Android application development
Download as PPT, PDF0 likes84 views
This document outlines a tutorial-driven course on Android application development, covering basic and advanced Java programming, mobile application development concepts, and the Android platform architecture. It introduces core components such as activities, intent receivers, services, and content providers, while providing resources like the 'Hello, Android' textbook and development tools including Eclipse and the Android SDK. Key topics include application building blocks, development lifecycle, and interaction mechanisms such as notifications and messaging services.
Android application development
- 1. Android Application Development A Tutorial Driven Course By: ZEESHAN ALAM KHAN(MCA-2015, AMU)
- 2. Java • Basic Java programming – Exceptions – Inner Class, Interface • Advanced topics we will touch: – Java IO – Java Thread – Java Socket
- 3. Android BasicsAndroid Basics Credit goes to Google!
- 4. Course Objectives • Mobile Application Development (MAD) • Intro to Android platform • Platform architecture • Application building blocks • Development tools • Textbook: Hello, Android
- 5. Few reasons to go MAD… • Smart Phones – Internet access anywhere – Social networking • Millions of mobile users • Open standards
- 6. Introduction to Android • Open software platform for mobile development • A complete stack – OS, Middleware, Applications • An Open Handset Alliance (OHA) project • Powered by Linux operating system • Fast application development in Java • Open source under the Apache 2 license
- 8. Linux Kernel • Works as a HAL • Device drivers • Memory management • Process management • Networking
- 9. Libraries • C/C++ libraries • Interface through Java • Surface manager – Handling UI Windows • 2D and 3D graphics • Media codecs, SQLite, Browser engine
- 10. Android Runtime • Dalvik VM – Dex files – Compact and efficient than class files – Limited memory and battery power • Core Libraries – Java 5 Std edition – Collections, I/O etc…
- 11. Application Framework • API interface • Activity manager – manages application life cycle.
- 12. Applications • Built in and user apps • Can replace built in apps
- 13. Course Objectives • Mobile Application Development (MAD) • Intro to Android platform • Platform architecture • Application building blocks • Development tools • Textbook: Hello, Android
- 14. Application Building Blocks • Activity • IntentReceiver • Service • ContentProvider
- 15. Activities • Typically correspond to one UI screen • But, they can: – Be faceless – Be in a floating window – Return a value
- 16. IntentReceivers • Components that respond to broadcast ‘Intents’ • Way to respond to external notification or alarms • Apps can invent and broadcast their own Intent
- 17. Intents • Think of Intents as a verb and object; a description of what you want done – E.g. VIEW, CALL, PLAY etc.. • System matches Intent with Activity that can best provide the service • Activities and IntentReceivers describe what Intents they can service
- 18. Intents GMail Contacts Home Blogger Chat Client component makes a request for a specific action “Pick photo” System picks best component for that action New components can use existing functionality Blogger Photo Gallery
- 19. Services • Faceless components that run in the background – E.g. music player, network download etc…
- 20. ContentProviders • Enables sharing of data across applications – E.g. address book, photo gallery • Provides uniform APIs for: – querying – delete, update and insert. • Content is represented by URI and MIME type
- 21. Course Objectives • Mobile Application Development (MAD) • Intro to Android platform • Platform architecture • Application building blocks • Development tools • Textbook: Hello, Android
- 22. Development Tools • Eclipse • Android SDK 2.0 or higher developer.android.com
- 23. The Emulator • QEMU-based ARM emulator • Runs the same image as the device • Limitations: – No Camera support
- 24. Devices
- 25. Hello World • A great starting point: http://developer.android.com/guide/tutorial s/hello-world.html • Generating UIs – Views – building blocks – E.g. TextView, EditText, Button – Placed into Layouts – E.g. LinearLayout, TableLayout, AbsoluteLayout
- 26. Application Lifecycle • Application run in their own processes (VM, PID) • Processes are started and stopped as needed to run an application's components • Processes may be killed to reclaim resources
- 28. Lifecycle • System Process GMail Contacts Home • Home • Mail • Browser • Map
- 29. Location Manager
- 30. XMPP Services • Allows any app to send device-to-device messages to other android users • Data Messages are Intents with name/value pairs • Works with any gmail account… • Can also build servers to deliver server-to- device messages
- 32. Notification Manager • How background app interact with users • Consistent notification presentation
- 33. Views
- 34. Views
- 35. Location Manager
- 36. End of Lecture • First task, install the SDK and Eclipse for instructions detailed in Assignment #1 • Will be performed in class as well.