适用于AndroidJava的“时间以前”库

适用于Android / Java的“时间/以前”库

通过Google I / O 2012应用程序：

private static final int SECOND_MILLIS = 1000;private static final int MINUTE_MILLIS = 60 * SECOND_MILLIS;private static final int HOUR_MILLIS = 60 * MINUTE_MILLIS;private static final int DAY_MILLIS = 24 * HOUR_MILLIS;public static String getTimeAgo(long time, Context ctx) {    if (time < 1000000000000L) {        // if timestamp given in seconds, convert to millis        time *= 1000;    }    long now = getCurrentTime(ctx);    if (time > now || time <= 0) {        return null;    }    // TODO: localize    final long diff = now - time;    if (diff < MINUTE_MILLIS) {        return "just now";    } else if (diff < 2 * MINUTE_MILLIS) {        return "a minute ago";    } else if (diff < 50 * MINUTE_MILLIS) {        return diff / MINUTE_MILLIS + " minutes ago";    } else if (diff < 90 * MINUTE_MILLIS) {        return "an hour ago";    } else if (diff < 24 * HOUR_MILLIS) {        return diff / HOUR_MILLIS + " hours ago";    } else if (diff < 48 * HOUR_MILLIS) {        return "yesterday";    } else {        return diff / DAY_MILLIS + " days ago";    }}