apple ios report

Visvesvaraya Technological University (VTU)Belgaum

Technical Seminar Reporton

Apple iOS

Chethan H A (4GH08CS010)

Under the Guidance of

Mr.Annaiah.HB.E.,M.Tech.,

Assistant Professor

Department of CS&E, GEC,Hassan

Department of Computer Science & Engineering

Government Engineering College,Hassan-573201

June 2012

Government Engineering College, Hassan 573 201

Department of Computer Science and Engineering

CertificateThis is to certify that the work entitled “Apple iOS” is a bonafide work carried out by

Chethan H A (4GH08CS010) in partial fulfillment of the award of the degree of Bachelor

of Engineering in Computer Science & Engineering of Visvesvaraya Technological Uni-

versity, Belgaum, during the year 2012. It is certified that all corrections / suggestions

indicated during CIE have been incorporated in the report. The seminar report has been

approved as it satisfies the academic requirements in respect of the technical seminar

prescribed for the Bachelor of Engineering Degree.

Guide

Mr.Annaiah.HB.E,M.Tech.

AssistentProfessor

Dept.ofCS&E

GEC, Hassan− 573201

Cordinator

Mr.Chethan K CB.E,M.Tech.

AssistentProffesor

Dept.ofCS&E


Head of the Department

Dr.K.C.RavishankarB.E,M.Tech,Ph.D

ProfessorandHead

Dept.ofCS&E


Date :

Place : Hassan

Acknowledgement

“Acknowledgement - At the outset I express my most sincere grateful

thanks to my Guide Mr.Annaiah.H, Assistant Professor , Department

of CS&E, for his continous support and advice not only during the course

of my seminar but also during the period of our stay in GECH.

I would like to thank our seminar co-ordinator Mr.Chethan.K.C, Assis-

tant professor,Department of CS&E for his kind support.

I express my gratitude to Dr.K.C.Ravishankar, Professor and Head,

Department of CS&E for his encouragement and support throughout my

work.

I wish to express my thanks to beloved Dr.Karisiddappa, Principal for

encouragement throughout my studies.

Finally I express my gratitude to all teaching and non-teaching staff of Dept.

of CSE, Fellow classmates and my parents for their timely support and sug-

gestions.

Chethan H A

4GH08CS010

i

Table of Contents

Table of Contents ii

Abstract iii

1 Introduction 1

2 About iOS 2

3 The iOS Architecture 4

3.1 The Core OS layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.2 The core services layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 The media layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.4 The Cocoa Touch layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 iOS Development 9

4.1 Xcode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Intruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

5 iOS versions 12

5.1 Features of iOS 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Conclusion 17

References 18

ii

Abstract

iOS is Apple’s mobile operating system developed originally for the iPhone,

and later deployed on the iPod Touch and iPad as well. It is derived from

Mac OS X, with which it shares the Darwin foundation, and is therefore a

Unix-like operating system, by nature. In iOS, there are four abstraction

layers: the Core OS layer, the Core Services layer, the Media layer, and the

Cocoa Touch layer. The operating system uses roughly 500 megabytes of the

device’s storage.

Apple does not permit the OS to run on third-party hardware. As of June

7, 2010, Apple’s App Store contained more than 225,000 iOS applications,

which had collectively been downloaded more than five billion times. The

user interface of iOS is based on the concept of direct manipulation, using

multi-touch gestures. Interface control elements consist of sliders, switches,

and buttons. The response to user input is immediate and provides a fluid

interface. Interaction with the OS includes gestures such as swiping, tapping,

pinching, and reverse pinching.

iii

Chapter 1

Introduction

iOS is the operating system at the heart of iPhone, iPod touch, and iPad devices.The

iOS platform was built using the knowledge that went into the creation of Mac OS X,

and many of the tools and technologies used for development on the platform have their

roots in Mac OS X as well. Despite its similarities to Mac OS X, iOS does not require ex-

perience developing Mac OS X applications. The iOS Software Development Kit (SDK)

provides everything you need to get started creating iOS applications.

