问题描述
- currentTimeMillis()中4小时
-
有个问题,如下函数,有一个名为cachetime
的参数,如何设置为4小时?设置4 * 3600000
?public static File getCache(String name, Context c, int cacheTime) { if (cacheTime <= 0) return null; File cache = new File(c.getCacheDir(), name); long now = System.currentTimeMillis(); if (cache.exists() && (now - cache.lastModified() < cacheTime)) return cache; return null; }
解决方案
// 4 hours * 60 (min/hour) * 60 (sec/min) * 1000 (msec/sec)
getCache(name, c, 4 * 3600 * 1000);
时间: 2024-11-09 13:38:08