0


  • Simplified animation easing code.
  • Support for DragonBones 4.6 export format changes.


  • Added support for meshes.
  • Added support for free form deformations.
  • Support for DragonBones 4.5 (without IK)


  • Initial version, created by Stagehand

Use this package as a library

1. Depend on it

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

  stagexl_dragonbones: ^0.3.0

2. Install it

You can install packages from the command line:

with pub:

$ pub get

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

3. Import it

Now in your Dart code, you can use:

import 'package:stagexl_dragonbones/stagexl_dragonbones.dart';
Version Uploaded Documentation Archive
0.3.0 Aug 11, 2018 Go to the documentation of stagexl_dragonbones 0.3.0 Download stagexl_dragonbones 0.3.0 archive
0.2.2 Dec 3, 2016 Go to the documentation of stagexl_dragonbones 0.2.2 Download stagexl_dragonbones 0.2.2 archive
0.2.1 May 21, 2016 Go to the documentation of stagexl_dragonbones 0.2.1 Download stagexl_dragonbones 0.2.1 archive
0.2.0 Mar 26, 2016 Go to the documentation of stagexl_dragonbones 0.2.0 Download stagexl_dragonbones 0.2.0 archive
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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


Detected platforms: web

Primary library: package:stagexl_dragonbones/stagexl_dragonbones.dart with components: html.

Health issues and suggestions

Document public APIs (-9.40 points)

172 out of 183 API elements (library, class, field or method) have no adequate dartdoc content. Good documentation improves code readability and discoverability through search.

Format lib/src/data/animation.dart.

Run dartfmt to format lib/src/data/animation.dart.

Format lib/src/data/animation_object.dart.

Run dartfmt to format lib/src/data/animation_object.dart.

Format lib/src/data/animation_object_frame.dart.

Run dartfmt to format lib/src/data/animation_object_frame.dart.

Fix additional 29 files with analysis or formatting issues.

Additional issues in the following files:

  • lib/src/data/armature.dart (Run dartfmt to format lib/src/data/armature.dart.)
  • lib/src/data/bone/bone.dart (Run dartfmt to format lib/src/data/bone/bone.dart.)
  • lib/src/data/bone/bone_animation.dart (Run dartfmt to format lib/src/data/bone/bone_animation.dart.)
  • lib/src/data/bone/bone_animation_frame.dart (Run dartfmt to format lib/src/data/bone/bone_animation_frame.dart.)
  • lib/src/data/display.dart (Run dartfmt to format lib/src/data/display.dart.)
  • lib/src/data/mesh/mesh.dart (Run dartfmt to format lib/src/data/mesh/mesh.dart.)
  • lib/src/data/mesh/mesh_animation.dart (Run dartfmt to format lib/src/data/mesh/mesh_animation.dart.)
  • lib/src/data/mesh/mesh_animation_frame.dart (Run dartfmt to format lib/src/data/mesh/mesh_animation_frame.dart.)
  • lib/src/data/skin.dart (Run dartfmt to format lib/src/data/skin.dart.)
  • lib/src/data/skin_slot.dart (Run dartfmt to format lib/src/data/skin_slot.dart.)
  • lib/src/data/slot/slot.dart (Run dartfmt to format lib/src/data/slot/slot.dart.)
  • lib/src/data/slot/slot_animation.dart (Run dartfmt to format lib/src/data/slot/slot_animation.dart.)
  • lib/src/data/slot/slot_animation_frame.dart (Run dartfmt to format lib/src/data/slot/slot_animation_frame.dart.)
  • lib/src/dragon_bones.dart (Run dartfmt to format lib/src/dragon_bones.dart.)
  • lib/src/dragon_bones_parser_json4.dart (Run dartfmt to format lib/src/dragon_bones_parser_json4.dart.)
  • lib/src/math/curve.dart (Run dartfmt to format lib/src/math/curve.dart.)
  • lib/src/math/transform.dart (Run dartfmt to format lib/src/math/transform.dart.)
  • lib/src/skeleton/bone/skeleton_bone.dart (Run dartfmt to format lib/src/skeleton/bone/skeleton_bone.dart.)
  • lib/src/skeleton/bone/skeleton_bone_animation.dart (Run dartfmt to format lib/src/skeleton/bone/skeleton_bone_animation.dart.)
  • lib/src/skeleton/display/skeleton_display.dart (Run dartfmt to format lib/src/skeleton/display/skeleton_display.dart.)
  • lib/src/skeleton/display/skeleton_display_armature.dart (Run dartfmt to format lib/src/skeleton/display/skeleton_display_armature.dart.)
  • lib/src/skeleton/display/skeleton_display_image.dart (Run dartfmt to format lib/src/skeleton/display/skeleton_display_image.dart.)
  • lib/src/skeleton/display/skeleton_display_mesh.dart (Run dartfmt to format lib/src/skeleton/display/skeleton_display_mesh.dart.)
  • lib/src/skeleton/display/skeleton_display_mesh_animation.dart (Run dartfmt to format lib/src/skeleton/display/skeleton_display_mesh_animation.dart.)
  • lib/src/skeleton/skeleton.dart (Run dartfmt to format lib/src/skeleton/skeleton.dart.)
  • lib/src/skeleton/skeleton_object.dart (Run dartfmt to format lib/src/skeleton/skeleton_object.dart.)
  • lib/src/skeleton/skeleton_object_animation.dart (Run dartfmt to format lib/src/skeleton/skeleton_object_animation.dart.)
  • lib/src/skeleton/slot/skeleton_slot.dart (Run dartfmt to format lib/src/skeleton/slot/skeleton_slot.dart.)
  • lib/src/skeleton/slot/skeleton_slot_animation.dart (Run dartfmt to format lib/src/skeleton/slot/skeleton_slot_animation.dart.)

Maintenance suggestions

The description is too short. (-20 points)

Add more detail about the package, what it does and what is its target use case. Try to write at least 60 characters.

Maintain an example.

None of the files in your example/ directory matches a known example patterns. Common file name patterns include: main.dart, example.dart or you could also use stagexl_dragonbones.dart. Packages with multiple examples should use example/


Package Constraint Resolved Available
Direct dependencies
Dart SDK >=2.0.0 <3.0.0
stagexl >=1.4.0 <2.0.0 1.4.0+2
Transitive dependencies
collection 1.14.11
petitparser 2.0.2
xml 3.2.3
Dev dependencies
build_runner ^0.10.1
build_test ^0.10.3+1
build_web_compilers ^0.4.2+1