Output field Focus
I have a RichText field inside a VerticalFieldManager. This value for money takes only a few lines. I have two of them on the screen. When I scroll using the wheel she starts most by the Senior Manager of VFM and scroll all the way to the bottom of the text in text VFM most high field before moving the low VFM Textbox. Because text fields can have a large amount of text in there it takes a long time to go through all the text in the top of the page value for money before I go down one. I would like to navigationMovement and if the text box has not been clicked then just move to the next text box. The user can then move between the two and click never who he or she wants to read by clicking on it. I need to be able to give up the selection or focus within navigationMovement. I tried focusRelease and setFocus. Maybe I need to do on the screen rather than on the optimization of resources.
Any help would be greatly appreciated. I can post code samples if that would help.
Thanks in advance.
Peter thank you very much for your contribution.
I placed the invokelater in the onfocus method and it works actually pretty good.
This is my first java program and the first blackberry application, so I don't know that I'm not always the straight line.
I'm still trying to get use to the memory management model. I can new the executable thread in the onFocus event? It runs only once and I have no concern for leaks and memory fragmentation? Also do not know how the run() method actually gets my VOR 'this->' pointer but he does. Its similar magic.
In any case, I don't want to accept this as a solution, I again thank you and I will post the three methods that I placed on my VerticalFieldManager that contains a single field to RichText.
Maybe someone else has problems with the setVerticalScroll not taking effect.
protected void onFocus(int direction)
{
super.onFocus(direction);
// Need to call setVerticalScroll a little later. It looks like
// setFocus is overriding it. If we call it later then it will
// actually take effect.
UiApplication.getUiApplication().invokeLater(
new Runnable() {
public void run() {
setVerticalScroll(m_iCurrentLine * m_iFontHeight);
}
});
}
protected boolean navigationClick(int status, int time)
{
m_bScrollEnabled = m_bScrollEnabled == true ? false : true;
return true;
}
protected boolean navigationMovement(int dx, int dy, int status, int time)
{
if (m_bScrollEnabled == true)
{
int i_scrolloff = (m_iCurrentLine + dy) * m_iFontHeight;
if (i_scrolloff < 0 || (i_scrolloff + getVisibleHeight()) > getVirtualHeight())
return true; // Eat the scroll event cause we're at the beginning or end
m_iCurrentLine += dy;
setVerticalScroll(i_scrolloff);
return true;
}
else
{
// If here then RichText field is not selected
// figure out which field currently has focus
// and move focus to next field
Screen scr = getScreen();
int i = scr.getFieldWithFocusIndex();
Field field = (i == (scr.getFieldCount() - 1)) ? scr.getField(0) : scr.getField(i + 1);
field.setFocus();
}
return false;
}
Tags: BlackBerry Developers
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__ ___ __ ___ __ __
| AFB1 | AFM2 |
----------------------------