The iPhone SDK contains the code, information, and tools you need to develop, test,

run, debug, and tune applications for iOS. The Xcode tools provide the basic editing,

compilation, and debugging environment for your code. Xcode also provides the launching

point for testing your applications on an iOS device, and in iPhone Simulatora platform

that mimics the basic iOS environment but runs on your local Macintosh computer.

iOS comprises the operating system and technologies that you use to run applications

natively on devices, such as iPad, iPhone, and iPod touch. Although it shares a common

heritage and many underlying technologies with Mac OS X, iOS was designed to meet

the needs of a mobile environment, where users needs are slightly different. If you have

previously developed applications for Mac OS X, you will find many familiar technologies,

but youll also find technologies that are available only on iOS, such as the Multi-Touch

interface and accelerometer support.

1

Chapter 2

About iOS

iOS is was developed by Apple Inc. in june 2007 for iPhone so it is also called iPhone

OS.It is programmed in C,C++ and Objective C and derived from the Mac OS X.The

Mac OS X is series of Operating System developed by Apple Inc. and it supports Graph-

ical user Interfaces(GUI) and therefore a Unix like OS.

The kernel type is Hybrid kernel architecture and hybrid kernel architecture is com-

bination of microkernel and monolithic kernel.iOS is currently supported by 34 languages

worldwide.The Latest Stable release is version 5.0.1 (Build 9A406) for iPhone 4 S and

The Latest Stable release is version 5.0.1(Build 9A405) for iPhone,iPhone 3G,iPhone

3GS ,iPhone 4,iPod Touch and iPad and The Latest unstable release is version 5.1(Build

9B5141a).The defaultuser interface of iOS is Cocoa Touch(Multi-touch,GUI).

Initially, third-party applications were not supported. Steve Jobs argued that developers

could build web applications that ”would behave like native apps on the iPhone”.On

October 17, 2007, Apple announced that a native SDK was under development and that

they planned to put it ”in developers’ hands in February”. On March 6, 2008, Apple

released the firstbeta, along with a new name for the operating system: iPhone OS. Brisk

sales of Apple mobile devices kindled interest in the SDK.

Multitasking:

The biggest and most obvious update to iOS 4 is the ability for third-party applications

to ”multitask”that is, you don’t have to terminate them in order to do something else

in another app. This is functionality that has been requested of Apple since the launch

of the original iPhone in 2007, and it has been a long time coming. (Only the iPhone 4,

iPhone 3GS, and third-gen iPod touch get multitasking.)

2

Apple iOS Chapter 2

Apple’s own apps have always been able to truly multitask (you can get iCal alerts

while playing a game, for example, or listen to music from the iPod app while reading a

webpage), but third parties can now take advantage of alimited setof multitasking capa-

bilities in order to make things easier on the user.

Apple claims that it only allows for certain functionality so that the OS can continue

to preserve battery life and performance in a sane manner. So, what exactlycanyou do

with this new feature? Really, the answer isn’t so much that apps will be ”multitasking,”

but rather that they’ll be ”doing a few things in the background”

Audio: you can now listen to streaming music from apps, like Pandora or newscasts

through the NPR app, while doing other activities on your phone. Previously, you would

have to quit out of the app (and therefore stop your music stream) if you wanted to

respond to an SMS or read your e-mail, and now that’s no longer the case.

VoIP: similarly, you can carry on Voice Over IP calls on services like Skype without

having to quit the app if you need to perform other tasks.

Location: apps that need to poll your location, such as GPS and direction apps, will

be able to do so in the background. No longer will you need to keep the app in the

foreground just so it can keep track of where you are.

Local notifications: third-party apps no longer have to rely solely on push notifica-

tions if they want to alert you of something on your phone.

Complete tasks: if you start a task in an application and then switch to another one

(such as downloading a new map in your favorite game), it can now complete the task in

the background instead of forcing you to sit there and wait on it.

Fast app switching: this is basically ”pausing” an app where it is, which allows you

to quickly switch away from it and then switch back, picking up where you left off.

Dept of CS&E, GEC,Hassan 3

Chapter 3

The iOS Architecture

The iOS architecture is similar to the basic architecture found in Mac OS X. At the

highest level, iOS acts as an intermediary between the underlying hardware and the

applications that appear on the screen.The applications you create rarely talk to the un-

derlying hardware directly. Instead, applications of the iOS Architecture communicate

with the hardware through a set of well-defined system interfaces that protect your ap-

plication from hardware changes. This abstraction makes it easy to write applications

that work consistently on devices with different hardware capabilities.

