HelloPi

A simple HelloFX application with Java 11+, JavaFX 11+ and GraalVM that runs on HotSpot or as a native image on Desktop and Embedded devices (Raspberry Pi).

Documentation

Read about getting started with JavaFX on Embedded here

Note that Gluon applications can run on JVM/HotSpot on ARM devices (32/64 bits) but native images currently can be created only for AArch64 (64 bits).

Quick Instructions

We use GluonFX plugin to build a native image for platforms including desktop, embedded, android and iOS. Please follow the prerequisites as stated here.

While running this sample on a JVM can be done directly from the Raspberry Pi (both 32 and 64 bits), the following instructions are mainly describing how to cross-compile and remote deploy a native image from a desktop Linux machine (x86_64) to a Raspberry Pi (64 bits, AArch64).

Desktop

Testing, fixing, and development in general, is best done on desktop. Therefore, before deploying to the Raspberry Pi, you can run the application on a JVM on your desktop (x86_64) machine:

mvn gluonfx:run

Then run the application and explore all scenarios to generate config files for the native image with:

mvn gluonfx:runagent

Build a native image using:

mvn gluonfx:build

Run the native image app:

mvn gluonfx:nativerun

Embedded - JVM (Raspberry Pi 32/64 bits)

Directly from the Raspberry Pi, run the application on a JVM using:

mvn gluonfx:run -Ppi,sdk

Embedded - Native (Raspberry Pi 64 bits)

build

On a desktop Linux machine (x86_64), cross-compile a native image for the Raspberry Pi (AArch64), using:

mvn gluonfx:build -Ppi

deploy

From the same Linux machine, install the native image, making sure the remote.host.name and remote.dir properties in the sample's pom are correctly set:

mvn gluonfx:install -Ppi

or, alternatively you can copy manually the native image binary that is located at:

target/gluonfx/aarch64-linux/HelloPi    

run

If you installed the native image from your Linux machine, you can run it remotely (via SSH) using:

mvn gluonfx:nativerun -Ppi

In any case, you can also run it locally from the Raspberry Pi with:

export ENABLE_GLUON_COMMERCIAL_EXTENSIONS=true
${remote.dir}/HelloPi -Duse.fullscreen=true -Dmonocle.platform=EGL -Dembedded=monocle -Dglass.platform=Monocle