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package com.samples.toolkit.ui.component; import java.util.Calendar; import net.rim.device.api.system.Bitmap; import net.rim.device.api.system.Characters; import net.rim.device.api.system.Display; import net.rim.device.api.ui.DrawStyle; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.FieldChangeListener; import net.rim.device.api.ui.Font; import net.rim.device.api.ui.Graphics; import net.rim.device.api.ui.TouchEvent; import net.rim.device.api.ui.Touchscreen; import net.rim.device.api.ui.Ui; import net.rim.device.api.ui.component.Dialog; import net.rim.device.api.ui.component.LabelField; public class TestFeedListStyleField extends Field { Font myFont = Font.getDefault().derive(Font.SERIF_STYLE,5, Ui.UNITS_pt); Font myFont1 = Font.getDefault().derive(Font.BOLD,5, Ui.UNITS_pt); public static int DRAWPOSITION_TOP = 0; public static int DRAWPOSITION_BOTTOM = 1; public static int DRAWPOSITION_MIDDLE = 2; public static int DRAWPOSITION_SINGLE = 3; private static final int CORNER_RADIUS = 18; private static final int HPADDING = Display.getWidth() <= 320 ? 6 : 8; private static final int VPADDING = 4; private static final int COLOR_BACKGROUND = 0xFFFFFF; private static final int COLOR_BORDER = 0xBBBBBB; private static final int COLOR_BACKGROUND_FOCUS = 0x186DEF; public MyLabelField _labelField,_labelField1, _labelField2,_labelField3; private Bitmap _caret; private int _rightOffset; private int _leftOffset; private int _labelHeight,_labelHeight1,_labelHeight2,_labelHeight3; private Bitmap _leftIcon; private Bitmap _actionIcon; private Bitmap _ballon; private int _drawPosition = -1; private String _labelField1test; public TestFeedListStyleField(Bitmap icon,String label, String label1, String lable2,String lable3, Bitmap balloon,Bitmap caret, long style) { super( USE_ALL_WIDTH | Field.FOCUSABLE ); _leftIcon = icon; _labelField = new MyLabelField(label, style ); _labelField1 = new MyLabelField(label1, style ); _labelField2=new MyLabelField(lable2,style); _labelField3=new MyLabelField(lable3,style); _ballon=balloon; _actionIcon=caret; _labelField1test=label1; _labelField.setFont(myFont); _labelField1.setFont(myFont); _labelField2.setFont(myFont1); _labelField3.setFont(myFont); // Imagelistner imglistner = new Imagelistner(); // _actionIcon. } public TestFeedListStyleField(String label, String label1, String lable2,Bitmap caret, long style) { super( USE_ALL_WIDTH | Field.FOCUSABLE ); _labelField = new MyLabelField(label, style ); _labelField1 = new MyLabelField(label1, style ); _labelField2=new MyLabelField(lable2,style); _actionIcon=caret; _labelField1test=label1; _labelField1.setFont(myFont); _labelField2.setFont(myFont); // Imagelistner imglistner = new Imagelistner(); // _actionIcon. } public void setDrawPosition( int drawPosition ) { _drawPosition = drawPosition; } public String toString() { return _labelField.toString(); } protected void layout(int width, int height) { if( Touchscreen.isSupported() ) { } _leftOffset = HPADDING; if( _leftIcon != null ) { _leftOffset += _leftIcon.getWidth() + HPADDING; } _rightOffset = HPADDING; if( _caret != null ) { _rightOffset += _caret.getWidth() + HPADDING; } _labelField.layout( width - _leftOffset - _rightOffset, height ); _labelHeight = _labelField.getHeight(); int labelWidth = _labelField.getWidth(); _labelField1.layout( width - _leftOffset - _rightOffset, height ); _labelHeight1 = _labelField1.getHeight(); int labelWidth1 = _labelField1.getWidth(); _labelField2.layout( width - _leftOffset - _rightOffset, height ); _labelHeight2 = _labelField2.getHeight(); int labelWidth2 = _labelField2.getWidth(); _labelField3.layout( width - _leftOffset - labelWidth1 - _rightOffset, height ); _labelHeight3 = _labelField3.getHeight(); int labelWidth3 = _labelField3.getWidth(); if( _labelField.isStyle( DrawStyle.HCENTER ) ) { _leftOffset = ( width - labelWidth ) / 2; } else if ( _labelField.isStyle( DrawStyle.RIGHT ) ) { _leftOffset = width - labelWidth - HPADDING - _rightOffset; } if( _labelField1.isStyle( DrawStyle.HCENTER ) ) { _leftOffset = ( width - labelWidth1 ) / 2; } else if ( _labelField.isStyle( DrawStyle.RIGHT ) ) { _leftOffset = width - labelWidth1 - HPADDING - _rightOffset; } if( _labelField2.isStyle( DrawStyle.HCENTER ) ) { _leftOffset = ( width - labelWidth2 ) / 2; } else if ( _labelField.isStyle( DrawStyle.RIGHT ) ) { _leftOffset = width - labelWidth2 - HPADDING - _rightOffset; } int extraVPaddingNeeded = 0; // if( _labelHeight < _targetHeight ) { // // Make sure that they are at least 1.5 times font height // extraVPaddingNeeded = ( _targetHeight - _labelHeight ) / 2;//( _targetHeight - _labelHeight ) / 2; // } if( _leftIcon != null ) { if( _labelHeight+_labelHeight1 < _leftIcon.getHeight() ) { // Make sure that they are at least 1.5 times font height extraVPaddingNeeded = _leftIcon.getHeight();//( _targetHeight - _labelHeight ) / 2; } else if( _labelHeight+_labelHeight1 > _leftIcon.getHeight() ){ extraVPaddingNeeded = _labelHeight+_labelHeight1; } } else{ if( _labelHeight+_labelHeight1 < _actionIcon.getHeight() ) { // Make sure that they are at least 1.5 times font height extraVPaddingNeeded = _leftIcon.getHeight();//( _targetHeight - _labelHeight ) / 2; } else if( _labelHeight+_labelHeight1 > _actionIcon.getHeight() ){ extraVPaddingNeeded = _labelHeight+_labelHeight1; } } setExtent( width, (int) (extraVPaddingNeeded*1.1) ); } public void setText( String text ) { _labelField.setText( text ); updateLayout(); } protected void paint(Graphics g) { // Left Bitmap if( _leftIcon != null ) { g.drawBitmap( HPADDING, VPADDING, (int) (_leftIcon.getWidth()*2), (int) (_leftIcon.getHeight()*3), _leftIcon, 0, 0 ); } // // Text ( getHeight() - _labelHeight ) / 2, ( getHeight() - _actionIcon.getHeight() ) / 2, //(int) (VPADDING*.5) try { g.pushRegion( _leftOffset, (int) (VPADDING*.5), getWidth() - _leftOffset - _rightOffset, _labelHeight, 0, 0 ); //getWidth() - _leftOffset - _rightOffset _labelField.paint( g ); } finally { g.popContext(); } try { g.pushRegion( (int) (getWidth() - _leftIcon.getWidth()*.6 ), (int) (VPADDING*.5), getWidth() - _leftOffset - _labelField1.getWidth()- _rightOffset, _labelHeight3, 0, 0 ); //getWidth() - _leftOffset - _rightOffset _labelField3.paint( g ); } finally { g.popContext(); } try { g.pushRegion(_leftOffset, _labelHeight, getWidth() - _leftOffset - _rightOffset, _labelHeight1, 0, 0 ); //getWidth() - _leftOffset - _rightOffset // String test6=_labelField1test.charAt(0)+" ".toString(); // // if(test6.trim().equals("0")){ //// Dialog.alert("Success...."); // } // else{ // Dialog.alert("Failure...."); _labelField1.paint( g ); // } } finally { g.popContext(); } if( _leftIcon != null ) { try { g.pushRegion((int) (HPADDING+_leftIcon.getWidth()), (int) (_labelHeight*1.5+_labelHeight1), getWidth() - (_leftIcon.getWidth()*2 ), (int) ((_leftIcon.getHeight()-_labelHeight-_labelHeight1)*.9),5, 5 ); //getWidth() - _leftOffset - _rightOffset // g.pushRegion((int) (HPADDING+_leftIcon.getWidth()*1.1), (int) (_labelHeight*1.5+_labelHeight1), (int) (getWidth() - _leftIcon.getWidth()- _ballon.getWidth()- _actionIcon.getWidth()), (int) ((_leftIcon.getHeight()-_labelHeight-_labelHeight1)*.9), 0, 0 ); //getWidth() - _leftOffset - _rightOffset _labelField2.paint( g ); } finally { g.popContext(); } } // Right (Action) Bitmap if( _actionIcon != null ) { g.drawBitmap( (int) (getWidth() - _leftIcon.getWidth()*.6 ), (int) (VPADDING*7.8), _ballon.getWidth(), _ballon.getHeight(), _ballon, 0, 0 ); g.drawBitmap( getWidth() - HPADDING - _actionIcon.getWidth(), (int) (VPADDING*7), _actionIcon.getWidth(), _actionIcon.getHeight(), _actionIcon, 0, 0 ); } // BootomGrid // g.drawBitmap( (int) (HPADDING+_leftIcon.getWidth()*1.3), _labelHeight+_labelHeight1, 0, 0, _actionIcon, _drawPosition, _drawPosition ); // g.drawBitmap( (int) (HPADDING+_leftIcon.getWidth()*1.3), _labelHeight+_labelHeight1, 0, 0, _actionIcon, _drawPosition, _drawPosition ); // g.drawBitmap( (int) (HPADDING+_leftIcon.getWidth()*1.3), _labelHeight+_labelHeight1, 