Apps Dev 101 - Bristol Uni

Presentation as part of the Guest lecture series at Bristol University as part of the Computer Science year 2 and Masters

Transcript

1. Apps Dev 101 Bristol Uni: Nov 2014 Scott Alexander-Bown @scottyab Slides: https://speakerdeck.com/scottyab
2. Scott Alexander-Bown •  Senior Developer @intohand (Bath) •  Co-author Android Security Cookbook •  Co-founder SWmobile meetup group ◦  meetup.com/swmobile
3. 101 •  Why I love app dev •  Getting start •  Development •  Ecosystem •  Development environment •  Further reading / resources •  Alternatives to native •  Testing •  Tips •  Building apps •  Getting hired
4. What I love about app development •  App/mobile is now mainstream •  Wearables •  Embedded •  New stuff •  Skills •  Devices •  Yearly update of mobile platforms •  Software that’s used by millions world wide •  No barriers and lots of cloud API’s
5. Fan boy? FYI: That’s not me
6. • Who is your audience? • What problem are you solving? Getting started…
7. Design
8. Sketch it
9. Wire framing
10. App development
11. Focus: iOS & Android
12. Android in 60 seconds •  Open source •  Linux based •  Java •  Permissions •  Resources framework o  i.e build for variety •  Side load apps
13. Fragmentation??? This. Is. Differentiation!!!
14. What I love about Android
15. Development Tools •  Eclipse - Android Developer Tools plugin •  Build system: Ant •  Android Studio •  Build system: Gradle •  Xcode •  *Required* Mac
16. iOS in 60 seconds •  Objective C and Swift •  Mac (Mavericks) •  Xcode •  Storyboards
17. Ecosystem http://www.idc.com/prodserv/smartphone-os-market-share.jsp *Global* Q2 2014: 84.7% Android 11.7% iOS 2.5% Windows 0.5% Blackberry 0.7% other
18. Ecosystem: Playstore •  $25 developer registration fee •  No approval •  Alpha and Beta distribution •  Staggered distribution •  Automated security testing/monitoring •  Alternative app stores
19. Ecosystem: App Store •  $100 yearly developer fee •  Approval (not as bad as people say) •  Walled garden •  Beta (via Test flight) •  Paid apps do better
20. Getting help / further reading •  Android docs, training & samples •  Androiddevweekly.com •  Videos o  Android course (Udacity - ud853) o  DevBytes (YouTube) o  ADiA (YouTube) o  Google IO (YouTube) •  Busy coders guide to Android o  by Mark Murphy
21. Getting help / further reading •  iOS docs, training & samples •  http://developer.apple.com •  https://developer.apple.com/swift/blog •  Stanford iOS course •  WWDC videos
22. Alternatives to Native
23. •  Mobile web / Responsive web •  Cross platform •  PhoneGap / Cordova •  Html 5/js/css wrapped in web view •  Plugins (camera, gps etc) •  Xamarin (free for students) •  C# •  Compiled to Native Alternatives to Native
24. Testing •  3G and Wifi •  Use emulators •  But use real devices •  Beta test •  Friends •  Family •  Helpful customers
25. Testing •  Hardware o  Last year flagship •  Emulator o  GenyMotion.com •  Services o  Errorlytics - Crashlytics o  Crowd source bug testing - UTest.com o  Cloud based UI testing - TestDroid.com
26. Moto G
27. •  Who is your audience? •  What problem are you solving? •  Wire frame before coding •  Lock to portrait •  Invest in quality app icon (elance, odesk etc) •  Beta test on friends/family •  Integrate Crashlytics and Analytics (i.e Flurry) Wrap up and tips …
28. Tip: Open source community
29. Tip: Backend as a Service •  Login with facebook and/or Twitter •  User management •  Data storage o  save and sync data objects o  files (large files) •  Analytics •  Push messaging
30. Tip: watch out for…
31. Tip: Keep it simple
32. Thanks for listening CC BY-SA 2.0 Kris Krug
33. Q&A | Contact | Feedback •  Slides: https://speakerdeck.com/scottyab •  dev@scottyab.com •  meetup.com/swmobile •  github/scottyab •  @scottyab
34. How to get hired (IMO) •  Enthusiasm for mobile (and development) •  Example work (no excuses) •  Uni project •  Hack-a-thon •  Contribute to community •  Stackoverflow •  Github •  No bullshit!
35. Android Win o  Device choice o  Customisation o  True background tasks o  NFC o  Resources framework iOS Win •  Limited devices •  UI consistency •  Users upgrade to latest OS •  Clients, Managers, Designers have/ know them •  Paid apps do better Vs iOS