我正在尝试从下面的 DateTimePicker 类中以这种格式“2011 年 10 月 12 日星期五”获取日期。我是日期时间选择器的新手，并在网上找到了此代码。当我修改它时，我得到以下输出“2013 年 4 月 17 日 15:44:33”，但我想得到“2013 年 4 月 17 日星期二”。这是日期选择器类
public class DateTimePicker implements OnClickListener
{
private DatePicker datePicker;
private TimePicker timePicker;
private ViewSwitcher viewSwitcher;
private final int SET_DATE=100,SET_TIME=101,SET=102,CANCEL=103;
private Button btn_setDate,btn_setTime,btn_set,btn_cancel;
private Calendar calendar_date=null;
private Activity activity;
private ICustomDateTimeListener iCustomDateTimeListener = null;
private Dialog dialog;
private boolean is24HourView = true;
public DateTimePicker(Activity a,ICustomDateTimeListener customDateTimeListener)
{
activity = a;
iCustomDateTimeListener = customDateTimeListener;
dialog = new Dialog(activity);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
View dialogView = getDateTimePickerLayout();
dialog.setContentView(dialogView);
}
public View getDateTimePickerLayout()
{
LinearLayout.LayoutParams linear_match_wrap = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.FILL_PARENT);
LinearLayout.LayoutParams linear_wrap_wrap = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT);
FrameLayout.LayoutParams frame_match_wrap = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.FILL_PARENT, FrameLayout.LayoutParams.WRAP_CONTENT);
LinearLayout.LayoutParams button_params = new LinearLayout.LayoutParams(0, LinearLayout.LayoutParams.WRAP_CONTENT,1.0f);
LinearLayout linear_main = new LinearLayout(activity);
linear_main.setLayoutParams(linear_match_wrap);
linear_main.setOrientation(LinearLayout.VERTICAL);
linear_main.setGravity(Gravity.CENTER);
LinearLayout linear_child = new LinearLayout(activity);
linear_child.setLayoutParams(linear_wrap_wrap);
linear_child.setOrientation(LinearLayout.VERTICAL);
LinearLayout linear_top = new LinearLayout(activity);
linear_top.setLayoutParams(linear_match_wrap);
btn_setDate = new Button(activity);
btn_setDate.setLayoutParams(button_params);
btn_setDate.setText("Set Date");
btn_setDate.setId(SET_DATE);
btn_setDate.setOnClickListener(this);
btn_setDate.setVisibility(View.GONE);
//55
btn_setTime = new Button(activity);
btn_setTime.setLayoutParams(button_params);
btn_setTime.setText("Set Time");
btn_setTime.setId(SET_TIME);
btn_setTime.setOnClickListener(this);
btn_setTime.setVisibility(View.GONE);
linear_top.addView(btn_setDate);
linear_top.addView(btn_setTime);
viewSwitcher = new ViewSwitcher(activity);
viewSwitcher.setLayoutParams(frame_match_wrap);
datePicker = new DatePicker(activity);
timePicker = new TimePicker(activity);
viewSwitcher.addView(timePicker);
viewSwitcher.addView(datePicker);
LinearLayout linear_bottom = new LinearLayout(activity);
linear_match_wrap.topMargin = 8;
linear_bottom.setLayoutParams(linear_match_wrap);
btn_set = new Button(activity);
btn_set.setLayoutParams(button_params);
btn_set.setText("Set");
btn_set.setId(SET);
btn_set.setOnClickListener(this);
btn_cancel = new Button(activity);
btn_cancel.setLayoutParams(button_params);
btn_cancel.setText("Cancel");
btn_cancel.setId(CANCEL);
btn_cancel.setOnClickListener(this);
linear_bottom.addView(btn_set);
linear_bottom.addView(btn_cancel);
linear_child.addView(linear_top);
linear_child.addView(viewSwitcher);
linear_child.addView(linear_bottom);
linear_main.addView(linear_child);
return linear_main;
}
public void showDialog()
{
if(!dialog.isShowing())
{
if(calendar_date==null)
calendar_date = Calendar.getInstance();
timePicker.setIs24HourView(is24HourView);
timePicker.setCurrentHour(calendar_date.get(Calendar.HOUR_OF_DAY));
timePicker.setCurrentMinute(calendar_date.get(Calendar.MINUTE));
datePicker.updateDate(calendar_date.get(Calendar.YEAR),calendar_date.get(Calendar.MONTH), calendar_date.get(Calendar.DATE));
dialog.show();
btn_setDate.performClick();
}
}
public void dismissDialog()
{
if(!dialog.isShowing())
dialog.dismiss();
}
public void setDate(Calendar calendar)
{
if(calendar!=null)
calendar_date = calendar;
}
public void setDate(Date date)
{
if(date!=null)
{
calendar_date = Calendar.getInstance();
calendar_date.setTime(date);
}
}
