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. This type of app is typically one screen - and gives you the basics with minimal interaction
utility
segmented control
Command+S
nibfile


2. Key sequence to run an app in Xcode
implementation file
do{/*stuff to do here*/}while(<boolean expression>);
:
Command+R


3. Connections between Objects in the Interface Builder and the header file are formed by _____-_______ from the object to the proper place in the header file
control-dragging
view controller
productivity
NSMutableString


4. What type of object does a web view expect as a parameter when loading a remote URL?
h
NSURLRequest
==
Object library


5. Write a line of code creating a pointer to a wall paper image called 'wp1' that refers to a resource in an app with the file name 'wallPaper_01.png'

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6. The library that contains the objects you can add to a view or XIB file
Send the 'resignFirstResponder' message to the object that currently controls the keyboard (such as a text field)
class
subclass
Object library


7. iOS functional building blocks
modal
Classes
@
superclass


8. The files that contain all the scenes you will use in a project.
disclosure
Human Interface Guide
wrap
storyboards


9. Every iOS application implements a subclass of _________
web view
self
*
UIApplication


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

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11. Synonym for interface file
C
==
header
UIViewController


12. An _______ is used to enable your code to talk to objects within views
NSString *phrase = @'Hello World';
IBOutlet
rand( )%21
Classes


13. Something the simulator cannot reliably test
performance
class
UIImage *wp1 = [UIImage imageNamed:@'wallPaper_01.png'];
1024 x 768


14. Key sequence to hide/show Navigator View
int
[<object variable> <method name>: p1];
Size Inspector
Command+0


15. Prior to ARC - you used these terms alot
alpha
retain - release - dealloc - autorelease
NeXSTEP
protocols


16. If you wish to 'echo print' breadcrumb info as you develop your app - this panel must be visible
The Console area of the Debug area
IBOutlet
==
*


17. Key sequence to open the Attributes Inspector
view
Application Programming Interface
control-dragging
Option+Command+4


18. These define to which messages the datasource and delegate respond
UILabel *myLabel = [[UILabel alloc] init];
eXtensible Markup Language
protocols
UIWindow


19. Attribute that informs Xcode not to worry about different parts of the application using a property at the same time
retain - release - dealloc - autorelease
xcodeproj
NO
nonatomic


20. 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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21. Class of collection data type which stores information as object/key pairs
[[<class name> alloc] init];
instance variable
IBAction
NSDictionary


22. An integrated web browser component
web view
performance
Xcode
segue


23. SDK

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24. Class that builds upon another class
interface and implementation files
x--;
eXtensible Markup Language
subclass


25. Tests to see whether two values are equal
Commmand-R
320 x 480
==
Xcode


26. Although it is possible to declare an instance variable and then define a corresponding property - you may also use @property alone to...
implicitly declare a matching instance variable
User Interface
disclosure triangle
Command+1


27. Tests to see whether two values are not equal
protocols
!=
Cocoa Touch
static


28. Objective-C is an extension (super set) of...
C
Utility apps
Send the 'resignFirstResponder' message to the object that currently controls the keyboard (such as a text field)
NSLog


29. Defines what an object can do
Snapshot feature
class
Actions
do{/*stuff to do here*/}while(<boolean expression>);


30. Any 'directive' statement begins with this symbol
320 x 480
Gray circle with a white 'X' in it - positioned to the right of the text field box
@
pound


31. Class that another class inherits from
-
NSString *phrase = @'Hello World';
superclass
Collections


32. Indicates a lack of any value at all
implementation file
[<object variable> <method name>: p1];
NSMutableString
nil


33. Size of iPhone retina icon image in pixels
<type> <variableName>;
114 x 114
512MB
[myLabel setText:@'Howdy'];


34. A common button type that indicates additional information is available
2
detail disclosure
disclosure triangle
Seques .... relationships


35. Boolean for 'false' in Objective-C
bgImages = [[NSArray alloc] initWithObjects: wp1 - wp2 - wp3 - wp4 - wp5 - nil];
pound
NO
CGAffineTransform


36. Data type for whole numbers
label.text=@'Hello World!';
[[<class name> alloc] init];
+
int


37. OOP
Determine how controls resize/reposition themselves when a device changes orientation
Object-oriented programming
IBAction)moveMe:(id)sender;
[myLabel setText:@'Howdy'];


38. Formatting placeholder for integers
%d
class
Instruments
Document Outline Area or Outline View


39. The name of the panel to the left of the Interface Builder Editor panel
accessible apps
<>
hasShrunk==YES && hasMoved == YES
Document Outline Area or Outline View


40. API
Application Programming Interface
storyboards
YES
NSString


41. To zoom between an overview of the entire storyboard and the actual size view - ______ the storyboard background.
storyboards
UILabel *myLabel = [[UILabel alloc] initWithString:@'GO!'];
segue
Double-click


42. The Inspector you would access to gain access to various accessibility attributes
Identity Inspector
onscreen 'widgets' a user can interact with
NSMutableArray
UITextField


43. Beginning with iOS4 - applications no longer terminate when the user presses the...
control-dragging
Home button
XML
myImage@2x.png


44. Collection of interface elements and data storage elements etc you can access from your applications
Isolate the functional components of an app
Cocoa Touch
Single View Application
UIApplication


45. Symbol used for inheritance
:
onscreen 'widgets' a user can interact with
token
Command+R


46. Calling a method is the same as...
NSLog(@'%s' - __FUNCTION__);
sending an object a message
Model-View-Controller
web view


47. Combining two messages into a single line of code
m
nested message send
+
view


48. Correct the error: label.text = 'Hello World !';

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49. If a method name includes a colon (:) this indicates a required _________
IBOutlet
Seques .... relationships
UIPicker
parameter


50. Other name for an *.xib file
nibfile
productivity
storyboards
alpha ... 0