gwt - TabLayoutPanel 禁用 Tab GWT

Question

如何禁用 TabLayoutPanel 中的选项卡(即用户单击时无法打开选项卡)？ 我在网上搜索但找不到解决方案

谢谢

Answer 1

使用 BeforeSelectionHandler :

TabLayoutPanel myPanel = new TabLayoutPanel();
// Add children...

myPanel.addBeforeSelectionHandler(new BeforeSelectionHandler<Integer>() {
  @Override
  public void onBeforeSelection(BeforeSelectionEvent<Integer> event) {
    // Simple if statement - your test for whether the tab should be disabled
    // will probably be more complicated
    if (event.getItem() == 1) {
      // Canceling the event prevents the tab from being selected.
      event.cancel();
    }
  }
});

如果您希望禁用选项卡的样式与启用的选项卡不同，您可以使用 TabLayoutPanel#getTabWidget 获取选项卡小部件并为其添加样式名称。