public void setDate(int year,int month,int day)
{
if( month<12 && month>=0 && day<32 && day>=0 && year>100 && year<3000)
{
calendar_date = Calendar.getInstance();
calendar_date.set(year, month, day);
}
}
public void setTimeIn24HourFormat(int hourIn24Format,int minute)
{
if(hourIn24Format<24 && hourIn24Format>=0 && minute>=0 && minute<60)
{
if(calendar_date==null)
calendar_date = Calendar.getInstance();
calendar_date.set(calendar_date.get(Calendar.YEAR),calendar_date.get(Calendar.MONTH), calendar_date.get(Calendar.DAY_OF_MONTH),hourIn24Format, minute);
is24HourView = true;
}
}
public void setTimeIn12HourFormat(int hourIn12Format,int minute,boolean isAM)
{
if(hourIn12Format<13 && hourIn12Format>0 && minute>=0 && minute<60)
{
if(hourIn12Format==12)
hourIn12Format = 0;
int hourIn24Format = hourIn12Format;
if(!isAM)
hourIn24Format += 12;
if(calendar_date==null)
calendar_date = Calendar.getInstance();
calendar_date.set(calendar_date.get(Calendar.YEAR),calendar_date.get(Calendar.MONTH), calendar_date.get(Calendar.DAY_OF_MONTH),hourIn24Format,minute);
is24HourView = false;
}
}
public void set24HourFormat(boolean is24HourFormat)
{
is24HourView = is24HourFormat;
}
public interface ICustomDateTimeListener
{
public void onSet(Calendar calendarSelected,Date dateSelected,int year,String monthFullName,String monthShortName,int monthNumber,int date,String weekDayFullName,String weekDayShortName);
public void onCancel();
}
@Override
public void onClick(View v)
{
switch (v.getId())
{
case SET_DATE: btn_setTime.setEnabled(true);
btn_setDate.setEnabled(false);
viewSwitcher.showNext();
break;
/* case SET_TIME: btn_setTime.setEnabled(false);
btn_setDate.setEnabled(true);
viewSwitcher.showPrevious();
break;
*/
case SET: if(dialog.isShowing())
dialog.dismiss();
if(iCustomDateTimeListener!=null)
{
int month = datePicker.getMonth();
int year = datePicker.getYear();
int day = datePicker.getDayOfMonth();
calendar_date.set(year, month, day);
iCustomDateTimeListener.onSet(calendar_date, calendar_date.getTime(), calendar_date.get(Calendar.YEAR), getMonthFullName(calendar_date.get(Calendar.MONTH)), getMonthShortName(calendar_date.get(Calendar.MONTH)),calendar_date.get(Calendar.MONTH), calendar_date.get(Calendar.DAY_OF_MONTH),getWeekDayFullName(calendar_date.get(Calendar.DAY_OF_WEEK)),getWeekDayShortName(calendar_date.get(Calendar.DAY_OF_WEEK)));
}
// resetData();
break;
case CANCEL: if(dialog.isShowing())
dialog.dismiss();
if(iCustomDateTimeListener!=null)
iCustomDateTimeListener.onCancel();
resetData();
break;
}
}
/**
* @param date date in String
* @param fromFormat format of your <b>date</b> eg: if your date is 2011-07-07 09:09:09 then your format will be <b>yyyy-MM-dd hh:mm:ss</b>
* @param toFormat format to which you want to convert your <b>date</b> eg: if required format is 31 July 2011 then the toFormat should be <b>d MMMM yyyy</b>
* @return formatted date
*/
public static String convertDate(String date,String fromFormat,String toFormat)
{
String formattedDate="";
try
{
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(fromFormat);
Date d = simpleDateFormat.parse(date);
Calendar calendar = Calendar.getInstance();
calendar.setTime(d);
simpleDateFormat = new SimpleDateFormat(toFormat);
simpleDateFormat.setCalendar(calendar);
formattedDate = simpleDateFormat.format(calendar.getTime());
} catch (Exception e)
{
if(e!=null)
e.printStackTrace();
}
return formattedDate;
}
/**
* @param monthNumber Month Number starts with 0. For <b>January</b> it is <b>0</b> and for <b>December</b> it is <b>11</b>.
* @return
*/
private String getMonthFullName(int monthNumber)
{
String monthName="";
if(monthNumber>=0 && monthNumber<12)
try
{
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.MONTH, monthNumber);
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMMM");
simpleDateFormat.setCalendar(calendar);
monthName = simpleDateFormat.format(calendar.getTime());
} catch (Exception e)
{
if(e!=null)
e.printStackTrace();
}
return monthName;
}
/**
* @param monthNumber Month Number starts with 0. For <b>January</b> it is <b>0</b> and for <b>December</b> it is <b>11</b>.
