在React Native中创建带有登录/注册选项卡的卡片

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

const LoginScreen = () => {
  const [email, setEmail] = useState('');
  const [password, setPassword] = useState('');

  // 其他必要的状态和函数

  return (
    <View style={styles.container}>
      // 登录/注册选项卡组件
    </View>
  );
};

const TabSelector = ({ selectedTab, setSelectedTab }) => (
  <View style={styles.tabSelector}>
    <TouchableOpacity
      style={[styles.tabButton, selectedTab === 'login' && styles.selectedTabButton]}
      onPress={() => setSelectedTab('login')}
    >
      <Text style={styles.tabButtonText}>登录</Text>
    </TouchableOpacity>
    <TouchableOpacity
      style={[styles.tabButton, selectedTab === 'register' && styles.selectedTabButton]}
      onPress={() => setSelectedTab('register')}
    >
      <Text style={styles.tabButtonText}>注册</Text>
    </TouchableOpacity>
  </View>
);

const LoginScreen = () => {
  const [selectedTab, setSelectedTab] = useState('login');
  const [email, setEmail] = useState('');
  const [password, setPassword] = useState('');

  // 其他必要的状态和函数

  return (
    <View style={styles.container}>
      <TabSelector selectedTab={selectedTab} setSelectedTab={setSelectedTab} />

      {selectedTab === 'login' ? (
        <View style={styles.tabContent}>
          <TextInput
            style={styles.input}
            placeholder="邮箱"
            value={email}
            onChangeText={text => setEmail(text)}
          />
          <TextInput
            style={styles.input}
            placeholder="密码"
            secureTextEntry
            value={password}
            onChangeText={text => setPassword(text)}
          />
          <TouchableOpacity style={styles.button} onPress={handleLogin}>
            <Text style={styles.buttonText}>登录</Text>
          </TouchableOpacity>
        </View>
      ) : (
        <View style={styles.tabContent}>
          // 注册相关输入框、按钮等组件
        </View>
      )}
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    padding: 16,
  },
  tabSelector: {
    flexDirection: 'row',
    marginBottom: 16,
  },
  tabButton: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    paddingVertical: 8,
    borderBottomWidth: 2,
    borderBottomColor: '#ccc',
  },
  selectedTabButton: {
    borderBottomColor: 'blue',
  },
  tabButtonText: {
    fontWeight: 'bold',
    fontSize: 16,
  },
  tabContent: {
    width: '100%',
    marginTop: 16,
  },
  input: {
    height: 40,
    borderColor: '#ccc',
    borderWidth: 1,
    marginBottom: 16,
    paddingHorizontal: 8,
  },
  button: {
    backgroundColor: 'blue',
    padding: 10,
    alignItems: 'center',
    borderRadius: 4,
  },
  buttonText: {
    color: 'white',
    fontWeight: 'bold',
  },
});