GWT TabLayoutPanel到披露面板

Question

我試圖TabLayoutPanel加入到DisclosurePanel但是當我展開DisclosurePanel一個選項卡僅閃爍，我看不到標籤面板及其內容： 這裏是我的代碼：

 TabLayoutPanel tabPanel = new TabLayoutPanel(2.5, Unit.EM); 


        ..... 

       I have FieldPanel which correctly works 
       for (Widget w : fieldPanelContent) { 
       tabPanel.add(w, "Internal"); 
       } 

      } 

     } 

    } 

    } 

    tabPanel.setVisible(true); 

    tabPanel.setTitle("My TAb Panel"); 
    tabPanel.selectTab(0); 
    parent.add(tabLayoutPanel); 
where parent is my DisclosurePanel 

莫非你請，幫我解決這個問題？先謝謝你！

Answer 1

您正在將佈局與非佈局面板混合使用。如果您沒有明確地將TabLayoutPanel的大小設置在DisclosurePanel之內，則此操作無法正常進行。