TimeUtils 实用封装
发布于: 1 小时前
1.时间
我们在开发一款即时聊天的应用的过程中，在多个设计页面中，需要展示消息时间、通知时间、提醒时间等。这类时间可能是北京时间、24 小时制、12 小时制、带日期的多种展示需求，因此，决定在系统层封装一个 TimeUtils 用于业务层的使用和便利。
2.代码
import android.content.Context;import android.text.TextUtils;import android.widget.TextView;
import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Date;import java.util.Locale;
@SuppressWarnings("deprecation")public class TimeUtils {
// ///s 代表Simple日期格式：yyyy-MM-dd // ///f 代表Full日期格式：yyyy-MM-dd hh:mm:ss
public static final SimpleDateFormat ss_format = new SimpleDateFormat("MM-dd"); public static final SimpleDateFormat s_format = new SimpleDateFormat("yyyy-MM-dd"); public static final SimpleDateFormat f_format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
public static long s_str_2_long(String dateString) { try { Date d = s_format.parse(dateString); return d.getTime(); } catch (ParseException e) { e.printStackTrace(); } return 0; }
public static long f_str_2_long(String dateString) { try { Date d = f_format.parse(dateString); return d.getTime(); } catch (ParseException e) { e.printStackTrace(); } return 0; }
public static String ss_long_2_str(long timestamp) { return ss_format.format(new Date(timestamp)); }
public static String s_long_2_str(long timestamp) { return s_format.format(new Date(timestamp)); }
public static String f_long_2_str(long timestamp) { return f_format.format(new Date(timestamp)); }
/** * 获取字符串时间的年份 * * @param dateString * 格式为yyyy-MM-ss，或者yyyy-MM-dd HH:mm:ss * @return */ public static int getYear(String dateString) { try { Date d = s_format.parse(dateString); return d.getYear() + 1900;// 年份是基于格林威治时间，所以加上1900 } catch (ParseException e) { e.printStackTrace(); } return 0; }
/** * 获取字符串时间的月份 * * @param dateString * 格式为yyyy-MM-ss，或者yyyy-MM-dd hh:mm:ss * @return */ public static int getMonth(String dateString) { try { Date d = s_format.parse(dateString); return d.getMonth();// 月份从0-11 } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return 0; }
/** * 获取字符串时间的天 * * @param dateString * 格式为yyyy-MM-ss，或者yyyy-MM-dd hh:mm:ss * @return */ public static int getDayOfMonth(String dateString) { try { Date d = s_format.parse(dateString); return d.getDate(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return 0; }
public static int getHours(String timeString) { SimpleDateFormat formart = new SimpleDateFormat("HH:mm:ss"); try { Date date = formart.parse(timeString); return date.getHours(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return 0; }
public static int getMinutes(String timeString) { SimpleDateFormat formart = new SimpleDateFormat("HH:mm:ss"); try { Date date = formart.parse(timeString); return date.getMinutes(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return 0; }
public static int getSeconds(String timeString) { SimpleDateFormat formart = new SimpleDateFormat("HH:mm:ss"); try { Date date = formart.parse(timeString); return date.getSeconds(); } catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return 0; }
public static String getCurrentTime() { return f_format.format(new Date(System.currentTimeMillis())); }
/** * 在当前时间上加上多少毫秒，返回这个时间 * * @param mask * @return */ public static String getCurrentTimeMask(long mask) { return f_format.format(new Date(System.currentTimeMillis() + mask)); }
// /////////////////////以上是通用的，下面为特殊需求的//////////////////////// // /** // * 时间戳转换日期格式 // * // * @param timestamp // * 单位秒 // * @return // */ // public static String getCurrentTime(long timestamp) { // SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); // return f.format(new Date(timestamp * 1000)); // }
/** * 获取精简的日期 * * @param time * @return */ public static String getSimpleDate(String time) { SimpleDateFormat formater = new SimpleDateFormat("yyyy-MM-dd"); Date date = null; try { date = f_format.parse(time); return formater.format(date); } catch (ParseException e) { e.printStackTrace(); return ""; } }
/** * * @param time * @return */ public static String getSimpleDateTime(String time) { SimpleDateFormat formater = new SimpleDateFormat("yy-MM-dd HH:mm"); Date date = null; try { date = f_format.parse(time); return formater.format(date); } catch (ParseException e) { e.printStackTrace(); return ""; } }
