Build a React Native theme provider using Hooks

A practical introduction to the new feature coming with v0.59

Stefan Wegener
Mar 11, 2019 · 5 min read

Prerequisites

Project Structure

- src 
— components
— TabBar.js # custom bottom tabbar component
— core
— themeProvider.js # custom hook for theming
— themes.json # JSON array containing our themes
— screens
— Main.js # first tab
— Settings.js # second tab
— App.js # navigation part
— index.js # entry point for react-native
— package.json # dependencies

Navigation Part

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Our application after the navigation part.

UI Part

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Our application after the UI Part.

Custom Hooks

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We can now change our theme — but not persisted yet.
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The state will now be persisted after app relaunch.

The Takeaway

UniNow Engineering

At UniNow Engineering we develop innovative cloud based…

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