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inside custom component

Java Development

Posts: 484
Registered: ‎07-17-2008
My Device: Not Specified
Accepted Solution

Disable RadioButtonField

BlackBerry Storm /


Prior to 4.7 I was using Field.NON_FOCUSABLE to prevent a user from setting a RadioButtonField.


This doesn't work on the storm.  While it does prevent focusing, the user can still select the button by clicking it.


I could remove the RadioButtonField from the group, but I'd like it to be "grayed out" so to speak.


Is there any way to do this?





Posts: 5,339
Registered: ‎09-20-2008
My Device: ***
My Carrier: ***

Re: Disable RadioButtonField

[ Edited ]

To make this radio button field gray and prevent user from selecting it do the following:


Create new class that extends RadioButtonField.


Add new property to the new class, say it is:


private boolean isEnabled = true; // by default - enabled


override paint() and setSelected() methods.


protected void paint(Graphics graphics) {
if (isEnabled) {
// if enabled - drawing in BLACK
} else {
// if field is not enabled - drawing in GRAY


public void setSelected(boolean selected) {
// if field is enabled - passing parameter value
// if not enabled - passing false
final boolean flag2set = isEnabled?selected:false;


Usually, when a radio button goes to unavaliable state - the application removes it from the screen. It is a common practice in User Interface. Grayed fields usually used for Checkboxes, but not for RadioButtons.


Unavailable but visible RadioButton may confuse a user. Just my humble opinion Smiley Happy

Message Edited by tbilisoft on 31-12-2008 06:33 AM