Oops! Looks like you can only use `useTheme` within `NativeBaseConfigProvider`

During my project, I encountered the following error:

Error explanation:

This error occurred in the following location:

in Container
in ProductContainer (created by App)
in RCTView (created by View)
in View (created by App)
in App (created by ExpoRoot)
in ExpoRoot
in RCTView (created by View)
in View (created by AppContainer)
in RCTView (created by View)
in View (created by AppContainer)
in AppContainer

ProductContainer.js:

import React, { useState, useEffect } from 'react'

import { View, StyleSheet, ActivityIndicator, FlatList, Text} from 'react-native'

import { Container, Header, Icon, Item, Input, Text } from 'native-base';

import ProductList from './ProductList';

const data = require('../../assets/data/products.json');

const ProductContainer = () => {

const [products, setProducts ] = useState([]);

useEffect(() => {

    setProducts(data);

    return () => {

        setProducts([])

    }

}, [])

const styles = StyleSheet.create({

    container: {

      flex: 1,

      backgroundColor: '#fff',

      alignItems: 'center',

      justifyContent: 'center',

    }

})

return (

    <Container>

        <Header searchBar rounded>
        </Header>

        <View style={styles.container}>
            <Text>Product Container</Text>
            <View style={styles.listContainer}>
            <FlatList 
                data={products}
                numColumns={2}
                renderItem={({item}) => <ProductList 
                key={item.brand}
                item={item}/>}
                keyExtractor={item => item.brand}
            />

        </View>

    </View> 

    </Container>
    
)

}

export default ProductContainer;

Answer №1

I was able to resolve the issue by following the steps outlined in this GitHub problem: https://github.com/GeekyAnts/NativeBase/issues/2587.

It turns out that the solution involves wrapping the app elements in <NativeBaseProvider>.

In this particular case, you can observe how the native base provider encapsulates all other providers. If the <NativeBaseProvider> is not the top-level element, an error will be thrown:

useTheme must be used within `NativeBaseConfigProvider

export default function App() {
    return (
      <NativeBaseProvider>
        <SafeAreaProvider>
          <AuthProvider>
            <Navigation colorScheme={colorScheme} />
            <StatusBar />
          </AuthProvider>
        </SafeAreaProvider>
      </NativeBaseProvider>
    );
}

Answer №2

<Wrapper>
    <Container>
        <Header searchBar rounded>
        </Header>
        <View style={styles.container}>
            <Text>Product Container</Text>
            <View style={styles.listContainer}>
                <FlatList 
                    data={products}
                    numColumns={2}
                    renderItem={({item}) => <ProductList 
                        key={item.brand}
                        item={item}/>}
                    keyExtractor={item => item.brand}
                />
            </View>
        </View> 
    </Container>
</Wrapper>

wrap all these elements inside a Wrapper tag...

Answer №3

If you encounter the problem during testing, a simple solution is to pass initialWindowMetrics to NativeBaseProvider in your test cases.

const metrics = {
  frame: { x: 0, y: 0, width: 0, height: 0 },
  insets: { top: 0, left: 0, right: 0, bottom: 0 },
};

<NativeBaseProvider initialWindowMetrics={metrics}>
  {children}
</NativeBaseProvider>;

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