The iOS Architecture consists of four main layers namely:

The core Operating system

The core services layer

The medium layer

The Cocoa Touch layer

3.1 The Core OS layer

This layer contains the low-level features that most other technologies are built upon.

Even if you do not use these technologies directly in your applications, they are most

likely being used by other frameworks.

Accelerate Framework Introduced in iOS 4.0, the Accelerate framework (Accelerate.framework)

contains interfaces for performing DSP, linear algebra, and image-processing calculations.

The advantage of using this framework over writing your own versions of these interfaces

is that they are optimized for all of the hardware configurations present in iOS-based

devices.

4

Apple iOS Chapter 3

Core Bluetooth -The Core Bluetooth framework (CoreBluetooth.framework) allows

developers to interact specifically with Bluetooth Low-Energy (”LE”) accessories.

External Accessory Framework -Introduced in iOS 3.0, the External Accessory frame-

work (ExternalAccessory.framework) provides support for communicating with hardware

accessories attached to an iOS-based device. Accessories can be connected through the

30-pin dock connector of a device or wirelessly using Bluetooth.

Security Framework -iOS also provides an explicit Security framework(Security.framework)

that you can use to guarantee the security of the data your application manages.This

framework provides interfaces for managing certificates, public and private keys, and

trust policies. It supports the generation of cryptographically secure pseudorandom num-

bers. It also supports the storage of certificates and cryptographic keys in the keychain,

which is a secure repository for sensitive user data. The Common Crypto library provides

additional support for symmetric encryption, HMAC, and digests. The digests feature

provides functions that are essentially compatible with those in the OpenSSL library,

which is not available in iOS.

3.2 The core services layer

The Core Services layer contains the fundamental system services that all applications

use. Even if you do notuse these services directly, many parts of the system are built on

top of them.The following sections describe some of the key technologies available in the

Core Services layer.

iCloud Storage -Introduced in iOS 5, iCloud storage lets your application write user

documents and data to a central location and access those items from all of a users com-

puters and iOS devices.

There are two ways that applications can take advantage of iCloud storage, each of

which has a different intended usage:

1. iCloud document storageUse this feature to store user documents and data in the

users iCloud account.

2. iCloud key-value data storageUse this feature to share small amounts of data among

instances of your application.

Accounts Framework -Introduced in iOS 5, the Accounts framework (Accounts.framework)Dept of CS&E, GEC,Hassan 5

Apple iOS Chapter 3

provides a single sign-on model for certain user accounts.Single sign-on improves the user

experience, because applications no longer need to prompt a user separately for login

information related to an account.

Address Book Framework -The Address Book framework (AddressBook.framework)

provides programmatic access to the contacts stored on a users device.

Core Data Framework -Introduced in iOS 3.0, the Core Data framework (Core-

Data.framework) is a technology for managing the data model of a Model-View-Controller

application.

3.3 The media layer

The Media layer contains the graphics, audio, and video technologies geared toward cre-

ating the best multimedia experience available on a mobile device.

Graphics Technologies

High-quality graphics are an important part of all iOS applications. Core Graphics (also

known as Quartz) handles native 2D vector- and image-based rendering. Core Animation

(part of the Quartz Core framework) provides advanced support for animating views and

other content. Core Image provides advanced support for manipulating video and still

images.

Audio Technologies

The audio technologies available in iOS are designed to help you provide a rich audio

experience for your users. This experience includes the ability to play high-quality audio,

record high-quality audio, and trigger the vibration feature on certain devices.The audio

technologies in iOS support the following audio formats:AAC,Apple Lossless (ALAC), A-

law,IMA/ADPCM (IMA4),Linear PCM, -law,DVI/Intel IMA ADPCM,Microsoft GSM

6.10.

Video Technologies

Whether you are playing movie files from your application or streaming them from the

network, iOS provides several technologies to play your video-based content. On devices

with the appropriate video hardware, you can also use these technologies to capture video

and incorporate it into your application.

