Index

Numbers

3D (three dimensional) transforms

adding perspective, 211–212

in CALayer, 201

Core Animation, 209–210

3G (three-G) data connection, 62

A

ACAccountCredential

defined, 118

migrating accounts into Accounts, 124

ACAccounts

accessing, 121

defined, 118

ACAccountStore

defined, 118–120

maintaining separation, 127

populating with available accounts, 121

ACAccountStoreDidChangeNotification, 126, 138

ACAccountType

accessing accounts, 121–122

defined, 119

ACAccountTypeIdentifierTwitter, 118–119

access tokens

in Accounts framework, 121–122

migrating into Accounts, 122–124

OAuth services, 115–116

accessGranted, 121

Accounts

accessing accounts in, 121–122

defined, 18

getting started, 114–117

migrating users from existing apps into, 122–124

new apps and, 118–120

overview, 113

special considerations, 125–127

using, 118

accountsd process, 121

accountsDidChange:, 126

accuracy

constants, 85–86

for region monitoring, 100

addArcWithCenter, 156–157

addCurveToPoint, 156

adding

iCloud entitlements, 58–60

new objects in Core Data, 41–42

new persistent stores, 38

addLineToPoint, 156–157

address dictionaries, 106

airplane mode and geocoding, 103

alpha, 195

Ambient mode

AVAudioPlayer, 239

AVAudioSession, 234

analyzing images

with CIDetector, 168

with Core Image, 182–184

overview, 166

Angry Birds, 225

animateWithDuration:animations:, 200

animation. see Core Animation

animation blocks, 199–200

animation contexts, 197–198

animationDidStop, 197

animationWithKeyPath, 209

Aperture, 164

APNS (Apple Push Notification Service)

missed notifications, 296–297

overview, 291–298

App ID, 57–58

App Store, 275–276

appearance of Newsstand app, 290

Apple

audio session documentation, 237

Core Animation, 194

Core Image, 164

document storage, 78

Mac OS X. see Mac OS X

multicore processor, 11

Twitter and Accounts, 113

video streaming guidelines, 257

Apple Push Notification Service (APNS)

