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Video: Let’s Build a TV Spatial Navigation

Sergio Avalos
Sergio Avalos
Spotify
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The video delves into spatial navigation, highlighting the challenges of implementing it in smart TV applications. It explains the need for a spatial navigation library due to the diverse operating systems of smart TVs. The talk explores how to build a web application for the user interface, which simplifies maintenance but loses native platform support for spatial navigation. The lack of browser support for spatial navigation is addressed, with a proposal in progress. The video discusses using the getBoundingClientRect method to select the next node after a key press, filtering nodes by direction and main axis, and selecting the closest one based on distance. The NavigationEngine class is updated with the handleNavigation method to implement this logic. The video also covers using a useFocusRef hook function to manage focus without static IDs, addressing challenges like complex arrangements and circular navigations. It mentions using React and React Router DOM for the demo application, with navigational nodes registered and events listened from TBControl. The video encourages developers to explore open-source projects for spatial navigation, like the one from Norwegian Media, and to get involved in building a community around smart TV application development.

This talk has been presented at React Advanced 2023, check out the latest edition of this React Conference.

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react spatial navigationcase studyiot
Sergio Avalos
Sergio Avalos
18 min
23 Oct, 2023

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