The video technologies in iOS support the playback of movie files with the .mov, .mp4,Dept of CS&E, GEC,Hassan 6

Apple iOS Chapter 3

.m4v, and .3gp filename extensions and using the following compression standards:

1. H.264 video, up to 1.5 Mbps, 640 by 480 pixels,Low-Complexity version of the

H.264 Baseline Profile with AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in

.m4v, .mp4, and .mov file formats

2. H.264 video, up to 768 Kbps, 320 by 240 pixels, Baseline Profile up to Level 1.3 with

AAC-LC audio up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats

3. MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, Simple Profile with AAC-LC audio

up to 160 Kbps, 48 kHz, stereo audio in .m4v, .mp4, and .mov file formats

AirPlay

AirPlay is a technology that lets your application stream audio to Apple TV and to third-

party AirPlay speakers and receivers. AirPlay support is built in to the AV Foundation

framework and the Core Audio family of frameworks. Any audio content you play using

these frameworks is automatically made eligible for AirPlay distribution. Once the user

chooses to play your audio using AirPlay, it is routed automatically by the system.

3.3.1 Media Layer Frameworks

Core Graphics Framework -The Core Graphics framework (CoreGraphics.framework)

contains the interfaces for the Quartz 2D drawing API. Quartz is the same advanced,

vector-based drawing engine that is used in Mac OS X. It provides support for path-based

drawing, anti-aliased rendering, gradients, images, colors, coordinate-space transforma-

tions, and PDF document creation, display, and parsing.

Core Image Framework -Introduced in iOS 5, the Core Image framework (CoreIm-

age.framework) provides a powerful set of built-in filters for manipulating video and still

images.

3.4 The Cocoa Touch layer

The Cocoa Touch layer contains the key frameworks for building iOS applications. This

layer defines the basic application infrastructure and support for key technologies such as

multitasking, touch-based input, push notifications, and many high-level system services.

High level features such as storyboards,Document support,Multitasking,Printing,Data


Apple iOS Chapter 3

Protection,Apple push notifications service and File sharing are supported by Cocoa

touch layer.

There are so many Cocoa touch layer frameworks are there.They are:

Address Book UI Framework -The Address Book UI framework (AddressBookUI.framework)

is an Objective-C programming interface that you use to display standard system inter-

faces for creating new contacts and for editing and selecting existing contacts.

Game Kit Framework -Introduced in iOS 3.0, the Game Kit framework (GameKit.framework)

lets you add peer-to-peer network capabilities to your applications. Specifically, this

framework provides support for peer-to-peer connectivity and in-game voice features.

Twitter Framework -Introduced in iOS 5, the Twitter framework (Twitter.framework)

provides support for sending Twitter requests on behalf of the user and for composing

and sending tweets.The Twitter framework also works in conjunction with the Accounts

framework (Accounts.framework) to access the users account.

Map Kit Framework -Introduced in iOS 3.0, the Map Kit framework (MapKit.framework)

provides a scrollable map interface that you can integrate into your existing view hierar-

chies. You can use this map to provide directions or highlight points of interest. Appli-

cations can programmatically set attributes of the map or let the user navigate the map

freely. You can also annotate the map with custom images or content.

iOSArchitectureLayers


Chapter 4

iOS Development

Mac OS X applications cannot be copied to and run on an iOS device. The applica-

tions must be written and compiled specifically for iOS and the ARM architecture. The

Safari web browser supports web applications as with other web browsers. Authorized

third-party native applications are available for devices running iOS 2.0 and later through

Apple’s App Store.

iOS is the operating system that runs on iPhone, iPod touch, and iPad devices. This

operating system manages the device hardware and provides the technologies required

to implement native applications. The operating system also ships with various system

applications, such as Phone, Mail, and Safari, that provide standard system services to

the user.

Software Development Kit(SDK)

The iOS SDK contains the tools and interfaces needed to develop, install, run, and test

native applications. Native applications are built using the iOS system frameworks and

Objective-C language and run directly on iOS. Unlike web applications, native applica-

tions are installed physically on a device and are therefore always available to the user,

even when the device is in Airplane mode. They reside next to other system applications

and both the application and any user data is synced to the users computer through

iTunes.

