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Re: [ercp-dev] Some eRCP/eSWT Questions
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You can use the Qt download for Linux development (that is what I do nowadays). We will be really happy if you do and report your findings. It is marked as experimental because it was released after eRCP 1.3 was released and eSWT implementation on Qt is very new. However we are working very actively on Qt implementation. We will officially support Linux as a development environment starting with eRCP 1.4 also Qt implementation will eventually replace the existing eSWT implementation on Symbian/S60 phones. I guess Benjamin got the impression that Qt port is not active because we have not refreshed the download for a while. This is noted and will do a new release before EclipseCon.
eRCP requires CDC VM to run which is not very common on mobile phones. Symbian phones support eSWT on their CLDC/MIDP runtimes starting with the S60 3rd Ed. FP2. It is possible to compile the Qt port for Maemo and run it. As mentioned you will need a VM and I believe a few VMs are known to work on Maemo, try to get more info on those from
maemo.org
--
Gorkem
On Thu, Feb 11, 2010 at 11:56 AM,
<Benjamin.Fiebig@xxxxxxxxxxxxxx> wrote:
Hi Georg,
I'm not a developer, but maybe I can answer some of your questions:
1) How can I develop mobile apps with eRCP in Linux?
1.1) Is there a Linux eRCP SDK or only a Windows eRCP SDK?
1.2) I saw that there is a eRCP Qt Experimental? Is this a SDK or just
runtime? And most important - how can I use it?
Just now only Windows (Desktop, Mobile, CE) is officially supported.
About the Qt-Version I don't know much, but looks like there is no
progress since September last year.
2) I suppose BlackBerry is not supported but I will ask anyway: Is it
supported?
3) What other Platforms are supported?
4) Is Symbian supported?
4.1) Which versions of it?
Nokia Series 80 was supported until version 1.0.2. That's all.
5) Could you provide me a list of all mobile devices(or at least the
major platforms) eRCP will run on?
6) What about LWUIT vs eRCP? Which is more advanced? Which is more
likely to work widely (on more platforms)
LWUIT is a UI Toolkit, eRCP is platform of OSGI standard. You just can't
compare these technologies. If you just want a portable UI take LWUIT.
If you want a framework with extension points take eRCP.
If you just compare eSWT (a part of eRCP) with LWUIT: eSWT is native
implemented, so it's only for the OSs noticed above. LWUIT based on MIDP
2.0 and CLDC 1.1, so it's OS independent (if there is a VM for this OS).
7) Is there a way to run an eRCP application on maemo platform (e.g.
Nokia N900)? This phone does not support java as I know so this should
be virtually impossible? Am I right or wrong?
For eRCP you need a Java VM CDC, for eSWT a CLDC. If there is no for
your platform, the only chance is to write a VM by your own.
In my opinion eRCP is not made for mobiles. Maybe for smartphones,
better on pads or stronger mobile devices.
Greetings,
Benjamin Fiebig
