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Android ViewStub using Data Binding

ViewStub:

A ViewStub is an invisible, zero-sized View that can be used to lazily inflate layout resources at runtime.

When a ViewStub is made visible, or when inflate() is invoked, then layout resource is inflated. ViewStub replaces itself in its parent with the inflated View or Views. ViewStub exists in the view hierarchy until setVisibility(int) or  inflate() is invoked.

You can reduce memory usage and speed up rendering by loading the views only when they are needed.

Define ViewStub in XML file

 

Inflate ViewStub: 

We can specify layout at run time (viewStub!!.layoutResource) or in XML layout (android: layout)  attribute. A ViewStub can be load by using visible, or inflate().

 

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  • Vedesh Kumar
    I can inflate the views inside a LinearLayout and can get the same results. Why use this ViewStub?
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