Introducing On Demand Resources

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1 App Frameworks #WWDC15 Introducing On Demand Resources An element of App Thinning Session 214 Steve Lewallen Frameworks Engineering Tony Parker Cocoa Frameworks 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple.

2 Agenda On Demand Resources (ODR)

3 Agenda On Demand Resources (ODR) Overview

4 Agenda On Demand Resources (ODR) Overview Features and Benefits

5 Agenda On Demand Resources (ODR) Overview Features and Benefits Details

6 Agenda On Demand Resources (ODR) Overview Features and Benefits Details Using On Demand Resources

7 Agenda On Demand Resources (ODR) Overview Features and Benefits Details Using On Demand Resources Best Practices

8 Overview The traditional application

9 Traditional Application App Store

10 Traditional Application App Store Executable Base Resources

11 Traditional Application App Store Executable Base Resources Game Level 1 Game Level 2 Game Level n'

12 Traditional Application App Store Executable Base Resources Game Level 1 Game Level 2 Game Level n'

13 Traditional Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 1 Game Level 2 Game Level 2 Game Level n' Game Level n'

14 Traditional Application Executable Base Resources Game Level 1 Game Level 2 Game Level n'

15 Traditional Application Executable Base Resources Game Level 1 Game Level 2 Game Level n'

16 Traditional Application Base Resources Game Level 1 Game Level 2 Game Level n'

17 Overview The On Demand Resources application

18 On Demand Resources Application Space-friendly packaging

19 On Demand Resources Application Space-friendly packaging Executable Base Resources Game Level 1 Game Level 2 Game Level n'

20 On Demand Resources Application Space-friendly packaging App Store Executable Base Resources Game Level 1 Game Level 2 Game Level n'

21 On Demand Resources Application App Store Executable Base Resources Game Level 1 Game Level 2 Game Level n'

22 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 2 Game Level n'

23 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 1 Game Level 2 Game Level n'

24 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 1 Game Level 2 Game Level n'

25 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 1 Game Level 2 Game Level 2 Game Level n'

26 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 1 Game Level 2 Game Level 2 Game Level n'

27 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 1 Game Level 2 Game Level 2 Game Level n'

28 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 1 Game Level 2 Game Level 2 Game Level n' Game Level n'

29 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 2 Game Level 2 Game Level n' Game Level n'

30 On Demand Resources Application App Store Device Executable Executable Base Resources Base Resources Game Level 1 Game Level 2 Game Level 2 Game Level n' Game Level n'

31 Features Benefits for the developer

32 On Demand Resources Features

33 On Demand Resources Features Dynamically loaded content

34 On Demand Resources Features Dynamically loaded content Hosted on the App Store

35 On Demand Resources Features Dynamically loaded content Hosted on the App Store Downloadable during app install and by request

36 On Demand Resources Features Dynamically loaded content Hosted on the App Store Downloadable during app install and by request Automated downloads before first launch

37 On Demand Resources Features Dynamically loaded content Hosted on the App Store Downloadable during app install and by request Automated downloads before first launch Intelligent content caching

38 On Demand Resources Features Dynamically loaded content Hosted on the App Store Downloadable during app install and by request Automated downloads before first launch Intelligent content caching Max app size with On Demand Resources increases to 20GB

39 Features Benefits for the user

40 On Demand Resources User benefits

41 On Demand Resources User benefits Better install experience

42 On Demand Resources User benefits Better install experience More apps ready to run

43 On Demand Resources User benefits Better install experience More apps ready to run Greater, richer app content

44 Details Understanding On Demand Resources

45 On Demand Resources An element of App Thinning

46 On Demand Resources An element of App Thinning Part of ios 9 s App Thinning

47 On Demand Resources An element of App Thinning Part of ios 9 s App Thinning Integrated with App Slicing

48 On Demand Resources An element of App Thinning Part of ios 9 s App Thinning Integrated with App Slicing Tailoring the download to a specific device

49 On Demand Resources App Structure Partitioning content

50 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Executable Base Resources Game Level 1 Game Level 2 Game Level n'

