Objective-C Fundamentals

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INDEX 331 collections (continued) elements of 76–78 iterating through 79–80 boxing 88–91 nil vs. NULL value vs. NSNull class 90–91 NSNumber class 89 NSValue class 90 dictionaries 82–88 accessing entries in 84–85 adding key/value pairs 85–86 constructing 82–84 enumerating all keys and values 86–88 filtering 220 making Rental Manager application data driven 91–94 colon character 62–63 commitAnimations method 148 commitEditingStyle:forRowAtIndexPath method 246 Common Intermediate Language assemblies. See CIL communicating, with objects 62–66 comparison operators 39, 296–298 compile-time errors 296 compile-time type 164 compiling, Coin Toss game 21–22 compliance, with KVC 213–217 accessing properties via 214 key paths 215 values 215–217 computing power, adjusting expectations for 5–7 hardware specifications 6 unreliable internet connections 7 conditional operator 302–303 conditional statements 300–305 conditional operator 302–303 if-else statement 301–302 switch statement 303–305 conditions, predicate complex 221–222 expressing 220–221 configureCell: atIndexPath method 242, 249 Console section 278 constraints, for integral numbers in real world 33–34 CONTAINS operator 222 containsObject: message 78 context-sensitive editor pane 11 Continue button, Xcode debugger window 25, 27 continue statement 309, 311 controls, adding to view 15–16 copy attribute 111, 120 copy message 262 copyWithZone message 190 Core Data attributes 233–234 Core Data entities 229–230, 232–234, 236 Core Data framework error domains 204 history of 229–231 objects 231–232 managed 231–232 persistent store coordinator 231 resources 232–234 attributes 233–234 entities 232–233 relationships 234 Core Data relationships 234 Core Data stack 231–232, 237 Core Data templates, Xcode 234–235 Core Data-based projects 231 CoreData.framework 231–232 Corona SDK product 320–321 count message 75–76, 79 Counter class 295 CountOfPeople variable 295 createBlock function 261 CreateMessageForPerson method 184–185 createSampleData method 238–239 cross-platform play 325 CSS (Cascading Style Sheets) 315 CSS3 316–317 C-style array 75 CTFixedLease class 141–143 CTFixedTermLease 140 CTFontCreateWithName() method 176 CTLease class 139–140 CTPeriodicLease object 140–142 CTPeriodicLease subclass 140–141 CTPerson objects 215 CTRentalProperty class 164–166, 173–174, 217–219 header files for 105–106 method files for 108–109 curly braces, in block literal 259 custom subclasses 231 D Data Model Inspector 235–236 Data Modeling tool 235 data models 235, 251–253 data source 145 data types 28–54 additional 34–35 basic 32–40 Boolean truths 39–40 integral numbers 32–35 char 37–38 custom 44–52 arrays 48–50
332 INDEX data types (continued) descriptive names for 50–52 enumerations 44–46 structures 46–48 displaying and converting values 40–44 NSLog function and format specifiers 40–42 type casts and type conversions 43–44 id 58–59 Rental Manager application 29–32 completing 52–54 developing 29–32 database table 234 data-driven applications, Rental Manager 91–94 DBController classes 230 Deactivate Breakpoints option 25 dealloc message 180, 284 dealloc methods 14, 93, 119–120, 234, 242 DEBUG preprocessor symbol 280 Debugger Console window 31 debuggers, controlling 25–27 debugging 276–287 controlling memory leaks with Instruments application 281–283 creating application with bugs 277 detecting zombie objects 284–287 NSLog function 278–281 DebugSample application 278, 285 DebugSample_Prefix.pch file 279 declarations, method 101–105 declared properties 109–115 @property syntax 109–112 method naming 111 setter method semantics 111 thread safety 111–112 writeability 111 dot syntax 113–115 synthesizing property getter and setter methods 112–113 Declared Properties feature 109 decreaseRentalByPercent: withMinimum method 103–104 default priority queue 272 delegate parameter 146, 158 delegation 166 dequeueReusableCellWithIdentifier method 152–153 dereferencing operation 60 description method 132–134, 136 desktop-sized screens 318 destinations, selecting 22–23 details variable 71 deterministic behavior 180 Developer folder 8–9 Developer/Applications folder 8 developers, Apple 288 development tools 4–5 development, preparing iOS devices for 289–292 Devices section 291 Devices tab 291 devices, iOS preparing for development 289, 292 running applications on 292 dictionaries 82–88 accessing entries in 84–85 adding key/value pairs 85–86 constructing 82–84 enumerating all keys and values 86–88 dictionaryWithContentsOfURL: message 83 dictionaryWithObjects: forKeys method 83 dictionaryWithObjectsAndKeys: message 83 dictionaryWithValuesForKeys: method 214 didFinishLaunchingWithOptions: method 238– 239, 242 didPresentActionSheet: method 157 didReceiveMemoryWarning message 193–196 didReceiveMemoryWarning method 194–197 didSelectRowAtIndexPath: method 249, 285–286 dispatch_async function 267, 272 dispatch_get_global_queue function 267 dispatch_queue_create function 267 distinctUnionOfObjects aggregate function 217 Distribution tab 292 do loop 308, 311 do while statement 280 Document Type Definition. See DTD doesNotRecognizeSelector 169 DoomEd coding 314 dot syntax 113–115 double data type 35–36 do-while loop 307 Download button 292 DTD (Document Type Definition) 158 DTrace 8 dumpDataToConsole method 239, 242 dynamic binding 166 dynamic typing 163–176 dynamic binding 166 messaging 166–171 handling unknown selectors 169–170 methods, selectors, and implementations 167–168 sending message to nil 170–171 runtime type information 171–174 adding new methods to class at runtime 173–174 determining if message will respond 171 practical uses of 174–176 sending messages generated at runtime 171–172 static typing vs. 164–165
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Christopher K. Fairbairn Johannes F
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Objective-C Fundamentals CHRISTOPHE
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PART 1 brief contents GETTING START
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viii CONTENTS 1.5 Compiling the Coi
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x CONTENTS 5.4 Declared properties
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xii CONTENTS PART 3 MAKING MAXIMUM
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preface Having been involved in the
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ACKNOWLEDGMENTS xvii Christopher wo
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ABOUT THIS BOOK xix skills. There
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author online Purchase of Objective
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Part 1 Getting started with Objecti
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4 CHAPTER 1 Building your first iOS
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10 CHAPTER 1 Building your first iO
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Data types, variables, and constant
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30 CHAPTER 2 Data types, variables,
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56 CHAPTER 3 An introduction to obj
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Storing data in collections This ch
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76 CHAPTER 4 Storing data in collec
