B4J Question Raspberry Pi with JavaFX: Limitations?

EnriqueGonzalez

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• Feb 16, 2016

• #2

Javafx UI apps won't work on raspPi, you will need Java 1.7 and even then it will be very slow.

Server apps on the other side work very good

 

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Mark Read

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• Feb 16, 2016

• #3

Sorry but this is not correct, they do. I have enough ui apps that work and they only start a little slow. Try Erels bouncing smiley!!

 

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EnriqueGonzalez

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• Feb 16, 2016

• #4

mmm you are right, i think i get stuck on an earlier version of Java.
https://www.b4x.com/android/forum/threads/b4j-and-raspberry-pi-boards.37019/#content

it seems that java 1.8.6 has better performance for UI Apps on raspBerry, thanks for correcting me.

 

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imbault

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• Feb 16, 2016

• #5

Enrique Gonzalez R said:

mmm you are right, i think i get stuck on an earlier version of Java.
https://www.b4x.com/android/forum/threads/b4j-and-raspberry-pi-boards.37019/#content

it seems that java 1.8.6 has better performance for UI Apps on raspBerry, thanks for correcting me.

Click to expand...

Correct, and java 1.7 is depreciated

 

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Erel

B4X founder

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• Feb 17, 2016

• #6

The official requirement for B4J UI apps is Java 8u40+.

Oracle has removed JavaFX from Java 8u25+. The latest Oracle ARM version that does include JavaFX is 8u6.

There might be other distributions of newer versions of JRE that does include JavaFX. If anyone has experience with other distributions then please share it.

 

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Mark Read

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• Feb 17, 2016

• #7

Good, now we have established what version of java is required for UI apps. Back to my original question. What are the limitations when using B4J on the Rpi?

1. Apps will only run full screen. Is not really a problem unless you look at this thread which I already posted but never got a solution.

Has anyone come across any other problems?

 

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Mark Read

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• Feb 18, 2016

• #8

Not working:

1. Webview - pity
2. FileChooser - Anyone got a workaround?
3. Mediaplayer.

 

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alienhunter

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• Feb 19, 2016

• #9

I think the biggest problem is that Javafx is not supported any more , you have to go back in versions for UI apps , i got a few running but
i will replace them with windows stick's and windows 10
too much to take care of , and they are way slower then the windows sticks for UI apps

 

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