JavaFX on rPi & iOS with RoboVM

Stephen F Northover steve.x.northover at
Wed Oct 30 15:27:07 PDT 2013

Hi Tom,

I bet if you entered a JIRA for some of these items (with "[iOS]" in the 
title), someone ... cough, cough ... might be able to take a look at 
them.  My RoboVM setup has been broken for a few weeks and I have been 
unable to get to it.


On 2013-10-30 11:47 AM, Tom Schindl wrote:
> Hi,
> I've been working on some samples for my presentation at EclipseCon
> Europe and wanted share my findings.
> 1. rpi (opendjk b113)
> ---------------------
> As a demo i used Gerrit Grunwalds imagerollover [1] which in principle
> works great but at a certain point crashes with an exception so
> something in the OpenGL implementation there does not work. You should
> be able to reproduce yourself by running the code.
> 2. iOS
> ------
> I've been running on jfx78 backport from about 2 weeks ago. I saw some
> commits for iOS but I don't think that matters.
> a) Image rollover
> I delambdarized Gerrits code to run on JDK6 (which RoboVM is) and while
> the animations are smooth (in the simulator and real iPad-Device)
> there's a lot of what Steve calls screenscheese. I don't think that
> RoboVM is the cause for this.
> b) Charts [2]
> PieCharts are not working completely there are certain segments in the
> pie missing (on the Simulator it is ok, on the device it is broken!),
> BarCharts work ok.
> x/y translate animations:
> animation them e.g. by sliding them in from is lags a lot. I know that
> charts are not the easiest components but anyways I think sliding a
> chart in and out must be smooth.
> fade animation:
> lags and is not smooth
> It might be that my animation code is not doing the right things [3] but
> I doubt that it is that wrong.
> I don't know how much Java-Bound this animation code is so RoboVM could
> be one cause of the problem although I doubt that because e.g. for the
> x/y translate animations the smaller the area I animate the smoother it
> gets.
> Tom
> [1]
> [2]
> [3]

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