Nine Patcher

A command line tool to creates nine-patch JSON metadata files, for use with this Flutter package.

Workflow

  • Create a nine-patch file at high resolution, with the appropriate nine-patch border.
  • Run:
dart run nine_patcher path/to/image.9.png output/dir

This will take the image.9.png and create two files in output/dir:

  1. image.png the plain image without the nine-patch border.
  2. image.9.json the metadata for the nine-patch border in JSON format.

If the file is of the format path/to/Nx/image.9.png (where Nx could be say 4x) then Nx is assumed to be the scale and added to the metadata to aid in rendering resolution independent assets.

Example

dart run nine_patcher examples/4.0x/box_orange_rounded.9.png

Libraries

nine_patcher