JFormattedTextField : input time duration value
13,859
Solution 1
The code:
public static void main(String[] args) {
JFrame jFrame = new JFrame();
jFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jFrame.setLayout(new BorderLayout());
jFrame.setPreferredSize(new Dimension(500, 500));
final JFormattedTextField comp = new JFormattedTextField();
comp.setFormatterFactory(new DefaultFormatterFactory(new DateFormatter(new SimpleDateFormat(
"H'h' mm'm'"))));
comp.setValue(Calendar.getInstance().getTime());
comp.addPropertyChangeListener("value", new PropertyChangeListener() {
@Override public void propertyChange(PropertyChangeEvent evt) {
System.out.println(comp.getValue());
}
});
jFrame.getContentPane().add(comp, BorderLayout.CENTER);
jFrame.pack();
jFrame.setVisible(true);
}
Solution 2
Here's an example of using InputVerifier
to accommodate multiple input formats.
import java.awt.EventQueue;
import java.text.NumberFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import javax.swing.Box;
import javax.swing.InputVerifier;
import javax.swing.JComponent;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.text.DateFormatter;
import javax.swing.text.DefaultFormatterFactory;
public class FormattedFields {
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
//@Override
public void run() {
new FormattedFields();
}
});
}
FormattedFields() {
Box form = Box.createVerticalBox();
form.add(new JLabel("Date & Time:"));
DateTimeField dtField = new DateTimeField(new Date());
form.add(dtField);
form.add(new JLabel("Amount:"));
JFormattedTextField amtField = new JFormattedTextField(
NumberFormat.getCurrencyInstance());
amtField.setValue(100000);
form.add(amtField);
JFrame frame = new JFrame();
frame.add(form);
frame.pack();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
}
class DateTimeField extends JFormattedTextField {
public DateTimeField() {
super(DateTimeVerifier.getDefaultFormat());
this.setInputVerifier(new DateTimeVerifier(this));
}
public DateTimeField(Date date) {
this();
this.setValue(date);
}
@Override
protected void invalidEdit() {
if (!this.getInputVerifier().verify(this)) {
super.invalidEdit();
}
}
}
class DateTimeVerifier extends InputVerifier {
private static List<SimpleDateFormat> validForms =
new ArrayList<SimpleDateFormat>();
static {
validForms.add(new SimpleDateFormat("dd-MMM-yyyy HH'h':mm'm'"));
validForms.add(new SimpleDateFormat("dd-MMM-yyyy HH:mm"));
}
private JFormattedTextField tf;
private Date date;
public DateTimeVerifier(JFormattedTextField tf) {
this.tf = tf;
}
@Override
public boolean verify(JComponent input) {
boolean result = false;
if (input == tf) {
String text = tf.getText();
for (SimpleDateFormat format : validForms) {
try {
date = format.parse(text);
result |= true;
} catch (ParseException pe) {
result |= false;
}
}
}
return result;
}
@Override
public boolean shouldYieldFocus(JComponent input) {
if (verify(input)) {
tf.setValue(date);
return true;
} else {
return false;
}
}
public static SimpleDateFormat getDefaultFormat() {
return validForms.get(0);
}
}
Solution 3
Have you tried H'h' mm'm'
?
Comments
-
bguiz almost 2 years
I want to use a
JFormattedTextField
to allow the user to input time duration values into a form. Sample valid values are:2h 30m
72h 15m
6h
0h
However I am having limited success with this. Can some one please suggest how this can be accomplished? I am OK if this result can be achieved using a
JTextField
as well.Thanks!
If it is worth anything, here's my current attempt:
mFormattedText.setFormatterFactory( new DefaultFormatterFactory( new DateFormatter( new SimpleDateFormat("H mm"))));
This sorta works except that:
I cannot get*h
andm
to appear as plain text (I tried escaping)- The number of hours has a max
*: See @nanda's answer
-
bguiz about 14 years@ultrajohn, thanks for your input, but its part of the requirements that it has to be in one field, and that the format is as I've described in the question.
-
bguiz about 14 years@nanda, Thanks for pointing out how to escape characters (worked), but what didn't work was that I want users to enter
6h 42m
, and that results inUnparseable date: "6h 42m"
, so I am still stuck. This only works when the user enters something like6:42:00 AM
, which doesn't work for me since the intent is to enter a time duration. -
bguiz about 14 years@trashgod, could you suggest how to use
InputVerifier
in this scenario? -
nanda about 14 yearsIt' weird... maybe you should share your complete code because this is working with my code (see other answer to see the complete code)