The document discusses the architecture and history of iOS. It describes the core layers of iOS including the Core OS, Core Services, Media, and Cocoa Touch layers. It provides timelines of iOS versions and key features introduced.

1. 1 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

2. Introduction to iOS Application Development
Architecture overview and development principles
Juan Luis Buenosvinos
Enterprise Architect
2 |
juan.buenosvinos.zamora@oracle.com
© 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

3. Agenda
• Introduction
• iOS History
• iOS Architecture
• iOS Development
• Demo
• In Conclusion
3 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

4. Introduction
4 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
4
EWC REPRESENTATIVES COPY

5. Introduction
Introduction
5 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

6. iOS History
6 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
6
EWC REPRESENTATIVES COPY

7. iOS History
iOS versions > Timeline
iOS
1
iOS
2
iOS
3
iOS
4
iOS
5
iOS
6
7 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

8. iOS History
iOS History > Timeline
Version
Released
Device
Key
Func4onality
Core
iOS
UI
Mul4touch
gestures
Mobile
Safari
iOS
1.0
06
/
2007
iPhone
2G
iPod
Visual
Voicemail
Maps
iTunes
Sync
iTunes
Wi-­‐Fi
Music
Store
iPhone
2G
iOS
1.1
09
/
2007
iPod
Touch
compa4bility
iPod
Touch
1st
Gen.
8 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

9. iOS History
iOS History > Timeline
Version
Released
Device
Key
Func4onality
Na4ve
3rd-­‐party
apps
iPhone
3G
App
Store
iOS
2.0
07/2008
iPhone
2G
MicrosoK
Exchange
support
MobileMe
iPod
Touch
1st
Gen.
Contact
Search
iPhone
3G
BaOery
life
and
speed
fixes
iPhone
2G
iOS
2.1
09/2008
iTunes
Genius
playlists
iPod
Touch
2nd
Gen.
iPod
Touch
1st
Gen.
Dropped
call
fixes
9 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

10. iOS History
iOS History > Timeline
Version
Released
Device
Key
Func4onality
iPhone
3G
Google
street
view
iOS
2.2
11/2008
iPhone
2G
Podcast
downloads
iPod
Touch
1st
Gen.
Cut,
copy,
paste
iPhone
3G
Voice
Control
MMS
iPhone
2G
Spotlight
search
iOS
3.0
06/2009
Push
no4fica4ons
iPod
Touch
2nd
Gen.
USB
&
Bluetooth
tethering
Landscape
keyboard
iPod
Touch
1st
Gen.
Find
my
iPhone
10 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

11. iOS History
iOS History > Timeline
Version
Released
Device
Key
Func4onality
iPhone
3GS
Genius
features
iPhone
3G
Ringtone
downloads
iPhone
2G
iOS
3.1
09/2009
iPod
Touch
3rd
Gen.
Remote
lock
iPod
Touch
2nd
Gen.
Voice
Control
over
Bluetooth
iPod
Touch
1st
Gen.
11 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

12. iOS History
iOS History > Timeline
Version
Released
Device
Key
Func4onality
Support
for
iPad
resolu4on
New
app
views
for
iPad
iOS
3.2
04/2010
iPad
Loca4on
based
on
Apple
data
Bluetooth
keyboard
support
iBooks
iPhone
4
Mul4tasking
Home
screen
folders
iPhone
3GS
FaceTime
video
chat
iOS
4.0
06/2012
iPhone
3G
Unified
email
inbox
Threaded
email
messages
iPod
Touch
3rd
Gen
Re4na
Display
support
iPod
Touch
2nd
Gen
iAd
support
12 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

13. iOS History
iOS History > Timeline
Version
Released
Device
Key
Func4onality
iPhone
4S
Siri
iPhone
3GS,
No4fica4on
Center
iPad
PC-­‐free
iOS
5.0
10/2011
iPad
2
iTunes
Wi-­‐Fi
Sync
iPod
Touch
4th
Gen,
iMessage
iPod
Touch
3rd
Gen
iCloud
13 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

