In this group we have all the . m files are presented
Interface builder file:
In this group we have all the .xib files are presented.
a) sample view controller .xib
b) Main window. Xib
If we want to add any additional frame work
Framework → right click on the framework → add → Existing framework → Select the framework → Click an add
Interface builder is develop in 1988 it is used for developing application for NEXTSTEP , OPEN STEP, MAC OS, IOS development.
IB support two formats .nib, .xib
IB is mainly used for designing the application and it is a supported tool. It has 4 windows
It contains the copy of nib file [or xib] and it is always be the first icon in any nib file. It has three icons.
It is mainly used for setting the properties of view elements.
Ex: If you want to change the color of a view we use this it is presents in the tools section.
Tools → inspector
It contains 4 tabs those are
It contains the controllers view on UI elements and media also
NOTE:- Library consists of media tab. Which contains image added in the x code project we can easily drag them on to the view.