Android Development Notes

Android boilerplates #

recyclerview #

• click listener, data update, swipe refresh, empty view etc)
• horizontal, vertical, staggeredgrid
• snaplayout (https://github.com/rubensousa/RecyclerViewSnap/)

coordinatorlayout with basic custom child behavior #

fragment adding in activity #

• fragmentmanager add/replace framelayout id
• using baseactivity
• using newinstance (passing data)
• handling backstacks
• adding child fragment

viewpager #

• fragment with tabs
• basic (pageradapter)
• basic (fragmentstatepageradapter)

preferencefragment/activity #

passing intents (generic, eventbus, parcelable, serializable) #

threading, asynctask, delay (simple show/hide animation) #

• http://stackoverflow.com/questions/3264383/difference-between-service-async-task-thread
• http://www.vogella.com/tutorials/AndroidBackgroundProcessing/article.html
• http://stackoverflow.com/questions/13954611/android-when-should-i-use-a-handler-and-when-should-i-use-a-thread
• http://stackoverflow.com/questions/9671546/asynctask-android-example

Passing data through app #

basic custom view (onDraw, removing, behavior) #

fab button (behavior) X #

enum X #

lifecycle (activity, fragment, adapter, androidannotations) #

persisting data (sharedpreference, savedinstancestate, db) #

• https://inthecheesefactory.com/blog/fragment-state-saving-best-practices/en

custom camera layout (camera2 api) #

• https://github.com/googlesamples/android-Camera2Basic
• https://github.com/aimanbaharum/custom-camera-layout

runtime permission #

optimizing bitmaps (when decodeFile) #

observing data changes (contentobserver, asyntaskloader, service, localbroadcastmanager) #

• https://www.websmithing.com/2011/02/01/how-to-update-the-ui-in-an-android-activity-using-data-from-a-background-service/
• http://code.tutsplus.com/tutorials/android-from-scratch-understanding-android-broadcasts--cms-27026
• http://stackoverflow.com/questions/14695537/android-update-activity-ui-from-service

app deep linking #

notifications #

• display notification

push notification using FCM #

job schedulers #

• Demo code http://pastebin.com/bytVqz87
• https://catinean.com/2014/10/19/smart-background-tasks-with-jobscheduler/

adding menu item into fragment/activity #

prettify gradle.build #

• https://github.com/bluelinelabs/Conductor/blob/develop/dependencies.gradle
• http://gmariotti.blogspot.com/2015/07/how-to-centralize-support-libraries.html

Android common utils #

• https://github.com/Blankj/AndroidUtilCode
• Logging utility

DiffUtils #

• Using DiffUtil in Android RecyclerView - https://medium.com/@iammert/using-diffutil-in-android-recyclerview-bdca8e4fbb00#.wxoffctpj
• DiffUtil is a must - https://medium.com/@nullthemall/diffutil-is-a-must-797502bc1149#.fzzzae5pa

General knowledge for the curious #

• How they build Android without Fragment/Activity - https://realm.io/news/sf-fabien-davos-modern-android-ditching-activities-fragments/
• Learn to context - https://possiblemobile.com/2013/06/context/

Annotation over enums #

• Java Enum and Android IntDef/StringDef annotation - https://noobcoderblog.wordpress.com/2015/04/12/java-enum-and-android-intdefstringdef-annotation/

Vector drawables #

• http://blog.sqisland.com/2014/10/first-look-at-animated-vector-drawable.html
• http://blog.nkdroidsolutions.com/android-vector-drawable-example-using-appcompat-v23-2/
• http://code.tutsplus.com/articles/using-androids-vectordrawable-class--cms-23948
• Drawing and animating on a canvas - http://www.alvinashcraft.com/2012/06/18/making-animations-over-the-canvas-excerpt-from-60-android-hacks/
• https://blog.stylingandroid.com/animatedvectordrawable-bundles/

