你可以使用JSpinner来实现时间选择器,并设置一个只显示时间值的JSpinner.DateEditor。
JSpinner timeSpinner = new JSpinner( new SpinnerDateModel() );
JSpinner.DateEditor timeEditor = new JSpinner.DateEditor(timeSpinner, "HH:mm:ss");
timeSpinner.setEditor(timeEditor);
timeSpinner.setValue(new Date()); // will only show the current time
http://wiki.java.net/twiki/bin/view/Javadesktop/JXDateTimePicker
编辑:这篇文章已经从网上消失了,但是SingleShot发现它仍然可以在互联网档案馆中找到。为了确保,这里是完整的工作示例:
import org.jdesktop.swingx.calendar.SingleDaySelectionModel;
import org.jdesktop.swingx.JXDatePicker;
import javax.swing.*;
import javax.swing.text.DefaultFormatterFactory;
import javax.swing.text.DateFormatter;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.*;
import java.awt.*;
/**
* This is licensed under LGPL. License can be found here: http://www.gnu.org/licenses/lgpl-3.0.txt
*
* This is provided as is. If you have questions please direct them to charlie.hubbard at gmail dot you know what.
*/
public class DateTimePicker extends JXDatePicker {
private JSpinner timeSpinner;
private JPanel timePanel;
private DateFormat timeFormat;
public DateTimePicker() {
super();
getMonthView().setSelectionModel(new SingleDaySelectionModel());
}
public DateTimePicker( Date d ) {
this();
setDate(d);
}
public void commitEdit() throws ParseException {
commitTime();
super.commitEdit();
}
public void cancelEdit() {
super.cancelEdit();
setTimeSpinners();
}
@Override
public JPanel getLinkPanel() {
super.getLinkPanel();
if( timePanel == null ) {
timePanel = createTimePanel();
}
setTimeSpinners();
return timePanel;
}
private JPanel createTimePanel() {
JPanel newPanel = new JPanel();
newPanel.setLayout(new FlowLayout());
//newPanel.add(panelOriginal);
SpinnerDateModel dateModel = new SpinnerDateModel();
timeSpinner = new JSpinner(dateModel);
if( timeFormat == null ) timeFormat = DateFormat.getTimeInstance( DateFormat.SHORT );
updateTextFieldFormat();
newPanel.add(new JLabel( "Time:" ) );
newPanel.add(timeSpinner);
newPanel.setBackground(Color.WHITE);
return newPanel;
}
private void updateTextFieldFormat() {
if( timeSpinner == null ) return;
JFormattedTextField tf = ((JSpinner.DefaultEditor) timeSpinner.getEditor()).getTextField();
DefaultFormatterFactory factory = (DefaultFormatterFactory) tf.getFormatterFactory();
DateFormatter formatter = (DateFormatter) factory.getDefaultFormatter();
// Change the date format to only show the hours
formatter.setFormat( timeFormat );
}
private void commitTime() {
Date date = getDate();
if (date != null) {
Date time = (Date) timeSpinner.getValue();
GregorianCalendar timeCalendar = new GregorianCalendar();
timeCalendar.setTime( time );
GregorianCalendar calendar = new GregorianCalendar();
calendar.setTime(date);
calendar.set(Calendar.HOUR_OF_DAY, timeCalendar.get( Calendar.HOUR_OF_DAY ) );
calendar.set(Calendar.MINUTE, timeCalendar.get( Calendar.MINUTE ) );
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MILLISECOND, 0);
Date newDate = calendar.getTime();
setDate(newDate);
}
}
private void setTimeSpinners() {
Date date = getDate();
if (date != null) {
timeSpinner.setValue( date );
}
}
public DateFormat getTimeFormat() {
return timeFormat;
}
public void setTimeFormat(DateFormat timeFormat) {
this.timeFormat = timeFormat;
updateTextFieldFormat();
}
public static void main(String[] args) {
Date date = new Date();
JFrame frame = new JFrame();
frame.setTitle("Date Time Picker");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
DateTimePicker dateTimePicker = new DateTimePicker();
dateTimePicker.setFormats( DateFormat.getDateTimeInstance( DateFormat.SHORT, DateFormat.MEDIUM ) );
dateTimePicker.setTimeFormat( DateFormat.getTimeInstance( DateFormat.MEDIUM ) );
dateTimePicker.setDate(date);
frame.getContentPane().add(dateTimePicker);
frame.pack();
frame.setVisible(true);
}
}
使用两者的组合..这就是我所做的:
public static JPanel buildDatePanel(String label, Date value) {
JPanel datePanel = new JPanel();
JDateChooser dateChooser = new JDateChooser();
if (value != null) {
dateChooser.setDate(value);
}
for (Component comp : dateChooser.getComponents()) {
if (comp instanceof JTextField) {
((JTextField) comp).setColumns(50);
((JTextField) comp).setEditable(false);
}
}
datePanel.add(dateChooser);
SpinnerModel model = new SpinnerDateModel();
JSpinner timeSpinner = new JSpinner(model);
JComponent editor = new JSpinner.DateEditor(timeSpinner, "HH:mm:ss");
timeSpinner.setEditor(editor);
if(value != null) {
timeSpinner.setValue(value);
}
datePanel.add(timeSpinner);
return datePanel;
}
如你所说,日期选择器非常容易,市面上有很多选择。
至于时间选择器,可以参考谷歌日历在创建新条目时的做法。它允许您键入任何内容,同时以30分钟为间隔提供下拉列表。当您更改分钟数时,下拉列表也会相应更改。
如果需要允许用户选择秒数,则最好的办法是使用可键入/下拉列表组合。