UITableView Research

Question 1

The UITableView Data Source is a ________ that [does what], and is responsible for _________.

Answer 1

The UITableView Data Source is a Protocol that provides the methods we need to setup a TableView properly, and is responsible for configuring cells.

Question 2

What is a DataSource?

Answer 2

A DataSource is the object where all of the data that we want to display is held.
( Hint: If we are trying to display an Array of “Customers” that is located in our “ViewController”, then our DataSource is our ViewController. )

Question 3

True or False: Our DataSource IS the JSON data, or model objects.

Answer 3

False – Our DataSource is NOT the JSON data, or model objects.

Question 4

Where is our DataSource, generally?

Answer 4

Generally, our data source is where we have a collection of model objects.
(Tip: So far, this has been in our ViewController, but it doesn’t have to be.)

Question 5

What is the UITableView Delegate responsible for?

Hint: There are 3 answers.

Answer 5

The UITableView Delegate is a protocol responsible for:

• Managing cell selection
• Managing table and cell dimensions
• Managing cell accessories interaction

Question 6

What does the UITableView Delegate protocol do?

Answer 6

Provides us with methods we need to operate a TableView

Question 7

IndexPath: What is it?

Answer 7

Tells us where in our TableView a certain cell is located.

Question 8

True or False:

IndexPath contains both the section and row properties.

Answer 8

True.

Ex: A cell’s IndexPath might tell us for instance that a cell is in section 0 at row 5.

Question 9

Why is an IndexPath important?

Answer 9

This is important for looping through cells in order to display information among other things.

Question 10

Important Protocol Methods:

cellForRowAt

Answer 10

Responsible for cell creation and recycling

Question 11

Important Protocol Methods:

numberOfRowsInSection

Answer 11

Tells the tableView how many cells it has

Question 12

Important Protocol Methods:

didSelectRowAt

Answer 12

A specified cell was tapped

Question 13

Important Protocol Methods:

accessoryButtonTappedForRowWithIndexPath

Answer 13

An Accessory button was tapped

Question 14

UITableViews are made up of what?

Answer 14

A collection of UITableViewCells

Question 15

What are cells type defined by?

Answer 15

Identifiers

Question 16

Default Cell Components are:

Hint: 2 answers

Answer 16

• The Cell Content Area

- Accessory View

Question 17

What makes up the Cell Content Area?

Answer 17

• imageView – Always appears on the left before any label
• textLabel – Basic text label, left aligned
• detailTextLabel – Secondary text label, position based on style

Question 18

UITableViewCellStyle.Default

Answer 18

Text label (black and left-aligned), image view is optional

Question 19

UITableViewCellStyle.Value1

Answer 19

Text label (black and left-aligned), detail text label (blue and right-aligned).

Question 20

UITableViewCellStyle.Value2

Answer 20

Text label (blue and right-aligned), detail text label (black and left-aligned).

Question 21

UITableViewCellStyle.Subtitle

Answer 21

Text label (black and left-aligned, top of cell), detail text label (grey and left-aligned, bottom of cell, smaller text).

Question 22

Accessory Views:

case none

Answer 22

The cell does not have any accessory view. This is the default value.

Question 23

Accessory Views:

case disclosureIndicator

Answer 23

The cell has an accessory control shaped like a chevron. This control indicates that tapping the cell triggers a push action. The control does not track touches.

Question 24

Accessory Views:

case detailDisclosureButton

Answer 24

The cell has an info button and a chevron image as content. This control indicates that tapping the cell allows the user to configure the cell’s contents. The control tracks touches.

Question 25

Accessory Views:

case checkmark

Answer 25

The cell has a check mark in its right side. This control does not track touches. The delegate of the table view can manage check marks in a section of rows (possibly limiting the check mark to one row of the section) in its tableView(_:didSelectRowAt:) method.

Question 26

Accessory Views:

case detailButton

Answer 26

The cell has an info button without a chevron. This control indicates that tapping the cell displays additional information about the cell’s contents. The control tracks touches.