mg不朽的情缘技巧

書名： Vaadin 7 UI Design By Example：Beginner’s Guide
作者名： Alejandro Duarte
本章字數： 188字
更新時間： 2021-08-13 16:17:40

Time for action – adding input component into the layout

Implement your initLayout method using the following snippet of code:

private void initLayout() {
  layout.setMargin(true);
  layout.setSpacing(true);
  layout.addComponent(combo);
  layout.addComponent(textField);
  layout.addComponent(checkBox);
  layout.addComponent(button);
  layout.addComponent(resultsLayout);
  
  setContent(layout);
}

What just happened?

We let the layout to have an appropriate margin and spacing. This last one adds some space between components instead of having them bonded inside the layout. Following that, we add combo, textField, checkBox, button, and a VerticalLayout component to put some labels for showing the results of the test case execution. Finally, the last statement sets layout as content of the page.

Checkboxes

Everyone knows checkboxes. Have you ever accepted license agreements during software installations? Just in case, this is a checkbox:

We have already created our checkbox:

private CheckBox checkBox = new CheckBox("Keep previous results");

Note

The getValue and setValue methods of CheckBox return Boolean objects, no need to cast the returned value as we did with the combo component. You can do just this:

Boolean checked = checkBox.getValue();

Removing components from layouts

Before explaining how we show the results, let's see how we can execute the selected TestSet instance.

官术网_书友最值得收藏!

Vaadin 7 UI Design By Example：Beginner’s Guide

Time for action – adding input component into the layout

What just happened?

Checkboxes

Note

Removing components from layouts