Hi,
Please use these two class:
use like :
'
BitmapButtonField _bbfCompose;
_bbfCompose = new BitmapButtonField("image.png","focusimage.png");
image.png is normal image, that you want to show, focusimage.png will appear when you will get focus over button..
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import net.rim.device.api.system.*;
import net.rim.device.api.ui.*;
/**
* Implements all the stuff we don't want to do each time we need a new button
*/
public abstract class BaseButtonField extends Field
{
private XYRect _drawFocusTempRect = new XYRect();
public BaseButtonField()
{
this( 0 );
}
public BaseButtonField( long style )
{
super( Field.FOCUSABLE | style );
}
protected void layout( int width, int height )
{
setExtent( 10, 10 );
}
protected void drawFocus( Graphics g, boolean on )
{
getFocusRect( _drawFocusTempRect );
boolean oldDrawStyleFocus = g.isDrawingStyleSet( Graphics.DRAWSTYLE_FOCUS );
boolean notEmpty = g.pushContext( _drawFocusTempRect.x, _drawFocusTempRect.y, _drawFocusTempRect.width, _drawFocusTempRect.height, 0, 0 );
try {
if( notEmpty ) {
g.setDrawingStyle( Graphics.DRAWSTYLE_FOCUS, on );
paintBackground( g );
paint( g );
}
} finally {
g.popContext();
g.setDrawingStyle( Graphics.DRAWSTYLE_FOCUS, oldDrawStyleFocus );
}
}
protected boolean keyChar( char character, int status, int time )
{
if( character == Characters.ENTER ) {
clickButton();
return true;
}
return super.keyChar( character, status, time );
}
protected boolean navigationClick( int status, int time )
{
clickButton();
return true;
}
protected boolean trackwheelClick( int status, int time )
{
clickButton();
return true;
}
protected boolean invokeAction( int action )
{
switch( action ) {
case ACTION_INVOKE: {
clickButton();
return true;
}
}
return super.invokeAction( action );
}
public void setDirty( boolean dirty ) {
// We never want to be dirty or muddy
}
public void setMuddy( boolean muddy ) {
// We never want to be dirty or muddy
}
/**
* A public way to click this button
*/
public void clickButton()
{
fieldChangeNotify( 0 );
}
}
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import net.rim.device.api.system.*;
import net.rim.device.api.ui.*;
public class BitmapButtonField extends BaseButtonField
{
private Bitmap[] _bitmaps;
private static final int NORMAL = 0;
private static final int FOCUS = 1;
public BitmapButtonField( Bitmap normalState )
{
this( normalState, normalState, 0 );
}
public BitmapButtonField( Bitmap normalState, Bitmap focusState )
{
this( normalState, focusState, 0 );
}
public BitmapButtonField( Bitmap normalState, Bitmap focusState, long style )
{
super( Field.FOCUSABLE | style );
if( (normalState.getWidth() != focusState.getWidth())
|| (normalState.getHeight() != focusState.getHeight()) ){
throw new IllegalArgumentException( "Image sizes don't match" );
}
_bitmaps = new Bitmap[] { normalState, focusState };
}
public void setImage( Bitmap normalState ){
_bitmaps[NORMAL] = normalState;
invalidate();
}
public void setFocusImage( Bitmap focusState ){
_bitmaps[FOCUS] = focusState;
invalidate();
}
public int getPreferredWidth() {
return _bitmaps[NORMAL].getWidth();
}
public int getPreferredHeight() {
return _bitmaps[NORMAL].getHeight();
}
protected void layout( int width, int height ) {
setExtent( _bitmaps[NORMAL].getWidth(), _bitmaps[NORMAL].getHeight() );
}
protected void paint( Graphics g ) {
int index = g.isDrawingStyleSet( Graphics.DRAWSTYLE_FOCUS ) ? FOCUS : NORMAL;
g.drawBitmap( 0, 0, _bitmaps[index].getWidth(), _bitmaps[index].getHeight(), _bitmaps[index], 0, 0 );
}
/**
* With this commented out the default focus will show through
* If an app doesn't want focus colours then it should override this and do nothing
**/
/*
protected void paintBackground( Graphics g ) {
// Nothing to do here
}
*/
protected void drawFocus( Graphics g, boolean on ) {
// Paint() handles it all
g.setDrawingStyle( Graphics.DRAWSTYLE_FOCUS, true );
paintBackground( g );
paint( g );
}
}
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