51 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Executable Base Resources Game Level 1 Game Level 2 Game Level n'

52 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Executable Base Resources Game Level 1 Game Level 2 Game Level n'

53 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Executable Base Resources.app Game Level 1 Game Level 2 Asset Packs Game Level n'

54 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Tag assets using Xcode Executable Base Resources.app Game Level 1 Game Level 2 Asset Packs Game Level n'

55 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Tag assets using Xcode Tags are simple strings Executable Base Resources.app Game Level 1 Game Level 2 Asset Packs Game Level n'

56 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Tag assets using Xcode Tags are simple strings Executable Base Resources.app - Ex. Level 1 Game Level 1 Game Level 2 Asset Packs Game Level n'

57 On Demand Resources App Structure Partitioning content Partition assets into tagged groups Tag assets using Xcode Tags are simple strings Executable Base Resources.app - Ex. Level 1 May be single files or entire folders Game Level 1 Game Level 2 Asset Packs Game Level n'

58 On Demand Resources App Structure Types of content Tagged assets Executable Base Resources.app Game Level 1 Game Level 2 Asset Packs Game Level n'

59 On Demand Resources App Structure Types of content Tagged assets Images Executable Base Resources.app Game Level 1 Game Level 2 Asset Packs Game Level n'

60 On Demand Resources App Structure Types of content Tagged assets Images Sounds Executable Base Resources.app Game Level 1 Game Level 2 Asset Packs Game Level n'

61 On Demand Resources App Structure Types of content Tagged assets Images Sounds Executable Base Resources.app Data Game Level 1 Game Level 2 Asset Packs Game Level n'

62 On Demand Resources App Structure Types of content Tagged assets Images Sounds Executable Base Resources.app Data Scripts Game Level 1 Game Level 2 Asset Packs Game Level n'

63 On Demand Resources App Structure Types of content Tagged assets Images Sounds Executable Base Resources.app Data Scripts In-app purchased content Game Level 1 Game Level 2 Asset Packs Game Level n'

64 On Demand Resources App Structure Types of content Tagged assets Images Sounds Executable Base Resources.app Data Scripts In-app purchased content Game Level 1 Game Level 2 Asset Packs No executable content Game Level n'

65 Hosting On Demand Resources Whether at deployment or during development

66 Hosting On Demand Resources Whether at deployment or during development App Store

67 Hosting On Demand Resources Whether at deployment or during development App Store Xcode

68 Hosting On Demand Resources Whether at deployment or during development App Store Xcode Xcode Server

69 Hosting On Demand Resources Whether at deployment or during development App Store Xcode Xcode Server TestFlight

70 Hosting On Demand Resources Whether at deployment or during development App Store Xcode Xcode Server TestFlight Enterprise Deployment

71 Getting Started with On Demand Resources Identifying your assets

72 Getting Started with On Demand Resources Identifying your assets

73 Getting Started with On Demand Resources Identifying your assets

74 Getting Started with On Demand Resources Tagging your assets Part 1 Developer tags assets

75 Getting Started with On Demand Resources Tagging your assets Part 1 Developer tags assets Level 1 Level 1 Level 1 Level 1 Level 1

76 Getting Started with On Demand Resources Tagging your assets Part 1 Developer tags assets Level 1 Level 1 Level 2 Level 1 Level 2 Level 2 Level 1 Level 2 Level 2 Level 1

77 Getting Started with On Demand Resources Tagging your assets Part 1 Developer tags assets Level 1 Level 1 Level 2 Level 1 Level 2 Level 1, Level 2 Level 2 Level 1, Level 2 Level 1 Level 2 Level 2 Level 1 Level 1, Level 2

78 Getting Started with On Demand Resources Xcode creates asset packs from tags Part 2 Xcode creates asset packs Level 1 Level 2 Level 1 + Level 2

79 Getting Started with On Demand Resources Xcode creates asset packs from tags Part 2 Xcode creates asset packs Level 1 Level 2 Level 1 + Level 2