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Creating classes This chapter cover
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Declaring the interface of a class
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Providing an implementation for a c
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Declared properties 109 - (Property
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Declared properties 111 Let’s bri
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Declared properties 113 Although @s
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Creating and destroying objects 115
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Using the class in the Rental Manag
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Summary 123 a number of rental prop
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Subclassing 125 the only class you
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Adding new instance variables 127 s
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Accessing existing instance variabl
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Overriding methods 131 } return gen
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Overriding methods 133 } "for $%@ p
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Class clusters 135 Figure 6.2 Graph
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Categories 137 This code tells the
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Subclassing in your demo applicatio
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Subclassing in your demo applicatio
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Summary 143 6.8 Summary Object-orie
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Defining a protocol 145 Mastering t
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Implementing a protocol 147 7.2.1 C
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Implementing a protocol 149 Listing
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Important protocols 151 iPhone UIKi
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Important protocols 153 executed. T
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Important protocols 155 Any table v
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Important protocols 157 or in table
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Important protocols 159 For s
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Important protocols 161 Listing 7.1
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Dynamic typing and runtime type inf
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Static vs. dynamic typing 165 If yo
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How messaging works 167 Messages ar
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How messaging works 169 8.3.2 Handl
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Runtime type information 171 The if
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Runtime type information 173 8.4.3
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Practical uses of runtime type intr
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Memory management This chapter cove
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Reference counting 179 Figure 9.1 A
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Reference counting 181 the object i
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Reference counting 183 Keep yoursel
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Autorelease pools 185 Ideally, you
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Autorelease pools 187 With knowledg
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Autorelease pools 189 i * 1000 + j]
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Memory zones 191 Memory zones have
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Responding to low-memory warnings 1
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Summary 199 addObserver:selector:na
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Part 3 Making maximum use of framew
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Error and exception handling This c
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NSError—handling errors the Cocoa
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Creating NSError objects 207 chapte
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Creating NSError objects 209 10.2.2
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Summary 211 10.3.2 Catching excepti
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Making your objects KVC-compliant 2
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Making your objects KVC-compliant 2
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Handling special cases 217 This que
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Filtering and matching with predica
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Sample application 225 rentingFor:2
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Summary 227 The core of the logic o
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Core Data history 229 Structured Qu
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Core Data objects 231 In Xcode you
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Core Data resources 233 careful to
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Building the PocketTasks applicatio
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Beyond the basics 251 How do you us
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Beyond the basics 253 All you do is
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Beyond the basics 255 attributeName
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Blocks and Grand Central Dispatch T
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The syntax of blocks 259 What if yo
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The syntax of blocks 261 change the
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The syntax of blocks 263 } [super d
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Performing work asynchronously 265
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Summary 275 more to learn about GCD
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Building an application, complete w
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Understanding NSLog 279 Figure 14.3
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Page 316 and 317: appendix B The basics of C Througho
Page 318 and 319: Variable naming conventions 295 As
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Page 334 and 335: Summary 311 CONTINUE The continue s
Page 336 and 337: A short history of Objective-C 313
Page 338 and 339: The iPhone SDK: Safari 315 C.2 Alte
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Page 344 and 345: Scripting languages: Lua and Ruby 3
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Page 350 and 351: index Symbols ^ operator 298 - oper
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Page 356 and 357: INDEX 333 E e character 35 editButt
Page 358 and 359: INDEX 335 iOS Developer account 9 i
Page 360 and 361: INDEX 337 mutableCopyWithZone 190 M
Page 362 and 363: INDEX 339 Organizer window 291 over
Page 364 and 365: INDEX 341 setFlag 164 setNilValueFo
Page 366: INDEX 343 vardic method 75 variable
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Objective-C Fundamentals

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