Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
Arcadian Learning, profile picture
Uploaded byArcadian Learning
279 views

Training in iOS Development

This document provides an overview of iOS development including advantages and disadvantages of the iOS platform, the Objective-C programming language used for iOS development, memory management in Objective-C, and the steps to create a basic iOS application with a main screen and run it in the simulator or on a physical device.

Education◦
iOS 8i iOS is a mobile operating system developed by Apple Inc. and distributed exclusively for apple hardware. It is a operating system that powers many of the company iDevices.
iOS: Advantages and disadvantages + Highest revenue for mobile OS + Little fragmentation (just iPhone and iPad) + Runs on high-end devices + Big developer community and excellent support + Many open-source libraries available - Strictly controlled by Apple - Development only possible in Mac OS - Objective C is the main programming language
Technology Application development in Objective C – a language that adds Smalltalk-style messaging to C Development done in Xcode on Mac OS devices Debugging and running on phone done also in Xcode
Apple developer program Apple developer account is free Registration process takes 3-5 days
iOS development 1010 1010 Develop No cost 1010 1010 Debug Potential cost Deploy Requires Developer Program Test Requires Developer Program
iOS debugging 1010 1010 Develop 1010 1010 Simulator does not require a developer program 1010 1010 Device requires a Developer Debug Provisioning Profile – 99$/year
Objective C Objective-C is an object oriented language Follows ANSI C style coding with methods from Smalltalk Flexible because almost everything is done at runtime: •Dynamic Binding •Dynamic Typing •Dynamic Linking It is used for both iOS and Mac OS development Source files: .m, header files: .h Has protocols, which work like interfaces in Java they specify a number of methods a class must implement
Memory allocation Objects are created dynamically using alloc keyword Objects are automatically deallocated in latest Objective- C through automatic reference counting (ARC) ARC keeps an internal count of how many times an Object is 'needed' System makes sure that objects that are needed are not deleted, and when an object is not needed it is deleted
C++ vs. Objective-C C++ Objective C Adds OOP, metaprogramming and generic programming to C Only adds OOP to C Comes with a std library Has no standard library; is dependant on other libraries Has numerous uses Mostly used for application building Large and complex code for OOP Simpler way of handling classes and objects
Creating main screen Click on the storyboard Create a navigation controller from the storyboard designer by drag and drop
Delete default screen Delete the default Table View Controller and add your own View Controller by drag and drop Right click from the navigation controller to View Controller and choose root view controller relationship
Add items to screen Add items to screen by using drag and drop: label, button and text edit Attention! Disable “Use Autolayout” from View Controller properties if you want application to work in iOS 5 and earlier
Create a class for the screen The class should subclass UiViewController
Connect your class to the storyboard Make the View Controller in the storyboard to be you class Open Assistant editor Drag and drop interface objects to you class h file to create connections
Run the application Go to project properties and set your storyboard as Main Storyboard Press run in simulator
Run the application on phone Open the organizer Log in with your developer id You need to be enroller in developer program Connect the phone to the computer Add the device to your provisioning portal
Thank You