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E-raamat: Android Recipes: A Problem-Solution Approach

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Dave Smith, Erik Hellman

Formaat: PDF+DRM
Ilmumisaeg: 07-Dec-2016
Kirjastus: APress
Keel: eng
ISBN-13: 9781484222591

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Formaat: PDF+DRM
Ilmumisaeg: 07-Dec-2016
Kirjastus: APress
Keel: eng
ISBN-13: 9781484222591

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This book offers more than 100 down-to-earth code recipes, and guides you step-by-step through a wide range of useful topics using complete and real-world working code examples. It is updated to include the Android N SDK (7.0) , as well as earlier releases.

Instead of abstract descriptions of complex concepts, in Android Recipes, you'll find live code examples. When you start a new project you can consider copying and pasting the code and configuration files from this book and then modifying them for your own customization needs.

Crammed with insightful instruction and helpful examples, this fourth edition of Android Recipes is your guide to writing apps for one of today’s hottest mobile platforms. It offers pragmatic advice that will help you get the job done quickly and well. This can save you a great deal of work over creating a project from scratch!

Android continues to be one of the leading mobile OS and development platforms driving today's mobile innovations and the apps ecosystem. Android appears complex, but offers a variety of organized development kits to those coming into Android with differing programming language skill sets.

What you'll learn

Code for Android smartphones and tablets
Use external libraries to save time and effort
Boost app performance by using the Android NDK and RenderScript
Design apps for performance, responsiveness, and seamlessness
Send data between devices and other external hardware
Persist application data and share it between applications
Capture and play back various device media items
Communicate with web services
Get the most out of your user interface

Who is this book for

This book is a handy reference for all Android app developers.

About the Authors

xxiii

About the Technical Reviewer

xxv

Acknowledgments

xxvii

Introduction

xxix

Chapter 1 Layouts and Views

(84)

1-1 Styling Common Components

(9)

Problem

(1)

Solution

(1)

How it Works

(9)

1-2 Toggling System UI Elements

(4)

Problem

(1)

Solution

(1)

How It Works

(3)

1-3 Creating and Displaying Views

(6)

Problem

(1)

Solution

(1)

How It Works

(6)

1-4 Animating a View

(6)

Problem

(1)

Solution

(1)

How ft Works

(5)

1-5 Animating Layout Changes

(3)

Problem

(1)

Solution

(1)

How It Works

(3)

1-6 Implementing Situation-Specific Layouts

(9)

Problem

(1)

Solution

(1)

How It Works

(8)

1-7 Placing Text over Images

(1)

Problem

(1)

Solution

(1)

1-8 Making Extensible Collection Views

(12)

Problem

(1)

Solution

(1)

How It Works

(11)

1-9 Customizing Empty Lists

(2)

Problem

(1)

Solution

(1)

How It Works

(2)

1-10 Using CardView in RecyclerView

(4)

Problem

(1)

Solution

(1)

How It Works

(3)

1-11 Making RecyclerView Section Headers

(3)

Problem

(1)

Solution

(1)

How It Works

(2)

1-12 Creating Compound Controls

(4)

Problem

(1)

Solution

(1)

How It Works

(3)

1-13 Customizing Transition Animations

(10)

Problem

(1)

Solution

(1)

How It Works

(10)

1-14 Creating View Transformations

(6)

Problem

(1)

Solution

(1)

How it Works

(6)

1-15 Using Android Data Bindings

(4)

Problem

(1)

Solution

(1)

How It Works

(4)

Summary

(1)

Chapter 2 User Interaction Recipes

(104)

2-1 Leveraging the Action Bar

(8)

Problem

(1)

Solution

(1)

How It Works

(7)

2-2 Locking Activity Orientation

(1)

Problem

(1)

Solution

(1)

How It Works

(1)

2-3 Performing Dynamic Orientation Locking

(2)

Problem

(1)

Solution

(1)

How It Works

(2)

2-4 Manually Handling Rotation

(3)

Problem

(1)

Solution

(1)

How It Works

(2)

2-5 Creating Contextual Actions

(6)

Problem

(1)

Solution

100

(1)

How It Works

100

(5)

2-6 Displaying a User Dialog Box

105

(6)

Problem

105

(1)

Solution

105

(1)

How It Works

105

(6)