14. iOS History
iOS History > Timeline
Version
Released
Device
Key
Func4onality
iPhone
5
Homegrown
Maps
and
turn-­‐by-­‐turn
naviga4on
iPhone
4S
Siri
enhancements
iPhone
4
Facebook
integra4on
iOS
6.0
Fall
2012
iPhone
3GS
Passbook
iPad
3
iCloud
Tabs
iPad
2
Mail
enhancements
iPod
Touch
4th
Gen
FaceTime
over
cellular
14 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

15. iOS Architecture
15 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
15
EWC REPRESENTATIVES COPY

16. iOS Architecture
iOS Architecture > Introduction
OS
X
iOS
Cocoa
Cocoa
Touch
Media
Media
Core
Services
Core
Services
Core
OS
Core
OS
16 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

17. iOS Architecture
iOS Architecture > Core OS
Core
OS
Manage
the
virtual
memory
system,
threads,
the
file
system,
the
network,
and
inter-­‐process
communica4on
with
the
frameworks
in
the
Core
OS
layer.
This
layer
encompasses
the
kernel
environment,
drivers,
and
basic
interfaces
of
iO.
Power
OS
X
Kernel
Mach
3.0
BSD
Sockets
Security
Management
Keychain
Cer?ficates
File
System
Bonjour
17 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

18. iOS Architecture
iOS Architecture > Core Services
Core
Services
Gain
access
to
fundamental
iOS
services
with
the
frameworks
in
the
Core
Services
layer.
With
these
services,
access
files,
low-­‐level
data
types,
Bonjour
services,
network
sockets,
and
more.
Use
the
frameworks
in
this
layer
if
those
in
the
Cocoa
Touch
and
Media
layers
aren't
sufficient
for
your
needs.
Collec?ons
Core
Loca?on
Address
Book
Net
Services
Networking
Threading
File
Access
Preferences
SQLite
URL
u?li?es
18 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

19. iOS Architecture
iOS Architecture > Media
Media
Create
the
best
mul4media
experience
available
on
a
mobile
device
with
the
frameworks
in
the
Media
layer.
Core
Audio
JPG,
PNG,
TIFF
OpenAL
PDF
Audio
Mixing
Quartz
Audio
Core
Video
OpenGL
ES
(2D)
Recording
Anima?on
Playback
19 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

20. iOS Architecture
iOS Architecture > Cocoa Touch
Cocoa
Touch
Implement
a
graphical,
event-­‐driven
applica4on
in
iOS
with
the
frameworks
in
the
Cocoa
Touch
Layer.
In
addi4on,
use
the
frameworks
in
this
layer
to
access
key
device
features,
such
as
user
contacts.
Mul?-­‐
Mul?-­‐Touch
Touch
Accelerometer
View
Hierarchy
Localiza?on
Events
Controls
Web
Alerts
People
Picker
Image
Picker
Camera
View
20 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

21. iOS Development
21 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
21
EWC REPRESENTATIVES COPY

22. iOS Development > Key Concepts
22 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
22
EWC REPRESENTATIVES COPY

23. iOS Development
Development Key Concepts
Key
Element
Descrip4on
Tools
XCode
Interface
Builder
Frameworks
Founda?on
UIKit
Language
Objec?ve-­‐C
23 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

24. iOS Development
Key Concepts > Language > Objective-C
Main
Characteris4cs
Superset
of
C
(Can
be
mixed
with
C
and
C++)
Single
inheritance
Categories
define
behavior
across
classes
Dynamic
run?me
Object
Messaging
Class
Defini?on
Proper?es
New
Types
Enumera?on
(Anonymous
classes,
Class,
Selector)
24 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

25. iOS Development
Key Concepts > Language > Objective-C
Extension
Source
Type
Header
files.
Header
files
contain
class,
type,
func?on,
and
.h
constant
declara?ons.
Source
files.
This
is
the
typical
extension
used
for
source
.m
files
and
can
contain
both
Objec?ve-­‐C
and
C
code.
Source
files.
A
source
file
with
this
extension
can
contain
C+
+
code
in
addi?on
to
Objec?ve-­‐C
and
C
code.
This
extension
.mm
should
be
used
only
if
you
actually
refer
to
C++
classes
or
features
from
your
Objec?ve-­‐C
code.
25 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