80 Getting Started with On Demand Resources Xcode creates asset packs from tags Part 2 Xcode creates asset packs Level 1 Level 2 Level 1 + Level 2

81 Getting Started with On Demand Resources Xcode creates asset packs from tags Part 2 Xcode creates asset packs Level 1 Level 2 Level 1 + Level 2

82 Getting Started with On Demand Resources Xcode creates asset packs from tags Part 2 Xcode creates asset packs Level 1 Level 2 Level 1 + Level 2

83 Getting Started with On Demand Resources Xcode creates asset packs from tags Part 2 Xcode creates asset packs Level 1 Level 2 Level 1 + Level 2

84 Getting Started with On Demand Resources Developer requests assets Part 3 Developer requests assets by tag Level 1 Request Level 1 Level 2 Level 1 + Level 2

85 Getting Started with On Demand Resources Developer requests assets Part 3 Developer requests assets by tag Request Level 1 Level 1 Level 1 + Level 2

86 Getting Started with On Demand Resources Developer requests assets Part 3 Developer requests assets by tag Request Level 1 Level 1 Level 1 + Level 2 Request Level 2 Level 2

87 On Demand Resources API Tony Parker Cocoa Frameworks

88 NSBundleResourceRequest

89 NSBundleResourceRequest Foundation-level command object Set up with tags and other options Tell it to begin a request

90 NSBundleResourceRequest Foundation-level command object Set up with tags and other options Tell it to begin a request Create as many as you need the system reference counts tags

91 NSBundleResourceRequest Foundation-level command object Set up with tags and other options Tell it to begin a request Create as many as you need the system reference counts tags Request decoupled from use of resources

92 NSBundleResourceRequest State machine init

93 NSBundleResourceRequest State machine init requested

94 NSBundleResourceRequest State machine init requested available error

95 NSBundleResourceRequest State machine init requested available ended error

96 NSBundleResourceRequest Basic methods

97 NSBundleResourceRequest Basic methods Initialize with set of tags convenience init(tags: Set<String>)

98 NSBundleResourceRequest Basic methods Initialize with set of tags convenience init(tags: Set<String>) Begin a request func beginaccessingresourceswithcompletionhandler((nserror?) -> Void)

99 NSBundleResourceRequest Basic methods Initialize with set of tags convenience init(tags: Set<String>) Begin a request func beginaccessingresourceswithcompletionhandler((nserror?) -> Void) Tell the system you re finished func endaccessingresources()

100 Demo On Demand Resources

101 Progress Reporting Information on progress of request var progress: NSProgress

102 Progress Reporting Information on progress of request var progress: NSProgress Cancel a request request.progress.cancel() request.progress.pause() request.progress.resume()

103 Progress Reporting Information on progress of request var progress: NSProgress Cancel a request request.progress.cancel() request.progress.pause() request.progress.resume() Best Practices for Progress Reporting Pacific Heights Friday 1:30PM

104 Conditional Requests

105 Conditional Requests Access resources, but only if they are already downloaded func conditionallybeginaccessingresourceswithcompletionhandler((bool) -> Void)

106 Conditional Requests Access resources, but only if they are already downloaded func conditionallybeginaccessingresourceswithcompletionhandler((bool) -> Void) init

107 Conditional Requests Access resources, but only if they are already downloaded func conditionallybeginaccessingresourceswithcompletionhandler((bool) -> Void) init conditionally requested

108 Conditional Requests Access resources, but only if they are already downloaded func conditionallybeginaccessingresourceswithcompletionhandler((bool) -> Void) init conditionally requested available unavailable

109 Conditional Requests Access resources, but only if they are already downloaded func conditionallybeginaccessingresourceswithcompletionhandler((bool) -> Void) init conditionally requested available ended unavailable requested

110 Loading Priority var loadingpriority: Double

111 Loading Priority var loadingpriority: Double Provides ordering for outstanding requests in your app

112 Loading Priority var loadingpriority: Double Provides ordering for outstanding requests in your app Value ranges from zero to one

