Question

我希望以早上05:05的格式显示时间，并存储在sqlite数据库中。请如何将其存储在db中以及如何更改时间格式。

这是我的代码：

edittime.setOnClickListener( new OnClickListener() {
   @Override
   public void onClick(View 
     final Calendar mcurrentTime = Calendar.getInstance();
     final int hour = mcurrentTime.get(Calendar.HOUR_OF_DAY);
     int minute = mcurrentTime.get(Calendar.MINUTE);
     TimePickerDialog mTimePicker;

     mTimePicker = new TimePickerDialog(CreatNotes.this, new TimePickerDialog.
         @Override
         public void onTimeSet(TimePicker timePicker, int hours, int minutes) {
           String AM_PM = " AM";
           String mm_precede = "";
           if (hours >= 12) {
              AM_PM = " PM";
              if (hours >=13 && hours < 24) {
                 hours -= 12;
              }
              else {
                 hours = 12;
              }
           } else if (hours == 0) {
              hours = 12;
           }
           if (minutes < 10) {
              mm_precede = "
                       edittime.setText( hours  + ":" + minutes +" "+  AM_PM);
                        }
                    }, hour, minute, 
                    mTimePicker.
                }
            } );

Answer 1

您应该以db格式（UNIX时间戳）存储日期，然后在从db中检索时以您希望的方式对其进行格式化。

Answer 2

long inputTime;
Calendar mCalendar;
mCalendar = Calendar.getInstance();

//这里是TimePickerDialog

new TimePickerDialog(SearchActivity.this, onTimeSetListener,
    mCalendar.get(Calendar.HOUR_OF_DAY), mCalendar.get(Calendar.MINUTE), false).show();


onTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
        @Override
        public void onTimeSet(TimePicker timePicker, int hour, int min) {
            Calendar c = Calendar.getInstance();
            c.set(Calendar.HOUR_OF_DAY, hour);
            c.set(Calendar.MINUTE, min);
            inputTime = c.getTime().getTime();
        }
    };

//将此inputTime保存在db中作为long值。

//用于格式转换的实用程序方法

public static String getFormattedTime(long milliSeconds, String dateFormat) {
// Create a DateFormatter object for displaying date in specified format.
SimpleDateFormat formatter = new SimpleDateFormat(dateFormat);

// Create a calendar object that will convert the date and time value in milliseconds to date.
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(milliSeconds);
return formatter.format(calendar.getTime());
}

//从db读取后，将long值（inputTime）传递给getFormattedTime（）方法以获取格式化时间。

String formatedTime = getFormattedTime(inputTime, Constants.TIME_12_HOUR_FORMAT);

以上午05:05的格式显示时间，并存储在sqlite数据库中

2 个答案: