`useTheme` 必须在 `NativeBaseConfigProvider` 中使用答案

【问题标题】：`useTheme` must be used within `NativeBaseConfigProvider``useTheme` 必须在 `NativeBaseConfigProvider` 中使用
【发布时间】：2022-06-16 23:53:33
【问题描述】：

在我的项目中遇到了上述错误，谁能告诉我如何解决这个错误。

我遇到的错误是：

错误：useTheme 必须在 NativeBaseConfigProvider 内使用

此错误位于：

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 } from 'native-base';
import ProductList from './ProductList';
import SearchedProduct from './SearchedProducts';
const data = require('../../assets/data/products.json');
const ProductContainer = () => {
    const [products, setProducts ] = useState([]);
    const [productsFiltered, setProductsFiltered] = useState([]);
    const [focus, setFocus] = useState();
    useEffect(() => {
        setProducts(data);
        setProductsFiltered(data);
        setFocus(false);
        return () => {
            setProducts([])
            setProductsFiltered([])
            setFocus()
        }
    }, [])    
    const SearchProduct = (text) => {
        setProductsFiltered(
            products.filter((i) => i.name.toLowerCase().includes(text.toLowerCase()))
        );
    }
    const openList = () => {
        setFocus(true);
    } 
    const onBlur = () => {
        setFocus(flase);
    }
    return (
        <Container>
            <View  style = {{ flexDirection: "row"}}>
                  <Input
                  width = "100%"
                  variant = "rounded"
                  placeholder="Search"
                  onFocus={openList}
                  onChangeText={(text) => SearchProduct(text)}
                  />                  
            </View>
            {focus == true ? (
                <SearchProduct 
                    productsFiltered={productsFiltered}
                />
            ) : (
                <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>        
    )
}
const styles = StyleSheet.create({
    container: {
      flex: 1,
      backgroundColor: '#fff',
      alignItems: 'center',
      justifyContent: 'center',
    },
  });
export default ProductContainer

App.js

import { StatusBar } from 'expo-status-bar';
import React from 'react';
import { StyleSheet, Text, View } from 'react-native';

//Screens
import Header from './Shared/Header'
import ProductContainer from './Screens/Products/ProductContainer'

export default function App() {
    return (
        <View style={styles.container}>
          <Header />
          <ProductContainer />
        </View>
    );
}

const styles = StyleSheet.create({
    container: {
        flex: 1,
        backgroundColor: '#fff',
        alignItems: 'center',
        justifyContent: 'center',
    },
});

package.json：

{
    "name": "animal-feedmart",
    "version": "1.0.0",
    "main": "node_modules/expo/AppEntry.js",
    "scripts": {
        "start": "expo start",
        "android": "expo start --android",
        "ios": "expo start --ios",
        "web": "expo start --web",
        "eject": "expo eject"
    },
    "dependencies": {
        "expo": "~44.0.0",
        "expo-status-bar": "~1.2.0",
        "native-base": "^3.3.7",
        "react": "17.0.1",
        "react-dom": "17.0.1",
        "react-native": "0.64.3",
        "react-native-base": "^1.1.0",
        "react-native-safe-area-context": "^4.2.1",
        "react-native-svg": "^12.3.0",
        "react-native-web": "0.17.1"
    },
    "devDependencies": {
        "@babel/core": "^7.12.9"
    },
    "private": true
}

请问谁能帮我解决这个问题？提前致谢

【问题讨论】：

标签： node.js npm

【解决方案1】：

在您的 app.js 中导入 NativeBaseProvider 并将您的其他组件包装在它周围

import { NativeBaseProvider } from 'native-base';

return (
<NativeBaseProvider>
  <View style={styles.container}>

    <Header />

    <ProductContainer />

  </View>
</NativeBaseProvider>
);

【讨论】：

评论不用于扩展讨论；这个对话是moved to chat。如果您有新问题，请提出新问题。

【解决方案2】：

如果您输入了原生提供程序，但仍然显示错误，请确保更改您的 Header，因为原生基础从 v3 向上删除了它，使用 HStack 代替，如果您想使用 Header 将原生基础版本降级为v2.12.14

【讨论】：

【解决方案3】：

import { NativeBaseProvider } from 'native-base';

export default function App() {
  return (
    <NativeBaseProvider>
      <View style={styles.container}>
        <Header />
        <ProductContainer />
        <StatusBar style="auto" />
      </View>
    </NativeBaseProvider>
  );
}

【讨论】：