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The entry widget is used for user input of simple text content. An entry can be created with a simple widget.NewEntry() constructing function. When you create the widget keep a reference so that you can access its Text field later. It is also possible to use the OnChanged callback function to be notified every time the content changes.

Entry widgets can also have validation for verifying the text input typed into it. This can be done by setting the Validator field to a fyne.StringValidator. You can also set a PlaceHolder text and also set the entry to MultiLine to accept more than one line of text.

package main

import (
	"log"

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

func main() {
	myApp := app.New()
	myWindow := myApp.NewWindow("Entry Widget")

	input := widget.NewEntry()
	input.SetPlaceHolder("Enter text...")

	content := container.NewVBox(input, widget.NewButton("Save", func() {
		log.Println("Content was:", input.Text)
	}))

	myWindow.SetContent(content)
	myWindow.ShowAndRun()
}

You can also create a password entry (where the content is obscured) using the NewPasswordEntry() function.