Shipping the Fyne Toolkit

About

Fyne is an easy-to-use UI toolkit and app API written in Go. It is designed to build applications that run on desktop and mobile devices with a single codebase.

Version 2.1 is the current release of the Fyne API, it introduced RichText and the DocTabs container, as well as the document storage API and FyneApp.toml metadata support. We are now working towards the next big release, codenamed bowmore and more news will follow in our news feeds and GitHub project.

Prerequisites

To develop apps using Fyne you will need Go version 1.14 or later, a C compiler and your system's development tools. If you're not sure if that's all installed or you don't know how then check out our Getting Started document.

Using the standard go tools you can install Fyne's core library using:

$ go get fyne.io/fyne/v2

Widget demo

To run a showcase of the features of Fyne execute the following:

$ go get fyne.io/fyne/v2/cmd/fyne_demo/
$ fyne_demo

And you should see something like this (after you click a few buttons):

Or if you are using the light theme:

And even running on a mobile device:

Getting Started

Fyne is designed to be really easy to code with. If you have followed the prerequisite steps above then all you need is a Go IDE (or a text editor).

Open a new file and you're ready to write your first app!

package main

import (
	"fyne.io/fyne/v2/app"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/widget"
)

func main() {
	a := app.New()
	w := a.NewWindow("Hello")

	hello := widget.NewLabel("Hello Fyne!")
	w.SetContent(container.NewVBox(
		hello,
		widget.NewButton("Hi!", func() {
			hello.SetText("Welcome :)")
		}),
	))

	w.ShowAndRun()
}

And you can run that simply as:

$ go run main.go

It should look like this:

-ldflags -H=windowsgui

Run in mobile simulation

There is a helpful mobile simulation mode that gives a hint of how your app would work on a mobile device:

$ go run -tags mobile main.go

Installing

go installbin

$ go get fyne.io/fyne/v2/cmd/fyne
$ fyne install

Packaging for mobile

To run on a mobile device it is necessary to package up the application. To do this we can use the fyne utility "package" subcommand. You will need to add appropriate parameters as prompted, but the basic command is shown below. Once packaged you can install using the platform development tools or the fyne "install" subcommand.

$ fyne package -os android -appID my.domain.appname
$ fyne install -os android

Preparing a release

-os ios

$ fyne release -os ios -certificate "Apple Distribution" -profile "My App Distribution" -appID "com.example.myapp"

The above command will create a '.ipa' file that can then be uploaded to the iOS App Store.

Documentation

More documentation is available at the Fyne developer website or on pkg.go.dev.

Examples

You can find many example applications in the examples repository. Alternatively a list of applications using fyne can be found at our website.

Shipping the Fyne Toolkit

All Fyne apps will work without pre-installed libraries, this is one reason the apps are so portable. However, if looking to support Fyne in a bigger way on your operating system then you can install some utilities that help to make a more complete experience.

Additional apps

It is recommended that you install the following additional apps:

fyne.io/fyne/v2/cmd/fyne_settingsgithub.com/fyne-io/apps

These are optional applications but can help to create a more complete desktop experience.

FyneDesk (Linux / BSD)

To go all the way with Fyne on your desktop / laptop computer you could install FyneDesk as well :)