2-7 Customizing Menus and Actions

111

(5)

Problem

111

(1)

Solution

111

(1)

How It Works

111

(5)

2-8 Customizing BACK Behavior

116

(4)

Problem

116

(1)

Solution

116

(1)

How It Works

117

(3)

2-9 Emulating the HOME Button

120

(1)

Problem

120

(1)

Solution

120

(1)

How It Works

120

(1)

2-10 Monitoring TextView Changes

120

(3)

Problem

120

(1)

Solution

121

(1)

How It Works

121

(2)

2-11 Customizing Keyboard Actions

123

(3)

Problem

123

(1)

Solution

124

(1)

How It Works

124

(2)

2-12 Dismissing the Soft Keyboard

126

(1)

Problem

126

(1)

Solution

127

(1)

How It Works

127

(1)

2-13 Handling Complex Touch Events

127

(17)

Problem

127

(1)

Solution

127

(1)

How It Works

128

(16)

2-14 Forwarding Touch Events

144

(5)

Problem

144

(1)

Solution

144

(1)

How It Works

145

(4)

2-15 Blocking Touch Thieves

149

(4)

Problem

149

(1)

Solution

150

(1)

How It Works

150

(3)

2-16 Making Drag-and-Drop Views

153

(8)

Problem

153

(1)

Solution

153

(1)

How It Works

154

(7)

2-17 Using the Material Design Navigation Drawer

161

(8)

Problem

161

(1)

Solution

161

(1)

How It Works

161

(8)

2-18 Swiping Between Views

169

(11)

Problem

169

(1)

Solution

169

(1)

How It Works

170

(10)

2-19 Navigating with Tabs

180

(3)

Problem

180

(1)

Solution

180

(1)

How It Works

180

(3)

2-20 Actionable User Feedback Using Snackbar

183

(5)

Problem

183

(1)

Solution

183

(1)

How It Works

184

(4)

Summary

188

(1)

Chapter 3 Communications and Networking

189

(70)

3-1 Displaying Web Information

189

(5)

Problem

189

(1)

Solution

189

(1)

How It Works

189

(5)

3-2 Intercepting WebView Events

194

(2)

Problem

194

(1)

Solution

194

(1)

How It Works

195

(1)

3-3 Accessing WebView with JavaScript

196

(3)

Problem

196

(1)

Solution

196

(1)

How It Works

196

(3)

3-4 Displaying Online Images

199

(2)

Problem

199

(1)

Solution

199

(1)

How It Works

199

(2)

3-5 Downloading Completely in the Background

201

(4)

Problem

201

(1)

Solution

201

(1)

How It Works

201

(4)

3-6 Accessing a REST API

205

(7)

Problem

205

(1)

Solution

205

(1)

How It Works

205

(7)

3-7 Parsing JSON

212

(4)

Problem

212

(1)

Solution

212

(1)

How It Works

212

(4)

3-8 Parsing XML

216

(4)

Problem

216

(1)

Solution

216

(1)

How It Works

216

(4)

3-9 Receiving SMS

220

(3)

Problem

220

(1)

Solution

220

(1)

How It Works

220

(3)

3-10 Sending an SMS Message

223

(3)

Problem

223

(1)

Solution

223

(1)

How It Works

224

(2)

3-11 Communicating over Bluetooth

226

(9)

Problem

226

(1)

Solution

226

(1)

How It Works

226

(9)

3-12 Querying Network Reachability

235

(2)

Problem

235

(1)

Solution

235

(1)

How It Works

235

(2)

3-13 Transferring Data with NFC

237

(8)

Problem

237

(1)

Solution

238

(1)

How It Works

238

(7)

3-14 Connecting over USB

245

(10)

Problem

245

(1)

Solution

246

(1)

How It Works

246

(9)

3-15 Scanning for Bluetooth Low Energy beacons

255

(3)

Problem

255

(1)

Solution

255

(1)

How It Works

256

(2)

Summary

258

(1)

Chapter 4 Interacting with Device Hardware and Media

259

(108)

4-1 Integrating Device Location

259

(7)

Problem

259

(1)

Solution

259

(1)

How It Works

260

(6)

4-2 Mapping Locations

266

(9)

Problem

266

(1)

Solution

266

(3)

How It Works

269

(6)

