java 将日历设置为每月 X 天
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Set Calendar to X Day in Month
提问by jophde
I am trying to get a time down to the minute from a Calendar object built from four inputs: occurrence in month (3rd), day (Thursday), hour (1), minute(30), and am/pm. Also, if the time is in the past the month should increase by one.
我试图从由四个输入构建的 Calendar 对象将时间缩短到分钟：发生在月 (3rd)、日 (Thursday)、小时 (1)、分钟 (30) 和上午/下午。此外，如果时间在过去，则月份应增加一。
How do I set a a Calendar to this time?
如何将日历设置为这个时间？
This code seems to not set the day. The hour, minute, and am/pm are setting correctly though.
这段代码似乎没有设置日期。小时、分钟和上午/下午设置正确。
Calendar Setup:
日历设置：
long getTime() {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DAY_OF_WEEK_IN_MONTH, getDayOfWeekInMonth());
calendar.set(Calendar.DAY_OF_WEEK, getDayOfWeek());
calendar.set(Calendar.HOUR, getHour());
calendar.set(Calendar.MINUTE, getMinute());
calendar.set(Calendar.AM_PM, getAmPm());
if (System.currentTimeMillis() > calendar.getTimeInMillis()) {
calendar.add(Calendar.MONTH, 1);
}
return calendar.getTimeInMillis();
}
int getDayOfWeekInMonth() {
return weekOfMonthSpinner.getSelectedItemPosition() + 1;
}
int getDayOfWeek() {
switch(dayOfWeekSpinner.getSelectedItemPosition()) {
case 0:
return Calendar.SUNDAY;
case 1:
return Calendar.MONDAY;
case 2:
return Calendar.TUESDAY;
case 3:
return Calendar.WEDNESDAY;
case 4:
return Calendar.THURSDAY;
case 5:
return Calendar.FRIDAY;
case 6:
return Calendar.SATURDAY;
default:
return 0;
}
}
int getHour() {
return Integer.parseInt((String) hourSpinner.getSelectedItem());
}
int getMinute() {
return Integer.parseInt((String) minuteSpinner.getSelectedItem());
}
int getAmPm() {
switch(amPmSpinner.getSelectedItemPosition()) {
case 0:
return Calendar.AM;
case 1:
return Calendar.PM;
default:
return 0;
}
}
Spinner Setup:
微调器设置：
<string-array name="week_of_month">
<item>1st</item>
<item>2nd</item>
<item>3rd</item>
<item>4th</item>
</string-array>
<string-array name="day_of_week">
<item>Sunday</item>
<item>Monday</item>
<item>Tuesday</item>
<item>Wednesday</item>
<item>Thursday</item>
<item>Friday</item>
<item>Saturday</item>
</string-array>
<string-array name="hour">
<item>1</item>
<item>2</item>
<item>3</item>
<item>4</item>
<item>5</item>
<item>6</item>
<item>7</item>
<item>8</item>
<item>9</item>
<item>10</item>
<item>11</item>
<item>12</item>
</string-array>
<string-array name="minute">
<item>00</item>
<item>05</item>
<item>10</item>
<item>15</item>
<item>20</item>
<item>25</item>
<item>30</item>
<item>35</item>
<item>40</item>
<item>45</item>
<item>50</item>
<item>55</item>
</string-array>
<string-array name="am_pm">
<item>am</item>
<item>pm</item>
</string-array>
adapter = ArrayAdapter.createFromResource(getActivity(), R.array.week_of_month, R.layout.spinner_item);
adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
weekOfMonthSpinner.setAdapter(adapter);
adapter = ArrayAdapter.createFromResource(getActivity(), R.array.day_of_week, R.layout.spinner_item);
adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
dayOfWeekSpinner.setAdapter(adapter);
adapter = ArrayAdapter.createFromResource(getActivity(), R.array.hour, R.layout.spinner_item);
adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
hourSpinner.setAdapter(adapter);
adapter = ArrayAdapter.createFromResource(getActivity(), R.array.minute, R.layout.spinner_item);
adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
minuteSpinner.setAdapter(adapter);
adapter = ArrayAdapter.createFromResource(getActivity(), R.array.am_pm, R.layout.spinner_item);
adapter.setDropDownViewResource(R.layout.spinner_dropdown_item);
amPmSpinner.setAdapter(adapter);
回答by Subhrajyoti Majumder
Usecalendar.set(Calendar.WEEK_OF_MONTH, <week of the month>);and calendar.set(Calendar.DAY_OF_WEEK, 4);.
使用calendar.set(Calendar.WEEK_OF_MONTH, <week of the month>);和calendar.set(Calendar.DAY_OF_WEEK, 4);。
Example -
例子 -
Calendar calendar = Calendar.getInstance();
System.out.println("Before - "+calendar.getTime());
calendar.set(Calendar.WEEK_OF_MONTH, 3);
calendar.set(Calendar.DAY_OF_WEEK, 4);
System.out.println("After - "+calendar.getTime());
Result -
结果 -
Before - Tue Feb 12 23:23:28 IST 2013
After - Wed Feb 13 23:18:16 IST 2013
