Label BasicEditField

Similar Questions

• BasicEditField custom with an editable area of the rectangle under the label

  Hi all

  I am trying to create an EditField customization where the label is above the editable, and you can write inside a rectangle.

  The problem is that I can't focus on the rectangle and I can't write to it.

  I replaced the BasicEditMethods as follows:

      public int getPreferredWidth() {
          return Display.getWidth() - _hpadding * 2;
      }
  
      public int getPreferredHeight() {
          return getFont().getHeight() * 2;
      }
  
      public void layout( int width, int height ) {
          setExtent(getPreferredWidth(), getPreferredHeight());
      }
  
      public boolean isFocusable() {
          return true;
      }
  
      public void paint( Graphics g ) {
          int defaultColor = g.getColor();
          g.drawText(_label, _hpadding, 0);
          g.setColor(_rectangleColor);
          g.drawRect(_hpadding, getFont().getHeight(), getPreferredWidth(), getFont().getHeight());
          g.setColor(defaultColor);
          super.paint(g);
      }
  

  If you have any suggestions, I like you a lot.

  Gabriela.

  You can use the API to achieve this.  Take a look at the post below for examples.

  http://supportforums.BlackBerry.com/Rim/Board/message?board.ID=java_dev&thread.ID=21371

• Calculation of the minimum required size for a BasicEditField

  Hello

  I hope someone can help! This is continued in another post, I had about resize a BasicEditField so I could put a button on the same line.

  I re-size my BasicEditField to be half the width of the screen. I also set the maximum number of characters which they reached 6. When the user tries to enter the character 7 I get an alert that the field is full. I have a border around the BasicEditField and the user, it seems they should be able to enter more characters that is to say the space to enter the number is much larger than 6 characters.

  Does anyone know a way to calculate the size so the domain will be the right size it of to say to fit to the label and up to 6 characters, but not bigger?

  I hope I've explained this well enough to understand. Thanks in advance for any help

  Just put a code here:

  http://supportforums.BlackBerry.com/T5/Java-development/please-help-with-trying-to-put-a-BasicEditFi...

• Problem with maintaining the original text of basiceditfield even on unfocus after typing the text.

  I have a Basiceditfield with the original text. Here is the code:

  searchField = new EditField ("","", 1024, EditField.FILTER_DEFAULT | ") EditField.NO_NEWLINE)
  {
  protected void onFocus (int direction)
  {
  setLabel("");
  This.Invalidate ();
  };
  protected void onUnfocus()
  {
  setLabel ("Search");
  This.Invalidate ();
  };
  };
  searchField.setLabel ("Search");

  Text initially searchfield is "search". Onfocus his game to «» I type something in the searchfield, assumes that "ab". When the focus is removed from searchfield label has the value "Searchab". while I want to as "search". Help, please.

  on the focus, use getText, check if it is 'Search', setText to «»
  about onfocus, use getText, check whether it is "", set it to "search".
  on keyChar, use getText, check if "search, use setText for" ", and then return super.»

• BasicEditField the cursor with the wheel of trapping

  Hello

  I created a customized to handle the keypress TrackballClick and Enter BasicEditField.

  It works very well on blackberry with a trackball (latest), but the cursor is trapped in the field with Blackberry with a wheel (like the 8703e). As soon as it gets the focus, the cursor may not go out (or an upper field) or one of the below

  Here is the code:

  public class SearchInputField extends BasicEditField implements TrackwheelListener {
      ConnectionScreen parentScreen;
  
      public SearchInputField(String label, String initialValue, int maxNumChars, long style, ConnectionScreen screen) {
          super(label, initialValue, maxNumChars, style);
          this.parentScreen = screen;
      }
  
      public int getPreferredWidth() {
          return Display.getWidth() / 2;
      }
  
      public boolean keyChar(char key, int status, int time) {
        switch( key ) {
          case Characters.ENTER:
              parentScreen.PerformSearch();
              return true;
          }
          return super.keyChar(key, status, time);
      }
  
      public boolean trackwheelClick(int status, int line) {
          parentScreen.PerformSearch();
          return true;
      }
  
      public boolean trackwheelUnclick(int status, int line) {
          return true;
      }
  
      public boolean trackwheelRoll(int amount,int status, int line) {
          return true;
      }
  

  Any idea?