Architecture #

MVP #

• http://engineering.remind.com/android-code-that-scales/
• http://antonioleiva.com/mvp-android/
• https://medium.com/@czyrux/presenter-surviving-orientation-changes-with-loaders-6da6d86ffbbf#.z6xozfyte
• http://code.tutsplus.com/tutorials/how-to-adopt-model-view-presenter-on-android--cms-26206
• http://www.tinmegali.com/en/model-view-presenter-android-part-1/
• https://www.youtube.com/watch?v=Asc4hU1iSTU
• https://www.novoda.com/blog/better-class-naming/
• http://www.singhajit.com/mvp-in-android/
• http://stackoverflow.com/questions/30704349/how-to-apply-mvp-pattern-to-android-project
• Retrofit + RxJava: https://kmangutov.wordpress.com/2015/03/28/android-mvp-consuming-restful-apis/
• http://hannesdorfmann.com/mosby/mvp/
• https://upday.github.io/blog/model-view-presenter/
• MVP/TDD - http://manabreak.eu/android/2016/10/26/mvp-tdd.html
• MVP without Dagger/RxJava - https://android.jlelse.eu/avenging-android-mvp-23461aebe9b5#.qf5t6bzdj
• https://medium.com/@m_mirhoseini/yet-another-mvp-article-part-1-lets-get-to-know-the-project-d3fd553b3e21#.48o68njtj
• Refactoring an Android App - #1 - Intro to the MVP pattern - https://www.youtube.com/watch?v=ZWYOy8E4jWo
• Structuring project example - https://github.com/futurice/freesound-android/tree/master/app/src/main/java/com/futurice/freesound
• Another MVP project - https://github.com/athkalia/Just-Another-Android-App
• Essential guide for designing your android app architecture mvp part 1 - https://blog.mindorks.com/essential-guide-for-designing-your-android-app-architecture-mvp-part-1-74efaf1cda40#.w5ly19ato (source code)
• MVP and RxJava - https://lorentzos.com/mvp-and-rxjava-9dfcbe79bf77#.dx17wrltc
• Handling api calls using retrofit 2 and rxjava - https://medium.com/3xplore/handling-api-calls-using-retrofit-2-and-rxjava-2-1871c891b6ae
• MVP vs MVVM - https://antonioleiva.com/mvvm-vs-mvp/

MVVM #

• twitter api to search tweets (MVVM, Rxjava 2, Retrofit 2, Databinding) - https://github.com/r7v/Tweetz/

MVI #

• MVI on Android - https://medium.com/@fnberta/mvi-on-android-20677f80df55

Dependency Containers #

Dagger #

• Dagger 2 + Retrofit + OkHttp + Gson - https://adityaladwa.wordpress.com/2016/05/09/dagger-2-with-retrofit-and-okhttp-and-gson/
• Dagger 2 + Realm test - https://github.com/niqdev/dagger-realm-test
• Dagger 2 + MVP - https://adityaladwa.wordpress.com/2016/05/11/dagger-2-and-mvp-architecture/

Design pattern #

• https://github.com/dbacinski/Design-Patterns-In-Kotlin/
• Repository pattern - https://adityaladwa.wordpress.com/2016/10/25/offline-first-reactive-android-apps-repository-pattern-mvp-dagger-2-rxjava-contentprovider/
• Common design pattern on Android - https://www.raywenderlich.com/109843/common-design-patterns-for-android
• MVC, MVP, MVVM Design Patterns with Godfrey Nolan - https://www.youtube.com/watch?v=JV63czrUpbI&feature=share
• Design patterns for human - https://github.com/kamranahmedse/design-patterns-for-humans
• Offline support - https://medium.com/@yonatanvlevin/offline-support-try-again-later-no-more-afc33eba79dc#.vlmdsz3ne
• Syncing changes in Trello app - http://tech.trello.com/syncing-changes/
• Building a sync adapter and using it on Android - http://josiassena.com/building-a-sync-adapter-and-using-it-on-android
• Repository pattern, generally - https://medium.com/@krzychukosobudzki/repository-design-pattern-bc490b256006#.b8uer86v2
• Anti-If: The missing patterns - https://code.joejag.com/2016/anti-if-the-missing-patterns.html

Reactive Programming Android #

• RxJava + MVVM - https://www.youtube.com/watch?v=h25FDyGTLso
• RxAndroid tutorial - https://www.raywenderlich.com/141980/rxandroid-tutorial
• Reactive Apps with MVI - http://hannesdorfmann.com/android/mosby3-mvi-1
• RxJava example - https://github.com/politrons/reactive
• Essenstial RxJava Guide for Android dev - http://blog.jimbaca.com/essential-rxjava-guide-for-android-developers/

Functional programming #

• Functional programming for android developers (part 2) - https://medium.freecodecamp.com/functional-programming-for-android-developers-part-2-5c0834669d1a#.ldji44tas

