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fix

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This commit is contained in:
Junhui Chen 2025-08-07 00:17:33 +08:00
parent b1ba4edffc
commit 3469cfb332
1 changed files with 116 additions and 75 deletions
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183
app/(tabs)/ask.tsx
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@ -100,105 +100,141 @@ export default function AskScreen() {
useFocusEffect( useFocusEffect(
useCallback(() => { useCallback(() => {
webSocketManager.connect(); // 添加一个标志来检查组件是否已卸载
let isMounted = true;
// 确保在组件挂载时才连接
if (isMounted) {
webSocketManager.connect();
}
const handleChatStream = (message: WsMessage) => { const handleChatStream = (message: WsMessage) => {
// 确保组件仍然挂载
if (!isMounted) return;
if (message.type === 'ChatStream') { if (message.type === 'ChatStream') {
setUserMessages(prevMessages => { setUserMessages(prevMessages => {
const lastMessage = prevMessages[prevMessages.length - 1]; // 使用 try-catch 包装以防止错误导致应用崩溃
try {
const lastMessage = prevMessages[prevMessages.length - 1];
// 检查是否是有效的助手消息 // 检查是否是有效的助手消息
if (!lastMessage || lastMessage.role !== Assistant) { if (!lastMessage || lastMessage.role !== Assistant) {
return prevMessages;
}
// 创建新的消息数组
const newMessages = [...prevMessages];
if (typeof lastMessage.content === 'string') {
if (lastMessage.content === 'keepSearchIng') {
// 第一次收到流式消息，替换占位符
newMessages[newMessages.length - 1] = {
...lastMessage,
content: message.chunk
};
} else {
// 持续追加流式消息
newMessages[newMessages.length - 1] = {
...lastMessage,
content: lastMessage.content + message.chunk
};
}
} else if (Array.isArray(lastMessage.content)) {
// 如果 content 是数组，则更新第一个 text 部分
const textPartIndex = lastMessage.content.findIndex(p => p.type === 'text');
if (textPartIndex !== -1) {
const updatedContent = [...lastMessage.content];
updatedContent[textPartIndex] = {
...updatedContent[textPartIndex],
text: (updatedContent[textPartIndex].text || '') + message.chunk
};
newMessages[newMessages.length - 1] = {
...lastMessage,
content: updatedContent
};
}
}
return newMessages;
} catch (error) {
console.error('处理 ChatStream 消息时出错:', error);
// 发生错误时返回原始消息数组
return prevMessages; return prevMessages;
} }
// 创建新的消息数组
const newMessages = [...prevMessages];
if (typeof lastMessage.content === 'string') {
if (lastMessage.content === 'keepSearchIng') {
// 第一次收到流式消息，替换占位符
newMessages[newMessages.length - 1] = {
...lastMessage,
content: message.chunk
};
} else {
// 持续追加流式消息
newMessages[newMessages.length - 1] = {
...lastMessage,
content: lastMessage.content + message.chunk
};
}
} else {
// 如果 content 是数组，则更新第一个 text 部分
const textPartIndex = lastMessage.content.findIndex(p => p.type === 'text');
if (textPartIndex !== -1) {
const updatedContent = [...lastMessage.content];
updatedContent[textPartIndex] = {
...updatedContent[textPartIndex],
text: (updatedContent[textPartIndex].text || '') + message.chunk
};
newMessages[newMessages.length - 1] = {
...lastMessage,
content: updatedContent
};
}
}
return newMessages;
}); });
} }
}; };
const handleChatStreamEnd = (message: WsMessage) => { const handleChatStreamEnd = (message: WsMessage) => {
// 确保组件仍然挂载
if (!isMounted) return;
if (message.type === 'ChatStreamEnd') { if (message.type === 'ChatStreamEnd') {
setUserMessages(prevMessages => { setUserMessages(prevMessages => {
