Xcode 4 Cookbook

Xcode 4 Cookbook

By : Steven F. Daniel

Buy this Book

Xcode 4 Cookbook

By: Steven F. Daniel

Buy this Book

Overview of this book

The release of iOS 6 comes packed with over 1,500 new APIs and 200 new features. Xcode 4 Cookbook will teach youhow to integrate iCloud storage and how to go about using the Facebook and OpenGraphi APIs, as well as providing you with practical step-by-step recipes covering User Interfaces, data management, multimedia, localisation services and maps, right through to application deployment to the Apple App Store. You will soon be mastering the technology and the skills needed to create some amazing applications. "Xcode 4 Cookbook" will help you learn how to build some powerful applications using iOS 6 and the various frameworks. You will soon master how to incorporate iCloud, Facebook, and the OpenGraph APIs and apply various image filters and transitions using Core Image integration within your applications. By using the book’s step-by-step approach, you will soon master the technology and the skills needed to create some amazing applications. "Xcode 4 Cookbook" provides you with the skills and knowledge and practical recipes on how to go about developing useful applications that can be used within the industry. You will start by learning how to go about downloading and installing the Xcode Development Tools, learn about Interface Builder to create the visual user interfaces, connecting the objects using Outlets and Actions, and learn how to compile/debug your applications. Finally, you will learn how to capture media with the iOS camera and play back video content using Airplay to wirelessly stream videos to an Apple TV device, using the AV Foundation framework, as well as using the Core Image and Core Graphics frameworks to create amazing image effects using the built-in features.

Xcode 4 Cookbook

Credits

About the Author

Acknowledgement

About the Reviewers

www.PacktPub.com

Preface

Free Chapter

Getting and Installing the iOS SDK Development Tools

Introduction

Downloading and installing the iOS SDK

Using Xcode to create an iOS project

Using Interface Builder to create the user interface

Building the user interface for our application

Creating outlets to Interface Builder objects

Creating actions that respond to user actions

Compiling your project

Using the iOS Simulator to test your applications

Configuring and using compiler directives

Debugging your iOS applications using Xcode

Using the Clang Static Analyzer to examine your code

User Interfaces – Creating the UI

Introduction

Adding and customizing views

Using labels to display text

Obtaining user input through the use of buttons

Displaying an image within the view

Displaying and editing text

Using the iOS device keyboard

Displaying the progress to the user

Adding a toolbar to a view

Fading a view in and out

Creating a custom table view controller

Adding a table view to a view controller

Handling different iOS devices

Using Storyboards

Introduction

Configuring storyboards for a project

Creating a Twitter application

Creating storyboard scenes

Configuring storyboard scenes

Applying transitions to storyboards

Composing a tweet

Adding photos to a tweet

Preparing transition to another view controller

Presenting storyboard view controllers programmatically

Using Xcode Instruments

Introduction

Introducing Xcode Instruments

Tracing iOS applications

Running and profiling an iOS project

Detecting virtual memory faults

Detecting memory leaks

Handling runtime errors

Handling compile-time errors

Adding and configuring Instruments

Working with the Location Services and the MapKit Frameworks

Introduction

Adding the CoreLocation and MapKit frameworks

Building a simple CoreLocation application

Determining the current GPS location

Adding and working with the MapView control

Adding overlay regions to maps

Adding annotation placeholders to the map

Reversing geocode address information

Working with the different map types

Storing Documents within the Cloud

Introduction

Storing and using documents within iCloud

Working with the iCloud storage APIs

Detecting file version conflicts within iCloud

Building the iCloud application

Requesting entitlements for iCloud storage

Configuring iOS devices to use iCloud

Working with Different Multimedia Resources

Introduction

Selecting images and video from the camera roll

Capturing media with the camera

Playing video with Apple TV integration

Playing music using the MediaPlayer framework

Using the iOS device's microphone to record

Animating views

Drawing customized text

Drawing lines and curves

Drawing and filling shapes

Applying color effects using Core Image

Applying transition effects

Working with the CoreData and GameKit Frameworks

Introduction

Adding the GameKit and MessageUI frameworks

Building the Core Data data model

Creating the Core Data model files

Adding and configuring the Storyboard

Creating the Books Library user interface

Displaying data within the Table View

Inserting data within our Core Data data model

Delete an item from the Table View using Core Data

Reordering rows within a Table View

Filtering and searching for data within a Table View

Working with the different keyboard styles

Transferring data to another device using bluetooth

Implementing e-mail messaging

Creating a Social Networking App with the Facebook iOS SDK

Introduction

Downloading the Facebook iOS SDK

Registering your iOS applications with Facebook

Building a simple social networking application

Adding the Facebook SDK and dependencies to your project

Implementing the Single Sign On (SSO) feature

Implementing the View Controller class

Requesting additional Facebook permissions

Using the Graph API to read JSON data

Integrating with the Facebook social channels

Handling Facebook errors within your application

Packaging and Deploying Your Application

Introduction

Setting up your iOS development team

Creating the iOS development certificate

Obtaining the development certificate from Apple

Registering your iOS devices for testing

Creating your application App IDs

Creating the development provisioning profiles

Using the provisioning profile to install the app on an iOS device

Preparing an application for submission to the App Store using iTunes Connect

Archiving and submitting apps using Xcode 4

Exploring the MultiTouch Interface

Introduction

Sensing the movement and device orientation

Using the shake gesture with the touch interface

Detecting device touches with the touch interface

Sensing movement with the accelerometer input

Working with the iOS device gyroscope

Index

Customer Reviews

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Debugging your iOS applications using Xcode

In this recipe, we will show how easy it is to debug applications within Xcode and the iOS Simulator.

Getting ready

Xcode 4, provides you with a debugger for debugging your applications either using the iOS Simulator or on the actual iOS device. In this recipe, we will see how easy it is to debug applications to debug our HelloWorld application.

How to do it…

Debugging your application using the Xcode development environment is a simple process, and allows you to monitor changes to your application variables, as well as stepping through your source code line by line, and can be achieved by performing the following simple steps:

Open the ViewController.m implementation file from the project navigator.
Next, locate the btnTapHere event method and place a breakpoint within the gray gutter, as shown in the following screenshot.
You will notice that an arrow appears at the line you placed the marker at.
Next, build and run the application by selecting Product | Run from the Product menu, or alternatively by pressing command + R.
Populate the Firstname and Surname fields, and click on the Tap Here button.
You will notice that execution of our application has paused, and the debugger has stopped at the line where we placed our breakpoint.
Hover the mouse over the greeting variable in the breakpoint line to see the contents of the greeting label.
To continue execution of your application, click on the Continue program execution button.

How it works…

Although you can use the debugger to pause execution of your program at any time and view the state of your program variables, it is better to set the breakpoints before you run your application.

A breakpoint is basically an instruction that tells the application to stop when the breakpoint has been reached. During this phase, the execution of your code pauses and waits for further instructions as to what to do next. During this phase, you have the opportunity to either inspect the current values of any of the properties, or step through the code.

Xcode 4 Cookbook

By : Steven F. Daniel

Xcode 4 Cookbook

By: Steven F. Daniel

Overview of this book

Related Content you might be interested in

Current Title:

Xcode 4 Cookbook

Debugging your iOS applications using Xcode

Getting ready

How to do it…

How it works…

See Also