Java Development

[Sultan14]

Hello,

I have a question about the ListStyleButtonField. How can I make each field in the list go to a spicific screen class?

ListStyleButtonField firstField =

new ListStyleButtonField( button1left, "Customer", buttonRight, 0);

firstField.setChangeListener(

this);

add( firstField );

ListStyleButtonField secondField =

new ListStyleButtonField( button2left, " Contract", buttonRight,0);

add( secondField );

[simon_hain · Accepted solution]

as this is not in the API you should link to the source:
http://supportforums.blackberry.com/t5/Java-Development/Implement-advanced-buttons-fields-and-manage...

or directly
https://github.com/blackberry/Samples-for-Java/blob/master/Advanced%20UI/src/com/samples/toolkit/ui/...

as you can see in the sourcecode, all actions invoke a fieldchange event. this can be captured with a fieldchangelistener, which you only add for the first field (maybe you obmitted the second).

if you implement fieldchanged in your mainscreen you have to discern from where the event comes. to do that, declare the fields on the screen scope and check if the field paramater of the fieldchanged method is the field you need.

example:
public void fieldChanged(Field field, int context) {
if (context != FieldChangeListener.PROGRAMMATIC) {
if (field == okButton) {

[Sultan14]

Thank you Simon for the Quick reply. But what do you mean by okButton, as you can see I'm not using a buttons with this list. I already added some buttons and it worked for me. So in my code does okButton = something like firstField. And i'm sorry to bothering you. But as you know i just start wit the BB development so I hope you tolerate me. Thanks!

[simon_hain]

your buttons are called firstField and secondField.
The example was just that, an example, i did not adjust it to match your code, so you have to do a little bit of transfer on your own.

Also change this line
ListStyleButtonField firstField =
to
firstField =

and fix the now occuring error by decalring the field on the screen scope.

[Sultan14]

that's the screen i'm working with

// this is my constructor

public

LoginSuccessScreen(String username, String domain){

.....

Bitmap buttonRight = Bitmap.getBitmapResource(

"right.png" );

ListStyleButtonField firstField =

new ListStyleButtonField( button1left, "Customer ", buttonRight, 1 );

add( firstField );

//that is the field changed method

public

void fieldChanged(Field field, int context) {

// TODO Auto-generated method stubif (context != FieldChangeListener.PROGRAMMATIC) {

if (field == ??) {

UiApplication.getUiApplication().pushScreen(

newAlbum());

}

}

}

[Sultan14]

so I should declare the firstField and the secondField in the Class so I can use it in the methods, right?

[Sultan14]

I did it like that but it still not working

publicvoid fieldChanged(Field field, intcontext) {

// TODO Auto-generated method stubif (context != FieldChangeListener.PROGRAMMATIC) {

if (field ==firstField) {

UiApplication.getUiApplication().pushScreen(

newAlbum());

}

}

}

[rabiray · Accepted solution]

Hi,

I dont know if I am right...but

Is ur class implementing FieldChangeListner and  have u add this listner to ur buttons.

Class implements FieldChangeListner

firstField.setChnageListner(this);

secondField.setChnageListner(this);

Thx

Rabi

[simon_hain · Accepted solution]

what exactly is "not working"?
the code looks ok, if you can compile it it should work as intended and push a new Album screen.

[Sultan14]

Thank you so much Simon, sorry for making you angry .
It works now!