0, 0, _actionIcon, _drawPosition, _drawPosition ); // g.drawBitmap( (int) (HPADDING+_leftIcon.getWidth()*1.3), _labelHeight+_labelHeight1, 0, 0, _actionIcon, _drawPosition, _drawPosition ); // g.drawBitmap( (int) (HPADDING+_leftIcon.getWidth()*1.3), _labelHeight+_labelHeight1, 0, 0, _actionIcon, _drawPosition, _drawPosition ); // } protected void paintBackground( Graphics g ) { if( _drawPosition < 0 ) { // it's like a list field, let the default background be drawn super.paintBackground( g ); return; } int oldColour = g.getColor(); int background = g.isDrawingStyleSet( Graphics.DRAWSTYLE_FOCUS ) ? COLOR_BACKGROUND_FOCUS : COLOR_BACKGROUND; //COLOR_BACKGROUND_FOCUS try { if( _drawPosition == 0 ) { // Top g.setColor( background ); g.fillRoundRect( 0, 0, getWidth(), getHeight() + CORNER_RADIUS, CORNER_RADIUS, CORNER_RADIUS ); g.setColor( COLOR_BORDER ); g.drawRoundRect( 0, 0, getWidth(), getHeight() + CORNER_RADIUS, CORNER_RADIUS, CORNER_RADIUS ); g.drawLine( 0, getHeight() - 1, getWidth(), getHeight() - 1 ); } else if( _drawPosition == 1 ) { // Bottom g.setColor( background ); g.fillRoundRect( 0, -CORNER_RADIUS, getWidth(), getHeight() + CORNER_RADIUS, CORNER_RADIUS, CORNER_RADIUS ); g.setColor( COLOR_BORDER ); g.drawRoundRect( 0, -CORNER_RADIUS, getWidth(), getHeight() + CORNER_RADIUS, CORNER_RADIUS, CORNER_RADIUS ); } else if( _drawPosition == 2 ) { // Middle g.setColor( background ); g.fillRoundRect( 0, -CORNER_RADIUS, getWidth(), getHeight() + 2 * CORNER_RADIUS, CORNER_RADIUS, CORNER_RADIUS ); g.setColor( COLOR_BORDER ); g.drawRoundRect( 0, -CORNER_RADIUS, getWidth(), getHeight() + 2 * CORNER_RADIUS, CORNER_RADIUS, CORNER_RADIUS ); g.drawLine( 0, getHeight() - 1, getWidth(), getHeight() - 1 ); } else { // Single g.setColor( background ); g.fillRoundRect( 0, 0, getWidth(), getHeight(), CORNER_RADIUS, CORNER_RADIUS ); g.setColor( COLOR_BORDER ); g.drawRoundRect( 0, 0, getWidth(), getHeight(), CORNER_RADIUS, CORNER_RADIUS ); } } finally { g.setColor( oldColour ); } } protected void drawFocus( Graphics g, boolean on ) { if( _drawPosition < 0 ) { super.drawFocus( g, on ); } else { boolean oldDrawStyleFocus = g.isDrawingStyleSet( Graphics.DRAWSTYLE_FOCUS ); try { if( on ) { g.setDrawingStyle( Graphics.DRAWSTYLE_FOCUS, true ); } paintBackground( g ); paint( g ); } finally { 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 ) { if (status != 0) clickButton(); return true; } protected boolean trackwheelClick( int status, int time ) { if (status != 0) clickButton(); return true; } //#ifndef VER_4.1.0 | 4.0.0 protected boolean invokeAction( int action ) { switch( action ) { case ACTION_INVOKE: { clickButton(); return true; } } return super.invokeAction( action ); } //#endif /** * A public way to click this button */ public void clickButton() { fieldChangeNotify( 0 ); } //#ifndef VER_4.6.1 | VER_4.6.0 | VER_4.5.0 | VER_4.2.1 | VER_4.2.0 protected boolean touchEvent( TouchEvent message ) { int x = message.getX( 1 ); int y = message.getY( 1 ); if( x < 0 || y < 0 || x > getExtent().width || y > getExtent().height ) { // Outside the field return false; } switch( message.getEvent() ) { case TouchEvent.UNCLICK: clickButton(); return true; } return super.touchEvent( message ); } //#endif public void setDirty( boolean dirty ) {} public void setMuddy( boolean muddy ) {} private static class MyLabelField extends LabelField { public MyLabelField( String text, long style ) { super( text, style ); } public void layout( int width, int height ) { super.layout( width, height ); } public void paint( Graphics g ) { super.paint( g ); } } class Imagelistner implements FieldChangeListener { public void fieldChanged(Field field, int context) { } }Thank you...