4-3 Annotating Maps

275

(16)

Problem

275

(1)

Solution

275

(1)

How It Works

275

(16)

4-4 Monitoring Location Regions

291

(10)

Problem

291

(1)

Solution

292

(1)

How It Works

292

(9)

4-5 Capturing Images and Video

301

(6)

Problem

301

(1)

Solution

301

(1)

How It Works

301

(6)

4-6 Making a Custom Camera Overlay

307

(6)

Problem

307

(1)

Solution

307

(1)

How It Works

307

(6)

4-7 Recording Audio

313

(3)

Problem

313

(1)

Solution

313

(1)

How It Works

314

(2)

4-8 Capturing Custom Video

316

(4)

Problems

316

(1)

Solution

316

(1)

How It Works

316

(4)

4-9 Adding Speech Recognition

320

(3)

Problem

320

(1)

Solution

320

(1)

How It Works

321

(2)

4-10 Playing Back AudioNideo

323

(8)

Problem

323

(1)

Solution

323

(1)

How It Works

323

(8)

4-11 Playing Sound Effects

331

(3)

Problem

331

(1)

Solution

331

(1)

How It Works

332

(2)

4-12 Creating a Tilt Monitor

334

(4)

Problem

334

(1)

Solution

334

(1)

How It Works

334

(4)

4-13 Monitoring Compass Orientation

338

(4)

Problem

338

(1)

Solution

338

(1)

How It Works

339

(3)

4-14 Retrieving Metadata from Media Content

342

(4)

Problem

342

(1)

Solution

342

(1)

How It Works

342

(4)

4-15 Detecting User Motion

346

(11)

Problem

346

(1)

Solution

346

(1)

How It Works

347

(10)

4-16 Making Applications Context Aware

357

(5)

Problem

357

(1)

Solution

357

(5)

4-17 Authenticating Users Using Fingerprint Reader

362

(2)

Problem

362

(1)

Solution

362

(2)

4-18 Scanning QR Codes Using Vision API

364

(2)

Problem

364

(1)

Solution

364

(2)

Summary

366

(1)

Chapter 5 Persisting Data

367

(76)

5-1 Making a Preference Screen

367

(6)

Problem

367

(1)

Solution

367

(1)

How It Works

367

(6)

5-2 Displaying Custom Preferences

373

(6)

Problem

373

(1)

Solution

373

(1)

How It Works

374

(5)

5-3 Persisting Simple Data

379

(4)

Problem

379

(1)

Solution

379

(1)

How It Works

379

(4)

5-4 Reading and Writing Files

383

(8)

Problem

383

(1)

Solution

383

(1)

How It Works

384

(7)

5-5 Using Files as Resources

391

(2)

Problem

391

(1)

Solution

391

(1)

How It Works

391

(2)

5-6 Managing a Database

393

(5)

Problem

393

(1)

Solution

393

(1)

How It Works

393

(5)

5-7 Querying a Database

398

(2)

Problem

398

(1)

Solution

398

(1)

How It Works

399

(1)

5-8 Backing Up Data

400

(4)

Problem

400

(1)

Solution

400

(1)

How It Works

400

(4)

5-9 Sharing Your Database

404

(8)

Problem

404

(1)

Solution

405

(1)

How It Works

405

(7)

5-10 Sharing Your SharedPreferences

412

(9)

Problem

412

(1)

Solution

412

(1)

How It Works

413

(8)

5-11 Sharing Your Other Data

421

(7)

Problem

421

(1)

Solution

421

(1)

How It Works

422

(6)

5-12 Integrating With System Documents

428

(14)

Problem

428

(1)

Solution

428

(1)

How It Works

429

(13)

Summary

442

(1)

Chapter 6 Interacting with the System

443

(142)

6-1 Notifying from the Background

443

(23)

Problem

443

(1)

Solution

443

(1)

How It Works

443

(23)

6-2 Creating limed and Periodic Tasks

466

(2)

Problem

466

(1)

Solution

466

(1)

How It Works

466

(2)

6-3 Scheduling a Periodic Task

468

(8)

Problem

468

(1)

Solution

468

(1)

How It Works

469

(7)

6-4 Creating Sticky Operations

476

(5)

Problem

476

(1)

Solution

476

(1)

How It Works

477

(4)

