How can I clear the textfield when it is enabled?

Question

The textfield is disabled and with text.

When I touch a button, the textfield will be enabled for editing.

However, I would like to textfield to be cleared when enabled.

One constraint is that I can;t add any other listener to the button.

Is there anyone can answer my question?

Many Thanks!

score 2 · Answer 1 · answered Jul 10 '12 at 04:18

2

Try this..

Inside the button listener that enables the textfield, after enabling statement,just add mytext.setText("");

answered Jul 10 '12 at 04:18

Kumar Vivek Mitra

Sorry, let me clarify more. I cannot do anything about the button. – William LAM Jul 10 '12 at 06:02
Can you please elaborate, what do u mean by "I cannot do anything about the button" – Kumar Vivek Mitra Jul 10 '12 at 06:31
The constraint is that I cannot do anything on the button. including adding mytext.setText(""); in the button listener – William LAM Jul 10 '12 at 06:38

score 1 · Accepted Answer · answered Jul 10 '12 at 05:02

1

You could attach a property listener and listen for the "enabled" event

field.addPropertyChangeListener("enabled", listener);

This doesn't require you mess around with the field at all...

answered Jul 10 '12 at 05:02

MadProgrammer

Thanks for your answer, I have tried textField.addPropertyChangeListener("enabled", new PropertyChangeListener() { public void propertyChange(PropertyChangeEvent evt) { text.setText(""); panel.revalidate(); } }); it seems that the program didn't run into the listener when the textfield is enabled. – William LAM Jul 10 '12 at 06:03
Problem solved!! field.addPropertyChangeListener("editable", listener); Thx!! – William LAM Jul 10 '12 at 06:31

score 0 · Answer 3 · edited May 23 '17 at 11:56

0

check here, Here is the answer of your question. You just need some modifications...

edited May 23 '17 at 11:56

Community

answered Jul 10 '12 at 04:20

djhs16

I'm sorry. I am not having a listener that listner to the value change of the textfield. I would like to clear the textfield when it is being enabled by the button. And I can't do anything on Button is the constraint. – William LAM Jul 10 '12 at 06:04

3 Answers3