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iOS 4 Programming Cookbook by Vandad Nahavandipoor

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Chapter 3. Constructing and Using Table Views

3.0. Introduction

A table view is simply a scrolling view that is separated into sections, each of which is further separated into rows. Each row is an instance of the UITableViewCell class, and you can create custom table view rows by subclassing this class.

Using table views is an ideal way to present a list of items to users. You can embed images, text, and whatnot into your table view cells; you can customize their height, shape, grouping, and much more. The simplicity of the structure of table views is what makes them highly customizable.

A table view can be fed with data using a table view data source, and you can receive various events and control the physical appearance of table views using a table view delegate object. These are defined, respectively, in the UITableViewDataSource and UITableViewDelegate protocols.

Although an instance of UITableView subclasses UIScrollView, table views can only scroll vertically. This is more a feature than a limitation. In this chapter, we will discuss the different ways of creating, managing, and customizing table views.

3.1. Creating a Table View Using Interface Builder

Problem

You want to create a table view using Interface Builder.

Solution

Drop an instance of the UITableView from the Library onto a container, such as an instance of UIView (see Figure 3-1).

The Library panel of Interface Builder
Figure 3-1. The Library panel of Interface ...

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