  Thank you

  No, he stayed in the first.

  In any case, fixed it by returning false in the method of the wheel (do not know why, but anyway... )

• Extension BasicEditField

  Hello

  I want to create my own implementation of BasicEditField which will limit the number of characters entered.

  In short, I want to just set up a way to set the maxLength.

  I am currently inside the keyChar (.), counting the number of characters and returns false if the maximum has been reached.

  Is this the only solution?

  Thank you

  G

  You can use this BasicEditField constructor

  BasicEditField (String initialValue, label As String, long style, int maxNumChars)

  where maxNumChars is the maximum number of characters.

  Press the button Bravo thank the user who has helped you.

  If your problem has been resolved then please mark the thread as "accepted Solution".

• Change width BasicEditField

  How can I change the width of the BasicEditField, which, by default, puts on the screen.

  Thank you

  Arturo

  First of all, the getPreferredWidth will not help with BasicEditField. ButtonField, for example, uses during its layout(); Don't bother editing fields. getPreferredWidth/getPreferredHeight are mostly calls with permission and are generally ignored during the presentation of the screen.

  Second, your attempt with setExtent is a valid concept - you simply forgot to call super.layout in your replacement of page layout.  In fact, the simplest approach would be to calculate your required width (let's call it myWidth) and use it like this:

  protected void layout(int width, int height) {
    // calculate myWidth here or in constructor / setLabel / etc.
    // then invoke the following:
    super.layout(Math.min(width, myWidth), height);
  }
  

  If you're wondering how to calculate the necessary width, take a look at Font.getAdvance () methods. Add advance your label in advance of the wider character (say, 'W') multiplied by the desired number of characters.

  If you are never going to use setLabel on your areas of custom edition, do not forget to replace setLabel. Something like this should be enough:

  public void setLabel(String newLabel) {
    super.setLabel(newLabel);
    // calculate your new myWidth here unless you do it
    // inside your layout() override
    // then force re-layout using this:
    updateLayout();
  }
  

• right-aligned a BasicEditField within the screen

  Hello

  How do your right justify a BasicEditField in a screen?

  If you do the following, framed in any case left field shows:

  Processes = new BasicEditField ("process", 7, Field.FIELD_RIGHT);
  This.Add (processes);

  If you create a LabelField, you can right-aligned it on the screen with this:

  This.Add (new LabelField ("Login al sistema", LabelField.FIELD_RIGHT));

  TKS.

  I wrote my own...

  import net.rim.device.api.system.Display;
  import net.rim.device.api.ui.Field;
  import net.rim.device.api.ui.FieldChangeListener;
  import net.rim.device.api.ui.component.EditField;
  import net.rim.device.api.ui.component.LabelField;
  import net.rim.device.api.ui.container.HorizontalFieldManager;
  
  public class JustifiedEditField extends HorizontalFieldManager implements FieldChangeListener {
  
      LabelField lf;
      EditField ef;
      int dw = Display.getWidth();
      int rightMargin;
  
      public JustifiedEditField(String label, String value, int maxChars, long style) {
          super(USE_ALL_WIDTH);
          ef = new EditField(null, value, maxChars, style) {
              protected void onDisplay() {
                  update(0);
              }
  
              protected void update(int d) {
                  super.update(d);
                  int efw = getFont().getAdvance(super.getText());
                  setPosition(dw - efw - rightMargin, 0);
              }
          };
          ef.setChangeListener(this);
          lf = new LabelField(label);
          add(lf);
          add(ef);
      }
  
      public LabelField getLabelField() {
          return lf;
      }
  
      public EditField getEditField() {
          return ef;
      }
  
      public String getText() {
          return ef.getText();
      }
  
      public void setRightMargin(int m) {
          rightMargin = m;
      }
  
      public int getRightMargin() {
          return rightMargin;
      }
  
      public void fieldChanged(Field field, int context) {
          invalidate();
      }
  
  }
  

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