Demo class on android development
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Demo Class On Android Development. Requirements and advantages
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Demo class on android development
- 1. DEMO CLASS ON ANDROID APP DEVELOPMENT Kshitiz Mishra Intaglio Solution
- 2. About the Speaker • Computer Engineering, LEC • Android Developer having nearly 2 years of experience • Experience with building ROMs,customization,porting • Experience with Other Platforms(Windows Metro Apps) @kr4k3rz fb.com/kr4k3rz github.com/xitize +xitize
- 3. o What is Android o Scope for Android App Developers o Why Develop for Android o Android Platform Overview o Android App Overview o Android App Lifecycle o Android App Fundamentals(Activities , intents) o Design o Device Compatibility o Distribution o What we need to get started with Android Development o Android Studio and Android Tools o Android Syllabus What we will learn Today
- 4. What is Android? • Android is a Linux based operating System for mobile devices such as tablet ,televisions, auto, wears. • Developed by Google and Later OHA(Open Handset Alliance). • Java language is mainly used, XML for UI(User Interface) • Codenamed Aestro,Blender,Cupcake,Donut,Éclair,Froyo,Gingerbread, HoneyComb,Ice Cream Sandwich ,Jellybean ,Kitkat ,Lollipop, & Latest Marshmallow
- 5. Scope Of Android “Mobile App Development is the Future of Software Development” – Eric Schmidt (Alphabet's Executive Chairman) People demand for better application and Update Android being Open Source attracts Companies. Demand is high for inventive App developers.
- 6. Reasons to choose Android Development High user Base Multi-Fold increase in app development No licensing Fees Cross – Platform Compatibility. Flexibility High demand for Android Developers Support for Android Development Easy accessibility High Earning Potential Monetization of free apps
- 8. o Over 1B users o Over 1.5M activation per Day o Over 200M smartphones running android Sold annually o Over 1.43M apps available o Over 76% smartphones operating system market share Android is Gigantic
- 9. Android is Freedom o Thousands of 3rd party libraries available o Free SDK,IDE and Emulator o No restrictions; access anything* o Faster Access to form factors and hardware's o Distribute your apps anywhere( Playstore , Amazon Appstore ,… *well not everything, but you get the point
- 10. Reason Why Android Development will Boom in Tech-Future Smartphone market share Android app Development revenue Options to target different markets segment Android preferred choice in emerging economies.
- 12. o java: class file contain app logic o res: different resource file o anim: Animation resource file o drawble: Images o drawable-xdpi: image depending on screen density o layout: app layout files o menu : layout menu files o values : value files (strings ,colors , arrays , etc.) o value-vx : depending of API levels o values-xdp : Value files depending on screen density o XML: xml UI o andriodmanifest.xml : App metadata file o Build.gradle:build related settings Android App Overview
- 16. Activity
- 17. o A windows/interface which a user interact with o Every app has at least one activity o Activities can be full screen , floating or embedded Inside another activity startActivity(new Intent(this,newActivity.class));
- 18. Fragments
- 19. o A piece of user interface mean to be reused o Adds modularity to your app and makes dynamic UI design easy o It has its own layout, behavior and lifecycle callbacks, but it killed/stop if the activity is too. getFragmentManager().beginTransaction(). add(android.R.id.content,new MyFragment()).commit();
- 20. o INTENT o DESIGN o COMPATIBILITY o DISTRIBUTION
- 21. What you need to build an android app?
- 22. o Java Programming Language and XML o Android SDK and SDK tools o Android Studio o Emulator
- 23. SYLLABUS
- 25. THANK YOU
Editor's Notes
- 1. Linux Kernel – heart of Android architecture , exits at root of android. Kernel is responsible for device ,drivers, power management, memory management, device management & resources access. 2.Native Libraries – On top of Linux Kernel , such as Webkit(Browsers support),OpenGL(Graphics supports),FreeType(Font Support),SQLite(Database Support),Media (for playing recording),C runtime library(libc),etc. 3.Android Runtime – In android Runtime ART core libraries & DVM (Dalvik Virtual Machine) optimized for mobile devices. It consumes less memory & provides faster performance. 4.Application Framework – Android APIs such as UI(user Interface),telephony , resources ,locations, Content Providers(Data), and Package manager. It provides classes and interfaces for android app development. 5.Applications – home ,contacts, settings.
- onCreate() – This is the first callback and called when the activity is first created. onStart() – This callback is called when the activity becomes visible to the user. onResume() – This is called when the user starts interacting with the application. Onpause() – The paused activity does not receive user input and cannot execute any code and called when the current activity is being paused and the previous activity is being resumed. onStop() – This callback is called when the activity is no longer visible. onDestroy() – This callback is called before the activity is destroyed by the system. onRestart() – This callback is called when the activity restarts after stopping it.