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Learning Mobile App Development: A Hands-on Guide to Building Apps with iOS and Android

By Jakob Iversen, Michael Eierman

Published by Addison-Wesley Professional

Published Date: Dec 17, 2013

Description

The Only Tutorial Covering BOTH iOS and Android—for students and professionals alike!

 

Now, one book can help you master mobile app development with both market-leading platforms: Apple’s iOS and Google’s Android. Perfect for both students and professionals, Learning Mobile App Development is the only tutorial with complete parallel coverage of both iOS and Android. With this guide, you can master either platform, or both—and gain a deeper understanding of the issues associated with developing mobile apps.

 

You’ll develop an actual working app on both iOS and Android, mastering the entire mobile app development lifecycle, from planning through licensing and distribution.

Each tutorial in this book has been carefully designed to support readers with widely varying backgrounds and has been extensively tested in live developer training courses. If you’re new to iOS, you’ll also find an easy, practical introduction to Objective-C, Apple’s native language.

 

All source code for this book, organized by chapter, is available at https://github.com/LearningMobile/BookApps

 

Coverage includes

  • Understanding the unique design challenges associated with mobile apps
  • Setting up your Android and iOS development environments
  • Mastering Eclipse development tools for Android and Xcode 5 tools for iOS
  • Designing interfaces and navigation schemes that leverage each platform’s power
  • Reliably integrating persistent data into your apps
  • Using lists (Android) or tables (iOS) to effectively present data to users
  • Capturing device location, displaying it, and using it in your apps
  • Accessing hardware devices and sensors
  • Publishing custom apps internally within an organization
  • Monetizing your apps on Apple’s AppStore or the Google Play marketplace, as well as other ways of profiting from app development, such as consulting and developer jobs

 

 