Android Data Binding library #

• http://www.androidauthority.com/data-binding-in-android-709747/

Realm #

• https://dzone.com/articles/realm-practical-use-in-android (+ best practice on design pattern)
• Realm example with MVP pattern and clean architecture for Android - https://github.com/asanchezyu/RealmExample
• Realm safe/deep integration - https://medium.com/@Viraj.Tank/realm-integration-in-android-best-practices-449919d25f2f#.8segcttyg
• Realm in general - https://android.jlelse.eu/realm-its-all-about-the-choices-we-make-7c2fe380ecd8#.cm2sitlpy
• Example of Realm with MVP and Dagger - https://www.thedroidsonroids.com/blog/android/example-realm-mvp-dagger/
• RealmDb : Clean architecture in Android - http://stackoverflow.com/questions/37085259/realmdb-clean-architecture-in-android

Android guidelines #

• https://github.com/ribot/android-guidelines
• https://github.com/ribot/android-boilerplate
• Applying Clean Architecture on Android - http://five.agency/android-architecture-part-4-applying-clean-architecture-on-android-hands-on/

Offline-first apps #

• Android Data Sync
• Offline App Architecture
• Using Couchbase
• Using Firebase

Kotlin #

• Kotling lang - https://antonioleiva.com/variables-kotlin/
• Living Android without Kotlin - https://hackernoon.com/living-android-without-kotlin-db7391a2b170#.hx713yiy6
• Kotlin For Android: An Introduction - https://www.raywenderlich.com/132381/kotlin-for-android-an-introduction

Open source Android resources #

• Kickstarter
• DuckDuckGo
• Forecastie
• This repo
• Public APIs
• twitter-birdhouse - Data sync implementation
• Workcation app (Map based app)
• MVP Sample - MVP (Model View Presenter) pattern using Kotlin, RXJava, Retrofit, Dagger and DataBinding
• Dagger2 MVP - MVP pattern with Dagger2 and RxJava/Android
• https://medium.com/@dmytrodanylyk/google-io-2017-useful-android-links-e756077f8895 - Google IO 2017 Useful Android links
• Cewlrency - Currency converter app with RxJava

Android Things #

• Writing your first Android Things - https://www.novoda.com/blog/writing-your-first-android-things-driver-p1

Android Animation #

• How to animate on Android - https://proandroiddev.com/how-to-animate-on-android-f8d227135613

Android Tutorials #

• Implement a login screen - https://medium.com/@vpaliy/do-you-dare-me-to-implement-this-login-screen-bf29b72d9e39

TDD in Android Development #

• https://codelabs.developers.google.com/codelabs/android-testing/index.html
• http://mayojava.github.io/android/android-ui-instrumentation-test-with-espresso/
• https://realm.io/news/ellen-shapiro-android-testing/
• https://medium.com/mobility/how-to-do-tdd-in-android-90f013d91d7f#.k52b4kvcb
• http://trickyandroid.com/android-test-tricks-sharing-code-between-unit-ui-tests/
• https://medium.com/android-testing-daily/writing-your-first-test-57ce98dc22c6#.5ntu91iop
• What makes android apps testable
• https://github.com/Karumi/KataScreenshotAndroid
• Testing Sqlite on Android
• SnackBuilder lib with Test Suite
• Structuring Android app for testability - http://blog.marcinbudny.com/2015/04/structuring-android-app-for-testability.html
• Continuous integration with android - https://medium.com/appaloosa-store-engineering/continuous-integration-with-android-14047096f3de#.47tdh580c
• TDD your UI layer - http://www.donnfelker.com/tdd-your-ui-layer/
• Mocking HTTP responses using Retrofit 2 - https://riggaroo.co.za/retrofit-2-mocking-http-responses/
• TDD mindset story - http://panavtec.me/approaching-tdd-outside-android
• Android Testing Guide - https://github.com/ravidsrk/android-testing-guide
• Why Android Testing is so Hard: Historical Edition - https://www.philosophicalhacker.com/2015/04/17/why-android-unit-testing-is-so-hard-pt-1/
• Story code - https://publicobject.com/2017/02/06/story-code
• Building Android with BitBucket Pipelines- https://medium.com/@_tiwiz/building-android-with-bitbucket-pipelines-83cd62dbde33#.gebakdkn0
• Android Travis CI config - https://github.com/niqdev/dagger-realm-test/blob/master/.travis.yml
• Testing MVP using Espresso and Mockito - https://josiassena.com/testing-mvp-using-espresso-and-mockito/