Hi all
I solved this problem... Thank you for watching my problem...
And I create the component 'Image + String + box' with search (like the single selection) If you need it please send mail...
Kind regards
NGO -
Problem with fieldChanged() and custom button field
Hello
I created a custom button class by extending LabelField. I chose LabelField over field because the LabelField contains desirable properties that are already being implemented. The only problem I'm having has to do with the change listener. It seems to 'steal' the event click on other areas in my application.
For example, when I click on the custom button, a popupscreen with a listfield opens. When I click on an item in the listfield, then the fieldChanged() of custom button is called again...
Can you see anything wrong with my code?
package com.rantnetwork.fields; import com.rantnetwork.app.Constants; import net.rim.device.api.system.Display; import net.rim.device.api.ui.Color; import net.rim.device.api.ui.Field; import net.rim.device.api.ui.Font; import net.rim.device.api.ui.Graphics; import net.rim.device.api.ui.Ui; import net.rim.device.api.ui.XYEdges; import net.rim.device.api.ui.component.LabelField; import net.rim.device.api.ui.decor.BackgroundFactory; import net.rim.device.api.ui.decor.BorderFactory; public class CustomButtonField extends LabelField { private boolean highlighted = false; public CustomButtonField(String text, long style) { super(text, style | Field.FOCUSABLE | LabelField.ELLIPSIS); setPadding(10, 0, 10, 5); setFont(Font.getDefault().derive(Font.BOLD, Constants.DEFAULT_FONT_SIZE, Ui.UNITS_pt)); setBackground(BackgroundFactory.createLinearGradientBackground( 0x163d7c, 0x163d7c, 0x03162d, 0x03162d)); setBorder(BorderFactory .createBevelBorder(new XYEdges(1, 1, 1, 1), new XYEdges( Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK))); } public int getPreferredWidth() { return Display.getWidth() / 3; } protected void paint(Graphics graphics) { graphics.setColor(Color.WHITE); super.paint(graphics); } protected void drawFocus(Graphics graphics, boolean on) { // Do nothing } protected boolean navigationClick(int status, int time) { fieldChangeNotify(1); return true; } protected void onFocus(int direction) { if (!highlighted) { setBackground(BackgroundFactory.createLinearGradientBackground( 0x4bb7df, 0x4bb7df, 0x1b96da, 0x1b96da)); setBorder(BorderFactory.createBevelBorder(new XYEdges(1, 1, 1, 1), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK))); } } protected void onUnfocus() { if (!highlighted) { setBackground(BackgroundFactory.createLinearGradientBackground( 0x163d7c, 0x163d7c, 0x03162d, 0x03162d)); setBorder(BorderFactory.createBevelBorder(new XYEdges(1, 1, 1, 1), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK))); } } public void showHighlighted(boolean focus) { if (focus) { highlighted = true; setBackground(BackgroundFactory.createLinearGradientBackground( 0x4bb7df, 0x4bb7df, 0x1b96da, 0x1b96da)); setBorder(BorderFactory.createBevelBorder(new XYEdges(1, 1, 1, 1), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK))); } else { highlighted = false; setBackground(BackgroundFactory.createLinearGradientBackground( 0x163d7c, 0x163d7c, 0x03162d, 0x03162d)); setBorder(BorderFactory.createBevelBorder(new XYEdges(1, 1, 1, 1), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK), new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK))); } invalidate(); } public boolean isHighlighted() { return highlighted; } }behrk2 wrote:
Now, I'm not sure why customButton.setText (calling) would trigger the fieldChanged(). Can anyone think of a reason why he can do?
Thank you!
Can you think of a reason why we can't do that? The field has changed, after all! Of course, the context (second argument to fieldChanged) will be PROGRAMMATIC in this case, that might be a pretty good indication for you. But not invoke fieldChanged at all would be wrong.
This is why I don't like the idea of extending LabelField and not just the field for your custom badges - you have much less control over his behavior. If you want an example showing how to create abstract off-screen buttons, take a look at BaseButtonField and his descendants in managers, fields and advanced buttons.
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