6-5 Running Persistent Background Operations

481

(7)

Problem

481

(1)

Solution

481

(1)

How It Works

481

(7)

6-6 Launching Other Applications

488

(4)

Problem

488

(1)

Solution

488

(1)

How ft Works

488

(4)

6-7 Launching System Applications

492

(4)

Problem

492

(1)

Solution

492

(1)

How ft Works

492

(4)

6-8 Letting Other Applications Launch Your Application

496

(3)

Problem

496

(1)

Solution

496

(1)

How It Works

497

(2)

6-9 Interacting with Contacts

499

(8)

Problem

499

(1)

Solution

499

(1)

How ft Works

499

(8)

6-10 Reading Device Media and Documents

507

(4)

Problem

507

(1)

Solution

507

(1)

How It Works

508

(3)

6-11 Saving Device Media and Documents

511

(5)

Problem

511

(1)

Solution

511

(1)

How It Works

512

(4)

6-12 Reading Messaging Data

516

(12)

Problem

516

(1)

Solution

516

(2)

How It Works

518

(10)

6-13 Interacting with the Calendar

528

(6)

Problem

528

(1)

Solution

528

(1)

How It Works

528

(6)

6-14 Logging Code Execution

534

(3)

Problem

534

(1)

Solution

534

(1)

How It Works

534

(3)

6-15 Creating a Background Worker

537

(4)

Problem

537

(1)

Solution

537

(1)

How It Works

537

(4)

6-16 Customizing the Task Stack

541

(8)

Problem

541

(1)

Solution

541

(1)

How It Works

542

(7)

6-17 Implementing AppWidgets

549

(21)

Problem

549

(1)

Solution

549

(1)

How It Works

550

(20)

6-18 Supporting Restricted Profiles

570

(14)

Problem

570

(1)

Solution

570

(1)

How It Works

571

(13)

Summary

584

(1)

Chapter 7 Graphics and Drawing

585

(70)

7-1 Creating Drawables as Backgrounds

585

(8)

Problem

585

(1)

Solution

585

(1)

How It Works

586

(7)

7-2 Creating Custom State Drawables

593

(5)

Problem

593

(1)

Solution

593

(1)

How It Works

593

(5)

7-3 Applying Masks to Images

598

(11)

Problem

598

(1)

Solution

598

(1)

How It Works w

599

(10)

7-4 Drawing over View Content

609

(16)

Problem

609

(1)

Solution

609

(1)

How tt Works

610

(15)

7-5 High-Performance Drawing

625

(12)

Problem

625

(1)

Solution

626

(1)

How It Works

626

(11)

7-6 Custom Drawables

637

(2)

Problem

637

(1)

Solution

637

(1)

How It Works

637

(2)

7-7 Tinting Drawable Elements

639

(5)

Problem

639

(1)

Solution

639

(1)

How It Works

639

(5)

7-8 Using Scalable Vector Assets

644

(9)

Problem

644

(1)

Solution

644

(1)

How It Works

645

(8)

Summary

653

(2)

Chapter 8 Working with Android NDK and RenderScript

655

(44)

Android NDK

655

(3)

8-1 Adding Native Bits with JNI

658

(7)

Problem

658

(1)

Solution

658

(1)

How It Works

659

(6)

8-2 Building a Purely Native Activity

665

(9)

Problem

665

(1)

Solution

665

(1)

How It Works

666

(8)

RenderScript

674

(2)

Using the RenderScript Support Package

675

(1)

8-3 Filtering Images with RenderScript

676

(5)

Problem

676

(1)

Solution

676

(1)

How It Works

676

(5)

8-4 Manipulating Images with RenderScript

681

(6)

Problem

681

(1)

Solution

681

(1)

How It Works

681

(6)

8-5 Faking Translucent Overlays with Blur

687

(10)

Problem

687

(1)

Solution

687

(1)

How It Works

688

(9)

Summary

697

(2)

Index

699

Dave Smith is a professional engineer developing hardware and software for mobile and embedded platforms. Dave's engineering efforts are currently focused full-time on Android and iOS development. Since 2009, Dave has worked on developing at all levels of the Android platform, from writing user applications using the software development kit, to building and customizing the Android source code.

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E-raamat: Android Recipes: A Problem-Solution Approach

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