fyne-widgets/examples/floatingControlsContainer/main.go

package main

import (
	"fmt"
	"image/color"

	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/app"
	"fyne.io/fyne/v2/canvas"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/widget"
	"git.martyn.berlin/martyn/fyne-widgets/pkg/layouts"
)

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

	background := canvas.NewRectangle(color.RGBA{255, 0, 0, 128})

	layout := layouts.NewFloatingControlsLayout()
	layout.FloatingControlsLocation = layouts.FloatingControlsCenter
	button := widget.NewButton("X", func() {
		fmt.Println("button clicked")
		layout.FloatingControlsLocation = layout.FloatingControlsLocation + 1
		if layout.FloatingControlsLocation > 8 {
			layout.FloatingControlsLocation = 0
		}
		w.SetContent(w.Content())
	})

	w.SetContent(container.New(&layout, background, button))
	w.Resize(fyne.NewSize(100, 100))
	w.ShowAndRun()
}