missed notifications, 296–297

overview, 291–298

Application Music Player, 229–230

Application presents content in Newsstand, 280

applicationDidLaunch, 293

applyingFilter, 190

apps

Accounts and new, 118–120

challenges of audio, 224

document storage, 76–77

iCloud storage between platforms, 61

iCloud use case, 55

migrating users from existing into Accounts, 122–124

Newsstand. see Newsstand Kit

Top Ten Technologies of iOS 5, 18–19

Twitter. see Twitter

understanding Newsstand, 282–283

using iOS frameworks, 6–7

using multicore processors, 11

why use Core Graphics?, 148

ARC (Automatic Reference Counting), 6

architecture of Core Data, 25

arcWithCenter, 156–157

assets

Assets Library, 247

defined, 244

downloading, 284–290

ATOM feed, 281

attributes. see also properties

defined, 26

filter, 173–176

attributes dictionary

for complex filters, 176

key-value coding and, 168

for Sepia-tone filter, 175

audio. see Core Audio

audio capture. see capturing media

audio sessions, 233–237

Audio Toolbox, 226

Audio Unit, 226

audioPlayerBeginInterruption:, 240

audioPlayerdecodeErrordidOccur:error:, 240

audioPlayerdidFinishPlaying:successfully:, 240

audioPlayerEndInterruption:, 240

AudioSessionGetProperty(), 236

authentication

in Accounts workflow, 116–117

migrating into Accounts, 122–124

performing TWRequest, 134–135

understanding OAuth services, 115–116

authorization status, 88–90

author’s note, 299

auto adjustment filters, 183

automatic filter enhancement, 166

Automatic Reference Counting (ARC), 6

AV Foundation

Audio Session, 233–237

AVCaptureSession, 262

AVCaptureVideoPreviewLayer, 262–263

custom image capture, 263–269

defined, 19

getting started, 244–247

in-camera effects and video, 269–270

linking to project, 226

MPMoviePlayerController, 256–261

multimedia frameworks, 222–223

out-of-the-box solutions, 248

overview, 243

UIImagePickerController, 248–255

availability

checking iCloud, 71, 78

checking Twitter, 131

determining location service, 88–90

filter, 173–174

Newsstand content, 293

AVAsset, 244

AVAudioPlayer, 232, 237–240

AVAudioSession, 233–237

AVCaptureConnection, 267–269

AVCaptureOutputs, 269–270

AVCaptureSession, 262–267

AVCaptureVideoPreviewLayer, 262–263, 265–266

AVPlayerLayer, 244

B

background processes

AVAudioPlayer, 237–239

AVAudioSession, 233–235, 237

Newsstand app, 291

Newsstand app properties, 280

Newsstand apps waking up, 296–297

rendering and filtering images, 184–186

standard location services as, 93

using expiration handler, 295–296

backgroundColor

custom animation, 204–205

keyframe animation, 206–207

UIKit animation, 195

beginAnimation, 197–198

beginGeneratingPlaybackNotification, 231

beginInterruption, 236

blocks

in multicore processor, 14–16

running filters in background thread, 184–186

UIKit animations with, 199–200

using in iOS frameworks, 16–17

bounds, 195

built-in filters, 173–174

bundle ID

defined, 54

enabling iCloud, 57–58

using wildcards in, 57

C

CAAnimation

customization, 204–205

defined, 203

CABasicAnimation, 203

Caches folder

defined, 284

downloading Newsstand content to, 285–286

moving downloaded files to, 289

CAEmitterCells, 213–217

CAEmitterLayer, 215–217

CAKeyframeAnimation

along paths, 208

color change animation, 206–207

defined, 203

CALayer

AVPlayerLayer and, 244

defined, 201–202

Calendar, 148

cameras

adding to AVCaptureSession, 264–267

capture mode, 255

creating recorder with UIImagePickerController, 251–254

filters. see filters

images. see images

in-camera effects and video, 269–270

UIImagePickerController source types, 250

canSendTweet, 131

captureMode, 255

captureStillImageAsynchronouslyFromConnection:, 267–269

capturing media

AVCaptureSession, 262

AVCaptureVideoPreviewLayer, 262–263

custom, 263–269

in-camera effects and video, 269–270

using UIImagePickerController, 250–254

CATransform3D, 211–212

CATransitionAnimation, 203

cell emitters, 215–217

cell towers

location information, 84

significant location change monitoring, 94

center, 195

CFBundleIcons, 280

CGImageRef

CIImage and, 170–172

rendering images, 181

rendering in background thread, 185–186

CGPDFGraphicsContext, 147

change monitoring, 94–95

change notifications

Core Data persistent store, 74–75

iCloud, 53

observing account database, 126

responding to iCloud, 67–70

syncing, 70

CIContext

defined, 168–169

rendering images, 178–181

rendering in background thread, 185–186

CIDetector

defined, 168–169

image analysis, 183–184

CIFaceFeature, 168

CIFeature, 168

CIFilter, 168–169

CIImage

defined, 168–169

UIImage and, 170–172

CIVector, 169

classes

defined, 8

