Test your basic knowledge |

iOS 5 App Development Basics

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. In most graphical user interfaces - a _____ view is a view that must be dismissed ('OK' button - 'Cancel' button for example) before the user can perform any other actions in the application.
modal
%@
float
graduationParty ... addAttendee:withDish

2. Size of iPhone 'lo-res' icon image in pixels
Cocoa Touch
Disables the Return key on the keyboard unless the user has entered at least a single character of input into the field
scene
57 x 57

3. UI
Nib (but a few call it 'zib' but that's not preferred)
Control-click on the View Controller's icon to bring up a Connections dialog
C
User Interface

4. Used to indicate any type of object
id
#import <UIKIT/UIKIT.h>
parameter
Isolate the functional components of an app

5. How do you show a storyboard file as source code?

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6. The first method called when a user taps an application icon
main()
Option+Command+ 0
[<object variable> <method name>];
//blah blah blah

7. Attribute that informs the system that the object referred to needs to be kept around and not discarded from memory
strong
attributes
segue
hasShrunk==YES && hasMoved == YES

8. @synthesize directives should be placed _____ (above or below) the @implementation directive in the implementation file
attributes
NSObject
web view
below

9. In the US - the '#' symbol is often called the ____ symbol
pound
view
NSArray
-

10. Implements a logical AND condition
NSMutableArray
&&
Right-click on it in the Navigator panel and choose 'Open as...' and select 'Source Code'
NSDate

11. Apps written to assist users with special disabilities
accessible apps
count++;
[myLabel setText:@'Howdy'];
instantiate

12. The Inspector you will need if you want to connect a custom class to an object in Interface Builder
Model-View-Controller
#import 'myFile.h'
interface file
Identity Inspector

13. Used to display image file resources and show simple animations
Treats the field as a password - hiding each character as it is typed
eXtensible Markup Language
The Console area of the Debug area
image view

14. Memory aid for keyboard shortcuts in the Navigator panel

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15. A unique combination of view controller and view
Attributes Inspector
scene
[myLabel setText:@'Howdy'];
==

16. 'plist' stands for...
IBOutlet
property list
below
Option+Command+ 0

17. Which Apple project template creates a simple view/view controller application
Single View Application
||
variable
myImage@2x.png

18. What do the Autosizing settings of the Size Inspector do?
The Console area of the Debug area
stub
Determine how controls resize/reposition themselves when a device changes orientation
NSURLRequest

19. Given: [graduationParty addAttendee: @'Aunt Jane' withDish: @'deviled eggs']; The 'receiver' is _______; the 'selector' is _________
NSString *phrase = @'Hello World';
graduationParty ... addAttendee:withDish
Program received signal: EXC_BAD_ACCESS
IBAction

20. The name of the panel to the left of the Interface Builder Editor panel
NSDictionary
Document Outline Area or Outline View
controller
ommand+Return

21. @property directives should be placed ____ (above or below) any IBActions in the header file
implementation file
<>
above
below

22. An _______ is used to 'advertise' a method in your code that should be called when a certain event takes place
bool
double
sending an object a message
IBAction

23. Syntax for reserving memory and initializing an object
nonatomic
!
[[<class name> alloc] init];
[myLabel setText:@'Howdy'];

24. A view has a 'Shrink' button whose label needs to change once it is clicked to 'Grow'. Write a 'message' type command to change it's label to 'Grow'

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25. 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
interface and implementation files
@end
model
do{/*stuff to do here*/}while(<boolean expression>);

26. iPhone and iPad ____ support .png transparency
accessible apps
Command plus the navigator's position in the selector. For example - the project navigator shortcut is Command-1
do not
NO

27. What are data detectors?
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
Application Programming Interface
Double-click
proxy

28. In the UK - the '#' symbol is often called the ____ symbol
detail disclosure
IBAction
hash
NSString *phrase = @'Hello World';

29. Name of the '|' symbol
y *= 5;
NSMutableArray
float
pipe

30. Way to refer to an object within its own methods
disclosure triangle
self
%d
switch

31. Every iOS application implements a subclass of _________
C
pound
sending an object a message
UIApplication

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

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33. A common button type that indicates additional information is available
detail disclosure
Model-View-Controller
nil
Hold down the Option key and point to the other label. The distance will be shown

34. ______ are variables that can store a ____ to an object.
token
debugger
Outlets ... pointer
%1.2f

35. Synonym for interface file
Program received signal: EXC_BAD_ACCESS
header
retain
parameter

36. Any 'directive' statement begins with this symbol
The Console area of the Debug area
Cocoa Touch
x--;
@

37. XML
114 x 114
Cocoa Touch
eXtensible Markup Language
1024 x 768

38. Extension for an iPhone/iPad app
Size Inspector
xcodeproj
Instruments
Cocoa is the development framework used for most native Mac OS X applications; Cocoa Touch is customized for a touch interface

39. Symbol used for inheritance
Cocoa Touch
:
Outlets ... pointer
UIPicker

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

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41. Framework used to write iPhone apps
controller
Identity Inspector
320 x 480
Cocoa Touch

42. Method used to print information in an output panel
NSLog
sending an object a message
header
Object Library

43. Syntax for sending an object a message with no parameters
NeXSTEP
NSArray
[<object variable> <method name>];
Command+S

44. What type of object does a web view expect as a parameter when loading a remote URL?
proxy
YES
property list
NSURLRequest

45. MVC
[shrinkButton setTitle:@'Grow' forState: UIControlStateNormal];
affine
main()
Model-View-Controller

46. An _______ is used to enable your code to talk to objects within views
UIImage *wp1 = [UIImage imageNamed:@'wallPaper_01.png'];
IBOutlet
Model-View-Controller
NSString *phrase = @'Hello World';

47. Term used to describe each screen of an iPhone app
NSLog
label.text=@'Hello World!';
view
debugger

48. Declare and initialize a string that says: 'Hello World' whose identifier if 'phrase' . Use the shortest command possible.

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

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50. A tool in Xcode to help fix broken code
%@
debugger
Identity Inspector
NSMutableArray