public static String getSimpleTime(long cnt) { int hour = (int)(cnt/3600); int min = (int)(cnt % 3600 / 60); int second = (int)(cnt % 60); return String.format(Locale.CHINA,"%02d:%02d:%02d",hour,min,second); }
public static String getSimpleTime(String time) { SimpleDateFormat formater = new SimpleDateFormat("HH:mm"); Date date = null; try { date = f_format.parse(time); return formater.format(date); } catch (ParseException e) { e.printStackTrace(); return ""; } }
public static String getChatSimpleDate(String time) { SimpleDateFormat formater = new SimpleDateFormat("yy-MM-dd"); Date date = null; try { date = f_format.parse(time); return formater.format(date); } catch (ParseException e) { e.printStackTrace(); return ""; } }
public static String getTimeHM(String time) { SimpleDateFormat formater = new SimpleDateFormat("HH:mm"); Date date = null; try { date = f_format.parse(time); return formater.format(date); } catch (ParseException e) { e.printStackTrace(); return ""; } }
public static SimpleDateFormat friendly_format1 = new SimpleDateFormat("HH:mm"); public static SimpleDateFormat friendly_format2 = new SimpleDateFormat("MM-dd HH:mm");
/** * 获取友好的时间显示 * * @param time * 秒级别的时间戳 * @return */ public static String getFriendlyTimeDesc(Context context, int time) { String desc = ""; Date timeDate = new Date(time * 1000L); Date nowDate = new Date(); long delaySeconds = nowDate.getTime() / 1000 - time;// 相差的秒数
if (delaySeconds < 10) {// 小于10秒，显示刚刚 desc = context.getString(R.string.friendly_time_just_now);// 显示刚刚 } else if (delaySeconds <= 60) {// 小于1分钟，显示如“25秒前” desc = delaySeconds + context.getString(R.string.friendly_time_before_seconds); } else if (delaySeconds < 60 * 30) {// 小于30分钟，显示如“25分钟前” desc = (delaySeconds / 60) + context.getString(R.string.friendly_time_before_minute); } else if (delaySeconds < 60 * 60 * 24) {// 小于1天之内 if (nowDate.getDay() - timeDate.getDay() == 0) {// 同一天 desc = friendly_format1.format(timeDate); } else {// 前一天 desc = context.getString(R.string.friendly_time_yesterday);// + " " + friendly_format1.format(timeDate); } } else if (delaySeconds < 60 * 60 * 24 * 2) {// 小于2天之内 if (nowDate.getDay() - timeDate.getDay() == 1 || nowDate.getDay() - timeDate.getDay() == -6) {// 昨天 desc = context.getString(R.string.friendly_time_yesterday);// + " " + friendly_format1.format(timeDate); } else {// 前天 desc = context.getString(R.string.friendly_time_before_yesterday);// + " " + friendly_format1.format(timeDate); } } else if (delaySeconds < 60 * 60 * 24 * 3) {// 小于三天 if (nowDate.getDay() - timeDate.getDay() == 2 || nowDate.getDay() - timeDate.getDay() == -5) {// 前天 desc = context.getString(R.string.friendly_time_before_yesterday);// + " " + friendly_format1.format(timeDate); } // else 超过前天 }
if (TextUtils.isEmpty(desc)) { desc = friendly_format2.format(timeDate); } return desc; }
public static String getCollectionTimeDesc(Context context, int time) { String desc = ""; Date timeDate = new Date(time * 1000L); Date nowDate = new Date(); long delaySeconds = nowDate.getTime() / 1000 - time;// 相差的秒数
if (delaySeconds < 60 * 60 * 24) {// 小于1天之内 if (nowDate.getDay() - timeDate.getDay() == 0) {// 同一天 desc = friendly_format1.format(timeDate); } else {// 前一天 desc = context.getString(R.string.friendly_time_yesterday) + " " + friendly_format1.format(timeDate); } } else if (delaySeconds < 60 * 60 * 24 * 2) {// 小于2天之内 if (nowDate.getDay() - timeDate.getDay() == 1 || nowDate.getDay() - timeDate.getDay() == -6) {// 昨天 desc = context.getString(R.string.friendly_time_yesterday) + " " + friendly_format1.format(timeDate); } else {// 前天 desc = context.getString(R.string.friendly_time_before_yesterday) + " " + friendly_format1.format(timeDate); } } else if (delaySeconds < 60 * 60 * 24 * 3) {// 小于三天 if (nowDate.getDay() - timeDate.getDay() == 2 || nowDate.getDay() - timeDate.getDay() == -5) {// 前天 desc = context.getString(R.string.friendly_time_before_yesterday) + " " + friendly_format1.format(timeDate); } // else 超过前天 }
if (TextUtils.isEmpty(desc)) { desc = friendly_format2.format(timeDate); } return desc; }
public static String sk_time_friendly_format2(long time) { return friendly_format2.format(new Date(time)); }
