How to Run Flutter Apps on Desktop with Hot-Reload Using Hover

Feb 7, 2023 | Programming

Have you ever wished to create desktop applications with Flutter while enjoying real-time updates without the hassle of recompiling? Enter Hover, the tool that lets you build Flutter desktop applications with hot-reload. This blog will guide you through the installation, setup, and execution process of Hover, ensuring you can create applications effortlessly.

What is Hover?

Hover is an innovative build tool designed to facilitate the development of Flutter desktop applications. Currently in the alpha stage, it’s crucial to back up your data before jumping in, as anything can go wrong during this developmental phase.

Hover is part of the exciting go-flutter project, which aims to bring Flutter to the desktop landscape.

Installation Steps

To kick things off, Hover requires the Go language to build your Flutter application for desktop. Here’s how you can get started:

1. Install Go

  • Ensure that Go is installed on your machine. You can follow the instructions here.
  • Run go version to confirm your Go version is 1.13 or higher.

2. Install Hover

Run one of the following commands in your home directory:

bash
GO111MODULE=on go install github.com/go-flutter-desktop/hover@latest

For Windows users, use:

set GO111MODULE=on && go install github.com/go-flutter-desktop/hover@latest

Or, if using PowerShell:

powershell
$env:GO111MODULE=on; go get -u -a github.com/go-flutter-desktop/hover@latest

Ensure the Hover binary is added to your PATH, typically in $GOPATH/bin or $HOME/go/bin.

3. Install Dependencies

You will also need to install some additional dependencies:

  • A suitable C compiler (find recommendations here).
  • For GLFW dependencies: depending on your OS, follow the required protocols:
    • macOS: Install Xcode or Command Line Tools.
    • Ubuntu/Debian: Use libgl1-mesa-dev and xorg-dev.
    • CentOS/Fedora: Use libX11-devel and related packages.

Getting Started with Your Flutter Project

This section assumes you have an existing Flutter project. If not, create one using the Flutter tutorial.

1. Initialize Your Project

Navigate to your Flutter project:

bash
cd path/to/your/flutter/project

Initialize it for Hover:

bash
hover init [YOUR_PROJECT_GITHUB_PATH]

If unsure of the path, simply use hover init. This command creates essential directories and boilerplate files.

2. Running Your Application with Hot-Reload

You can now run your application:

bash
hover run

The hot-reload feature requires you to manually press r in the terminal to refresh your application.

IDE Integration

For a more seamless development experience, consider integrating Hover with your IDE.

  • VSCode: Look into the [Hover extension](https://marketplace.visualstudio.com/items?itemName=go-flutter.hover) for VSCode.
  • Emacs: Check out the hover.el package for integration.

3. Build a Standalone Application

To create a standalone release build:

bash
hover build linux  # or darwin or windows

This command will package your application, and output files will appear in go/build/outputs/[your OS].

Packaging Your Application

Hover allows you to package your application for different formats:

bash
hover init-packaging linux-appimage
hover build linux-appimage

Explore all available formats by running:

bash
hover build --help

Troubleshooting

If you encounter issues during your workflow, please check the following:

  • Ensure that your Go and Hover versions are up to date.
  • Verify that all dependencies are installed correctly.
  • Check the Go and Hover documentation for any recent changes or updates.
  • For persistent problems, report issues at the go-flutter issue tracker.

For more insights, updates, or to collaborate on AI development projects, stay connected with fxis.ai.

Conclusion

With Hover, building Flutter applications on the desktop is not only manageable but also enjoyable. Whether you are looking to experiment or develop rich applications, Hover empowers you to do so with ease. At fxis.ai, we believe that such advancements are crucial for the future of AI, as they enable more comprehensive and effective solutions. Our team is continually exploring new methodologies to push the envelope in artificial intelligence, ensuring that our clients benefit from the latest technological innovations.

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