Android开发处理时间的小方法
1、字符串转时间戳
public static String getString_time(String user_time) { String re_time = null; SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); Date d; try { d = sdf.parse(user_time); long l = d.getTime(); String str = String.valueOf(l); re_time = str.substring(0, 10); }catch (ParseException e) { // TODO Auto-generated catch block e.printStackTrace(); } return re_time; }2、获取当前的时间
public static String gettime(){ SimpleDateFormat sDateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); String date = sDateFormat.format(new java.util.Date()); return date; }3、今天是星期几？
public static String getway(){ final Calendar c = Calendar.getInstance(); c.setTimeZone(TimeZone.getTimeZone("GMT+8:00")); String mWay = String.valueOf(c.get(Calendar.DAY_OF_WEEK)); if("1".equals(mWay)){ mWay ="天"; }else if("2".equals(mWay)){ mWay ="一"; }else if("3".equals(mWay)){ mWay ="二"; }else if("4".equals(mWay)){ mWay ="三"; }else if("5".equals(mWay)){ mWay ="四"; }else if("6".equals(mWay)){ mWay ="五"; }else if("7".equals(mWay)){ mWay ="六"; } return mWay; }4、传进一个时间段，判断当前时间是否在这个区间时间内
public static boolean isInTime(String sourceTime, String curTime) { if (sourceTime == null || !sourceTime.contains("-") || !sourceTime.contains(":")) { throw new IllegalArgumentException("Illegal Argument arg:" + sourceTime); } if (curTime == null || !curTime.contains(":")) { throw new IllegalArgumentException("Illegal Argument arg:" + curTime); } String[] args = sourceTime.split("-"); SimpleDateFormat sdf = new SimpleDateFormat("HH:mm"); try { long now = sdf.parse(curTime).getTime(); long start = sdf.parse(args[0]).getTime(); long end = sdf.parse(args[1]).getTime(); if (args[1].equals("00:00")) { args[1] = "24:00"; } if (end < start) { if (now >= end && now < start) { return false; } else { return true; } } else { if (now >= start && now < end) { return true; } else { return false; } } } catch (ParseException e) { e.printStackTrace(); throw new IllegalArgumentException("Illegal Argument arg:" + sourceTime); } }5、传进一个时间，根据这个时间计算下一刻的时间
public static String computationTime(String time) { if (time.equals("")) return ""; int hour = Integer.valueOf(time.substring(0, 2)); int minute = Integer.valueOf(time.substring(3, 5)); if (minute + 1 == 60) { minute = 0; hour += 1; if (hour == 24) { hour = 0; } } else { minute += 1; } time = hour < 10 ? "0" + hour + ":" : hour + ":"; time += minute < 10 ? "0" + minute : minute + ""; return time; }