Java Development

[pavankumarragi]

Hii,i have created one slider Bar by referring the example :https://github.com/blackberry/Samples-for-Java/blob/master/Advanced%20UI/src/com/samples/toolkit/ui/...,

by this,i am successfully displayed slider on my Screen,but my problem is beside the slider  Bar,i want to display one play/pause button,for that i have used the below code:

public class UIExampleSliderScreen extends UIExampleScreen {
private ButtonField _startPlayingButton;
private ButtonField stop;

private ButtonField facebookButton;

public UIExampleSliderScreen() {
super(0);
_startPlayingButton = new ButtonField("Play");
stop = new ButtonField("Stop");

facebookButton = new ButtonField("Facebook");
facebookButton.setMargin(5, 5, 5, 5);
HorizontalFieldManager manager = new HorizontalFieldManager();

setTitle("Slider Screen");
final SliderField slider;
slider = new SliderField(
Bitmap.getBitmapResource("slider2_thumb_normal.png"),
Bitmap.getBitmapResource("slider2_progress_normal.png"),
Bitmap.getBitmapResource("slider2_base_normal.png"),
Bitmap.getBitmapResource("slider2_thumb_focused.png"),
Bitmap.getBitmapResource("slider2_progress_focused.png"),
Bitmap.getBitmapResource("slider2_base_focused.png"), 20,
0, 16, 16, FOCUSABLE);
slider.setPadding(20, 20, 20, 20);

slider.setBackground(BackgroundFactory
.createSolidBackground(0xD3D3D3));

manager.add(slider);

manager.add(facebookButton);

manager.add(_startPlayingButton);
manager.add(stop);
add(manager);

}

}
}

1)i am able to display only the Slide Bar,my custom Buttons are not displayed?

2)The Slide Bar is Displayed on Screen fully,how can i reduce the lenth of my slide Bar?

[simon_hain · Accepted solution]

the slider field seems to be designed to occupy the whole width:
public int getPreferredWidth()
{
return Integer.MAX_VALUE;
}

you would have to change that, or overwrite the layout of the manager.
see
http://supportforums.blackberry.com/t5/Java-Development/How-to-Extend-Manager/ta-p/446749

[pavankumarragi]

public int getPreferredWidth() 
{
return Integer.MAX_VALUE;
}

what should i change in this code?

[peter_strange]

Set the width you want it to be - in pixels. 

[pavankumarragi]

hi,can you check once my code is it correct: i am facing error

public class SeekBar extends UiApplication {
private static SeekBar bar;
private UIExampleSliderScreen screen;
SliderField slider;

public static void main(String args[]) {
bar = new SeekBar();
bar.enterEventDispatcher();
}

public SeekBar() {
screen = new UIExampleSliderScreen();
pushScreen(screen);
}

public class UIExampleSliderScreen extends UIExampleScreen {
private ButtonField _startPlayingButton;
//private ButtonField stop;

private ButtonField facebookButton;

public UIExampleSliderScreen() {
super(0);
_startPlayingButton = new ButtonField("Play");

facebookButton = new ButtonField("Facebook");
facebookButton.setMargin(5, 5, 5, 5);
HorizontalFieldManager manager = new HorizontalFieldManager();

setTitle("Slider Screen");

slider = new SliderField(
Bitmap.getBitmapResource("slider2_thumb_normal.png"),
Bitmap.getBitmapResource("slider2_progress_normal.png"),
Bitmap.getBitmapResource("slider2_base_normal.png"),
Bitmap.getBitmapResource("slider2_thumb_focused.png"),
Bitmap.getBitmapResource("slider2_progress_focused.png"),
Bitmap.getBitmapResource("slider2_base_focused.png"), 20,
0, 16, 16, FOCUSABLE);
slider.setPadding(20, 20, 20, 20);

slider.setBackground(BackgroundFactory
.createSolidBackground(0xD3D3D3));


manager.add(_startPlayingButton);

manager.add(slider);

etStatus(manager);

}
protected void sublayout(int width, int height) {

layoutChild(_startPlayingButton, width, height);
layoutChild(slider, width-_startPlayingButton.getWidth(), height);

setPositionChild(_startPlayingButton, width-slider.getWidth(),0);
setPositionChild(slider, 10, 10);
int actualHeight=Math.max(_startPlayingButton.getHeight(), slider.getHeight());
setExtent(width, actualHeight);
}

}
}

[pavankumarragi]

if i do like this,i am not able to display my slider Bar:,but i am able to display my title

public class UIExampleSliderScreen extends UIExampleScreen {

public  UIExampleSliderScreen {

setTiltle("Title");

SliderButton button=new SliderButton(slider,_startPlayingButton);

}

public class SliderButton extends Manager {
private ButtonField _startPlayingButton;
private ButtonField stop;
SliderField slider1;
protected SliderButton(SliderField slider, ButtonField _startPlayingButton){
super(0);
this._startPlayingButton=_startPlayingButton;
slider1=slider;
//add(_startPlayingButton);
System.out.println("SliderButton");

add(slider1);
System.out.println("SliderButton1");
HorizontalFieldManager manager = new HorizontalFieldManager();
manager.add(_startPlayingButton);
manager.add(slider);
add(manager);
}

protected void sublayout(int width, int height) {

layoutChild(_startPlayingButton, width, height);
layoutChild(slider1, width-_startPlayingButton.getWidth(), height);

setPositionChild(_startPlayingButton, width-slider1.getWidth(),0);
setPositionChild(slider1, 10, 10);
int actualHeight=Math.max(_startPlayingButton.getHeight(), slider1.getHeight());
setExtent(width, actualHeight);
}

}

[peter_strange]

Please start a new Thread for this new Problem.

I have not looked seriously at your code, but it looks a little odd in places.  Can I suggest you review this:

http://supportforums.blackberry.com/t5/Java-Development/How-to-Extend-Manager/ta-p/446749

and this:

http://supportforums.blackberry.com/t5/Java-Development/Create-a-custom-layout-manager-for-a-screen/...

and this:

http://supportforums.blackberry.com/t5/Java-Development/Create-custom-fields/ta-p/444962

Then I think you will understand the theory of what you are trying to do a bit better.  Having reviewed all of this, look at your code again, Play around with it, then come back to us with your question on a new Thread.