generating managed object, 27

CLLocationManager

heading monitoring, 96–98

overview, 91

region monitoring, 98–100

responding to new information for, 100–101

significant location change monitoring, 94–95

standard location service, 91–93

CLLocationManagerauthorizationStatus, 88–90

CLLocationManagerlocationServicesEnabled, 88–90

CLPlacemarks

forward geocoding, 104–105

reverse geocoding, 106–107

CMMotionManager, 16–17

Cocoa Touch, 5

coding. see Xcode

coding, key-value. see key-value coding

colors

animating particle emitters, 215–216

custom animation, 204–205

keyframe animation, 206–207

UIKit animation, 195

commitAnimation, 197–198

compass, 96

completion block handlers

capturing still image with, 269

executing code on main thread from, 125–126

GCD, 119–120, 125

handling TWRequest response, 136–137

tweet compose view controller, 131

complex filters, 176

concurrency

in Core Data, 33

in GCD, 13

in multicore processor, 11–12

when creating managed object context, 39

condition change notification, 69

connectionDidFinishDownload

handling finished downloads, 287–289

updating app appearance, 290

connectionDidFinishLoading, 134

connections

AVCaptureConnection, 267–269

geocoding requirements, 103

content

downloading Newsstand app, 284–290

loading into MPMoviePlayerController, 257–261

Newsstand updated notifications, 293

responding to remote notifications, 295–296

contentStretch, 195

context, animation, 197–198

context, Core Image, 178–181

context, graphics. see graphics context

context, managed object. see managed object context

control events, 47

coordinate system of Core Graphics, 145–146

Core Animation

3D transforms, 209–210

adding perspective, 211–212

animating along paths, 207–208

custom effects, 201–205

defined, 19

getting started, 194–196

keyframe animations, 206–207

overview, 193

particle emitters, 213–217

using UIKit, 197–200

Core Audio

AVAudioPlayer, 237–240

AVAudioSession, 233–237

defined, 19

getting started, 224–226

multimedia frameworks, 222–223

overview, 221

using audio from other sources, 232

using iPod Music Library, 227–231

Core Data

adding new objects, 41–42

concurrency in, 33

defined, 18, 24–25

deleting objects, 44–45

fetching and modifying objects, 42–44

getting started, 24

managed object context, 30–32

managed object model, 26–27

overview, 23

persistent store and store file, 28–30

persistent store coordinator, 28

setting up in Xcode, 34–40

stack, 25

syncing entitlements, 58–59

syncing with iCloud, 69–75

undo, redo, rollback and reset, 45–48

Core Data Model Editor

creating managed object model, 35–36

defined, 26

Core Graphics

defined, 18

getting started, 142–148

linking to AV Foundation project, 247

overview, 141

paths, gradients, text, and images, 154–160

understanding, 149–154

Core Image

analyzing images, 182–184

Core Image context, 178–181

defined, 19

don’t block main thread, 184–186

editor, 187–190

filters, 173–178

getting started, 164–167

linking to AV Foundation project, 247

overview, 163

still images and video frames, 170–172

understanding, 168–169

Core Image context, 178–181

Core Location

defined, 18

forwarding and reverse geocoding, 102–107

getting started, 82–90

manager. see CLLocationManager

overview, 81

working with Map Kit, 108–109

Core Media, 247

Core OS, 5

Core Services

Core Location. see Core Location

defined, 5

GCD in, 14

cover updating, 290

CPU rendering, 178–179

customization

animation, 204–205

animation effects, 201–205

camera overlay, 251–254

with Core Graphics, 148

UIView, 149–151

CVPixelBuffer, 171

D

data management. see Core Data

default iCloud settings, 54

defaultStore, 64

delegate methods

animation contexts, 197

AVAudioPlayer, 240

AVAudioSession, 233–234

capturing video, 269–270

CLLocationManager, 100–101

downloading content, 285–287

handling audio interruptions, 236

Map Kit, 109

media picker controller, 227–229

NSURLConnectionDownloadDelegate, 287–289

reconnecting abandoned asset downloads, 297–298

registering for Newsstand update notifications, 293

deleting objects, 44–45

detecting audio sessions, 235–236

detecting faces. see face detection

device orientation, 268

dictionaries, address, 106

dictionaries, attribute. see attributes dictionary

didEnterRegion, 98

didExitRegion, 98

didReceiveRemoteNotification, 294, 295

dispatch queues vs. operation queues, 13–14

document apps, 55

document storage

iCloud, 76–77

iCloud entitlements, 58–59

downloading Newsstand content

overview, 284–290

reconnecting abandoned, 297–298

downloadIssueWithInfo, 296

downloadWithDelegate, 285–287

drawing in Core Graphics, 155–160

drawRect:

