File Handling Write Files – Fyne GUI Golang tutorial 46

File Handling Write Files – Fyne GUI Golang tutorial 46

 

Source Code #

<div>
<div>package main</div>
<div>// import fyne</div>
<div>import (</div>
<div>    "fyne.io/fyne/v2"</div>
<div>    "fyne.io/fyne/v2/app"</div>
<div>    "fyne.io/fyne/v2/container"</div>
<div>    "fyne.io/fyne/v2/dialog"</div>
<div>    "fyne.io/fyne/v2/widget"</div>
<div>)</div>
<div>func main() {</div>
<div>    // New app</div>
<div>    a := app.New()</div>
<div>    w := a.NewWindow("Save files...")</div>
<div>    // file handling tutorial</div>
<div>    // Resize</div>
<div>    w.Resize(fyne.NewSize(400, 400))</div>
<div>    // Entry to enter text</div>
<div>    entry := widget.NewMultiLineEntry()</div>
<div>    // btn to save text</div>
<div>    btn := widget.NewButton("Save .txt file", func() {</div>
<div>        // dialog</div>
<div>        // 2 arguments</div>
<div>        // one function</div>
<div>        // 2nd parent window</div>
<div>        fileDialog := dialog.NewFileSave(</div>
<div>            // data of entry</div>
<div>            // []byte() function is used to convert</div>
<div>            // string to bytes slice</div>
<div>            func(uc fyne.URIWriteCloser, _ error) {</div>
<div>                data := []byte(entry.Text)</div>
<div>                //_ to ignore error</div>
<div>                // Lets write data</div>
<div>                uc.Write(data)</div>
<div>            }, w) // w is parent window</div>
<div>        // File name(temporary)</div>
<div>        fileDialog.SetFileName("anyFileName.txt")</div>
<div>        // Show and setup</div>
<div>        fileDialog.Show()</div>
<div>    })</div>
<div>    // show our two widgets on screen</div>
<div>    w.SetContent(</div>
<div>        container.NewVBox(</div>
<div>            entry,</div>
<div>            btn,</div>
<div>        ),</div>
<div>    )</div>
<div>    w.ShowAndRun()</div>
<div>}</div>
</div>
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