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@ -4,7 +4,8 @@ import AskHello from "@/components/ask/hello";
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import SendMessage from "@/components/ask/send";
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import { ThemedText } from "@/components/ThemedText";
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import { fetchApi } from "@/lib/server-api-util";
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import { Message } from "@/types/ask";
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import { getWebSocketErrorMessage, webSocketManager, WsMessage } from "@/lib/websocket-util";
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import { Assistant, Message } from "@/types/ask";
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import { useFocusEffect, useLocalSearchParams, useRouter } from "expo-router";
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import { useCallback, useEffect, useRef, useState } from 'react';
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import { useTranslation } from "react-i18next";
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@ -97,92 +98,124 @@ export default function AskScreen() {
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};
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}, [isHello]);
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// useFocusEffect(
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// useCallback(() => {
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// webSocketManager.connect();
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useFocusEffect(
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useCallback(() => {
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webSocketManager.connect();
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// const handleChatStream = (message: WsMessage) => {
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// if (message.type === 'ChatStream') {
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// setUserMessages(prevMessages => {
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// const newMessages = [...prevMessages];
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// const lastMessage = newMessages[newMessages.length - 1];
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const handleChatStream = (message: WsMessage) => {
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if (message.type === 'ChatStream') {
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setUserMessages(prevMessages => {
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const lastMessage = prevMessages[prevMessages.length - 1];
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// if (lastMessage && lastMessage.role === Assistant) {
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// if (typeof lastMessage.content === 'string') {
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// if (lastMessage.content === 'keepSearchIng') {
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// // 第一次收到流式消息，替换占位符
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// lastMessage.content = message.chunk;
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// } else {
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// // 持续追加流式消息
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// lastMessage.content += message.chunk;
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// }
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// } else {
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// // 如果 content 是数组，则更新第一个 text 部分
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// const textPart = lastMessage.content.find(p => p.type === 'text');
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// if (textPart) {
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// textPart.text = (textPart.text || '') + message.chunk;
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// }
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// }
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// }
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// return newMessages;
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// });
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// }
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// };
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// 检查是否是有效的助手消息
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if (!lastMessage || lastMessage.role !== Assistant) {
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return prevMessages;
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}
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// const handleChatStreamEnd = (message: WsMessage) => {
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// if (message.type === 'ChatStreamEnd') {
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// setUserMessages(prevMessages => {
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// const newMessages = [...prevMessages];
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// const lastMessage = newMessages[newMessages.length - 1];
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// if (lastMessage && lastMessage.role === Assistant) {
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// // 使用最终消息替换流式消息，确保 message.message 存在
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// if (message.message) {
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// newMessages[newMessages.length - 1] = message.message as Message;
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// } else {
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// // 如果最终消息为空，则移除 'keepSearchIng' 占位符
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// return prevMessages.filter(m => !(typeof m.content === 'string' && m.content === 'keepSearchIng'));
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// }
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// }
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// return newMessages;
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// });
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// }
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// };
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// 创建新的消息数组
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const newMessages = [...prevMessages];
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// const handleError = (message: WsMessage) => {
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// if (message.type === 'Error') {
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// console.log(`WebSocket Error: ${message.code} - ${message.message}`);
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// // 可以在这里添加错误提示，例如替换最后一条消息为错误信息
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// setUserMessages(prev => {
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// // 创建新的数组和新的消息对象
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// return prev.map((msg, index) => {
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// if (index === prev.length - 1 &&
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// typeof msg.content === 'string' &&
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// msg.content === 'keepSearchIng') {
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// // 返回新的消息对象
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// return {
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// ...msg,
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// content: getWebSocketErrorMessage(message.code, t)
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// };
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// }
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// return msg;
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// });
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// });
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// }
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// };
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if (typeof lastMessage.content === 'string') {
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if (lastMessage.content === 'keepSearchIng') {
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// 第一次收到流式消息，替换占位符
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newMessages[newMessages.length - 1] = {
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...lastMessage,
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content: message.chunk
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};
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} else {
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// 持续追加流式消息
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newMessages[newMessages.length - 1] = {
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...lastMessage,
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content: lastMessage.content + message.chunk
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};
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}
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} else {
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// 如果 content 是数组，则更新第一个 text 部分
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const textPartIndex = lastMessage.content.findIndex(p => p.type === 'text');
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if (textPartIndex !== -1) {
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const updatedContent = [...lastMessage.content];
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updatedContent[textPartIndex] = {
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...updatedContent[textPartIndex],
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text: (updatedContent[textPartIndex].text || '') + message.chunk
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};
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// webSocketManager.subscribe('ChatStream', handleChatStream);
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// webSocketManager.subscribe('ChatStreamEnd', handleChatStreamEnd);
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// webSocketManager.subscribe('Error', handleError);
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newMessages[newMessages.length - 1] = {
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...lastMessage,
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content: updatedContent
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};
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}
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}
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// return () => {
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// webSocketManager.unsubscribe('ChatStream', handleChatStream);
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// webSocketManager.unsubscribe('ChatStreamEnd', handleChatStreamEnd);
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// webSocketManager.unsubscribe('Error', handleError);
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// // 可以在这里选择断开连接，或者保持连接以加快下次进入页面的速度
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// // webSocketManager.disconnect();
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// };
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// }, [])
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// );
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return newMessages;
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});
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}
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};
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const handleChatStreamEnd = (message: WsMessage) => {
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if (message.type === 'ChatStreamEnd') {
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setUserMessages(prevMessages => {
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const lastMessage = prevMessages[prevMessages.length - 1];
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// 检查是否是有效的助手消息
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if (!lastMessage || lastMessage.role !== Assistant) {
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return prevMessages;
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}
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// 使用最终消息替换流式消息，确保 message.message 存在
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if (message.message) {
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const newMessages = [...prevMessages];
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newMessages[newMessages.length - 1] = message.message as Message;
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return newMessages;
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} else {
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// 如果最终消息为空，则移除 'keepSearchIng' 占位符
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return prevMessages.filter(m =>
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!(typeof m.content === 'string' && m.content === 'keepSearchIng')
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);
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}
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});
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}
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};
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const handleError = (message: WsMessage) => {
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if (message.type === 'Error') {
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console.log(`WebSocket Error: ${message.code} - ${message.message}`);
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setUserMessages(prevMessages => {
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const lastMessage = prevMessages[prevMessages.length - 1];
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// 检查是否是有效的助手消息且包含占位符
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if (!lastMessage ||
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lastMessage.role !== Assistant ||
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typeof lastMessage.content !== 'string' ||
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lastMessage.content !== 'keepSearchIng') {
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return prevMessages;
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}
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// 替换占位符为错误消息
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const newMessages = [...prevMessages];
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newMessages[newMessages.length - 1] = {
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...lastMessage,
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content: getWebSocketErrorMessage(message.code, t)
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};
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return newMessages;
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});
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}
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};
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webSocketManager.subscribe('ChatStream', handleChatStream);
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webSocketManager.subscribe('ChatStreamEnd', handleChatStreamEnd);
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webSocketManager.subscribe('Error', handleError);
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return () => {
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webSocketManager.unsubscribe('ChatStream', handleChatStream);
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webSocketManager.unsubscribe('ChatStreamEnd', handleChatStreamEnd);
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webSocketManager.unsubscribe('Error', handleError);
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// 可以在这里选择断开连接，或者保持连接以加快下次进入页面的速度
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// webSocketManager.disconnect();
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};
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}, [t])
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);
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// 创建动画样式
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const welcomeStyle = useAnimatedStyle(() => {
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