Making Production Ready Android App

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theDroidLady Making your App Production ready. Let’s make it easy for you.

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theDroidLady Agenda • Architecture • MVP vs Update Release • Release Checklist • Understanding Play Console • My Recommendations • Things I wish I knew :)

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theDroidLady Architecture 01.

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theDroidLady Excuses 🤷 • We don’t need an architecture. • Don’t have enough time for architecture. • We are a lean team.

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theDroidLady Credits : DesignCrowd

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theDroidLady App Architecture 01.2

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theDroidLady Without Packaging With Packaging

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theDroidLady Few things to better understand • Language & Platform Agnostic Clean Code & S.O.L.I.D Principles

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theDroidLady Few things to better understand • Language & Platform Agnostic • Improves Changeability • Learn when it is important and essential both.

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theDroidLady MVP vs Update Release 02.

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theDroidLady MVP (Minimum Viable Product)

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theDroidLady Update Release.

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theDroidLady MVP How we do things?

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theDroidLady How we do things? • No architecture • Ship it fast. • Use 3rd party libraries/frameworks. • Get the market fit.

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theDroidLady Update Release Make your Product scalable.

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theDroidLady Make your Product scalable. • Migrate app to proper architecture. • Use design pattern. • Start Minimizing resources. • Have a proper planning.

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theDroidLady Release Checklist 03.

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theDroidLady Release Checklist : 03.2 101

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theDroidLady Add proper comments. !!/** * @param input * @return SomeRandomOutput !*/ fun doSomeCalculation(input:Int) : SomeRandomOutput { !//do your task here }

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theDroidLady Convert your images to SVG/WebP JPEG / PNG SVGs WebP ~ 300 KB ~ 5 KB ~ 30-40 KB

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theDroidLady Convert your images to SVG/WebP

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theDroidLady Using Lint checks

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theDroidLady Others. • Optimize imports • Reorganize code “ Use macros to club both of them together ” • Handle permissions

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theDroidLady Use Macros

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theDroidLady Use Macros Credits: Easy Read

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theDroidLady Release Checklist : 03.2 201

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theDroidLady Start analyzing 3rd party libs •Use the ones with more community support. •Check for maximum number of stars on GitHub. •Try to use open-source libs more. •Try to extract/use the feature you need.

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theDroidLady Implementation vs debugImplementation debugImplementation ‘com.squareup.leakcanary:leakcanary-android:X.X’ implementation 'com.squareup.retrofit2:retrofit:X.X.X'

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theDroidLady Variants & Flavors. public class ConfigBuilder { public static Config getConfig() { switch (BuildConfig.FLAVOR){ case BuildConstants.PROD: case BuildConstants.PROD_KITKAT: return new ProdConfig(); default: return new DevConfig(); } } }

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theDroidLady Variants & Flavors. public class ProdConfig implements Config { @Override public String getHostUrl(){ return HOST; } @Override public String getApiHostUrl() { return API_HOST; } @Override public String getReportErrorUrl() { return REPORT_ERROR; } } Same would be there for other configs

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theDroidLady Error handling. when(exception){ is UnAuthorizedException !-> !// Show an Un-Auth message is ArithmeticException !-> !// Show that specific message else !-> toast("Something went wrong!") }

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theDroidLady • Reviewing crash logs from your crashlytics services. • Write Proguard rules where you need obfuscation, optimisation and shrinking.

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theDroidLady Release Checklist : 03.3 301

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theDroidLady Versioning versionName “Major.Minor.Patch” Check this out for more info: https://semver.org/

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theDroidLady Generate release build.

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theDroidLady • Sharing with QA Team using distribution channel like Firebase.

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theDroidLady Analyze APK Credits : riggaroo.dev

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theDroidLady Connect your project using CI/CD pipeline Credits : Medium

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theDroidLady • Attach additional task like lint checks, optimizing imports etc. in your pre-commit. • Push to Play Store.

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theDroidLady Understanding Play Console 04.

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theDroidLady Understanding KPIs

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theDroidLady Crashes & ANRs.

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theDroidLady Understanding Android Vitals

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theDroidLady Vitals

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theDroidLady Vitals

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theDroidLady Staged Rollout

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theDroidLady • Alpha/Beta Testing • Open & Internal Testing • Publishing to the user

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theDroidLady My Recommendations 05.

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theDroidLady Recommendations. • Choose a friendly architecture. • Try to keep your code modular. • Write Readable code. • Be careful with what you declare in Manifest. • Keep regular committing and raise smaller PRs. • Have pre-commit checks. • Work on Multiple Build Variants • Keep an eye on 3rd party libraries. • Handle Error gracefully. • Test, Test & Test. • Deployment & Distribution pipeline.

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“ If you are ordering food from outside everyday, it is worth getting a premium membership to a food delivery service. You don’t want to be paying recurring delivery charges every time, because that’s expensive! That’s the difference between writing and not writing tests! “ Ragunath Jawahar

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theDroidLady • Slides : https:"//speakerdeck.com/niharika28/unit-testing-what-why-and-how • Source Code : https:"//github.com/niharika2810/UnitTesting-MVVM-Kotlin-Koin-Coroutines-Sample • Blog : https:"//medium.com/1mgofficial/unit-testing-in-mvvm-kotlin-databinding-ba3d4ea08f0e

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“ Just writing the code is not enough, Writing in an efficient way is the real challenge. Do mistakes & learn.“ @theDroidLady

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theDroidLady Catch up: • Github : https:!//github.com/niharika2810 • Medium : https:!//medium.com/@nik.arora8059 • LinkedIn : https:!//www.linkedin.com/in/thedroidlady/ • Twitter : https:!//twitter.com/theDroidLady • Portfolio : https:!//thedroidlady.com/

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theDroidLady Questions? Thank You 🙏