Wiley
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Professional iPhone and iPad Database Application Programming

ISBN: 978-0-470-63617-6
408 pages
October 2010
Professional iPhone and iPad Database Application Programming (0470636173) cover image
A much-needed resource on database development and enterprise integration for the iPhone

An enormous demand exists for getting iPhone applications into the enterprise and this book guides you through all the necessary steps for integrating an iPhone app within an existing enterprise. Experienced iPhone developers will learn how to take advantage of the built-in capabilities of the iPhone to confidently implement a data-driven application for the iPhone.

Coverage includes:

  • Introducing Data-Driven Applications
  • The iPhone and iPad Database: Sqlite
  • Displaying Your Data: The UITableView
  • ipad Interface Elements
  • Introducing Core Data
  • Modeling Data in Xcode
  • Building a Core Data Application
  • Core Data-Related Cocoa Features
  • Core Data Migration and Performance
  • Working with Xml on the iPhone
  • Integrating with Web Services

Professional iPhone and iPad Database Application Programming gets you up to speed on developing data-driven applications for the iPhone.

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INTRODUCTION xxiii

PART I: MANIPULATING AND DISPLAYING DATA ON THE IPHONE AND IPAD

CHAPTER 1: INTRODUCING DATA-DRIVEN APPLICATIONS 3

Building a Simple Data-Driven Application 3

Creating the Project 4

Adding a UITableView 6

Model-View-Controller Architecture 6

Adding the TableView Programmatically 7

Retrieving Data 8

Implementing Your Data Model Class 9

Displaying the Data 12

Protocols 12

Implementing the UITableViewDataSource Protocol 13

Delegates 15

Finishing Up 15

Further Exploration 17

Design Patterns 17

Reading a Text File 18

Moving Forward 18

CHAPTER 2: THE IPHONE AND IPAD DATABASE: SQLITE 19

What Is SQLite? 20

The SQLite Library 20

SQLite and Core Data 20

Building a Simple Database 21

Designing the Database 22

Creating the Database 24

Populating the Database 26

Creating Records with the INSERT Command 26

Reading Your Rows with the SELECT Command 28

Tools to Visualize the SQLite Database 31

Connecting to Your Database 33

Starting the Project 34

The UINavigationController 34

The UITableViewController 35

The Model Class 36

The DBAccess Class 37

Parameterized Queries 47

Writing to the Database 49

Displaying the Catalog 50

Viewing Product Details 52

Moving Forward 55

CHAPTER 3: DISPLAYING YOUR DATA: THE UITABLEVIEW 57

Customizing the TableView 57

TableViewCell Styles 58

Adding Subviews to the contentView 61

Subclassing UITableViewCell 65

Getting Started 66

Implementing drawRect: 69

Finishing Up 71

Implementing Sections and an Index 72

Implementing Search 78

Optimizing TableView Performance 85

Reusing Existing Cells 85

Opaque Subviews 86

Custom Drawn Cells with drawRect 88

UI Conventions for Accessory Views 88

Moving Forward 88

CHAPTER 4: IPAD INTERFACE ELEMENTS 89

Displaying Master/Detail Data with the UISplitViewController 89

Introducing the UISplitViewController 90

The UISplitViewControllerDelegate Protocol 92

Starting the Split View Sample Application 93

Building the Detail Interface 95

Implementing Save and Master/Detail View 97

Setting Up the DetailViewController 97

Changes to the RootViewController 99

Modify the TableView Methods 100

Adding Surveys 101

Displaying Data in a Popover 103

Building the InfoViewController 104

Displaying the UIPopoverController 107

Gesture Recognizers 110

The UIGestureRecognizer Class 110

Using Gesture Recognizers 111

File Sharing Support 115

Enable File Sharing in the Sample Application 115

Serializing the Survey Data Array 115

Deserializing and Loading the Survey Data Array 117

Sharing the Data 118

Moving Forward 119

PART II: MANAGING YOUR DATA WITH CORE DATA

CHAPTER 5: INTRODUCING CORE DATA 123


The Basics of Core Data 124

The Core Data Architecture 124

The Core Data Stack 124

The Data Store 125

The Persistent Store Coordinator 125

The Managed Object Model 126

The Managed Object Context 126

SQLite and Core Data 127

Using Core Data: A Simple Task Manager 127

Creating the Project 127

Examining the Template Code 128

TasksAppDelegate 128

The Data Model 131

RootViewController 132

Modifying the Template Code 137

Moving Forward 143

CHAPTER 6: MODELING DATA IN XCODE 145

Modeling Your Data 145

Defi ning Entities and Their Attributes 146

Entity Details 147

Adding Attributes 149

Adding Relationships Between Entities 150

Creating Fetched Properties and Fetch Request Templates 153

Fetched Properties 153

Fetch Request Templates 155

Creating Custom NSManagedObject Subclasses 155

Implementing Validation Rules 158

Implementing Default Values 159

Creating the Tasks Model 159

Moving Forward 161

CHAPTER 7: BUILDING A CORE DATA APPLICATION 163

The Tasks Application Architecture 163

The Data Model 164

The Class Model 164

The User Interface 165

Coding the Application 167

RootViewController and the Basic UI 167

Generating the Managed Object Subclasses 171

