Android短信列表的时间显示

最新推荐文章于 2024-03-28 16:50:16 发布

转载最新推荐文章于 2024-03-28 16:50:16 发布 · 315 阅读

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Android的短信的时间的显示做的很精细，首先保存在短信数据库mmssms.db中的短信时间都是Long型的数字，查询动作结束，取到这个值之后，会做转换，具体转换的动作在MessageUtils.java的formatTimeStampString函数中完成；

时间转换    public static String formatTimeStampString(Context context, long when) {
        return formatTimeStampString(context, when, false);
    }

formatTimeStampString    public static String formatTimeStampString(Context context, long when, boolean fullFormat) {
        Time then = new Time();
        then.set(when);
        Time now = new Time();
        now.setToNow();

        // Basic settings for formatDateTime() we want for all cases.
        int format_flags = DateUtils.FORMAT_NO_NOON_MIDNIGHT |
                           DateUtils.FORMAT_ABBREV_ALL |
                           DateUtils.FORMAT_CAP_AMPM;

        // If the message is from a different year, show the date and year.
        if (then.year != now.year) {
            format_flags |= DateUtils.FORMAT_SHOW_YEAR | DateUtils.FORMAT_SHOW_DATE;
        } else if (then.yearDay != now.yearDay) {
            // If it is from a different day than today, show only the date.
            format_flags |= DateUtils.FORMAT_SHOW_DATE;
        } else {
            // Otherwise, if the message is from today, show the time.
            format_flags |= DateUtils.FORMAT_SHOW_TIME;
        }

        // If the caller has asked for full details, make sure to show the date
        // and time no matter what we've determined above (but still make showing
        // the year only happen if it is a different year from today).
        if (fullFormat) {
            format_flags |= (DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_TIME);
        }

        return DateUtils.formatDateTime(context, when, format_flags);
    }