There is a standard WYSIWYG editor for nine-patch (.9.png) files within the dev tools for Android developers.
However, integrating nine-patch file format support into Swing components may be inconvenient for some users.
The Nine-patch editor is an easy-to-use visual nine-patch format editor that is probably better for some developers.
Nine-patch editor is a cross-platform utility capable of running on any operating system that comes with Java support (e.g. Mac OS X, Windows, Linux).
Here are some key features of "Nine-patch editor":
· Comfortable WYSIWYG editor – easily add, move and resize patches
· Mistakes-free editor – it won’t allow you to create any incorrect patches data
· Quick preview – see all the changes you do in realtime on a small preview
· Additional history and patches copy/paste tools