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iOS 5 App Development Basics

Instructions:

Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Precondition repetition structure syntax
instance variable
while(<boolean expression>){/*stuff to do here*/}
Isolate the functional components of an app
Object library

2. Key sequence to hide/show the Assistant Editor
Command+S
myImage@2x.png
ption+Command+Return
onscreen 'widgets' a user can interact with

3. ______ enable applications to store multiple pieces of information in a single object
!
UIImage *wp1 = [UIImage imageNamed:@'wallPaper_01.png'];
2
Collections

4. The Inspector you would use to control your layout in Interface Builder
int
UIApplication
conform
Size Inspector

5. An array of background images called 'bgImages' has been declared as an instance variable in your header file. You have created a set of 5 background images stored in UIImage variables wp1 through wp5. Write a line of code that initializes the array.
storyboards
below
disclosure
bgImages = [[NSArray alloc] initWithObjects: wp1 - wp2 - wp3 - wp4 - wp5 - nil];

6. Under what circumstances would you need an outlet for a button if it's just needed to trigger an action?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

7. IDE
@
Integrated Development Environment
Object library
Human Interface Guide

8. Syntax for single-line comment
UIImage *wp1 = [UIImage imageNamed:@'wallPaper_01.png'];
//blah blah blah
+
2

9. Formatting placeholder for a floating point value with one digit on the left of the decimal and two digits on the right
Human Interface Guide
%1.2f
Utility apps
UIWindow

10. Way to refer to an object within its own methods
UIViewController
self
%@
IBAction)moveMe:(id)sender;

11. What computer language is the storyboard written in?
property list
%@
NSLog(@'%s' - __FUNCTION__);
XML

12. Implements a logical OR condition
while(<boolean expression>){/*stuff to do here*/}
alpha
||
ption+Command+Return

13. Allows you to easily track multiple versions of your project
NSDictionary
NSMutableArray
Snapshot feature
alpha ... 0

14. A unique combination of view controller and view
utility
scene
pipe
do{/*stuff to do here*/}while(<boolean expression>);

15. 'Build and run' keyboard shortcut
rand( )%21
Attribute settings for some onscreen controls (like text areas) that analyze content and provide helpful links based on what they find. For example - phone numbers can be touched to dial the phone; web addresses can launch Safari if tapped - etc
myImage@2x.png
Commmand-R

16. iOS functional building blocks
Classes
if(<boolean condition>){/* stuff to do*/} else{ /*stuff to do*/}
protocols
UIWindow

17. Name of the '|' symbol
void
pipe
label
NSURLRequest

18. The bar across the top of the Editor area that shows you the item you are editing
protocols
Jump Bar
convenience
casting

19. Single line text field
affine
UITextField
instantiation
'Interface Builder'

20. ______ are variables that can store a ____ to an object.
Outlets ... pointer
Disables the Return key on the keyboard unless the user has entered at least a single character of input into the field
*
NSLog

21. MVC
Model-View-Controller
%
'Interface Builder'
if(<boolean condition>){/* stuff to do*/} else{ /*stuff to do*/}

22. Proper way to pronounce a *.xib file

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

23. An _______ is used to enable your code to talk to objects within views
Control-click on the View Controller's icon to bring up a Connections dialog
NSURL
*
IBOutlet

24. Shortcut for writing: x = x - 1;
nonatomic
:
x--;
UITextField

25. You have an instance variable called 'myLabel' that is a member of UILabel. In an app - you set it's text property to 'Howdy' with the correctly-written command: myLabel.text = @'Howdy'; Re-write this command using [ ] message-sending syntax

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

26. This file contains the code that makes everything 'work'
implementation file
void
Option-click a symbol
nil

27. This type of app typically involves hierarchical data
@synthesize directive
*
NSURLRequest
productivity

28. This keyword in the property directive is related to the concept of mutability and basically asks Apple to handle the details. This is the more 'relaxed' - less 'powerful' setting of two possibilities
The Console area of the Debug area
&&
nonatomic
IBOutlet

29. The Inspector you would access to gain access to various accessibility attributes
CGAffineTransform
bool
Identity Inspector
UIPicker

30. The object currently in control and interacting with the user
scene
First Responder
contentSize
storyboards

31. Recommended image type for button graphics
CGAffineTransform
Option+Command+4
png
Command+0

32. IDE for iPhone Development
Xcode
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface
do not
do{/*stuff to do here*/}while(<boolean expression>);

33. A ______ is where you edit a view and assign a controller to it.
controller
UILabel *myLabel = [[UILabel alloc] initWithString:@'GO!'];
%@
scene

34. RAM for iPhone
Cocoa Touch - Media - Core Services - Core OS
h
512MB
1024 x 768

35. A virtual 'box' for organizing related projects
static
Hold down the Option key and point to the other label. The distance will be shown
workspace
hash

36. Document Apple uses to evaluate apps for the App Store
Human Interface Guide
implementation file
ommand+Return
Model-View-Controller

37. Property affecting an element's transparency
alpha
affine
header
Model-View-Controller

38. Other name for an *.xib file
Option+Command+ 0
NSObject
UITextView
nibfile

39. Given: #import <UIKit/UIKit.h> @interface WelcomeViewController : UIViewController @end The superclass for WelcomeViewController
casting
%@
UIViewController
NSLog(@'%s' - __FUNCTION__);

40. Negation symbol
UILabel *myLabel = [[UILabel alloc] initWithString:@'GO!'];
prototyping
!
float

41. Storage place for a piece of information specific to a class
variable
instance variable
Object Library
do not

42. Fixed iteration repetition control structure syntax
Objective-C
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
com.basicversity
superclass

43. Dimensions of iPhone (in points)
header
Seques .... relationships
320 x 480
NSObject

44. An alternative way to see the connections between an object in the Interface Builder and it's code in Xcode without using the Connections inspector

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

45. Class used for image manipulations such as scaling - rotation and translation. Its data structure represents a matrix used for affine transformations.
Nib (but a few call it 'zib' but that's not preferred)
CGAffineTransform
UIViewController
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}

46. Master class in iOS
NSObject
for(<initialization>;<test condition>;<update instruction>){/*do this over and over*/}
implementation file
myImage@2x.png

47. In the MVC design pattern for iOS apps - this aspect provides the underlying data and methods that offer information to the rest of the application
114 x 114
Isolate the functional components of an app
productivity
model

48. Multiline text entry block
@2x
UITextView
header
Command plus the navigator's position in the selector. For example - the project navigator shortcut is Command-1

49. The Round Rect Button is found in this library
[<object variable> <method name>: p1];
debugger
Object Library
below

50. Extension for implementation file
m
First Responder
Send the 'resignFirstResponder' message to the object that currently controls the keyboard (such as a text field)
class

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iOS 5 App Development Basics

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