113 Loading Priority var loadingpriority: Double Provides ordering for outstanding requests in your app Value ranges from zero to one For urgent requests, use NSBundleResourceRequestLoadingPriorityUrgent

114 Preservation Priority extension NSBundle { } func setpreservationpriority(double, fortags: Set<String>)

115 Preservation Priority extension NSBundle { func setpreservationpriority(double, fortags: Set<String>) } Provides ordering of purging for unused tags in your app

116 Preservation Priority extension NSBundle { func setpreservationpriority(double, fortags: Set<String>) } Provides ordering of purging for unused tags in your app Value ranges from zero to one

117 Best Practices Building optimal On Demand Resources applications

118 Consider Your App s Behavior Understand app behavior to tag assets appropriately

119 Consider Your App s Behavior Understand app behavior to tag assets appropriately Random Access

120 Consider Your App s Behavior Understand app behavior to tag assets appropriately Random Access Entirely unpredictable Use many tags Tag small groups of assets for progressive download and consumption

121 Consider Your App s Behavior Understand app behavior to tag assets appropriately Random Access Entirely unpredictable Use many tags Tag small groups of assets for progressive download and consumption

122 Consider Your App s Behavior Understand app behavior to tag assets appropriately Random Access Entirely unpredictable Use many tags Tag small groups of assets for progressive download and consumption

123 Consider Your App s Behavior Understand app behavior to tag assets appropriately Random Access Entirely unpredictable Use many tags Tag small groups of assets for progressive download and consumption

124 Consider Your App s Behavior Understand app behavior to tag assets appropriately Limited Prediction

125 Consider Your App s Behavior Understand app behavior to tag assets appropriately Limited Prediction Semi-predictable Many possibilities will not be used Use many tags Load subset of possibles Quickly end accessing on unused asset requests

126 Consider Your App s Behavior Understand app behavior to tag assets appropriately Limited Prediction Semi-predictable Many possibilities will not be used Use many tags Load subset of possibles Quickly end accessing on unused asset requests

127 Consider Your App s Behavior Understand app behavior to tag assets appropriately Limited Prediction Semi-predictable Many possibilities will not be used Use many tags Load subset of possibles Quickly end accessing on unused asset requests

128 Consider Your App s Behavior Understand app behavior to tag assets appropriately Limited Prediction Semi-predictable Many possibilities will not be used Use many tags Load subset of possibles Quickly end accessing on unused asset requests

129 Consider Your App s Behavior Understand app behavior to tag assets appropriately Limited Prediction Semi-predictable Many possibilities will not be used Use many tags Load subset of possibles Quickly end accessing on unused asset requests

130 Consider Your App s Behavior Understand app behavior to tag assets appropriately Limited Prediction Semi-predictable Many possibilities will not be used Use many tags Load subset of possibles Quickly end accessing on unused asset requests

131 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear

132 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear

133 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear Majority of assets will be used Download well in advance End accessing assets when done using

134 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear Majority of assets will be used Download well in advance End accessing assets when done using

135 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear Majority of assets will be used Download well in advance End accessing assets when done using

136 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear Majority of assets will be used Download well in advance End accessing assets when done using

137 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear Majority of assets will be used Download well in advance End accessing assets when done using

138 Consider Your App s Behavior Understand app behavior to tag assets appropriately Linear Majority of assets will be used Download well in advance End accessing assets when done using

139 The On Demand Resources Timeline Scheduling resource loading App App Launch Exit

140 The On Demand Resources Timeline Scheduling resource loading App Launch App Exit

141 The On Demand Resources Timeline Scheduling resource loading Anticipate Need App Launch App Exit

142 The On Demand Resources Timeline Scheduling resource loading beginaccessing App Launch App Exit

143 The On Demand Resources Timeline Scheduling resource loading beginaccessing App Launch App Exit Need Resources

144 The On Demand Resources Timeline Scheduling resource loading beginaccessing Loading App Launch App Exit Need Resources

