如果导航到React Native中其他屏幕，如何保持formik表单值

npm install formik

import React from 'react';
import { View, TextInput, Button } from 'react-native';
import { Formik } from 'formik';

const MyForm = () => {
  return (
    <Formik
      initialValues={{ name: '', email: '' }}
      onSubmit={values => console.log(values)}
    >
      {({ handleChange, handleSubmit, values }) => (
        <View>
          <TextInput
            onChangeText={handleChange('name')}
            value={values.name}
            placeholder="Name"
          />
          <TextInput
            onChangeText={handleChange('email')}
            value={values.email}
            placeholder="Email"
          />
          <Button onPress={handleSubmit} title="Submit" />
        </View>
      )}
    </Formik>
  );
};

export default MyForm;

import React, { useState } from 'react';
import { Button } from 'react-native';
import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';
import MyForm from './MyForm';

const Stack = createStackNavigator();

const App = () => {
  const [formValues, setFormValues] = useState({});

  const handleFormSubmit = values => {
    setFormValues(values);
    // 处理表单提交逻辑
  };

  return (
    <NavigationContainer>
      <Stack.Navigator>
        <Stack.Screen
          name="Home"
          component={MyForm}
          initialParams={{ handleFormSubmit }}
        />
        {/* 其他屏幕 */}
      </Stack.Navigator>
    </NavigationContainer>
  );
};

export default App;

import React from 'react';
import { View, Text, Button } from 'react-native';

const OtherScreen = ({ route }) => {
  const { handleFormSubmit } = route.params;

  const updateFormValues = () => {
    const newValues = { name: 'John', email: 'john@example.com' };
    handleFormSubmit(newValues);
  };

  return (
    <View>
      <Text>Other Screen</Text>
      <Button onPress={updateFormValues} title="Update Form Values" />
    </View>
  );
};

export default OtherScreen;