How to navigate to another tab from one tab(pane m

2019-09-04 08:04发布

问题:

I have created 3 tabs in my blackberry application.The first tab allows the user to select a particular date range and search for entries.The search button is on first tab.The results are fetched from a sqlite database and displayed on grid view of third tab. This is the main code i have used for creating tabs:

  // setup the tab model with 3 tabs
  PaneManagerModel model = new PaneManagerModel();
  model.enableLooping( true );

  // setup the first tab
  VerticalFieldManager vfm = new VerticalFieldManager( 
      Field.USE_ALL_HEIGHT | Field.USE_ALL_WIDTH |
      Manager.NO_VERTICAL_SCROLL | Manager.NO_HORIZONTAL_SCROLL );
  LabelField lbl = new LabelField( "Content for tab 1", Field.FOCUSABLE );
  vfm.add( lbl );

  MyLabelField myLbl = new MyLabelField( "Tab 1" );
  NullField nullFld = new NullField( Field.FOCUSABLE );
  HorizontalFieldManager hfm = new HorizontalFieldManager();
  hfm.add( nullFld );
  hfm.add( myLbl );

  Pane pane = new Pane( hfm, vfm );
  model.addPane( pane );


  // setup the second tab
  vfm = new VerticalFieldManager( 
      Field.USE_ALL_HEIGHT | Field.USE_ALL_WIDTH |
      Manager.NO_VERTICAL_SCROLL | Manager.NO_HORIZONTAL_SCROLL );
  lbl = new LabelField( "Content for tab 2", Field.FOCUSABLE );
  vfm.add( lbl );

  myLbl = new MyLabelField( "Tab 2" );
  nullFld = new NullField( Field.FOCUSABLE );
  hfm = new HorizontalFieldManager();
  hfm.add( nullFld );
  hfm.add( myLbl );

  pane = new Pane( hfm, vfm );
  model.addPane( pane );

  //Setup the third tab
  vfm = new VerticalFieldManager( 
      Field.USE_ALL_HEIGHT | Field.USE_ALL_WIDTH |
      Manager.NO_VERTICAL_SCROLL | Manager.NO_HORIZONTAL_SCROLL );
  lbl = new LabelField( "Content for tab 3", Field.FOCUSABLE );
  vfm.add( lbl );

  myLbl = new MyLabelField( "Tab 3" );
  nullFld = new NullField( Field.FOCUSABLE );
  hfm = new HorizontalFieldManager();
  hfm.add( nullFld );
  hfm.add( myLbl );

  pane = new Pane( hfm, vfm );
  model.addPane( pane );

At present the results are properly getting displayed in third tab.But they are not on button click of fist tab.

I have included my SELECT statement in the third tab content.Instead i want to display the third tab results only after i click on search from the first tab.Till then i want my third tab to be disabled or rather inactive.

Anyone having any idea on this please share.Thanks.

回答1:

You cau call PaneManagerView.jumpTo(int,int).