Best practices for implementing cross-platform desktop applications in Golang

Best practices provide guidance for building cross-platform desktop applications using the Qt framework, including: separating UI and business logic, using Goroutines, using QML, and taking advantage of the concurrency features of the Go language. Practical case shows how to use Qt and Go to build a cross-platform text editor.

Best practices for implementing cross-platform desktop applications in Go language

Introduction

## The #Go language is a powerful programming language that provides features for building efficient, portable applications. This article will introduce the best practices for building cross-platform desktop applications using the Go language and provide practical cases.

Using the Qt framework

Qt is a cross-platform application framework that provides rich GUI components and support for multiple operating systems. The Go language is integrated with Qt through the [go-bindings](https://github.com/therecipe/qt) project, allowing developers to build Qt applications using Go.

Best Practice

• Separate UI and business logic: Follow the MVC design pattern and separate UI (view) and business logic ( model and controller) separately. This makes the code easier to maintain and test.
• Using Goroutines: Goroutines are lightweight threads in the Go language that allow asynchronous execution of tasks. This is crucial for responsive GUI applications.
• Using QML: QML (Qt metalanguage) is a language for describing UI declaratively. It makes it easier to create complex UI layouts and animations.
• Using Go: The concurrency nature of the Go language makes it ideal for handling events and operations from the GUI. For example, you can use channels and mutexes for communication and synchronization.

Practical case

The following is an example of a cross-platform text editor built using Qt and Go:

package main

import (
    "fmt"
    "log"

    "github.com/therecipe/qt/core"
    "github.com/therecipe/qt/gui"
    "github.com/therecipe/qt/widgets"
)

func main() {
    app := gui.NewQGuiApplication(len(os.Args), os.Args)
    w := widgets.NewQMainWindow(nil, 0)
    te := widgets.NewQTextEdit(w)

    w.SetCentralWidget(te)

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