Displaying an animated PNG (apng) using Swing?

Question

I'm trying to display an animated png (known as apng), by adding the image to a JLabel as usual. This works fine with normal gif-animations, however, I'd prefer to be able to support apng aswell.

I've been searching the net for existing frameworks or solutions for this, finding nothing. Has anyone else found a way to display animated pngs in Swing?

To understand why I want to implement apng, view the following example which demonstrates GIF's limitations: http://jsfiddle.net/RUX8w/ (your browser must support apng!)

Bloom

There doesn't seem to be much support for APNG in Java at the moment. Most examples I found required you to physically read the file yourself, which is a lot of additional overhead... – Degree

APNG is not standard PNG – Afrikaner

'The way' would be to add an SPI for APNG to the run-time class-path of the app. Given the comment of @Afrikaner though, I doubt you will find an existing SPI. – Zia

@Afrikaner I understand that. You don't know of any "API" which implements it anyway? – Bloom

@Zar: No, I've been looking into it (perhaps to include support in my PNGJ library), but frankly I disliked its approach. But there might exist other libraries. – Afrikaner

@Afrikaner Hmm, okay. I'll keep on looking. Thanks for your input. – Bloom

@AndrewThompson Thought so as well, sadly. Thanks anyways, though. – Bloom

Did you find a way to display apng in Swing? – Oca

@André No, I went with a simple GIF instead. – Bloom

Answer 1

A quick Google for "apng Java" turned up http://code.google.com/p/javapng and in particular, http://code.google.com/p/javapng/source/browse/trunk/javapng2/src/apng/com/sixlegs/png/AnimatedPngImage.java?r=300

Alabaster