Core Graphics image, 160

customizing UIView, 149–150

nesting save and restore calls, 152

overriding, 147

E

EAGLContext, 180

EaseIn, 208

EaseInEaseOut, 208

EaseOut, 208

editing images. see Core Image

effects

cell emitter, 213–217

filter. see filters

Flipboard page-turn, 211–212

in-camera effects and video, 269–270

Elliott, Bryan, 164

emitterCells, 213–215

emitterMode, 213

emitterPosition, 213–214

emitterShape, 213

enabling iCloud

in provisioning portal, 57–58

quick starting, 54

before you begin, 56–57

enabling Newsstand app, 281

endInterruptionWithFlags:, 236

entities

creating managed object model, 36

defined, 26

managed object context, 30–32

entitlements

adding required to iCloud, 58–60

determining availability of iCloud, 71

exception, unknown key, 177

expiration handler, 295–296

explicit animations, 202

F

face detection

with CIDetector, 168

defined, 166

image analysis, 182–184

favorite tracking, 65–67

featuresInImage:options:, 182–183

fetched properties

creating managed object model, 36

defined, 27

fetching objects

in Core Data, 42–44

managed object context, 32

file coordinator object, 76

filters

AV Foundation, 270

CIFilter object, 168–169

in CIImage, 172

Core Image, 173–178

Core Image editor, 187–190

image analysis, 182–184

overview of Core Image, 164

running in background thread, 184–186

filtersInCategory:, 187

filtersnamesinCategory:, 174

filterWithName:, 173–174

fireworks effect, 213–217

flash simulation, 267

flip animation, 209–210

Flipboard page-turn effect, 211–212

fonts, 159

forKey, 204–205

format of APNS, 294

forward geocoding, 102–106

Foundation

AV. see AV Foundation

iOS crash course, 8

iOS prerequisites, 4

objects, 136

frame, 195

frameworks, 8

G

Garage Band, 148

GCD (Grand Central Dispatch)

completion block handlers, 120

concurrency in Core Data, 33

defined, 13–14

running filters in background thread, 184–186

UIKit animations with blocks, 199–200

geocodeAddressDictionary, 106

geocoding, 102–107

GET method, 133

goals for book, 6–7

Google Maps, 96

Google Services, 82

gotchas

Core Image editor, 187–190

Newsstand app, 296–298

GPS, 84–85

GPU rendering

vs. CPU rendering, 178–179

image, 181

gradients, 158–159

Grand Central Dispatch (GCD). see GCD (Grand Central Dispatch)

