Android时间转换星期 昨天 今天工具
16lz
2021-01-26
这是一个时间转换工具类，可以转换成，昨天，今天下午，今天上午，还可以判断是星期几。
上代码
显示格式：
1，下面的图片对应第一个方法的效果：
2，下面的图对应的第二个方法效果：
3，下面的图片是第三个方法的效果。
import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;/** * 时间转换工具 */public class TimeUtil { private TimeUtil(){} /** * 时间转化为显示字符串 * * @param timeStamp 单位为秒 */ public static String getTimeStr(long timeStamp){ if (timeStamp==0) return ""; Calendar inputTime = Calendar.getInstance(); inputTime.setTimeInMillis(timeStamp*1000); Date currenTimeZone = inputTime.getTime(); Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.HOUR_OF_DAY, 23); calendar.set(Calendar.MINUTE, 59); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); calendar.set(Calendar.MILLISECOND, 0); if (calendar.before(inputTime)){ SimpleDateFormat sdf = new SimpleDateFormat("HH:mm"); return sdf.format(currenTimeZone); } calendar.add(Calendar.DAY_OF_MONTH,-1); if (calendar.before(inputTime)){ return "昨天"; }else{ calendar.add(Calendar.DAY_OF_MONTH, -5); if (calendar.before(inputTime)){ return getWeekDayStr(inputTime.get(Calendar.DAY_OF_WEEK)); } else { calendar.set(Calendar.DAY_OF_MONTH, 1); calendar.set(Calendar.MONTH, Calendar.JANUARY); int year = inputTime.get(Calendar.YEAR); int month = inputTime.get(Calendar.MONTH); int day = inputTime.get(Calendar.DAY_OF_MONTH); return year+"/"+month+"/"+day; } } } /** * 群发使用的时间转换 */ public static String multiSendTimeToStr(long timeStamp) { if (timeStamp==0) return ""; Calendar inputTime = Calendar.getInstance(); String timeStr = timeStamp + ""; if(timeStr.length() == 10){ timeStamp = timeStamp*1000; } inputTime.setTimeInMillis(timeStamp); Date currenTimeZone = inputTime.getTime(); Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); calendar.set(Calendar.MILLISECOND, 0); if (calendar.before(inputTime)){ SimpleDateFormat sdf = new SimpleDateFormat("HH:mm"); return sdf.format(currenTimeZone); } calendar.add(Calendar.DAY_OF_MONTH,-1); if (calendar.before(inputTime)){ SimpleDateFormat sdf = new SimpleDateFormat("HH:mm"); return "昨天"; }else { calendar.add(Calendar.DAY_OF_MONTH, -5); if (calendar.before(inputTime)){ return getWeekDayStr(inputTime.get(Calendar.DAY_OF_WEEK)); } else{ calendar.set(Calendar.DAY_OF_MONTH, 1); calendar.set(Calendar.MONTH, Calendar.JANUARY); if (calendar.before(inputTime)){ SimpleDateFormat sdf = new SimpleDateFormat("M"+"/"+"d"+" "); String temp1 = sdf.format(currenTimeZone); SimpleDateFormat sdf1 = new SimpleDateFormat("HH:mm"); String temp2 = sdf1.format(currenTimeZone); return temp1+temp2; }else{ SimpleDateFormat sdf = new SimpleDateFormat("yyyy"+"/"+"M"+"/"+"d"+" "); String temp1 = sdf.format(currenTimeZone); SimpleDateFormat sdf1 = new SimpleDateFormat("HH:mm"); String temp2 = sdf1.format(currenTimeZone); return temp1+temp2; } } } }/** * 时间转化为聊天界面显示字符串 * * @param timeStamp 单位为秒 */ public static String getChatTimeStr(long timeStamp){ if (timeStamp==0) return ""; Calendar inputTime = Calendar.getInstance(); String timeStr = timeStamp + ""; if(timeStr.length() == 10){ timeStamp = timeStamp*1000; } inputTime.setTimeInMillis(timeStamp); Date currenTimeZone = inputTime.getTime(); Calendar calendar = Calendar.getInstance();// if (calendar.before(inputTime)){// //当前时间在输入时间之前// SimpleDateFormat sdf = new SimpleDateFormat("yyyy" + "年"+"MM"+"月"+"dd"+"日");// return sdf.format(currenTimeZone);// } calendar.set(Calendar.HOUR_OF_DAY, 0); calendar.set(Calendar.MINUTE, 0); calendar.set(Calendar.SECOND, 0); calendar.set(Calendar.MILLISECOND, 0); if (calendar.before(inputTime)){ SimpleDateFormat sdf = new SimpleDateFormat("h:mm"); return timeFormatStr(inputTime,sdf.format(currenTimeZone)); } calendar.add(Calendar.DAY_OF_MONTH,-1); if (calendar.before(inputTime)){ SimpleDateFormat sdf = new SimpleDateFormat("h:mm"); return "昨天"+" "+timeFormatStr(inputTime, sdf.format(currenTimeZone)); }else{ calendar.set(Calendar.DAY_OF_MONTH, 1); calendar.set(Calendar.MONTH, Calendar.JANUARY); if (calendar.before(inputTime)){ SimpleDateFormat sdf = new SimpleDateFormat("M"+"月"+"d"+"日"); String temp1 = sdf.format(currenTimeZone); SimpleDateFormat sdf1 = new SimpleDateFormat("h:mm"); String temp2 = timeFormatStr(inputTime, sdf1.format(currenTimeZone)); return temp1+temp2; }else{ SimpleDateFormat sdf = new SimpleDateFormat("yyyy"+"年"+"M"+"月"+"d"+"日"); String temp1 = sdf.format(currenTimeZone); SimpleDateFormat sdf1 = new SimpleDateFormat("h:mm"); String temp2 = timeFormatStr(inputTime, sdf1.format(currenTimeZone)); return temp1+temp2; } } } /** * 24小时制转化成12小时制 * * @param strDay */ public static String timeFormatStr(Calendar calendar,String strDay) { String tempStr = ""; int hour = calendar.get(Calendar.HOUR_OF_DAY); if (hour > 11) { tempStr = "下午"+" " + strDay; } else { tempStr = "上午"+" " + strDay; } return tempStr; } /** * 时间转化为星期 * * @param indexOfWeek 星期的第几天 */ public static String getWeekDayStr(int indexOfWeek){ String weekDayStr = ""; switch (indexOfWeek) { case 1: weekDayStr = "星期日"; break; case 2: weekDayStr = "星期一"; break; case 3: weekDayStr = "星期二"; break; case 4: weekDayStr = "星期三"; break; case 5: weekDayStr = "星期四"; break; case 6: weekDayStr = "星期五"; break; case 7: weekDayStr = "星期六"; break; } return weekDayStr; } /** * 将时间戳格式化，13位的转为10位 * @param timestamp * @return */ public static long timestampFormate(long timestamp){ String timestampStr = timestamp + ""; if(timestampStr.length() == 13){ timestamp = timestamp/1000; } return timestamp; }更多相关文章
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