26. iOS Development
Key Concepts > Language > Objective-C
26 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

27. iOS Development
Key Concepts > Language > Objective-C
27 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

28. iOS Development
Key Concepts > Language > Objective-C
28 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

29. iOS Development
Key Concepts > Frameworks
29 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

30. iOS Development
Key Concepts > Tools > XCode
30 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

31. iOS Development
Key Concepts > Tools > Instruments
31 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

32. iOS Development > Introduction
32 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
32
EWC REPRESENTATIVES COPY

33. iOS Development
Introduction > Anatomy of an iOS Application
Compiled
Code
(User
code
+
Frameworks)
NIB
Files
(UI
Elements,
objects
rela?onships,…)
Resources
(Images,
sounds,
…)
Info.plist
file
(applica?on
configura?on)
33 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

34. iOS Development
Introduction > iOS Application Runtime Lifecycle
Launch
App.
Load
Wait
for
Handle
Exit
App.
App.
Ini?alized
Main
LIB
Event
Event
34 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

35. iOS Development
Introduction > iOS Application Key Components
Single
instance
of
UIApplica2on
(Singleton
Pa5ern
/
UIKit
Framework)
Orchestrates
the
lifecycle
of
an
applica?on.
Dispatches
events
Manages
status
bar,
applica?on
icon
badge
Delega?on
to
perform
applica?on-­‐specific
behavior
35 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

36. iOS Development
Introduction > iOS Application Key Components
UIApplica2onDelegate
An
object
to
par?cipate
in
applica?on
lifecycle.
Call
implement
methods
witch
UIApplica?on
will
call.
Manages
status
bar,
applica?on
icon
badge
36 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

37. iOS Development
Introduction > iOS Application Key Components
Info.plist
file
Property
List
describes
an
applica?on.
Icon
appearance,
status
bar
Style,
orienta?on,…
Editable
on
XCode.
37 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

38. iOS Development
Introduction > Hello World
38 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

39. iOS Development
Introduction > Model View Controller
• The controller subsystem decouples the model and the view.
39 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

40. iOS Development
Introduction > Model View Controller
Layer
Descrip4on
Model
objects
encapsulate
the
data
specific
to
an
applica?on
and
Model
define
the
logic
and
computa?on
that
manipulate
and
process
that
data.
A
view
object
is
an
object
in
an
applica?on
that
users
can
see.
A
View
view
object
knows
how
to
draw
itself
and
can
respond
to
user
ac?ons.
A
controller
object
acts
as
an
intermediary
between
one
or
more
of
an
applica?on’s
view
objects
and
one
or
more
of
its
model
objects.
Controller
Controller
objects
are
thus
a
conduit
through
which
view
objects
learn
about
changes
in
model
objects
and
vice
versa.
40 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

41. iOS Development > Views and
Controllers
41 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
41
EWC REPRESENTATIVES COPY

42. iOS Development
MVC > Organizing Content
42 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

43. iOS Development
MVC
43 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

44. iOS Development
MVC > Views
44 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

45. iOS Development
MVC > Views
45 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

46. iOS Development
MVC > Creation Views
46 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

47. iOS Development
MVC > View Controllers and Navigation Controllers
47 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

48. Demo
48 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
48
EWC REPRESENTATIVES COPY

49. iOS Development > Publishing Apps
to the App Store
49 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
49
EWC REPRESENTATIVES COPY

50. iOS Development
Publishing to App Store
Install
the
Get
the
Submit
the
Apple
Registra?on
Provisioning
cer?fica?on
cer?fica?on
App.
Valida?on
into
XCode
50 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

51. iOS Development
Publishing to App Store > Registration
51 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential

52. In Conclusion
52 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential
52
EWC REPRESENTATIVES COPY

53. 53 | © 2012 Oracle Corporation and Mercadona Internal Only – Proprietary and Confidential