因此，这是我第一次使用 React Native，我正在创建一个应用程序来收集用户输入并使用表单参数呈现字符串集合，但是当我尝试填写输入字段时，我总是遇到相同的错误：

Cannot read property 'value' of undefined 

关于表单处理，我应该如何解决这个问题？感谢您的关注。 这是代码：

import {React, useState} from 'react';
import {
  TextInput,
  View,
  Text,
  SafeAreaView,
  StyleSheet,
  Button,
  ScrollView,
} from 'react-native';

const Home = () => {
  const [lines, setlines] = useState([
    {
      text: 'This is a default string',
      fontSize: 32,
      color: '#000000',
    },
  ]);
  const [line, setline] = useState({
    text: '',
    fontSize: '',
    color: '',
  });

  const handleSubmit = e => {
    setlines({...lines, line});
  };

  return (
    <View>
      <SafeAreaView>
        <Text style={styles.desc}>Insert your quote here:</Text>
        <TextInput
          style={styles.input}
          value={line?.text}
          onChangeText={e => setline({...line, [line?.text]: e.target.value})}
        />
        <Text style={styles.desc}>Insert choose font size:</Text>
        <TextInput
          keyboardType="numeric"
          style={styles.input}
          value={line?.fontSize}
          maxLength={3}
          onChangeText={e =>
            setline({...line, [line?.fontSize]: parseInt(e.target.value, 10)})
          }
        />
        <Text style={styles.desc}>Insert choose Hex color:</Text>
        <TextInput
          style={styles.input}
          value={`#${line?.color}`}
          maxLength={7}
          onChangeText={e => setline({...line, [line?.color]: e.target.value})}
        />
        <Button
          onPress={handleSubmit}
          title="Generate paragraph"
          color="#841584"
        />
      </SafeAreaView>
      <ScrollView>
        {lines.map((myLine, index) => (
          <Text
            key={index}
            // eslint-disable-next-line react-native/no-inline-styles
            style={{
              fontSize: myLine.fontSize,
              color: myLine.color,
              margin: 15,
            }}>
            {myLine.text}
          </Text>
        ))}
      </ScrollView>
    </View>
  );
};

const styles = StyleSheet.create({
  input: {
    height: 40,
    margin: 12,
    borderWidth: 1,
    padding: 10,
  },
  desc: {
    height: 40,
    margin: 'auto',
    padding: 10,
  },
});

export default Home;

尝试以内联方式处理输入，但没有解决问题