the extjs effection(slidein slideout)

Hi: From the api I found extjs provide some basic animation,for开发者_Go百科 exmaple the fadeIn fadeOut and etc. However when I use them, I meet some problems.

I am confusing about the component of its show and hidden.

The animation is called to the Element,for exapmle,

form.getEl.fadeIn(...);

But for a component,it has a attribute of hidden,

And for a html element,it has a attribute of display,and visibility.

So what does the extjs use when we fadeOut/slideOut a Ext.Element? Also what does the extjs use when hidden a Ext.Component?

AFAIK, components are not ready to support animations. But this depends mostly on the layout of the container of this component.

For exemple, the border layout use a kind of "slideIn/Out" for its "collapsable" components.

You can try any animation on the component's getEl(), but it can have unpredictable effects, depending on the layout.