graphics. see Core Graphics

graphics context

defined, 147

properties, 150–151

stack, 151–154

H

handler block, 16–17

hardware requirements

AVCaptureSession, 266

camera device capability, 254

for location-based apps, 84–85

HD (high-definition) recording, 266

heading monitoring

with CLLocationManager, 96–98

delegate methods, 101

high-definition (HD) recording, 266

HTTP Live Streaming, 257, 261

I

iCloud

adding required entitlements, 58–60

before you begin, 56

defined, 18

document storage, 76–77

enabling in iOS Provisioning Portal, 57–58

getting started, 52

how it works, 53–55

key-value storage, 63–69

overview, 51

special considerations, 61–62

storage containers, 60–61

syncing Core Data, 69–75

use case, 55

iCloud Container Identifier, 71

iCloud Daemon, 67

Icon Files, 280

icons, Newsstand app

aspect ratio, 276

styles, 280

updating appearance, 290

identifiers

account, 121

maintaining account store separation, 127

team prefix. see team prefix identifiers

ubiquity container, 54, 71

image picker controller, 248–255

images

in AV Foundation. see AV Foundation

in Core Graphics, 160

in Core Image. see Core Image

custom capture, 263–269

still images and video frames, 170–172

uploading with tweet compose view controller, 130

implicit animations, 202

importing

Accounts and Twitter to project, 114

audio frameworks, 226

Core Graphics, 143

Core Image, 167

Core Location and Map Kit, 83

framework into header files, 10

Newsstand Kit, 278

Quartz Core, 196

in-camera effects, 269–270

info property list, 279–280

inputImage, 175

inputIntensity, 175–177

instance variables

preventing filter lag, 188–190

setting CIContext as, 180, 186

interruptions, handling audio, 236, 240

iOS frameworks

crash course, 8–10

enabling iCloud in Provisioning Portal, 57–58

goals for book, 6–7

overview, 3

prerequisites, 4–6

top ten technologies, 18–19

understanding impact of multicore processor, 11–17

iOS Provisioning Portal, 54, 57–58

iPad

multicore processor, 11

resolution, 145

iPhone

multicore processor, 11

resolution, 145

iPod Music Library, 227–231

iPod Music Player, 229–230

issues, Newsstand Kit

defined, 282–283

downloading content, 285–286

handling finished download and progress, 288–289

issueWithName, 44–45

iTunes Connect, 281

iWork applications, 55

J

Java, 12

Jobs, Steve, 51

K

Key Value Observing (KVO), 267, 269

keyframe animations

CAKeyframeAnimation, 203

Core Animation, 206–208

keys

location-based app, 85

Newsstand app, 279–280

key-value coding

attributes dictionary and, 177

custom animation, 205

defined, 168

format of APNS, 294

key-value storage

with iCloud, 63–69

iCloud entitlements, 58–59

iCloud use case, 55

quick starting iCloud, 54

responding to change notifications, 67–69

KVO (Key Value Observing), 267, 269

L

launch site, 213

launchOptions, 296–297

layers

graphics context, 151

iOS, 5

preview, 262–263

layers, Core Animation

3D transforms, 209–210

assigning animations to, 204–205

CAEmitterLayer, 215–217

CALayer, 201–202

LibDispatch, 178

libraries, photo

capturing still image, 267–269

selecting photos from, 249–250

library, Newsstand Kit, 282–283, 297–298

linear gradients, 158–159

Liner, 208

linking

Accounts and Twitter to project, 114

audio frameworks, 226

AV Foundation to project, 247

Core Data framework, 35

Core Graphics to project, 143

Core Image, 167

Core Location and Map Kit, 83

new frameworks in Xcode project, 9–10

Newsstand Kit to project, 278

Quartz Core to project, 196

Live Streaming, 257, 261

loading content into MPMoviePlayerController, 257–261

location manager. see CLLocationManager

location-services, 85

M

Mac OS X

Core Image, 163

enabling iCloud, 56

iCloud storage between platforms, 61

native frameworks in iOS, 4

main dispatch queue

creating managed object context, 39

in GCD, 13–14

managed object context

in Core Data, 30–32

creating new, 39–40

deleting objects in, 44–45

fetching and modifying objects, 42–44

tips and tricks, 48

undo, redo, rollback and reset, 47

managed object model

Core Data, 26–27

creating in Xcode, 35–36

Map Kit

Core Location and, 91

forward and reverse geocoding, 102

working with, 108–109

maximum duration of video, 255

Media

AV Foundation, 243

Core Animation, 193

Core Audio, 221

Core Graphics, 141

Core Image, 163

defined, 5

media capture. see capturing media

media picker controller, 227–229

