you already found out the core of the problem: in order to launch an
application you need to set the classpath properly. Under Eclipse you
can define a launch configuration where you have to set this once. I'm
not a Netbeans user, so I don't know what you have to do there.
In most cases it might be sufficient to include xmlvm.jar to the
classpath. Here are a few shell commands to get you going:
java -jar xmlvm.jar --skeleton=iphone --app-name=HelloWorld
mkdir bin
javac -classpath xmlvm.jar -sourcepath src -d bin src/xmlvm/Main.java
java -cp xmlvm.jar:bin xmlvm.Main
Notice that the --skeleton option will also generate Netbeans project
files. I've never tried that but I think/assume that it will have all
necessary paths configured correctly.
Arno
Drayton Brown wrote:
> Hi all
>
> I checked out XMLVM a while ago and I've been watching it grow over the
> last few months. I've been quite impressed with the development! (Infact
> I find the whole idea quite ingenious!)
> Anyway's I've now decided to dip my feet in the water and give it a go!
> Although, as this is going to be more than testing a proof of concept,
> there's something I would like to clear up before I start.
>
> The problem I'm having is probably due to my development environment,
> which at the moment is Netbeans 6.7.1 When I import the XMLVM project
> into Netbeans and try and run the iFireworks example I get error:
>
> Unable to load image with name battery.png
> Unable to load image with name wifi.png
> Unable to load image with name chassis.png
> java.lang.NullPointerException
> at javax.swing.ImageIcon.<init>(ImageIcon.java:161)
> at org.xmlvm.iphone.internal.Device.addChassis(Device.java:101)
> at org.xmlvm.iphone.internal.Device.<init>(Device.java:68)
> at
> org.xmlvm.iphone.internal.SimulatorGUI.addDevice(SimulatorGUI.java:36)
> at
> org.xmlvm.iphone.internal.SimulatorGUI.<init>(SimulatorGUI.java:27)
> at
> org.xmlvm.iphone.internal.SimulatorDesktop.<init>(SimulatorDesktop.java:54)
> at org.xmlvm.iphone.UIApplication.<init>(UIApplication.java:24)
> at org.xmlvm.demo.ifireworks.Main.<init>(Main.java:8)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
> at
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
> at java.lang.Class.newInstance0(Class.java:355)
> at java.lang.Class.newInstance(Class.java:308)
> at org.xmlvm.iphone.UIApplication.main(UIApplication.java:78)
> at org.xmlvm.demo.ifireworks.Main.main(Main.java:48)
>
> Now I know this is because the images are not being found by the
> getResource() method in ImageLoader class (ln: 13). When I was just
> playing about with the code I would just hard code the appropriate path
> to get it to work. However I would now like to be able to just run the
> application and have it run without having to change this line. (As you
> can expect this gets frustrating quite quickly, also I would rather use
> the code as I get it from you :) )
>
> I've tried using Eclipse, which seems to work, but I'm not familiar with
> the IDE, so I'd rather stick to what I know. I've also found this folder:
>
> xmlvm/var/iphone/netbeans
>
> which seems to have a netbeans project skeleton, however I cann't open
> this project. What version of netbeans is being used for this?
>
> I've tried compiling the source in Eclipse and then using the xmlvm.jar
> in a newly created NB project (both with and without copying over the
> relevent files with ones from the skeleton project) however the
> exceptions persist.
>
> I would greatly appreciate any sort of help with regards to this problem.
>
> Besides this I think the project is fantastic, and I'm looking forward
> to tapping out my first iPhone app with it!
>
> Regards
> Drayton
>
> --
> http://www.facebook.com/DraytonBrown
>
>
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