IOS ecosystem
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Presentation given at the 7th iOS Bootcamp in Catania. http://pragmamark.org/events/ios-bootcamp-7th-edition/
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IOS ecosystem
- 2. #pragma me • Paolo Tagliani (@PablosProject) • iOS Developer @Superpartes Innovation Campus • Founder of #pragma mark • various stuff… • @PablosProject • http://www.pablosproject.com • https://www.facebook.com/paolo.tagliani • https://github.com/pablosproject • More…
- 4. Context
- 5. Mobile Market The size of the mobile market is huge, and growing exponentially
- 6. Top smartphone vendors Source: IDC Worldwide Mobile Phone Tracker
- 7. 700 Million iPhones sold March 2015
- 8. 225 Million iPads sold October 2014
- 9. Smartphone OS Market Share Source: idc.com
- 10. Smartphone OS Market Share Source: idc.com Period Android iOS Others Q1 2015 78.0% 18.3% 3.7% Q1 2014 81.2% 15.2% 3.6% Q1 2013 75.5% 16.9% 7.6%
- 12. • 1.200.000 Applications (June 2014) • 75.000.000.000+ downloads • 800 million iTunes accounts, with credit card • the iOS customer is much more willing to pay than other platforms customer App Store
- 13. • 1.200.000 Applications (June 2014) • 75.000.000.000+ downloads • 800 million iTunes accounts, with credit card • the iOS customer is much more willing to pay than other platforms customer App Store World largest credit card database
- 15. App Store Consistency • Apple’s highly-controlled environment limits unwanted phenomenons • piracy • fraudulent apps • crappy apps
- 16. • Every App must pass an approval process • Good for environment, not so good for developers (and clients) App Review
- 17. • Every App must pass an approval process • Good for environment, not so good for developers (and clients) App Review http://appreviewtimes.com/
- 18. Requirements
- 21. Prerequisites A Mac computer running OS X 10.9.4 or later Xcode (latest version)
- 22. Membership requirements • Apple ID (free) • Apple Developer Program (ADP) subscription
- 23. Skill requirements • Object Oriented Programming • C language (optional) • Objective-C language • iOS SDK • Apple guidelines • Provisioning procedures June 2014
- 24. Environment
- 46. iOS version stats Earlier 2%iOS 7 20% iOS 8 78% As measured by the App Store on March 30, 2015.
- 48. Objective- C
- 49. • Created by Brad Cox in 1983 • Superset of C • Tailored for Cocoa development Objective- C
- 51. Objective- C Stack Overflow 2015 Survey
- 52. Swift
- 53. Swift • Modern • Designed for safety • Fast and powerful • Interactive playgrounds
- 54. Swift • Modern • Designed for safety • Fast and powerful • Interactive playgrounds
- 55. SDK
- 56. iOS • Mobile operating system ARM architecture, multitasking, Cocoa Touch, multi-touch GUI • Kernel XNU (like MAC OS X) Originally developed by NeXT for the NeXTSTEP OS, it is a hybrid kernel combining Mach and BSD components, and an object-oriented API for drivers • Initially known as iPhone OS
- 58. New frameworks
- 60. Distribution
- 61. Distribution
- 62. Apple developer program iOS Developer Program 99$/year App Store 100 devices iOS Developer University Program free NO App Store 200 devices iOS Developer Enterprise Program 299$/year NO App Store ∞ devices
- 63. Concepts • Certificate univocally identifies an actor • Device Devices must be enabled for testing • App ID Unique identifier for the app • Provisioning profile Asset which encloses the three concepts above
- 64. Certificates • Development Certificate Each person in the team has his own • Distribution Certificate There’s one for the whole company (or single developer)
- 65. Devices • Purpose devices are used during development and testing • Name + UDID Unique Device IDentifier, 40 char-long string e.g. 67a43b0925c7a8050ad788591ace81d1bda81bed • Limits 1.The ADP allows for a maximum of 100 devices 2.A device can’t be removed from the list until the next renewal of the subscription (only disabled)
- 66. App IDs • Bundle Identifier unique identifier for the app • Reverse domain name e.g. com.mycompany.BestAppEver • Wildcard character e.g. com.mycompany.*
- 67. App IDs
- 68. Provisioning Profile • What is it? it’s a resource (a file) which bundles the App ID, the device list and the certificates of the developers of the team • What does it provide? it is bundled with the app and is used to authorize the execution of the app on the devices and its deployment and distribution • How long does it last? It is valid for one year, after which it must be renewed
- 69. Provisioning Profile • Development Provisioning Profile ‣ App ID ‣ (Development) certificate list (1 or more) ‣ Device list
- 70. Provisioning Profile • Development Provisioning Profile ‣ App ID ‣ (Development) certificate list (1 or more) ‣ Device list
- 71. Provisioning Profile • Distribution Provisioning Profile ‣ Distribution method (App Store or AdHoc) ‣ App ID ‣ (Distribution) certificate ‣ Device list (only in case of AdHoc deployment)
- 74. WTF?!
- 75. Beta distribution • Can distribuite to testers before going on store • Internal testers: • Up to 25 testers • No review • External testers: • Up to 1000 testers • Beta review
- 77. Tools
- 78. Xcode
- 79. Xcode • Integrated Development Environment • Objective-C / Objective-C++ / C++ / C • LLVM and GCC compilers and debuggers • Interface Builder • Source Control (Subversion / Git) • Apple developer documentation
- 80. Simulator • iPhone / iPhone Retina (3.5” / 4” / 4.7” / 5.5”) / iPad / iPad Retina • Gestures, Orientation change, Memory Warnings • GPS • Apps: Safari, Photos, Contacts, Settings, Game Center, News Stand • Fast! (It’s x86 and runs x86 apps, no ARM emulation)
- 81. Simulator
- 82. Instruments • Application performance analyzer and visualizer • Integrated with Xcode • Tracks user events, CPU activity, memory allocations, releases and leaks, file I/O, network activity, graphics and OpenGL
- 83. Instruments
- 84. Resources
- 85. Apple documentation • iOS developer library • Swift blog • Apple developer forums • WWDC videos
- 86. Books • Programming in Objective-C • Cocoa Design Patterns • Pro Multithreading and Memory Management for iOS and Mac OS X
- 87. Video • NSScreencast • Ray Wenderlich • lynda.com
- 88. Vibrant community • #pragma mark • Cocoapods • StackOverflow • Conferences
- 89. Questions?