Media Player

linking to project, 226, 247

MPMediaPickerController, 227–229

MPMoviePlayerController, 245, 256–261

MPMoviePlayerViewController, 261

MPMusicPlayerController, 229–230

multimedia frameworks, 222–223

mediaLibraryButtonPressed:, 227–229

mergeChangesFromContextDidSaveNotification:, 70

message composition, 130

methods

Core Graphics image, 160

creating CIContext, 179–180

for creating CIImage, 171

delegate. see delegate methods

text, 159

UIBezierPath, 156

migrating users in Accounts, 122–124

mirroring data with iCloud, 53, 55

MKMapView, 108–109

Mobile Core Services, 247

mobile platforms, 3

model layer of Core Animation, 202

Model-View-Controller (MVC) design paradigm, 24–25

modifying objects in Core Data, 42–44

monitoring

heading, 96–98

region, 98–100

significant location change, 94–95

motion manager, 16–17

moveToPoint, 156–157

movie player controller, 256–261

moviePlayer, 261

MPMediaPickerController, 227–229

MPMoviePlayerController, 245, 256–261

MPMoviePlayerViewController, 256–257, 261

MPMusicPlayerController, 229–230

multicore processors, 11–17

multimedia frameworks

AV Foundation, 242–246

Core Audio, 222–223

multithreading

in multicore processor, 12

UIKit animations with blocks, 199–200

Music Library, 227–231

music player controller, 229–230

MVC (Model-View-Controller) design paradigm, 24–25

N

naming

downloads, 288–289

Newsstand issues, 283

persistent stores, 72–73

newCover, 290

Newsstand Content Availability, 291–292

Newsstand Kit

defined, 19

downloading content, 284–290

getting started, 276–281

notifications, 291–296

overview, 275

special considerations, 296–298

understanding apps, 282–283

NKAssetDownload

defined, 282

downloading content, 285–287

handling finished download and progress, 287–289

reconnecting abandoned, 297–298

NKDontThrottleNewsstandContent Notifications, 293

NKIssue

defined, 282–283

downloading content, 285–286

handling finished download and progress, 288–289

NKLibrary

defined, 282–283

reconnecting abandoned asset downloads, 297–298

notifications

change. see change notifications

missed APNS, 296–297

music player, 230–231

Newsstand Kit, 291–296

Now Playing

challenges of mobile device audio, 223

using iPod Music Library, 227

NSBinaryStorageType, 30

NSConfinementConcurrencyType, 33

NSData, 171

NsInMemoryStoreType, 30

NSMainQueueConcurrencyType, 33

NSManagedObject

managed object context, 30

objectID, 40

NSNotificationCenter, 53

NSNumber, 69

NSObject, 5

NSPersistentStoreDidImportUbiquitous ContentChangesNotification, 74

NSPredicate, 43–44

NSPrivateQueueConcurrencyType, 33

NSSQLiteStoreType, 30

NSThread, 184

NSUbiquitousKeyValueStore

adding and removing objects, 65–67

quick starting, 54

using, 64

NSUbiquitousKeyValueStoreDidChange ExternallyNotification, 67–68

NSUndoManager, 45–47

NSUnknownKeyException, 177

NSURLConnection

creating CIImage with, 171

download delegate, 287–289

handling TWRequest response, 136–137

performing TWRequest, 134–135

NSUserDefaults

adding and removing objects, 65–67

key-value storage and, 63

O

OAuth services

in Accounts workflow, 116–117

migrating into Accounts, 122–124

Twitter API, 132

understanding, 115–116

objectForID

defined, 40

tips and tricks, 48

objectForKey:, 175

objectID

defined, 40

tips and tricks, 48

objects

adding new in Core Data, 41–42

CAAnimation, 203

CLLocation, 82

CLPlacemarks, 104–105

in Core Data, 25

Core Image, 168

creating TWRequest, 132–134

deleting in Core Data, 44–45

fetching and modifying in Core Data, 42–44

location, 91

in managed object model, 26–27

NKLibrary, 282–283

storing as keys, 63

UIBezierPath, 155–157

observers, 267

online materials

for Core Data, 49

iOS, 7

OpenAL, 226

OpenGL ES 2.0, 178

operation queues, 13–14

OS X

Core Image, 163

enabling iCloud, 56

iCloud storage between platforms, 61

native frameworks in iOS, 4

outputs of AVCaptureSession, 269–270

P

particle emitter animation, 213–217

paths

animating along, 207–208

in Core Graphics, 155–157

performance

CPU vs. GPU rendering, 178–179

GCD and, 14

of implicit vs. explicit animation, 202

location data source, 83–84

multicore processor, 11

storage types, 58

performBlock

change notifications, 74–75

managed object context, 33

performBlockAndWait

creating managed object context, 39

defined, 33

performRequestWithHandler

handling TWRequest response, 136–137