145 The On Demand Resources Timeline Scheduling resource loading beginaccessing Loading App Launch App Exit Need Resources

146 The On Demand Resources Timeline Scheduling resource loading beginaccessing App Launch App Exit Need Resources Resources Ready

147 The On Demand Resources Timeline Scheduling resource loading beginaccessing Use Resources App Launch App Exit Need Resources Resources Ready

148 The On Demand Resources Timeline Scheduling resource loading beginaccessing endaccessing App Launch App Exit Need Resources Resources Ready

149 Optimize App Installation Include initially required resources with app install

150 Optimize App Installation Include initially required resources with app install Consider what is required immediately on first launch Ex. Level 1 of game

151 Optimize App Installation Include initially required resources with app install Consider what is required immediately on first launch Ex. Level 1 of game Initial Install Tags (140MB) Common Textures (50MB) Add tags to Xcode s Initial Install Tags prefetch priority Common Sounds (30MB) Level 1 (60MB)

152 Optimize App Installation Include initially required resources with app install Consider what is required immediately on first launch Ex. Level 1 of game Initial Install Tags (140MB) Common Textures (50MB) Add tags to Xcode s Initial Install Tags prefetch priority - Included in total size of app in App Store Common Sounds (30MB) Level 1 (60MB)

153 Automate Post-Installation Downloading additional content Consider what is required next Ex. Level 2 of game

154 Automate Post-Installation Downloading additional content Consider what is required next Prefetched Tag Order (120MB) Ex. Level 2 of game Use Xcode to assign a prefetch order Level 2 Part 1 (40MB) Level 2 Part 2 (45MB) Level 2 Part 3 (35MB)

155 Caching User behavior and developer hints inform caching

156 Caching User behavior and developer hints inform caching On Demand Resources content may be purged when storage space is low

157 Caching User behavior and developer hints inform caching On Demand Resources content may be purged when storage space is low Attributes effecting purging

158 Caching User behavior and developer hints inform caching On Demand Resources content may be purged when storage space is low Attributes effecting purging Last used timestamp

159 Caching User behavior and developer hints inform caching On Demand Resources content may be purged when storage space is low Attributes effecting purging Last used timestamp Preservation priority

160 Caching User behavior and developer hints inform caching On Demand Resources content may be purged when storage space is low Attributes effecting purging Last used timestamp Preservation priority - A ranking of the most important tags (0.0 to 1.0)

161 Caching User behavior and developer hints inform caching On Demand Resources content may be purged when storage space is low Attributes effecting purging Last used timestamp Preservation priority - A ranking of the most important tags (0.0 to 1.0) Application running state

162 Caching Preserving On Demand Resources Content

163 Caching Preserving On Demand Resources Content Avoid large capacity tags in order to avoid over-purging 64MB per tag is recommended

164 Caching Preserving On Demand Resources Content Avoid large capacity tags in order to avoid over-purging 64MB per tag is recommended Properly set preservation priority Avoid marking all tags with highest preservation priority of 1.0

165 Caching Preserving On Demand Resources Content Avoid large capacity tags in order to avoid over-purging 64MB per tag is recommended Properly set preservation priority Avoid marking all tags with highest preservation priority of 1.0 Always indicate when done with a tag Call endaccessingresources when done with a tag Allow the request to dealloc

166 Performance Considerations Tradeoffs

167 Performance Considerations Tradeoffs On Demand Resources downloads balance resource utilization with speed of download Downloads may be done during game play while not overly consuming CPU

168 Performance Considerations Tradeoffs On Demand Resources downloads balance resource utilization with speed of download Downloads may be done during game play while not overly consuming CPU Urgent loading priority Used when speed of download is most important, regardless of CPU request.loadingpriority = NSBundleResourceRequestLoadingPriorityUrgent

169 Performance Testing Analyzing download performance and latency

170 Performance Testing Analyzing download performance and latency Real world testing

171 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server

172 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

173 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

174 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

175 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

176 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

177 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

178 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

179 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

180 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

181 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

182 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

183 Performance Testing Analyzing download performance and latency Real world testing Host assets via TestFlight or Xcode Server Use the Developer Tools Network Link Conditioner

