Objective-C Programming · the Big Nerd Ranch Guide (2nd Edition) (Big Nerd Ranch Guides) by Hillegass, Aaron -- Read -- Imperial Library of Trantor

Index

I. Getting Started

1. You and This Book

C and Objective-C How this book works How the life of a programmer works

2. Your First Program

Installing Apple’s developer tools Getting started with Xcode Where do I start writing code? How do I run my program? So, what is a program? Don’t stop

II. How Programming Works

3. Variables and Types

Types A program with variables Challenge

4. if/else

Boolean variables When curly braces are optional else if For the more curious: conditional operators Challenge

5. Functions

When should I use a function? How do I write and use a function? How functions work together How functions work together Standard libraries Local variables, frames, and the stack Scope Recursion Looking at frames in the debugger return Global and static variables Challenge

6. Format Strings

Using tokens Escape sequences Challenge

7. Numbers

Integers Integers Tokens for displaying integers Integer operations Floating-point numbers Floating-point numbers Tokens for displaying floating-point numbers The math library Challenge A note about comments

8. Loops

The while loop The for loop break continue The do-while loop Challenge: counting down Challenge: user input

9. Addresses and Pointers

Getting addresses Storing addresses in pointers Getting the data at an address How many bytes? NULL Stylish pointer declarations Challenge: how much memory? Challenge: how much range?

10. Pass-By-Reference

Writing pass-by-reference functions Avoid dereferencing NULL Challenge

11. Structs

Challenge

12. The Heap

III. Objective-C and Foundation

13. Objects

Objects Objects Classes Creating your first object Methods and messages Methods and messages Message sends Another message Class methods vs. instance methods Sending bad messages A note on terminology Challenge

14. More Messages

A message with an argument Multiple arguments Nesting message sends alloc and init Sending messages to nil id Challenge

15. Objects and Memory

On pointers and their values Memory management Memory management ARC

16. NSString

Creating instances of NSString NSString methods Class references Other parts of the documentation Challenge: finding more NSString methods Challenge: using readline()

17. NSArray

Creating arrays Accessing arrays Iterating over arrays NSMutableArray Old-style array methods Challenge: a grocery list Challenge: interesting names

18. Your First Class

Accessor methods Accessor methods Accessor naming conventions self Multiple files Class prefixes Challenge

19. Properties

Declaring properties Property attributes Dot notation

20. Inheritance

Overriding methods super Inheritance hierarchy description and %@ Challenge

21. Object Instance Variables and Properties

Object ownership and ARC Object ownership and ARC Creating the BNRAsset class Adding a to-many relationship to BNREmployee Challenge: holding portfolio Challenge: removing assets

22. Class Extensions

Hiding mutability Headers and inheritance Headers and generated instance variables Challenge

23. Preventing Memory Leaks

Strong reference cycles Weak references Zeroing of weak references For the More Curious: manual reference counting and ARC history For the More Curious: manual reference counting and ARC history Retain count rules

24. Collection Classes

NSSet/NSMutableSet NSDictionary/NSMutableDictionary Immutable objects Sorting arrays Filtering Collections and ownership C primitive types Collections and nil Challenge: reading up Challenge: top holdings Challenge: sorted holdings

25. Constants

Preprocessor directives Preprocessor directives #include and #import #define Global variables enum #define vs. global variables

26. Writing Files with NSString and NSData

Writing an NSString to a file NSError Reading files with NSString Writing an NSData object to a file Reading an NSData from a file Finding special directories

27. Callbacks

The run loop Target-action Helper objects Notifications Which to use? Callbacks and object ownership For the more curious: how selectors work

28. Blocks

Using blocks Using blocks Declaring a block variable Composing a block Passing in a block typedef Blocks vs. other callbacks More on blocks More on blocks Return values Anonymous blocks External variables Challenge: an anonymous block Challenge: using a block with NSNotificationCenter

29. Protocols

Calling optional methods

30. Property Lists

Challenge

IV. Event-Driven Applications

31. Your First iOS Application

GUI-based applications Getting started with iTahDoodle BNRAppDelegate Model-View-Controller The application delegate Setting up views Running on the iOS simulator Wiring up the button Wiring up the table view Saving and loading data Saving and loading data Adding a C helper function Saving task data Loading task data For the more curious: what about main()? For the more curious: running iTahDoodle on a device

32. Your First Cocoa Application

Getting started with TahDoodle Setting up views in Interface Builder Setting up views in Interface Builder Setting up the button Setting up the table view Adding autolayout constraints Making connections Making connections File’s Owner Setting the button’s target-action pair Connecting the table view Implementing NSTableViewDataSource Saving and loading data Challenge

V. Advanced Objective-C

33. init

Writing init methods A basic init method A basic init method instancetype Using and checking the superclass initializer init methods that take arguments Using accessors Multiple initializers Deadly init methods

34. More about Properties

More on property attributes More on property attributes Mutability Lifetime specifiers Advice on atomic vs. nonatomic Implementing accessor methods

35. Key-Value coding

Non-object types Key paths

36. Key-Value Observing

Using the context in KVO Triggering the notification explicitly Dependent properties

37. Categories

Challenge

VI. Advanced C

38. Bitwise Operations

Bitwise-OR Bitwise-AND Other bitwise operators Other bitwise operators Exclusive-OR Complement Left-shift Right-shift Using enum to define bit masks More bytes Challenge

39. C Strings

char char * String literals Converting to and from NSString Challenge

40. C Arrays

Challenge

41. Running from the Command Line

Command-line arguments More convenient running from the command-line

42. Switch Statements

Introspection Dynamic method lookup and execution Management of classes and inheritance hierarchies How KVO works Final notes Challenge: instance variables

Appendix: The Objective-C Runtime Next Steps Index More From Big Nerd Ranch...

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