user-interface - 在fyne中向MultiLineEntry附加一些文本

Question

我想将一些文本附加到此MultiLineEntry中作为按钮事件。我知道如何设置文本，但找不到附加一些文本的任何示例。是否还有其他widget可用于此目的？到目前为止，这是我的代码:

package main

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

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

    largeText := widget.NewMultiLineEntry()
    largeText.SetText("Lorem ipsum ...")
    largeText.SetPlaceHolder("Type here")

    form := &widget.Form{
        Items: []*widget.FormItem{
        },
        OnCancel: func() {
            fmt.Println("Cancelled")
        },
        OnSubmit: func() {
            fmt.Println("Form submitted")
            // EVENT TO APPEND TO MULTILINE
        },
    }

    w.SetContent(container.NewVBox(form,largeText))

    w.ShowAndRun()
}

Answer 1

您可以先获取然后设置:

    largeText := widget.NewMultiLineEntry()
    largeText.SetText("Lorem ipsum ...")
    originalText := largeText.Text
    fmt.Println(originalText)
    newText := originalText + "appending new text"
    largeText.SetText(newText)