Home > Article > Backend Development > Let’s talk about how to use the walk library in golang
Go programming language is a language that has grown rapidly in recent years and is increasingly used in application development. In the Go language, many library functions are provided to facilitate developers, including the walk
library.
Walk
library provides a cross-platform graphical user interface (GUI) library that can be used to develop desktop-based applications. The library is available for Windows and Linux operating systems and is easy to use. Let’s start with how to use this library.
The first step is to install the walk
library
Since the walk
library is a third-party library of the Go language, you need to install it first. The installation method is as follows:
go get github.com/lxn/walk
The above command will automatically download the walk
library from GitHub and install it. After the installation is complete, add the walk
library to your code :
import "github.com/lxn/walk"
The second step is to create your first form
Create a new hello.go
file and write the following code:
package main import ( "fmt" "github.com/lxn/walk" . "github.com/lxn/walk/declarative" ) func main() { var mainWindow *walk.MainWindow err := MainWindow{ Title: "Hello World", MinSize: Size{Width: 300, Height: 200}, Layout: VBox{}, Children: []Widget{ Label{ Text: "Hello, world!", }, PushButton{ Text: "Click Me!", OnClicked: func() { fmt.Println("Button Clicked!") }, }, }, }.Create(&mainWindow) if err != nil { fmt.Println(err) return } mainWindow.Run() }
Run the program:
go run hello.go
If all goes well, you should see a window with a label and a button.
The third step, write a more complex application
Next, we will write a slightly more complex application: a button and A window with a text box. When the user clicks the button, a message will be displayed in the text box.
package main import ( "github.com/lxn/walk" . "github.com/lxn/walk/declarative" ) func main() { var inTE *walk.TextEdit var outTE *walk.TextEdit MainWindow{ Title: "Hello Golang", MinSize: Size{Width: 300, Height: 200}, Layout: VBox{}, Children: []Widget{ TextEdit{ AssignTo: &inTE, ReadOnly: false, }, TextEdit{ AssignTo: &outTE, ReadOnly: true, Text: "Click the 'Say Hi' button to see a greeting.", }, PushButton{ Text: "Say Hi", OnClicked: func(){ userMessage := inTE.Text() greeting := "Hello, " + userMessage + "!" outTE.SetText(greeting) }, }, }, }.Run() }
The operation process of this application is as follows:
The above are just some simple examples,Walk
The library also provides many other components and tools to flexibly meet different needs. If you want to know more about the Walk
library, please refer to the official documentation.
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