On October 17, 2007, in an open letter posted to Apple’s ”Hot News” weblog, Steve

Jobs announced that a software development kit (SDK) would be made available to

third-party developers in February 2008. The SDK was released on March 6, 2008, and

allows developers to make applications for the iPhone and iPod Touch, as well as test

9

Apple iOS Chapter 4

them in an ”iPhone simulator”. However, loading an application onto the devices is only

possible after paying an iPhone Developer Program fee. Since the release of Xcode 3.1,

Xcode is the development environment for the iPhone SDK. iPhone applications, like iOS

and Mac OS X, are written in Objective-C.

Developers are able to set any price above a set minimum for their applications to be

distributed through the App Store, of which they will receive a 70 percent share. Alter-

nately, they may opt to release the application for free and need not pay any costs to

release or distribute the application except for the membership fee.

Some have criticized the mandatory Developer Agreement’s refund policy, which says

that if someone purchases an app from the App Store, 30 percent of the price goes to

Apple, and 70 percent to the developer. If a refund is granted to the customer (at Apple’s

discretion), the 30 percent is returned to the customer from Apple, and 70 percent from

the developer; however, Apple can then take another 30 percent of the cost from the

developer to make up for Apple’s loss.

4.1 Xcode

The focus of your development experiences is the Xcode application. Xcode is an inte-

grated development environment (IDE) that provides all of the tools you need to create

and manage your iOS projects and source files, assemble your user interface, build your

code into an executable, and run and debug your code either in iOS Simulator or on a

device. Xcode incorporates a number of features to make developing iOS applications

easier, including the following:

1. A project management system for defining software products

2. A code-editing environment that includes features such as syntax coloring, code com-

pletion, and symbol indexing

3. An integrated editor for creating storyboard and nib files

4. An advanced documentation viewer for viewing and searching Apple documentation

5. A context-sensitive inspector for viewing information about selected code symbols

6. An advanced build system with dependency checking and build rule evaluation

7. LLVM and Clang support for C, C++, and Objective-C

8. GCC compilers supporting C, C++, Objective-C, Objective-C++, and other lan-

guages

9. A static analyzer for validating the behavior of your app and identifying potential

problems.Dept of CS&E, GEC,Hassan 10

Apple iOS Chapter 4

10. Integrated source-level debugging using GDB

11. Support for integrated source-code management

12. Support for DWARF and Stabs debugging information (DWARF debugging infor-

mation is generated by default for all new projects)

13.Support for managing iOS development devices

To create a new iOS application, you start by creating a new project in Xcode. A

project manages all of the information associated with your application, including the

source files, build settings, and rules needed to put all of the pieces together. The heart

of every Xcode project is the project window. This window provides quick access to all

of the key elements of your application. In the Groups Files list, you manage the files

in your project, including the source files and build targets that are created from those

source files. In the toolbar, you access commonly used tools and commands. We can

then configure the workspace to display the panes you need for editing, navigating your

project content, debugging, and obtaining additional information about items.

4.2 Intruments

To ensure that you deliver the best user experience for your software, the Instruments

environment lets you analyze the performance of your iOS applications while running in

Simulator or on a device. Instruments gathers data from your running application and

presents that data in a graphical display called the timeline view .

We can gather data about your applications memory usage, disk activity, network activ-

ity, and graphics performance. The timeline view can display all the types of information

side by side, letting you correlate the overall behavior of your application, not just the

behavior in one specific area.

For example, the Instruments window lets you store data from multiple runs so that

you can see whether your applications behavior is actually improving or whether it still

needs work. You can save the data from these runs in an Instruments document and

open them at any time.

In addition to providing the timeline view, Instruments provides tools to help you analyze

your applications behavior over time.


Chapter 5

iOS versions

On June 29, 2007, Apple released the first version of iOS concurrently with the first

iPhone. The final 1.x series release was 1.1.5, released shortly before version 2.0.On July

11, 2008 saw the public release of iPhone OS 2.0, with upgrades through version 2.2 made

available. iOS 3.0 was released on June 17, 2009. It was updated through (and including)

version 3.1.3.The first generation iPod Touch and iPhone have iOS 3.1.3 as their newest

available version. The iPad was introduced with 3.2, a version made specifically for the

iPad.

