How to make inline LabelFields

Similar Questions

• How to make a LabelField align right when the text is long?

  In order to make a good LabelField aligned, I create the LabelField with style "FIELD_RIGHT and add it to a value for money, it works when the text can be displayed on a single line." But when the text is long, over a single line, it works well.

  For example, if the text is "ABDEL FARZAD", appears like this:

  

  It looks like aligned left

  How can I get it?

  .

  No guarantee, but instead of Field.RIGHT, try

  FIELD. USE_ALL_WIDTH | DrawStyle.RIGHT

• How to make a labelfield right aligned text

  I want to make my label text aligned to right field in then the screen

  LabelField content = new LabelField(description,LabelField.FOCUSABLE|USE_ALL_WIDTH|FIELD_RIGHT)
  

  This labelfield, I add to an optimization of internal resources

  VerticalFieldManager vfm = new VerticalFieldManager (
                  VerticalFieldManager .VERTICAL_SCROLL
                          | VerticalFieldManager .FOCUSABLE) {
              protected void sublayout(int width, int height) {
  
                  super.sublayout(Display.getWidth() - 20, height);
                  setExtent(Display.getWidth() - 20, 33);
              }
          };
  

  This optimization of internal resources, I add to main vfm called external resources management and in defining its position

  layoutChild(vfm, maxWidth, maxHeight);
                      setPositionChild(vfm,290, 123);
  

  My screen is 320 x 240

  But the text goes out of the screen. Help, please

  Forget all the positioning in the Manager and try this:

  Content LabelField = new LabelField (description, LabelField.FOCUSABLE |) DRAWSTYLE. (RIGHT);

  Announcing this to a VerticalFieldManager or directly to your screen and I think this should work for you.

  If this is not the case, let know us and we can look at the positioning of the field.

  As a side note, it seems doubtful:

  protected void sublayout (int width, int height) {}
  Super.sublayout (Display.GetWidth () - 20, height);
  setExtent (Display.getWidth () - 20: 33);
  }

  What you trying to do?  Why is the 33 important?

• How to create a labelfield with fixed width and dynamic height?

  I got this question in fact for a long time and I have not found answer in this forum so far.

  As we know, we can use:

  public int getPreferredWidth()
  {
      return fixedSize;
  }
  
  protected void layout(int width,int height)
  {
      super.layout(getPreferredWidth(), getPreferredHeight());
      super.setExtent(getPreferredWidth(), getPreferredHeight());
  }
  

  to set the width fixed in a field, but if the text is too long and should be multiline, this will bring problem, getPreferredHeight() only returns the preferred height, which is actually not the actual height, so the text will be hashed.

  So what should this setting? height?

  super.setExtent(getPreferredWidth(), height));
  

  No.... the height value is too large.

  So, how can we set this parameter to make this labelfield looks perfectly.

  Any idea?

  A search on the web is expected to increase a lot of examples of functions in Java text wrapping. Especially for BlackBerry, you can use Font.getAdvance (String text, int start, int len) to measure the width of a text segment without the expense of creation of substrings.

  The basic logic is to analyze the text character by character. If the "\n" character, force a line break. If the character is a space, then it is a line break candidate; Check if the line so far is set. If so, then move the candidate to that character end and continue; If this is not the case, go back to the previous candidate break and put an end to the line right there. The loop is initialized so that there is always at least one character on the line. The process ends when you run out of text. Details (including dealing with empty text, several spaces, etc.) are kept as an exercise for the reader, or search the Web well.

  I wouldn't worry efficiency. Put on the page of the field is not all that often, and when it's done, there's no escape from the need to make the work of packaging line at some point before the text is rendered on the screen. One way to avoid unnecessarily repeating work is to memoize the function of packaging line: wrapped lines and the width of the film cache and reuse them as needed. The cache is marked invalid if changes to text or the current width and the width of the film cached differ.

• How to make the decrement on listField list?

  IM create code like this:

  public class ScreenList extends MainScreen implements ListFieldCallback{
      String x[];
      ListField list;
      public ScreenList(){
          String arr[] ={"1", "2","3","4","5","6"};
          list = new ListField();
  
          int length = arr.length;
          x = new String[ length];
          for(int i=length-1; i>=0; i--){
              x[i]=arr[i];
              //add(new LabelField(arr[i]);
          }
          list.setSize(length);
          list.setCallback(this);
          this.add(list);
      }
  
      public void drawListRow(ListField arg0, Graphics arg1, int index, int y,
              int width) {
          // TODO Auto-generated method stub
          arg1.drawText(x[index], 0, y);
  
      }
  

  If I always try on Simulator Simulator print 1,2,3,4,5,6, but if I try to print to new Label 6,5,4,3,2,1 result

  My question... How to make the decrement with listField list implements reminder? Thanks in advance...

  Oops sorry correction instead of length use length - 1

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