Table of Contents

Preface    xiv

Part I  Overview of Mobile App Development    1

1  Why Mobile Apps?    3

Transformative Devices    3

Reaching Customers    4

Changing Business Process    6

Making Money    9

Summary    10

Exercises    10

2  App Design Issues and Considerations    13

App Design    13

Operating System Design Issues    13

Screen Size and Orientation Issues    17

Connectivity Issues    18

Battery Issues    19

Hardware Issues    19

Device Differences    21

Android    21

iOS    23

Introducing Your First App    23

Contact Screen    24

Contact List Screen    24

Map Screen    25

Settings Screen    26

Summary    26

Exercises    27

Part II  Developing the Android App    29

3  Using Eclipse for Android Development    31

Starting a New Project    31

Setting Up the Workspace    32

Creating the Project    32

Components of the IDE    35

The Android Manifest    37

Configuring the Emulator    39

Coding the Interface    42

Coding App Behavior    50

Adding Code    52

Summary    54

Exercises    54

4  Android Navigation and Interface Design    55

Activities, Layouts, and Intents    55

The Activity Class    56

Layout    56

Intents    57

Creating the Interface    57

Create the Project    58

Create the Navigation Bar    59

Create the Contact Layout    64

Activating the Interface    78

Code the Navigation Bar    78

Code the Toggle Button    80

Code the DatePicker Dialog    82

Summary    86

Exercises    87

5  Persistent Data in Android    89

Preferences, Files, and Database    89

Preferences    89

Files    90

Database    90

Creating the Database    91

Create the Database Helper Class    91

Create the Data Source Class    93

Using the Database    98

Capture User-Entered Data    99

Save User-Entered Data    101

Use the Debugger    105

Using Preferences    107

Create the Settings Layout    107

Code the Page’s Behavior    109

Summary    113

Exercises    114

6  Lists in Android: Navigation and Information

Display    115

Lists and Adapters    115

Lists    115

Adapters    116

Simple Lists    116

Create the Data Source Method    116

Create the Layout    118

Code the Activity    118

Complex Lists    121

Create the Data Source Method    121

Create the Layout    123

Create the Custom Adapter    125

Code the Activity    127

Add Delete Functionality    128

Completing the ContactList Activity    135

Populating the ContactActivity Screen    135

Coding the Add Button    138

Sort the Contacts List    139

Set ContactListActivity as the Default Activity    141

Set ContactActivity as Default Activity with no

Contacts in Database    142

Summary    143

Exercises    143

7  Maps and Location in Android    145

Location Sensors, Maps, and Fragments    145

Location Sensors    145

Maps    146

Fragments    146

Setting Up for Maps    146

Passing Data Between Controllers    151

Finding Your Location    152

Geocoding: Get Coordinates from an Address    152

Get Coordinates from the GPS Sensor    155

Get Coordinates from Network Sensor    159

Get Coordinates from the Map    161

Displaying Your Contacts’ Locations    164

Summary    170

Exercises    171

8  Access to Hardware and Sensors in Android    173

Sensors, Managers, and Other Hardware    173

Sensors    173

Managers    174

Other Hardware    174

Monitoring the Battery    174

Using Sensors to Create a Compass    177

Using the Phone    181

Using the Camera    183

Summary    189

Exercise    190

Part III  Developing the iOS App    191

9  Using Xcode for iOS Development    193

Creating the Xcode Project    193

Project Settings    196

Creating the User Interface    199

Running the App in the Simulator    200

Adding App Behavior    202

Dismissing the Keyboard    205

App Icons and Launch Images    208

Summary    211

Exercises    211

10  iOS Navigation and Interface Design    213

Views and Controllers    213

View Controller    213

Tab Bar Controller    214

Navigation Controller    215

Creating the Interface    215

Creating the Project    215

Creating the Views    216

Design the Contacts Screen    222

Add Navigation Controller for the Date Screen    226

Activating the Interface    230

Summary    233

Exercises    233

11  Persistent Data in iOS    235

File Data Storage    235

User Defaults    236

Core Data    236

Setting Up Core Data    237

Creating the Project    237

Designing Data Structure    241

Passing Data Between Controllers    243

Saving Data to Core Data    248

Storing the Settings    251

Creating the Settings Interface    252

Working with NSUserDefaults Object    256

Activating the Settings Interface    257

Global Constants    259

Summary    262

Exercises    262

12  Tables in iOS: Navigation and Information

Display    263

Overview of Tables    263

Setting Up Tables    265

Populate the Table with Data    265

Retrieve Data from Core Data    269

Adding Contact Data    272

Display Detailed Data    273

Save Changes to Records    276

Deleting Records    277

Accessory Buttons    280

Alert View    281

Show Subtitles in the Table    285

Sort the Table    285

Summary    288

Exercises    288

13  Maps and Location in iOS    289

Overview of Location and Mapping    289

Hardware and Sensors    289

Core Location    290

MapKit    290

Adding Location Information to the App    291

Finding Location    291

Adding a Map    300

Summary    309

Exercises    309

14  Access to Hardware and Sensors in iOS    311

Getting Device Information    311

Monitoring Battery Status    314

Controlling the Camera    317

Calling a Phone Number    324

Long Press Gesture    324

Adding Long Press to Enabled Text Field    326

Using Core Motion for Accelerometer Data    328

Summary    333

Exercises    333

Part IV  Business Issues    335

15  Monetizing Apps    337

App Monetization Strategies    337

Paid Apps    337

Ad Supported Apps    338

In-App Purchases    340

Understanding the Economics of App Stores    341

Owning Your Own Business    342

Create an LLC    342

Plan Your Business    342

Other Income Possibilities    343

Choosing a Platform    343

Summary    345

Exercises    345

16  Publishing Apps    347

App Distribution Through the App/Play Stores    347

Android Play Store Distribution    348

iOS App Store Distribution    351

App Distribution for the Enterprise    353

Android Enterprise Distribution    353

iOS Enterprise Distribution    354

Testing and Fragmentation    354

Keeping Up with the Platform    356

Summary    356

Exercises    357

Part V  Appendixes    359

A  Installing Eclipse and Setup for Android

Development    361

Setting up Java and Eclipse    361

Download and Install Java SE SDK    362

Downloading Eclipse    363

Installing Eclipse on Windows    363

Installing Eclipse on Mac    365

Installing Android    366

Setting Up the Classroom    369

B  Installing Xcode and Registering Physical

Devices    371

Download and Install Xcode    371

Apple Developer Programs    372

Setting Up the Classroom    373

Deploying Apps to Real Devices    373

Creating Developer Accounts    375

Backing Up the Development Certificate    376

Registering Devices    378

Checking the Development Environment    379

C  Introduction to Objective-C    383

A Brief History of Objective-C    383

Two Languages in One    384

Objects and Classes    385

Properties in Detail    394

Declaring and Calling Methods    396

Inheritance and Protocols    397

Memory Management    398

Index    399

 

 

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ISBN-13: 978-0-13-348957-6

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