On June 6, 2011, Apple previewed iOS 5, Apple TV 4.4 beta and the iOS SDK 5

beta along with iCloud beta among other products. This update introduced iMessage

chat between devices running iOS 5, a new notification system, Newsstand subscriptions,

Twitter integrated into iOS, Reminders app, Enhancements to AirPlay, full integration

with iCloud and over 200 new features. iOS 5.0 supports All iPad models, iPhone 3GS,

iPhone 4 GSM CDMA, the iPod Touch 3rd 4th generation.

Apple concurrently provides the same version of iOS for the comparable model of iPod

and iPhone, usually devices released in the same calendar year. iPhone users receive all

software updates for free, while iPod Touch users paid for the 2.0 and 3.0 major software

updates. As of iOS 4.0, Apple no longer charges for iPod Touch updates.

• iOS 1.x: initial OS

• iOS 2.x: second major OS

• iOS 3.x: third major OS

• iOS 4.x: fourth major OS

• iOS 5.x: fifth major OS

12

Apple iOS Chapter 5

The Latest Stable release is version 5.0.1 (Build 9A406) for iPhone 4 S and the

Latest Stable release is version 5.0.1(Build 9A405) for iPhone,iPhone 3G,iPhone

3GS ,iPhone 4,iPod Touch and iPad and the Latest unstable release is version

5.1(Build 9B5141a)

5.1 Features of iOS 5

iMessages/messages: Messaging between all iOS devices running iOS 5 through

Wi-Fi or 3G. Allows to send text, photos, videos, contacts, and locations. All iMes-

sages and conversations will be synced between all iOS devices linked under a single

Apple ID. You can start a conversation on one device and continue it on another

and Can message between multiple people simultaneously (group messaging).

Music:

iPod app now split into Music and Videos (iPhone and iPad only).

Video podcasts can only be found in the Videos app.

Ability to play content while the device is synchronizing with iTunes.

Ability to delete songs from device (by swiping over the corresponding song).

Tap and hold on a song to view extended song information.

Long names scrolling in now playing.

Mail:

Rich text formatting (bold, italics and underline).

Indentation control.

Ability to mark multiple mail items as read.

Ability to flag emails.

Draggable mail address in the recipients field.

Alert if the subject line is blank.

Search now includes body of messages.

Delete mails while in Airplane mode.

Safari:

Safari Reader: On certain web articles, a new ’Reader’ icon will appear in the ad-

dress bar which will display a new window sheet over the current page sans any ads

or clutter. Prior or following pages in the article normally needed to open a new


Apple iOS Chapter 5

link will show up uniformly, separated by only a page break and ability to change

font size in reader mode.

iCloud:

iTunes, iBooks (books and progress), App Store, Photo, Contacts, Calendar, Notes,

Reminders, Mail, Safari bookmarks and Reading List items, device settings, app

data, iWork and backup data saved in iCloud and automatically or manually down-

loaded to all linked devices (iOS and Mac/Windows PCs.

YouTube: Ability to play 480p/720p videos over 3G (iPhone only).

Scrolling titles for YouTube videos.

iTunes/App Store:

iTunes Tone Store.

New Purchased History section.

Genius support for finding songs and apps similar to ones users have purchased

previously.

Ability to completely disable in-App purchases.

iTunes password prompt.

Game Center:

Photos for friends.

Ability to make your Profile public or private.

Points in Game Center: shows you how many points you have on the home screen

of Game Center.

Sort and View friends on the basis of Points.

Friend Recommendations.

Games can be purchased from within Game Center.

Keyboard:

Ability to create keyboard shortcuts (autotext) to replace custom phrases. By de-

fault includes omw which expands to On my way!. Emoji keyboard is no longer

requires an app to enable it. Define your own words in Offline Dictionary.


Apple iOS Chapter 5

Photos:

Built-in basic photo editing: crop, red-eye, auto-enhance and rotate photos.

Ability to create and edit local photo albums folders (only those that aren’t synced

with iTunes).

Ability to sync pictures taken on one iOS device automatically with other iOS 5

devices using Photo Stream.

Ability to select all when adding pictures to an album.

Slight re-design for video time-line under Photos app.

Maps:

Print maps.

Alternate routes.

Traffic.

AirPlay mirroring: Ability to connect with Airplay to an Apple TV, display

on iOS device also seen on TV.

