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Gio

Cross Platform GUI Programming for Mobile, Desktop, WebAssembly

Speaker

Elias Naur @elias_naur

Elias is a long-time maintainer of the iOS and Android Go runtime, and until recently the maintainer of Go Mobile.

Intro

Gio is a new open source Go library for writing immediate mode GUI programs that run on all the major platforms: Android, iOS/tvOS, macOS, Linux, Windows and WebAssembly. The talk will cover Gio’s unusual design and how it achieves simplicity, portability and performance.

Resources

Slides Code Video Recording

Notes: Elias Naur presented Gio, a new open source Go library for writing immediate mode GUI programs that run on all the major platforms: Android, iOS/tvOS, macOS, Linux, Windows. The talk covered Gio’s unusual design and how it achieves simplicity, portability and performance.

Elias said, “I wanted to be able to write a GUI program in GO that I could implement only once and have it work on every platform. This, to me, is the most interesting feature of Gio.”

Elias also presented Scatter which is a Gio program for end-to-end encrypted messaging over email.

Other features of Gio include:

  • Immediate mode design
  • UI state owned by program
  • Only depends on lowest-level platform libraries
  • Minimal dependency tree to keep things low level as possible
  • GPU accelerated vector and text rendering
  • It’s super efficient
  • No garbage generated in drawing or layout code
  • Cross platform (macOS, Linux, Windows, Android, iOS, tvOS, Webassembly)
  • Core is 100% Go while OS-specific native interfaces are optional