public static String sk_time_s_long_2_str(long time) { return s_long_2_str(time * 1000); }
public static String sk_time_f_long_2_str(long time) { return f_long_2_str(time * 1000); }
public static String sk_time_ss_long_2_str(long time) { return ss_long_2_str(time * 1000); }
public static long sk_time_s_str_2_long(String dateString) { return s_str_2_long(dateString) / 1000; }
public static int sk_time_current_time() { return (int) (System.currentTimeMillis() / 1000); }
private static SimpleDateFormat hm_formater = new SimpleDateFormat("HH:mm");
public static String sk_time_long_to_hm_str(long time) { try { return hm_formater.format(new Date(time * 1000)); } catch (Exception e) { e.printStackTrace(); } return ""; }
public static String sk_time_long_to_chat_time_str(long time) { String date1 = sk_time_s_long_2_str(time); String date2 = sk_time_s_long_2_str(System.currentTimeMillis() / 1000); if (date1.compareToIgnoreCase(date2) == 0) {// 是同一天 return sk_time_long_to_hm_str(time); } else { return long_to_yMdHm_str(time * 1000); } }
public static final SimpleDateFormat sk_format_1 = new SimpleDateFormat("yyyy-MM-dd HH:mm");
// 日期加小时的字符串 public static String long_to_yMdHm_str(long time) { return sk_format_1.format(new Date(time)); }
public static long sk_time_yMdHm_str_to_long(String time) { try { return sk_format_1.parse(time).getTime() / 1000; } catch (ParseException e) { e.printStackTrace(); } return 0; }
public static int yMdHm_getYear(String dateString) { try { Date d = sk_format_1.parse(dateString); return d.getYear() + 1900;// 年份是基于格林威治时间，所以加上1900 } catch (ParseException e) { e.printStackTrace(); } return 0; }
public static int yMdHm_getMonth(String dateString) { try { Date d = sk_format_1.parse(dateString); return d.getMonth();// 月份从0-11 } catch (ParseException e) { e.printStackTrace(); } return 0; }
public static int yMdHm_getDayOfMonth(String dateString) { try { Date d = sk_format_1.parse(dateString); return d.getDate(); } catch (ParseException e) { e.printStackTrace(); } return 0; }
public static int yMdHm_getHours(String timeString) { try { Date date = sk_format_1.parse(timeString); return date.getHours(); } catch (ParseException e) { e.printStackTrace(); } return 0; }
public static int yMdHm_getMinutes(String timeString) { try { Date date = sk_format_1.parse(timeString); return date.getMinutes(); } catch (ParseException e) { e.printStackTrace(); } return 0; }
/** * * @param textView * @param time * 时间戳/1000 * @return */ public static long getSpecialBeginTime(TextView textView, long time) { long currentTime = System.currentTimeMillis() / 1000; if (time > currentTime) { time = currentTime; } textView.setText(sk_time_s_long_2_str(time)); return time; }
/** * * @param textView * @param time * 时间戳/1000 * @return */ public static long getSpecialEndTime(TextView textView, long time) { long currentTime = System.currentTimeMillis() / 1000; if (time == 0 || time > currentTime - 24 * 60 * 60) { textView.setText(R.string.to_this_day); return 0; } textView.setText(sk_time_s_long_2_str(time)); return time; }
public static int sk_time_age(long birthday) { int age = (new Date().getYear()) - (new Date(birthday * 1000).getYear()); if (age < 0 || age > 100) { return 25; } return age; }
public static String getDurationDisplay(int second) { StringBuilder sb = new StringBuilder(); if (second > 3600) second %= 3600; sb.append(twoBit(second / 60)).append(":").append(twoBit(second % 60)); return sb.toString(); }
private static String twoBit(int i) { if (i < 10) { return "0" + i; } else { return String.valueOf(i); } }
}复制代码
3.总结
sk_time_current_time：the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC. 获取当前的系统时间减去 1970 年 1 月 1 日的时间差，单位为秒，用于记录时间戳
sk_time_long_to_chat_time_str: 自适应将 long 型时间转换成字符串，内部会自动 判断是否加上日期，若是当天，那么就仅显示 小时:分钟，否则显示 日期 小时:分钟
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发布于: 1 小时前阅读数: 3
版权声明: 本文为 InfoQ 作者【Changing Lin】的原创文章。
原文链接:【http://xie.infoq.cn/article/a4e20f900fc33362483372750】。文章转载请联系作者。
Changing Lin
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获得机遇的手段远超于固有常规之上~ 2020.04.29 加入
我能做的，就是调整好自己的精神状态，以最佳的面貌去面对那些未曾经历过得事情，对生活充满热情和希望。
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