Videos Ability to play 1080p content.

5.1.1 iOS 5.x: battery, Wi-Fi, SIM card, echo bugs and

unknown data usage

Apple has confirmed that several battery life bugs are negatively affecting battery life in

iOS 5.They attempted to fix these bugs with iOS 5.0.1 but unfortunately the problem

still remains.The launch of the iOS 5 update on October 12, 2011 (including iOS 5.0.1

released on November 10, 2011) led many users to report a major bug causing the device

to lose Wi-Fi access. As of January 17, 2012, this problem remained unresolved.Some

users of the iPhone 4S and iPad 1 reported issues with the SIM card in the initial release

of iOS 5, and even though Apple attempted to fix these issues in version 5.0.1 build 9A406

(for iPhone 4S only), they still remain. Some users of the iPhone 4S/4 reported issues

with having echo problems during phone call in the initial release of iOS 5, which causes

echos to appear randomly during phone calls made through earphones.

It has also been reported by many users that there is an issue with unknown data usage

over 3G data generally reported in the early morning or late evening.It is still unclear

what could have caused the phone to send this data over 3G even when the phone could

have used wifi to do so. It is also not clear what this data might be. And further it is not


Apple iOS Chapter 5

clear who should be responsible for this issue: Apple, carrier or both. The first report

came out as early as Feb 2010 and this issue appears to only affect iPhone users within

USA and latterly the UK. Whilst restricting the use of notifications appeared to reduce

the problem, it did not eliminate it and many users still could not seem to find a solution

as of Feb 2012.

5.1.2 List of iOS Devices

The devices include the iPhone multimedia smartphone, the iPod touch, which is similar

to the iPhone but has no cell phone hardware, and the iPad tablet computer.

All three devices function as digital audio and portable media players and Internet clients.

The Apple TV, which also runs iOS, is a set-top box for streaming local media to a con-

nected television set, and has no screen of its own.

The operating system on iOS devices can be updated through iTunes, or, on iOS 5

or later, directly on the device.

A new version of iOS tends to be released once a year, and is normally free, although iPod

touch users were formerly required to pay a fee. Apple upgrades its products’ hardware

periodically. There have been five generations of iPhone, four of iPod touch, and two of

iPad. Older models of iPod touch are available at retailers at a reduced price but are no

longer available on the Apple Store

iOSDevices

Devices.jpg


Chapter 6

Conclusion

The objective of the seminar report was to study and enhance our knowledge about Ap-

ple iOS, mobile operating system. We have learnt about the new features of the iOS 5

operating system, whats new in it, how is it different from previous versions of iOS, what

the technicality behind the iOS 5 is and some more information about it.

So we have learnt about the layers of iOS technology viz. core os, core services, media

and cocoa touch. We have studied about some aspects of the iOS 5 that will help us

in developing the applications for iPhone, via this report. Hence we are now acquainted

with iOS operating system for iPhone. We now know its features and technicality.

Despite the fact that all the information regarding iOS cannot be bound in this re-

port, I have tried to cover almost all points that made our study of iOS 5 worthy.We

have learnt many things about the iOS 5, which we can implement on our own with just

a little effort. Hence our objective has been achieved through this report.

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References

[1] iOS-http://en.wikipedia.org/wiki/IOS

[2] Mobile Operating System-http://en.wikipedia.org/wiki/Mobile_operating_

system

[3] Mac OS X-http://en.wikipedia.org/wiki/Mac_OS_X

[4] iOS Versions-http://en.wikipedia.org/wiki/IOS_version_history

[5] Hybrid Kernel-en.wikipedia.org/wiki/Hybrid_kernel

[6] iOS Devices -http://en.wikipedia.org/wiki/List_of_iOS_devices

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http://en.wikipedia.org/wiki/IOS

http://en.wikipedia.org/wiki/Mobile_operating_system

http://en.wikipedia.org/wiki/Mobile_operating_system

http://en.wikipedia.org/wiki/Mac_OS_X

http://en.wikipedia.org/wiki/IOS_version_history

en.wikipedia.org/wiki/Hybrid_kernel

http://en.wikipedia.org/wiki/List_of_iOS_devices

apple ios report

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