Android™ Development Patterns

316 Pages·2016·15.88 MB·English

by  Phil Dutson

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Android Development
™
Patterns
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Android Development
™
Patterns
Best Practices for
Professional Developers
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Phil Dutson
Boston • C olumbus • I ndianapolis • N ew York • S an Francisco • A msterdam • Cape Town
Dubai • L ondon • M adrid • M ilan • M unich • P aris • M ontreal • Toronto • D elhi
Mexico City • S ão Paulo • Sidney • H ong Kong • Seoul • S ingapore • T aipei • T okyo
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ISBN-13: 978-0-133-92368-1
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First printing: February 2016
❖
To all of those who believe in magic,
especially the digital kind.
❖
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Contents
Preface xiv
1 Development Tools 1
Android Studio 1
Installing Android Studio 2
Using Android Studio 4
Starting a New Project 6
Standalone SDK Tools 9
Android Device Emulation 10
Android Virtual Device 11
GenyMotion 12
Xamarin Android Player 13
Version-Control Systems 14
Subversion 14
Git 14
Mercurial 15 ptg16707593
Summary 15
2 Testing and Debugging 17
Unit Testing 17
Integration Testing 20
Debugging 25
Profiling 25
Tracing 27
Messaging 29
Summary 32
3 Application Structure 33
Manifests 34
Java 36
Res (Resources) 37
Drawable 37
Layout 39
Menu 39
vviiiiii CCoonntteennttss
Values 40
Other Resources 41
Gradle 41
Summary 42
4 Components 45
Intents 45
Intent Filters 46
Broadcast Receivers 47
Activities 48
Creating an Activity 48
Activity Lifecycle 49
Fragments 52
Creating a Fragment 52
Communicating with Fragments 55
Loaders 56
Summary 58
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5 Views 59
The View Class 59
The AnalogClock Subclass 60
The ImageView Subclass 60
The KeyboardView Subclass 60
The MediaRouteButton Subclass 62
The ProgressBar Subclass 62
The Space Subclass 64
The SurfaceView Subclass 64
The TextView Subclass 65
The TextureView Subclass 65
The ViewGroup Subclass 66
The ViewStub Subclass 68
Creating a Custom View 68
Summary 70
Contents iixx
6 Layout 71
Layout Basics 71
Layout Measurements 72
Layout Coordinates 73
Layout Containers 74
Linear Layout 74
Relative Layout 76
Table Layout 79
Frame Layout 80
WebView 82
Summary 83
7 App Widgets 85
App Widget Layouts 86
The AppWidgetProviderInfo Object 88
App Widget Sizing 89
Update Frequency 90
Preview Image 90
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Widget Category 92
Widget Category Layout 92
Resizable Mode 93
Sample AppWidgetProviderInfo Object 93
The AppWidgetProvider Class 94
Application Manifest Entries 96
Summary 97
8 Application Design: Using MVC 99
Model 100
View 101
Controller 102
Working Asynchronously 104
AsyncTask 105
Summary 106