* @return
*/
private String getMonthShortName(int monthNumber)
{
String monthName="";
if(monthNumber>=0 && monthNumber<12)
try
{
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.MONTH, monthNumber);
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("MMM");
simpleDateFormat.setCalendar(calendar);
monthName = simpleDateFormat.format(calendar.getTime());
}
catch (Exception e)
{
if(e!=null)
e.printStackTrace();
}
return monthName;
}
/**
* @param weekDayNumber Week Number starts with 1. For <b>Sunday</b> it is <b>1</b> and for <b>Saturday</b> it is <b>7</b>.
* @return
*/
private String getWeekDayFullName(int weekDayNumber)
{
String weekName = "";
if(weekDayNumber>0 && weekDayNumber<8)
{
try {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DAY_OF_WEEK, weekDayNumber);
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EEEE");
simpleDateFormat.setCalendar(calendar);
weekName = simpleDateFormat.format(calendar.getTime());
} catch (Exception e)
{
if(e!=null)
e.printStackTrace();
}
}
return weekName;
}
/**
* @param weekDayNumber Week Number starts with 1. For <b>Sunday</b> it is <b>1</b> and for <b>Saturday</b> it is <b>7</b>.
* @return
*/
private String getWeekDayShortName(int weekDayNumber)
{
String weekName = "";
if(weekDayNumber>0 && weekDayNumber<8)
{
try {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DAY_OF_WEEK, weekDayNumber);
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("EE");
simpleDateFormat.setCalendar(calendar);
weekName = simpleDateFormat.format(calendar.getTime());
} catch (Exception e) {
if(e!=null)
e.printStackTrace();
}
}
return weekName;
}
private int getHourIn12Format(int hour24)
{
int hourIn12Format = 0;
if(hour24==0)
hourIn12Format = 12;
else if(hour24<=12)
hourIn12Format = hour24;
else
hourIn12Format = hour24-12;
return hourIn12Format;
}
private String getAMPM(Calendar calendar)
{
String ampm = (calendar.get(Calendar.AM_PM)==(Calendar.AM))? "AM":"PM";
return ampm;
}
private void resetData()
{
calendar_date = null;
is24HourView = true;
}
public static String pad(int i)
{
return i<=9?"0"+i:""+i;
}
public static String getSecondsFromMillis(long milliseconds) {
return "" + ((int) ((milliseconds / 1000) % 60));
}
public static String getMinutesFromMillis(long milliseconds) {
return "" + (int) ((milliseconds / (1000 * 60)) % 60);
}
public static String getHoursFromMillis(long milliseconds) {
return "" + (int) ((milliseconds / (1000 * 60 * 60)) % 24);
}
/**
* @param monthNumber Month Number starts with 0. For <b>January</b> it is <b>0</b> and for <b>December</b> it is <b>11</b>.
* @param year
* @return
*/
public static int getDaysInMonth(int monthNumber,int year)
{
int days=0;
if(monthNumber>=0 && monthNumber<12){
try
{
Calendar calendar = Calendar.getInstance();
int date = 1;
calendar.set(year, monthNumber, date);
days = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
} catch (Exception e)
{
if(e!=null)
e.printStackTrace();
}
}
return days;
}
/**
* @param monthNumber Month Number starts with 0. For <b>January</b> it is <b>0</b> and for <b>December</b> it is <b>11</b>.
* @return
*/
public static int getDaysInMonthInPresentYear(int monthNumber)
{
int days=0;
if(monthNumber>=0 && monthNumber<12){
try
{
Calendar calendar = Calendar.getInstance();
int date = 1;
int year = calendar.get(Calendar.YEAR);
calendar.set(year, monthNumber, date);
days = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
} catch (Exception e)
{
if(e!=null)
e.printStackTrace();
}
}
return days;
}
public static int getDaysDifference(Date fromDate,Date toDate)
{
if(fromDate==null||toDate==null)
return 0;
return (int)( (toDate.getTime() - fromDate.getTime()) / (1000 * 60 * 60 * 24));
}
public static int getDaysDifference(Calendar calendar1,Calendar calendar2)
{
if(calendar1==null||calendar2==null)
return 0;
return (int)( (calendar2.getTimeInMillis() - calendar1.getTimeInMillis()) / (1000 * 60 * 60 * 24));
}
}
我在我的 MainActivity.Class 中调用它如下：
public class MainActivity extends Activity implements ICustomDateTimeListener
{
private TextView textView;
private DateTimePicker dateTimePicker;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
textView = (TextView) findViewById(R.id.textview);
dateTimePicker = new DateTimePicker(MainActivity.this, this);
dateTimePicker.set24HourFormat(true);
dateTimePicker.showDialog();
//rrr
}
@Override
public void onSet(Calendar calendarSelected, Date dateSelected, int year,
String monthFullName, String monthShortName, int monthNumber,
int date, String weekDayFullName, String weekDayShortName)
{
textView.setText(dateSelected.toLocaleString());
}
@Override
public void onCancel()
{
Log.d("datetimepickerdialog", "canceled");
}