This week's book giveaway is in the Mac OS forum. We're giving away four copies of a choice of "Take Control of Upgrading to Yosemite" or "Take Control of Automating Your Mac" and have Joe Kissell on-line! See this thread for details.
Have you gone through the documentation of this class? API Demos package bundled with the SDK has plenty of examples that demonstrate the use of this class.
In a nutshell, this class is used to inflate XMLs that define Views and ViewGroups. Inflation is a process that includes: parsing of layout XMLs, creation of appropriate View objects and their addition to view hierarchy.