This document discusses Android development and provides an agenda covering topics like the Android SDK, Android Studio, core concepts of the SDK API, architecture patterns for Android apps, agile development practices like test-driven development, and frameworks for building games. It also briefly outlines Android history and market share as well as the Android Native Development Kit for building performance-critical parts of apps in C/C++.

1. ANDROID DEVELOPMENT
Paulo Hecht

2. AGENDA
 Android
 Android SDK
 Android ADT
 Android Studio
 Android NDK
 Emuladores
 Publishing
 Core Concepts of SDK API
 Activity
 Intent
 Context
 Resources
 Architecture Patterns
 Agile Development
 Test Driven Development
 HTML5
 Games?
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3. ANDROID
 Open-Source
 Linux Based
 Android Inc. aquired by Google in 2005
 First device released with Android in 2008
 Samsung, Motorola, HTC, LG, etc.
 Mobile Phones, Tablets, Tvs, Ouya
 3034 different devices.
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4. MARKET SHARE
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5. ANDROID SDK
 SDK Manager
 QEMU Emulator
 AVD Manager
 ADB
 Fastboot
 Any IDE
May use Apache Ant
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6. ANDROID ADT
 Eclipse Plugin / Bundle
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7. ANDROID STUDIO
 IntelliJ Idea Community
 Refactoring, Fixes, Multiple Config Preview
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8. ANDROID NDK
 Native Code using C/C++
 Java Native Interface (JNI)
 Android 2.2 Dalvik has a just-in-time compiler
 CPU Intensive applications
 I mean really INTENSIVE…
 Reuse C/C++ code
 Did I mention how INTENSIVE it must be?
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9. EMULADORES
 QEMU
 Virtual Box
 VMware
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10. PUBLISHING
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11. CORE CONCEPTS
 Activity Lifecycle
 The OS is who decides
if your activity will
be closed or not.
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12. CORE CONCEPTS
 Activity
 Single focused thing the user is doing.
 It’s generally a whole window.
 A canvas where you layout the app.
 Now, there are Activity Groups.
 Design for Micro-tasks in mobiles.
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13. CORE CONCEPTS
 Context
 Application Environment
 Language
 Resolution/Density
 Orientation
 Resources
 Strings, Images, Layouts, Colors
 All have specific context
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14. CORE CONCEPTS
 Intent
 Denotes the intention to open another activity.
 Stack another activity in your app.
 Opens a registered Intent:
 Share Something
 Capture a Picture
 Get a Bar/QR Code
 Send a Text
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15. CORE CONCEPTS
 Intent Examples:
 Launch Camera:
Intent cameraIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(cameraIntent, CAMERA_PIC_REQUEST);
 Launch Share:
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, "Text Here");
startActivity(Intent.createChooser(sharingIntent, "Share via"));
 Launch Other Activity:
Intent openActivityIntent = new Intent(getApplicationContext(), NextScreen.class);
startActivity(openActivityIntent);
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16. ARCHITECTURE PATTERNS
 MVC (Model-View-Controller)
 Views are activities
 Controllers are handlers
 Models are domain
objects
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Model
View Controller
show
user input

17. ARCHITECTURE PATTERNS
 MVP (Model-View-Presenter)
 Views are activities.
 Presenters retrieve data,
format, display and receive
events.
 Models are strictly
domain objects.
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Presenter
View
Model

18. AGILE DEVELOPMENT
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19. TTD
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 QUALITY Focus
 Continuous Deployement
 Android testing framework
 Roboelectric
 DDD and BDD

20. HTML5
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 UIView Wrapper (PhoneGape, Titanium)
 Access to sensors
 Some mobile look-and-feel frameworks:
Jquery Mobile Sencha Touch

21. GAMES?
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 AndEngine
 Cocos2D
 Corona SDK
 NME Haxe
 Unity3D
 Unreal