184 Networking Errors Properly handle errors for a better user experience

185 Networking Errors Properly handle errors for a better user experience No network connection at time of request NSURLErrorNotConnectedToInternet

186 Networking Errors Properly handle errors for a better user experience No network connection at time of request NSURLErrorNotConnectedToInternet Resource does not exist NSURLErrorResourceUnavailable

187 Storage Space Errors Properly handle errors for a better user experience

188 Storage Space Errors Properly handle errors for a better user experience Requesting more than 2GB in use result in an error

189 Storage Space Errors Properly handle errors for a better user experience Requesting more than 2GB in use result in an error Insufficient local storage results in notification NSBundleResourceRequestLowDiskSpaceNotification

190 Cellular Data Accounting for On Demand Resources downloads On Demand Resources downloads

191 Cellular Data Accounting for On Demand Resources downloads On Demand Resources downloads Controlled by application s cellular data switch

192 Cellular Data Accounting for On Demand Resources downloads On Demand Resources downloads Controlled by application s cellular data switch Counted towards cellular data usage of application

193 Cellular Data Accounting for On Demand Resources downloads On Demand Resources downloads Controlled by application s cellular data switch Counted towards cellular data usage of application 100MB cellular download install limit

194 Cellular Data Accounting for On Demand Resources downloads On Demand Resources downloads Controlled by application s cellular data switch Counted towards cellular data usage of application 100MB cellular download install limit On Demand Resources with tags under Initial Install Tags count towards this limit

195 Vital Statistics Numbers to remember

196 Vital Statistics Numbers to remember Maximum app size 2GB for.app bundle 20GB including On Demand Resources content

197 Vital Statistics Numbers to remember Maximum app size 2GB for.app bundle 20GB including On Demand Resources content 2GB of Initial and Prefetched On Demand Resources content (sliced, uncompressed)

198 Vital Statistics Numbers to remember Maximum app size 2GB for.app bundle 20GB including On Demand Resources content 2GB of Initial and Prefetched On Demand Resources content (sliced, uncompressed) 2GB of On Demand Resources in use content (sliced, uncompressed) In use On Demand Resources content is included in the size of your application via usage settings

199 Vital Statistics Numbers to remember Maximum app size 2GB for.app bundle 20GB including On Demand Resources content 2GB of Initial and Prefetched On Demand Resources content (sliced, uncompressed) 2GB of On Demand Resources in use content (sliced, uncompressed) In use On Demand Resources content is included in the size of your application via usage settings Single asset pack must be no larger than 512MB (sliced, uncompressed)

200 On Demand Resources Summary

201 On Demand Resources Summary Dynamically loaded content

202 On Demand Resources Summary Dynamically loaded content Hosted on the App Store

203 On Demand Resources Summary Dynamically loaded content Hosted on the App Store Downloadable during app install and by request

204 On Demand Resources Summary Dynamically loaded content Hosted on the App Store Downloadable during app install and by request Prioritized downloads

205 On Demand Resources Summary Dynamically loaded content Hosted on the App Store Downloadable during app install and by request Prioritized downloads Intelligent content caching

206 On Demand Resources Summary Dynamically loaded content Hosted on the App Store Downloadable during app install and by request Prioritized downloads Intelligent content caching Max app size with On Demand Resources increases to 20GB

207 More Information Documentation On-Demand Resources Guide NSBundleResourceRequest Class Reference Technical Support Apple Developer Forums Developer Technical Support App Distribution Guide Sample Code DemoBots General Inquiries Curt Rothert, App Frameworks Evangelist

208 Related Sessions and Lab App Thinning in Xcode Presidio Wednesday 9:00AM Continuous Integration and Code Coverage in Xcode Presidio Thursday 10:00AM Best Practices for Progress Reporting Pacific Heights Friday 1:30PM On Demand Resources Lab Frameworks Lab B Thursday 11:00AM

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