const lastMessage = prevMessages[prevMessages.length - 1]; // 使用 try-catch 包装以防止错误导致应用崩溃
try {
const lastMessage = prevMessages[prevMessages.length - 1];
// 检查是否是有效的助手消息 // 检查是否是有效的助手消息
if (!lastMessage || lastMessage.role !== Assistant) { if (!lastMessage || lastMessage.role !== Assistant) {
return prevMessages;
}
// 使用最终消息替换流式消息，确保 message.message 存在
if (message.message) {
const newMessages = [...prevMessages];
newMessages[newMessages.length - 1] = message.message as Message;
return newMessages;
} else {
// 如果最终消息为空，则移除 'keepSearchIng' 占位符
return prevMessages.filter(m =>
!(typeof m.content === 'string' && m.content === 'keepSearchIng')
);
}
} catch (error) {
console.error('处理 ChatStreamEnd 消息时出错:', error);
// 发生错误时返回原始消息数组
return prevMessages; return prevMessages;
} }
// 使用最终消息替换流式消息，确保 message.message 存在
if (message.message) {
const newMessages = [...prevMessages];
newMessages[newMessages.length - 1] = message.message as Message;
return newMessages;
} else {
// 如果最终消息为空，则移除 'keepSearchIng' 占位符
return prevMessages.filter(m =>
!(typeof m.content === 'string' && m.content === 'keepSearchIng')
);
}
}); });
} }
}; };
const handleError = (message: WsMessage) => { const handleError = (message: WsMessage) => {
// 确保组件仍然挂载
if (!isMounted) return;
if (message.type === 'Error') { if (message.type === 'Error') {
console.log(`WebSocket Error: ${message.code} - ${message.message}`); console.log(`WebSocket Error: ${message.code} - ${message.message}`);
setUserMessages(prevMessages => { setUserMessages(prevMessages => {
const lastMessage = prevMessages[prevMessages.length - 1]; // 使用 try-catch 包装以防止错误导致应用崩溃
try {
const lastMessage = prevMessages[prevMessages.length - 1];
// 检查是否是有效的助手消息且包含占位符 // 检查是否是有效的助手消息且包含占位符
if (!lastMessage || if (!lastMessage ||
lastMessage.role !== Assistant || lastMessage.role !== Assistant ||
typeof lastMessage.content !== 'string' || typeof lastMessage.content !== 'string' ||
lastMessage.content !== 'keepSearchIng') { lastMessage.content !== 'keepSearchIng') {
return prevMessages;
}
// 替换占位符为错误消息
const newMessages = [...prevMessages];
newMessages[newMessages.length - 1] = {
...lastMessage,
content: getWebSocketErrorMessage(message.code, t)
};
return newMessages;
} catch (error) {
console.error('处理 Error 消息时出错:', error);
// 发生错误时返回原始消息数组
return prevMessages; return prevMessages;
} }
// 替换占位符为错误消息
const newMessages = [...prevMessages];
newMessages[newMessages.length - 1] = {
...lastMessage,
content: getWebSocketErrorMessage(message.code, t)
};
return newMessages;
}); });
} }
}; };
@ -208,11 +244,16 @@ export default function AskScreen() {
webSocketManager.subscribe('Error', handleError); webSocketManager.subscribe('Error', handleError);
return () => { return () => {
// 设置组件卸载标志
isMounted = false;
// 清理订阅
webSocketManager.unsubscribe('ChatStream', handleChatStream); webSocketManager.unsubscribe('ChatStream', handleChatStream);
webSocketManager.unsubscribe('ChatStreamEnd', handleChatStreamEnd); webSocketManager.unsubscribe('ChatStreamEnd', handleChatStreamEnd);
webSocketManager.unsubscribe('Error', handleError); webSocketManager.unsubscribe('Error', handleError);
// 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 // 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
// webSocketManager.disconnect(); webSocketManager.disconnect();
}; };
}, [t]) }, [t])
); );