30 lines
1.3 KiB
Plaintext
30 lines
1.3 KiB
Plaintext
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The file /home/project/src/hooks/useNetworkStatus.ts has been updated. Made 1 replacement.
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Here's the result of running `cat -n` on a snippet of the edited file:
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50→
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51→ window.addEventListener('online', handleOnline);
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52→ window.addEventListener('offline', handleOffline);
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53→
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54→ // 检测慢网络（使用轻量级 DNS 预解析代替 HTTP 请求）
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55→ const checkConnectionSpeed = async () => {
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56→ if (!navigator.onLine) return;
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57→
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58→ // 仅通过 navigator.connection API 检测（如果可用）
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59→ const connection = (navigator as any).connection;
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60→ if (connection) {
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61→ setState(prev => ({
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62→ ...prev,
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63→ isSlowConnection: connection.effectiveType === 'slow-2g' || connection.effectiveType === '2g'
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64→ }));
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65→ }
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66→ // 如果不支持 Connection API，则不进行主动探测，避免产生大量 502 错误
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67→ };
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68→
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69→ // 每60秒检测一次网络质量（降低频率）
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70→ const interval = setInterval(checkConnectionSpeed, 60000);
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71→ checkConnectionSpeed();
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72→
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73→ return () => {
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74→ window.removeEventListener('online', handleOnline);
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75→ window.removeEventListener('offline', handleOffline);
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76→ clearInterval(interval);
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