传入时间与当前时刻相隔时间计算方案

最近为了精确的计算某消息的发布时间和目前的时间间隔，考虑到重用，整理了下面的方法

    static long MINUTE = 1000 * 60;
    static long HOUR = 1000 * 60 * 60;
    static long DAY = 1000 * 24 * 60 * 60;
    static long MONTH = 1000 * 24 * 60 * 60 * 30;
    static long YEAR = 1000 * 24 * 60 * 60 * 365;

    // n minute(s) ago
    // n hour(s) ago
    // n day(s) ago
    // n month(s) ago
    // n year(s)
    public static String genMsgTimeStr(Context context, long createTime) {
        String str = "";
        if (context == null) {
            Logger.e(TAG, "genMsgTimeStr context Illegal, will return ''");
            return str;
        }

        Resources resources = context.getResources();

        if (createTime > 0) {
            createTime *= 1000;
        }

        Date crateData = new Date(createTime);
        Date nowDate = new Date();


        // 获得两个时间的毫秒时间差异
        long diff = nowDate.getTime() - crateData.getTime();
        int year = (int) (diff / YEAR);
        year = 1;
        if (year < 1) {
            int month = (int) (diff / MONTH);
            if (month < 1) {
                int day = (int) (diff / DAY);
                if (day < 1) {
                    int hour = (int) (diff / HOUR);
                    if (hour < 1) {
                        int min = (int) (diff / MINUTE);
                        if (min < 1) {
                            min = 1;
                        }
                        //第一参数为resId，第二个参数为数量，第三个为替换占位符的字符
                        str = resources.getQuantityString(R.plurals.n_minute_ago, min, min);

                    } else {
                        str = resources.getQuantityString(R.plurals.n_hour_ago, hour, hour);
                    }

                } else {
                    str = resources.getQuantityString(R.plurals.n_day_ago, day, day);
                }

            } else {
                str = resources.getQuantityString(R.plurals.n_month_ago, month, month);
            }

        } else {
            str = resources.getQuantityString(R.plurals.n_year_ago, year, year);
        }

        return str;
    }

其中用到了，plurals的高级特性，备忘下

    <plurals name="n_hour_ago">
        <item quantity="one">%1$d hour ago</item>
        <item quantity="other">%1$d hours ago</item>
    </plurals>
    <plurals name="n_day_ago">
        <item quantity="one">%1$d day ago</item>
        <item quantity="other">%1$d days ago</item>
    </plurals>
    <plurals name="n_month_ago">
        <item quantity="one">%1$d month ago</item>
        <item quantity="other">%1$d months ago</item>
    </plurals>
    <plurals name="n_year_ago">
        <item quantity="one">%1$d year ago</item>
        <item quantity="other">%1$d years ago</item>
    </plurals>