React Context API
React Context API provides a easy way to pass data through the component tree without having to pass props down manually at every level. You can find more about the Context API in React documentation.
You can use the React Context API with React Native Navigation with a limitation. In this example, we are going to create a screen which uses the Counter Context.
As RNN screens are not part of the same component tree, updating the values in the shared context does not trigger a re-render across all screens. However you can still use the React.Context per RNN screen component tree.
If you need to trigger a re-render across all screens, there are many popular third party libraries such as MobX or Redux.
Create a Counter context
Register the screen
When registering the screen that will be using the Counter Context, we need to wrap it with the Counter Context Provider we created earlier.
Consuming the context
You can consume the Counter Context any way you want such as
React.useContext like in the