DESK-MP1-TN-0001: Running Flutter on SBC ETRA
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 This application note has been validated using the kit version in the History table. |
History[edit | edit source]
| Version | Date | Development Kit version |
|---|---|---|
| 1.0.1 | May 2024 | DESK-MP1-L 1.0.1 |
Introduction[edit | edit source]
Flutter is an open source framework by Google for building beautiful, natively compiled, multi-platform applications from a single codebase. Its main powerful characteristic is to deploy to multiple devices from a single codebase: mobile, web, desktop, and embedded devices.
Flutter consists of both a UI language and a rendering engine. When a Flutter application is compiled, it ships with both the UI code and the rendering engine
This Technical Note (TN) describes how to create a complete SD card that can run on ETRA SBC a Flutter environment for running the Flutter demo applications.
Flutter github repository is the entry point for the source codes, while the Flutter documentation is available here.
Build steps[edit | edit source]
The starting point is the dave-image-qt5-weston target from the desk-mp1-l-1.0.1 Yocto BSP tag (on desk-mp1-l-1.x.x branch).
For ETRA SBC the weston distro is used initializing the repo in the following way:
DISTRO=openstlinux-weston MACHINE=desk-mp1 source ./desk-setup-release.sh
- enter the sources directory and clone the
meta-flutterrepository
cd sources && git clone https://github.com/meta-flutter/meta-flutter.git -b kirkstone
- properly modify the
bblayers.conffile
${OEROOT}/sources/meta-flutter \
${OEROOT}/sources/meta-flutter/meta-flutter-apps \
- modify the
local.confappending the flutter packages:
IMAGE_INSTALL:append = " flutter-samples-material-3-demo flutter-wayland-client packagegroup-flutter-gallery"
then it is possible to build the dave-image-qt5-weston image
Pre-built image[edit | edit source]
A pre-built image is available - for demo purposes - on our mirror server at the following link.
Running Flutter in the target[edit | edit source]
Once the library PATH has been properly set:
root@desk-mp1:~# export LD_LIBRARY_PATH=/usr/share/flutter/flutter-gallery/3.19.3/release/lib
it is possible to start a flutter demo example invoking the flutter-client:
root@desk-mp1:~# flutter-client -f -b /usr/share/flutter/flutter-gallery/3.19.3/release/
