iPhone Interface Builder Windows

Implementation files

In this group we have all the . m files are presented
Ex:

• Sample App delegate .m
• Sample View controller .m
• Sample main .m    [main’s .m → method]

Interface builder file:
In this group we have all the .xib files are presented.
          a) sample view controller .xib
          b) Main window. Xib

NOTE:-
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

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

• File owner window

• Attribute inspector

• Library

• View

1) File owner window:

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.

• Files owner

• First responder

• View

2) Attribute inspector:

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

• a) Attribute inspector

• b) Connections

• c) Size inspector

• d) Identity

3) Library: 

It contains the controllers view on UI elements and   media also
UI elements:

Bars:

4) Data view:

NOTE:- Library consists of media tab. Which contains image added in the x code project we can easily drag them on to the view.

Frequently Asked iPhone Interview Questions & Answers