performing TWRequest, 134–135

performSelectorOnMainThread, 125–126

permissions

Accounts workflow, 117

location, 86–88

OAuth services, 115

persistent store coordinator

Core Data, 28

creating in Xcode, 37

persistent stores

adding new in Core Data, 38

store file and, 28–30

syncing with iCloud, 70–75

persistentStoreDidChange:, 74–75

perspective, 211–212

photo editing. see Core Image

photo library

capturing still image, 267–269

selecting photos from, 249–250

pixels

modifying with filters, 173–178

vs. points, 145–146

placemarks

forward geocoding, 104–105

reverse geocoding, 106–107

platforms, iCloud storage on, 61

Play and Record mode, 234

playback. see AV Foundation; Core Audio

playback, 240

Playback mode, 234

player layer, 244

points coordinate display, 145–146

polar coordinate system, 215

preferences, 62

prepareToPlay, 238–239

presentation layer of Core Animation, 202

preview layer

adding to AVCaptureSession, 265–266

AVCaptureVideoPreviewLayer, 262–263

properties

accessGranted, 121

account-type, 114

animating, 203

AVAudioSession, 237

CALayer, 201

CGImageRef, 170

creating managed object model, 36

custom animation, 204–205

graphics context, 150–151

key-value coding, 168

moviePlayer, 261

Newsstand app info list, 279–280

NKIssue, 283

objectID, 40

observers, 267

particle emitter, 213–217

showsUserLocation, 108

UIImagePickerController video, 255

UIKit animations, 197–198

UIView animatable, 195

userTrackingMode, 109

protocols, Foundation, 5

public timeline, 133

publications. see Newsstand Kit

push notifications, 291–298

Q

quality of video, 255

Quartz 2D, 144

Quartz Core

Core Animation, 193

Core Graphics and, 144

linking in Xcode project, 9–10

linking to AV Foundation project, 247

linking to project, 196

queues

managed object context, 48

operation vs. dispatch, 13–14

when creating managed object context, 39

R

radial gradients, 158–159

reason keys, 68–69

reconnecting abandoned asset downloads, 297–298

Record mode, 234

recording HD, 266

recording undo events, 47

rectangle parameter for image rendering, 181

redo, 45–48

region monitoring

CLLocationManager, 98–100

geocoding, 105

registerForRemoteNotificationTypes:, 293

registering for APNS

Newsstand update notifications, 293

overview, 292

registering iOS apps, 56

relationships

creating managed object model, 36

defined, 26

key-value coding, 168

remote notifications

iOS Simulator and, 292

missed notifications, 296–297

registering for Newsstand update notifications, 293

responding to, 295–296

removeObjectForKey:, 65–67

rendering images

CIImage object, 168

with Core Image context, 178–181

running in background thread, 184–186

requests

creating TWRequest, 132–134

handling TWRequest, 136–137

performing in Twitter, 134–135

Required background modes, 280

requirements

downloading content, 287–289

hardware. see hardware requirements

iCloud entitlements, 58–60

reset, 45–48

resolution, 145–146

response to TWRequest, 136–137

restoring graphics context, 152–154

retina display, 145–146

reverse geocoding, 102–103, 106–107

rocket animation, 213–217

rollback, 45–48

root classes, 5

rotationMode, 208

S

Saved Photos album, 250

saving

in Core Data, 48

graphics context, 152–154

SDK (Software Development Kit), 9

selecting photos from photo library, 249–250

Sepia-tone filter

gotcha, 188

overview, 174–177

serial queues, 13

sessions, audio, 233–237

setAnimationDidStopSelector, 206

setContentURL, 257

setNeedsDisplay, 150

setNewsstandIconImage, 290

setObject:forKey, 65–66

Settings app, 116–117

setValue:forKey:, 175, 177

shake events, 47

showPhotoLibrary, 249

showsUserLocation, 108, 110

significant location change monitoring

defined, 94–95

delegate methods, 101

sizing fonts, 159

sliders

Core Image editor, 187–188

working with filters and, 176

Software Development Kit (SDK), 9

Solo Ambient mode

AVAudioPlayer, 239

AVAudioSession, 234

sound. see Core Audio

soundURL, 239

source types for UIImagePickerController, 249–250

standard location service

defined, 91–93

delegate methods, 101

startMonitoringForRegion:desired Accuracy, 100

startMonitoringSignificantLocation Changes, 95

startUpdatingHeading, 96–97

startUpdatingLocation, 91–93

startVideoCapture, 255

state notifications, 230–231. see also notifications

still images. see also images

vs. video capture, 269–270

