C2M - Mobile App Design

This presentation was used in episode 4 of Pune Mobile Developer's C2M (Concept to market) mobile meetup series.

Pune Mobile Developers: https://www.meetup.com/Pune-Mobile-Developers/
Event page: https://www.meetup.com/Pune-Mobile-Developers/events/251232545/
Recording of the event: https://youtu.be/-AimZpphkQM

Transcript

1. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. C2M – App Design MVP and implementation - Kaushal Dhruw (@drulabs)
2. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 2 Guidelines • Cell phones in silent mode • No ungentlemanly conduct please – No abuse of Wi-Fi or other resources – Respect fellow members • Suggestions are welcome • It is an open session, ask your questions anytime, unless specified otherwise.
3. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 3 Pune Mobile Developers • Started in August 2013. Part of Google Developer Communities since Jan 2017 • “Increase awareness of fast growing mobile technology among Developers” • Currently has around ~4900 members • 38 meetups so far
4. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 4 Announcements • Volunteers • Collaborative projects 4
5. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 5 Introduction • Why x-platform mobile app development? • Why NOT… – Flutter, Xamarin, React Native etc.? – Hybrid apps? – Android architecture components?
6. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 6 C2M meetup series • Cover all the phases of app development. • Learn the 2 dominating players in the market. • Create same app on Android and iOS (in parts). • Take your first step towards becoming complete mobile developer. • Learn from the community. 6
7. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 7 Contents • Basics revisited • MVP revisited • UI • Implementing Model • Implementing View and Presenter • Testing the View with dummy data • Conclusion 7
8. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 8 Basics • D d = new D() ? • C c = new C() ? • A a = new A(){…} – anonymous? • B b = new B() ? • B b = new B() {…} - anonymous? • D d = new C() ? • C c = new D() ? • X x = new C(), x = new D()? • A a = new D(), C c = a? • B b = new C(), X x = b?
9. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 9 I will do it my way One activity / view controller will do everything The cleanest code ever 9
10. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 10 What is this code doing here? Did I really write this? After some time
11. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 11 Put everything in one class?? Do not put everything in one class, it makes the code: • Spaghetti • Tightly coupled • Hard to read, maintain and unit test • Error prone • Difficult to debug
12. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 12 SOLID Principles 5 design principles intended to make software designs more understandable, flexible and maintainable • S – Single Responsibility Principle • O – Open / Closed Principle • L – Liskov Substitution Principle • I – Interface Segregation Principle • D – Dependency Inversion Principle
13. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 13 The MVP pattern 13
14. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 14 The MVP pattern 14
15. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 15 The MVP pattern 15
16. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 16 Enough theories lets code 16
17. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 17 MVP in Android App 17
18. Copyright © 2016 Talentica Software (I) Pvt Ltd. All rights reserved. Copyright ©2016 Talentica Software (I) Pvt Ltd. All rights reserved. 18