有沒有在android中添加時間的功能？

Question

我有09:30作爲從數據庫中檢索的時間，我需要添加15分鐘才能獲得它作爲09:45。 是否有添加時間的功能？

Answer 1

String RevisedTime=cursor.getString(cursor.getColumnIndex("RevisedEstimatedDeliveryTime"));  

      // get hour and minute from time string 
      StringTokenizer st1 = new StringTokenizer(RevisedTime, ":"); 
      int j = 0; 
      int[] val = new int[st1.countTokens()]; 
      // iterate through tokens 
      while (st1.hasMoreTokens()) { 
       val[j] = Integer.parseInt(st1.nextToken()); 
       j++; 
      }`enter code here` 

      // call time add method with current hour, minute and minutesToAdd, 
      // return added time as a string 
      String dateRevisedEstimatedDeliveryTime = addTime(val[0], val[1], 15); 




public String addTime(int hour, int minute, int minutesToAdd) { 
     Calendar calendar = new GregorianCalendar(1990, 1, 1, hour, minute); 
     calendar.add(Calendar.MINUTE, minutesToAdd); 
     SimpleDateFormat sdf = new SimpleDateFormat("HH:mm"); 
     String date = sdf.format(calendar.getTime()); 
     return date; 
    } 

Answer 2

http://download.oracle.com/javase/1.5.0/docs/api/java/util/Calendar.html有你所需要的，使用它的add()方法。

Answer 3

嘗試這樣

final Calendar cld = Calendar.getInstance(); 
    cld.setTimeInMillis(time); 
    cld.add(Calendar.MINUTE,15) 

Answer 4

使用Calendar.add(Calendar.MINUTE,15)來獲取的