Add the component to the display list for testing - This step starts the internal life cycle of the components, which is needed for real testing of its methods.
把组件增加到显示列表以进行测试——这一步启动了组件的内部生命周期，以便对其方法进行真正测试。
2
It USES a special "card" system to display open apps and features, allowing a user to cycle through them easily and switch back and forth between apps.
If you are required to display a collection of data retrieved from the service layer on this page, there is just no good opportunity in the JSF life cycle to fetch the data.