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Android Development in 2019. #devFestDakar
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Souleymane Sidibe
December 14, 2019
Programming
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87
Android Development in 2019. #devFestDakar
It's all about the tools we can use to build better android apps.
Souleymane Sidibe
December 14, 2019
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Transcript
About me •Souleymane Sidibé •Kotlin/Android dev •Android developer CoinAfrique •Developer
of KobiriApp •@soulesidibe
Android development in 2019 @soulesidibe 2
The purpose of this talk
The purpose of this talk • The tools • How
we build android apps • Is it worth it to build native apps • ⤴ Flutter, Ionic, React native ⤴ = native apps
Numbers
Numbers • Android 1.0 (Relese date 2008) • Android 2.3
(Relese date 2011) Gingerbread • Android 10 (2019) Source: Statcounter
Numbers • 76% of the Mobile Operating system market share.
Worldwide • 83% of Africa Market share • 90% of Senegal Market share • 40% of OS market share behind Windows. Source: Statcounter
Numbers • The most popular OS in Africa • The
most accessible OS (cheap phones) • An open OS • Millions of apps available
Build an android App
Basic tools
Build an android App Compatible with Java Great Tooling Null
Safety Easy to learn Coroutines Java is not dead yet Type inference
Build an android App
Build an android App
Build an android App
Build an android App Android App Bundle Dynamic Feature Instant
App Play Console Internal Test
And so many more…
Architecture A style and method of design and construction.
Architecture • Onboarding new devs is easier • Focus on
the feature not on the plumbing • The team speak the same language • Write testable code • Team size: 1+
Architecture • Old Android (XML Activity) • MVP (Model View
Presenter) • MVVM (Model View ViewModel)
Google Opinion
Testing
Test • FOR ME • UI Testing is mandatory •
Unit testing is good • 100% coverage means nothing
Test • Unit Testing(Junit, Mockito, etc) • UI Testing (Espresso,
Robolectric) • Firebase Test Lab
Wrap up
Wrap up • Native android development is stable • Still
evolving • Huge community(Conferences, open source, libraries) • At scale, “native is best”
Alternatives
Alternatives • React Native(js) • Ionic(js) • Flutter(dart)
Pros • One code base/one team • Well known web
technologies • Easy to find talented devs
Cons • One code base but 2 targets • Javascript
• Some native features not available for both android and IOS
Conclusion • Android for life! • But Flutter is really
great • Learn both!
Thanks!