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Android Clean Architecture
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Felipe Costa
October 28, 2015
Programming
2
170
Android Clean Architecture
Introdução ao Clean Architecture aplicado ao Android.
Felipe Costa
October 28, 2015
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Transcript
CLEAN ARCHITECTURE NO ANDROID FELIPE COSTA
ANDROID
ANDROID MVC ▸ Trygve Reenskaug (1979) ▸ Smalltalk ▸ GUI
▸ UI X lógica ▸ Componentes Principais: Model, View, Controller MODEL CONTROLLER VIEW UPDATES MANIPULATES USER SEES USES
ANDROID MODEL ▸ Dados da Aplicação ▸ Regras de negócio
▸ Lógica ▸ Funções
ANDROID VIEW ▸ UI ▸ Exibição de dados do modelo
ANDROID CONTROLLER ▸ Intermediação entre View e Model ▸ Envio
de comandos para o Model ▸ Envio de comandos para a View
ANDROID PROBLEMAS DO MVC ▸ Mistura entre lógica de domínio/negócio/aplicação
▸ Fat Controller ▸ Fat model, skinny controller ▸ God objects ▸ Difícil de testar (Unit Test)
ANDROID ALTERNATIVAS AO MVC ▸ MVP ▸ MVVM
CLEAN ARCHITECTURE
ARCHITECTURE IS ABOUT INTENT, NOT FRAMEWORKS Uncle Bob CLEAN ARCHITECTURE
None
CLEAN ARCHITECTURE ENTITIES ▸ Objetos de negócio
CLEAN ARCHITECTURE USE CASES ▸ Regras de negócio ▸ Controle
do fluxo de dados de e para as entities ▸ Interactors
CLEAN ARCHITECTURE INTERFACE ADAPTERS ▸ Conversão dos dados para um
formato mais conviniente para os use Cases e entities ▸ Presenters e Controllers
CLEAN ARCHITECTURE FRAMEWORKS AND DRIVERS ▸ UI ▸ Frameworks ▸
Database ▸ Tools ▸ etc
CLEAN ARCHITECTURE CROSSING BOUNDARIES PRESENTER USE CASE OUTPUT PORT USE
CASE INPUT PORT USE CASE INTERACTION CONTROLLER CONTROLE DE FLUXO
CLEAN ARCHITECTURE DEPENDENCY RULE ▸ A dependência de código somente
pode apontar para dentro ▸ Os círculos internos não podem conhecer nada sobre os círculos externos ▸ Não está restrito a quantidade de círculos
CLEAN ARCHITECTURE CONSEQUÊNCIAS ▸ Independência de Framework ▸ Testável (Unit
Test) ▸ Independência de UI ▸ Independência de DB ▸ Independência de agentes externos
DO NOT DEPEND ON THINGS THAT CHANGE OR ARE LIKELY
TO CHANGE Uncle Bob CLEAN ARCHITECTURE
ANDROID ARCHITECTURE
ANDROID ARCHITECTURE DOMAIN LAYER JAVA BUSINESS RULES DATA LAYER ANDROID
LIBRARY DATA PRESENTATION LAYER JAVA MVC MVP MVVM APPLICATION LAYER ANDROID APP UI
ANDROID ARCHITECTURE CONSEQUÊNCIAS ▸ Fácil de Manter ▸ Fácil de
testar (Unit Test) ▸ Muito coesa ▸ Desacoplada ▸ S.O.L.I.D
ANDROID ARCHITECTURE LINKS ▸ https://blog.8thlight.com/uncle-bob/2012/08/13/the-clean- architecture.html ▸ https://vimeo.com/43612849 ▸ http://fernandocejas.com/2014/09/03/architecting-
android-the-clean-way/ ▸ https://github.com/android10/Android-CleanArchitecture ▸ https://github.com/mcharmas/shoppinglist-clean- architecture-example
QA
OBRIGADO FELIPE COSTA E-MAIL: FELIPE.H.J.COSTA@GMAIL.COM TWITTER: @FELIPEHJCOSTA