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iOS 5 App Development Basics

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Answer 50 questions in 15 minutes.
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Match each statement with the correct term.
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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. Class used for image manipulations such as scaling - rotation and translation. Its data structure represents a matrix used for affine transformations.
protocols
<>
CGAffineTransform
parameter

2. The files that contain all the scenes you will use in a project.
casting
320 x 480
storyboards
Command+1

3. Which Apple project template creates a simple view/view controller application
wrap
Command+R
Single View Application
NSDictionary

4. Property affecting an element's transparency
prototyping
accessible apps
alpha
Command + Tab

5. Code fragment for echo printing the name of a function as it loads (for tracing the sequence of code in a project...leaving breadcrumbs)

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

6. Used to set up an outgoing connection from the implementation code to the view
//blah blah blah
IBOutlet
/*blah blah blah */
rand( )%21

7. Key sequence to hide/show Navigator View
Command+0
Command+R
token
Human Interface Guide

8. In the US - the '#' symbol is often called the ____ symbol
while(<boolean expression>){/*stuff to do here*/}
pound
m
implicitly declare a matching instance variable

9. A unique combination of view controller and view
implementation file
scene
114 x 114
Gray circle with a white 'X' in it - positioned to the right of the text field box

10. What do the Autosizing settings of the Size Inspector do?
h
Determine how controls resize/reposition themselves when a device changes orientation
[myLabel setText:@'Howdy'];
nonatomic

11. What type of object does a web view expect as a parameter when loading a remote URL?
%
Look at the three icons at the upper left portion of the Debug console. The far left one - 'Show only the Variables View' will not show the NSLog-ed information. Click the center icon ('Show the Variables View and the Console') or the right icon ('Sh
NSURLRequest
C

12. Extension for MainStoryboard
int
header
storyboard
superclass

13. 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

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14. Class used to work with dates as objects
Collections
storyboard
NSDate
@2x

15. For a text field - what does the 'Clear Button' look like?

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16. Symbol often denoting a 'pointer'
ommand+Return
above
*
storyboard

17. This type of app is typically one screen - and gives you the basics with minimal interaction
&&
prototyping
Gray circle with a white 'X' in it - positioned to the right of the text field box
utility

18. A class that manages the user's interaction with the iDevice
view controller
[myLabel setText:@'Howdy'];
static
debugger

19. Syntax for reserving memory and initializing an object
[[<class name> alloc] init];
ption+Command+Return
NSString *userName;
NSMutableArray

20. Key sequence to hide/show the Assistant Editor
ption+Command+Return
instantiation
Seques .... relationships
[<object variable> <method name>: p1];

21. You are creating an app for a company whose URL is http://www.basicversity.com . What should be the company identifier for the app when you begin the project?
com.basicversity
Objective-C
Application Programming Interface
NSDictionary

22. In your implementation file - the _____ method (provided in stub form by Apple) runs after machine language code reserves some space in memory for your View. This method is often used to create a 'clean slate' as an app opens.
viewDidLoad
Instruments
Scheme
do not

23. This file contains the code that makes everything 'work'
bool
implementation file
@2x
alpha ... 0

24. Key sequence on a Mac to select between open application
Command + Tab
id
nil
property list

25. What are data detectors?
Cocoa Touch
Commmand-R
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
Home button

26. Symbol used for inheritance
affine
token
Option+Command+4
:

27. Another name for format specification
do{/*stuff to do here*/}while(<boolean expression>);
Model-View-Controller
token
Home button

28. An example of a common collection data type
IBAction
protocols
performance
NSArray

29. Syntax to include the fictitious user-created file 'myFile.h'

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30. The Round Rect Button is found in this library
Commmand-R
storyboard
Object Library
parameter

31. Name of the drop-down menu in Xcode that lets you select the device used with the iOS Simulator
%d
performance
Scheme
#import <UIKIT/UIKIT.h>

32. A virtual 'box' for organizing related projects
@2x
NSLog(@'%s' - __FUNCTION__);
workspace
main()

33. This type of app is mostly custom controllers and graphics
Document Outline Area or Outline View
class
segmented control
immersive

34. The first method called when a user taps an application icon
header
NSLog(@'%s' - __FUNCTION__);
Document Outline Area or Outline View
main()

35. Extension for interface file
Command+0
Disables the Return key on the keyboard unless the user has entered at least a single character of input into the field
xcodeproj
h

36. Class that allows URL management
NSMutableString
UILabel *myLabel = [[UILabel alloc] init];
NSURL
protocols

37. UI
User Interface
Commmand-R
nil
Gray circle with a white 'X' in it - positioned to the right of the text field box

38. To zoom between an overview of the entire storyboard and the actual size view - ______ the storyboard background.
Attributes Inspector
@
Double-click
proxy

39. Precondition repetition structure syntax
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface
@end
%d
while(<boolean expression>){/*stuff to do here*/}

40. An app has boolean variables 'hasShrunk' and 'hasMoved'. Write a boolean condition that checks if each are true
hasShrunk==YES && hasMoved == YES
label.text=@'Hello World!';
nibfile
Instruments

41. Document Apple uses to evaluate apps for the App Store
Human Interface Guide
count++;
512MB
@synthesize directive

42. Files used to create a class
XML
Human Interface Guide
interface and implementation files
protocols

43. Key sequence to open the Attributes Inspector
Option+Command+4
[<object variable> <method name>];
static
do{/*stuff to do here*/}while(<boolean expression>);

44. NS stands for...
static
nibfile
NeXSTEP
Seques .... relationships

45. Scaling - rotation - and translation are the most commonly used manipulations supported by _____ transforms - but skewing is also possible.
'Software Development Kit'
NSDate
affine
rand( )%21

46. Key sequence to open the Standard Editor
storyboard
ommand+Return
strong
'Software Development Kit'

47. 'plist' stands for...
/*blah blah blah */
Control-click on the View Controller's icon to bring up a Connections dialog
casting
property list

48. Return type indicating a method returns nothing
@2x
NSMutableString
void
superclass

49. The '@' symbol is shorthand for creating one of these
NSString
implementation file
NeXSTEP
Model-View-Controller

50. Denotes an instance method
Object-oriented programming
eXtensible Markup Language
Utility apps
-

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iOS 5 App Development Basics

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