video frames and, 170–172

Stocks, 148

stopVideoCapture, 255

storage. see key-value storage

account, 118–120

containers, 60–61, 71

document, 76–77

issue, 284

persistent store and store file, 28–30

streaming video guidelines, 257

strings

attributes dictionary and, 177

forward geocoding, 104–105

key-value coding, 168

sublayer hierarchy of Core Animation, 201

synchronization

Core Data with iCloud, 69–75

with key-value storage, 64

responding to notifications, 68

setting up iCloud persistent store, 72–73

system accounts. see Accounts

T

team prefix identifiers

defined, 54

determining availability of iCloud, 71

enabling iCloud, 57–58

iCloud storage between platforms, 61

technologies in iOS 5, 18–19

terms of service, Map Kit, 82

testing iCloud, 78

text, 159

three dimensional (3D) transforms

adding perspective, 211–212

in CALayer, 201

Core Animation, 209–210

three-G (3G) data connection, 62

Tiny Wings, 225

tokens, access. see access tokens

Top Ten Technologies of iOS 5, 18–19

touch events, 47

tracking

favorites, 65–67

issues, 282–283

location, 108–109

transform, 195

transforms. see 3D (three dimensional) transforms

transition animation, 203

Twitter

Accounts. see Accounts

framework in iOS, 18

getting started, 115–116

interacting with API, 132–137

overview, 113

tweet compose view controller, 128–131

TWRequest

creating, 132–134

performing, 134–135

TWTweetComposeViewController, 128–131

U

ubiquitous key-value store. see key-value storage

ubiquity container

document storage and, 76–77

quick starting iCloud, 54

ubiquity container identifier

defined, 54

team prefix identifier and, 71, 78

UIBackgroundModes, 280

UIBezierPath, 155–157

UIEvent, 142

UIGraphicsGetCurrentContext(), 147

UIImage, 170–172

UIImagePickerController, 245, 248–255

UIImageView, 181

UIKit

Core Animation using, 197–200

Core Graphics and, 142

getting started with Core Animation, 194–195

iOS crash course, 8

iOS prerequisites, 4

linking to project, 247

UIImage and CIImage, 170

UIImagePickerController, 248–255

UINewsstandApp, 280

UIRemoteNotificationTypeNewsstand ContentAvailability, 293

UITweetComposeViewController, 128

UIView

animatable properties, 195

animation with UIKit, 197–200

custom camera overlay, 251–254

customization, 149–151

undo, 45–48

UNIX, 12

unknown authorization status, 90

updating

heading, 96–97

location, 91–93

Newsstand appearance, 290

notifications, 293

URLs

creating AVAudioPlayer, 238

creating CIImage, 171

creating TWRequest, 132–134

downloading issue content, 289

loading content into MPMoviePlayerController, 257

syncing persistent stores, 72–73

user accounts. see Accounts

user defaults

adding and removing objects, 65–67

key-value storage and, 63

users

events, 47

migrating into Accounts, 122–124

userTrackingMode, 109

V

values. see also properties

in CALayer, 201

complex filter, 175–176

in Core Data, 25

fetched properties and, 27

keyframe animation, 207

for location authorization, 90

obtaining image analysis, 182–183

perspective, 211–212

setting Sepia-tone filter, 177

userTrackingMode, 109

video

capture. see capturing media

in-camera effects and, 269–270

loading into MPMoviePlayerController, 257–261

still images and frames, 170–172

working with UIImagePickerController, 254–255

videoMaximumDuration, 255

videoQuality, 255

viewDidLoad

animation contexts, 197–198

creating MPMoviePlayerController, 260

Twitter availability, 131

views

CALayer, 201

custom camera overlay, 251–254

customizing UIView, 149–151

Map Kit, 108–109

MPMoviePlayerViewController, 256–257, 261

tweet compose view controller, 128–131

UIImagePickerController, 250

UIView. see UIView

W

Weather

3D transforms, 209

Core Graphics, 148

web services authorization, 115

whitelist, 284

Wi-Fi

geocoding access, 103

location information, 84

significant location change monitoring, 94

wildcards

in bundle ID, 57

iCloud storage between platforms, 61

workflows

Accounts, 116–117

image processing, 169

OAuth, 115

X

Xcode

ARC, 6

info property list, 279–280

iOS crash course, 8–10

linking Accounts and Twitter to project, 114

linking audio frameworks to project, 226

linking AV Foundation to project, 247

linking Core Graphics to project, 143

linking Core Image to project, 167

linking Newsstand Kit to project, 278

linking Quartz Core to project, 196

setting up Core Data in, 34–40

Z

Z value, 201