Adding and Viewing Tasks 172

Building the ViewTaskController 173

Changes to the RootViewController 178

Building the Editing Controllers 180

Editing Text with the EditTextController 181

Setting Priorities with the EditPriorityController 185

Adding and Editing Locations with the EditLocationController 189

Modifying Dates with the EditDateController 195

Finishing Up the Editing Controllers 199

Displaying Results in the RootViewController 203

Sorting Results with NSSortDescriptor 203

Filtering Results with NSPredicate 204

Generating Grouped Tables Using the NSFetchedResultsController 205

Implementing Custom Managed Objects 211

Coding a Dynamic Property 211

Defaulting Data at Runtime 212

Validating a Single Field 213

Multi-Field Validation 215

Moving Forward 217

CHAPTER 8: CORE DATA–RELATED COCOA FEATURES 219

Key-Value Coding 220

Keys and Keypaths 220

Setting Values Using Keys 221

Collection Operators 221

Additional Considerations When Using KVC 222

Key-Value Observing 222

Observing Changes to an Object 223

Automatic and Manual Implementations of KVO 224

Key-Value Observing Example 224

Building the User Interface 225

The Counter Data Object 226

Implementing Key-Value Observing 227

Updating Values with Key-Value Coding 229

Using NSPredicate 231

Creating Predicates 231

Using Predicates 232

Sort Descriptors 233

Moving Forward 234

CHAPTER 9: CORE DATA MIGRATION AND PERFORMANCE 235

Model Versioning and Schema Migration 235

Model Versioning 237

Lightweight Migration 239

Generating a Mapping Model 242

Safely Threading with Core Data 246

Designing for Threading 246

Threading and Core Data 247

Threading with NSOperation 248

Core Data Threading Example 249

Blocking the Main Thread 251

Moving the Blocking Call 252

Core Data Performance 257

Faulting 258

Data Store Types 259

Storing Binary Data 259

Entity Inheritance 260

Runtime Performance 260

Managing Changes with the Fetched Results Controller 261

Performance Analysis Using Instruments 264

Starting Instruments 264

The Instruments Interface 266

The Core Data Instruments 267

Moving Forward 268

PART III: APPLICATION INTEGRATION USING WEB SERVICES

CHAPTER 10: WORKING WITH XML ON THE IPHONE 271

iPhone SDK and the Web 271

Web Application Architecture 272

Synchronous Data Retrieval 273

The URL Loading System 273

Web Access Sample 275

Starting the Application 275

Building the Interface 276

Requesting Data from the Server 277

Creating the Request 277

NSURLConnection Delegate Methods 278

Finishing Up 282

XML and the iPhone SDK 282

Brief Overview of XML 282

Parsing XML with NSXML Parser 283

Extending the Example, Parsing the XML 285

Starting Out 285

Setting Up to Parse 286

Modifying the Interface 288

Implementing the Parser Delegate Methods 288

Generating XML with libxml 291

XML Generation Sample 292

Moving Forward 300

CHAPTER 11: INTEGRATING WITH WEB SERVICES 301

Network Application Architecture 301

Two-Tier Architecture 302

Three-Tier Architecture (n-tier) 303

Application Communication 304

Introducing Web Services 304

SOAP Messaging 306

The REST Protocol 307

Example 1: Location-Based Search 308

Starting Out 308

Building the Interface 310

Core Location 310

The Core Location Framework 311

Using Core Location 312

The Local Search API 313

Using the Search Bar 315

Handling the Web Service Response 318

The NSURLConnection Delegate Methods 318

Defi ning the Result Class 320

Parsing the Response XML 322

Using MapKit 327

Finishing Up 331

Example 2: Term Extraction 332

Getting Started 332

Building the User Interface 334

Implementing the POST Call 335

Receiving the XML Response 338

Parsing the Response XML 340

Finishing Up 342

Moving Forward 342

APPENDIX A: TOOLS FOR TROUBLESHOOTING YOUR APPLICATIONS 343

Instruments 343

Starting Instruments 344

The Trace Document 345

Objective-C Memory Management 346

Sample Memory Leak Application 348

Analyzing a Memory Leak in Instruments 349

The Static Analyzer 351

INDEX 355

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Patrick Alessi creates data-centric applications for clients ranging from small businesses to the United States Air Force. He created one of the top paid applications in the business category for the iPhone called MotivationalQuotes, as well as the popular CNotes. Currently, he is focused on the promise of mobility and connected applications for mobile devices.
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Chapter 2 :: Code Download 34.86 KB Click to Download
Chapter 3 :: Code Download 2.30 MB Click to Download
Chapter 4 :: Code Download 35.72 KB Click to Download
Chapter 5 :: Code Download 64.25 KB Click to Download
Chapter 6 :: Code Download 85.85 KB Click to Download
Chapter 7 :: Code Download 119.83 KB Click to Download
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Chapter 9 :: Code Download 192.46 KB Click to Download
Chapter 10 :: Code Download 45.00 KB Click to Download
Chapter 11 :: Code Download 56.79 KB Click to Download
Appendix A :: Code Download 20.66 KB Click to Download
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