Clean Architecture in Android

Droid Knights 2017에서 발표한 [Clean Architecture in Android] 발표 슬라이드입니다. (https://droidknights.github.io/2017/)

1. Clean Architecture in Android const val presenter = "sunghyunzz"
4. • 2015֙ 12ਘ ୹द
5. • 2015֙ 12ਘ ୹द • ف ߣ੄ ؀ӏݽ সؘ੉౟
6. • 2015֙ 12ਘ ୹द • ف ߣ੄ ؀ӏݽ সؘ੉౟ • Ր੐হח ࢎਊ੗ ੋఠ࠭ܳ ాೠ ѐࢶ
7. • 2015֙ 12ਘ ୹द • ف ߣ੄ ؀ӏݽ সؘ੉౟ • Ր੐হח ࢎਊ੗ ੋఠ࠭ܳ ాೠ ѐࢶ • ҅ࣘ ѐࢶغҊ ߸ചೞח ઁಿ
8. • 2015֙ 12ਘ ୹द • ف ߣ੄ ؀ӏݽ সؘ੉౟ • Ր੐হח ࢎਊ੗ ੋఠ࠭ܳ ాೠ ѐࢶ • ҅ࣘ ѐࢶغҊ ߸ചೞח ઁಿ • ௏٘о ҅ࣘ ߄Ո׮
10. “߸ച ৻ী ৔ਗೠ Ѫ਷ হ׮.” - Heraclitus
11. “ೖೡ ࣻ হਵݶ ૌѹۄ.” - ־ҵо
12. import kotlinx.android.synthetic.main.activity_transactions_temp.*
13. ߸ചী ੜ ؀਽ೡ ࣻ ੓ח ௏٘ח যڃ ݽणੌө?
14. ߸ചী ੜ ؀਽ೡ ࣻ ੓׮. = ߸ചী ٮܲ ௏٘੄ ߸҃੉ ੸׮.
15. ߸ചী ੜ ؀਽ೡ ࣻ ੓׮. = ߸ചী ٮܲ ௏٘੄ ߸҃੉ ੸׮.
16. ߸ചী ੜ ؀਽ೡ ࣻ ੓׮. = ߸ചী ٮܲ ௏٘੄ ߸҃੉ ੸׮. = ௏٘о ੜ ܻ࠙غয੓׮.
17. ߸ചী ੜ ؀਽ೡ ࣻ ੓׮. = ߸ചী ٮܲ ௏٘੄ ߸҃੉ ੸׮. = ௏٘о ੜ ܻ࠙غয੓׮. = ௏٘о ࠄ૕ী ݏѱ ࢸ҅غয੓׮.
18. ࠄ૕ = { بݫੋ੄ ࠄ૕, ѐߊ ҳઑ ࢚੄ ࠄ૕, উ٘۽੉٘ ೒ۖಬ੄ ࠄ૕, ... }
19. ࠄ૕ = { بݫੋ੄ ࠄ૕, ѐߊ ҳઑ ࢚੄ ࠄ૕, উ٘۽੉٘ ೒ۖಬ੄ ࠄ૕, ... }
20. ࠄ૕ = { بݫੋ੄ ࠄ૕, ѐߊ ҳઑ ࢚੄ ࠄ૕, উ٘۽੉٘ ೒ۖಬ੄ ࠄ૕, ... }
21. ࠄ૕ = { بݫੋ੄ ࠄ૕, ѐߊ ҳઑ ࢚੄ ࠄ૕, উ٘۽੉٘ ҳઑ ࢚੄ ࠄ૕, ... }
22. ࠄ૕ = { بݫੋ੄ ࠄ૕, ѐߊ ҳઑ ࢚੄ ࠄ૕, উ٘۽੉٘ ҳઑ ࢚੄ ࠄ૕, ... }
23. https://8thlight.com/blog/uncle-bob/2012/08/13/the-clean-architecture.html
24. 1. Independent of Frameworks
25. 1. Independent of Frameworks 2. Testable
26. 1. Independent of Frameworks 2. Testable 3. Independent of UI
27. 1. Independent of Frameworks 2. Testable 3. Independent of UI 4. Independent of Database
28. 1. Independent of Frameworks 2. Testable 3. Independent of UI 4. Independent of Database 5. Independent of External Configuration
29. https://fernandocejas.com/2014/09/03/architecting-android-the-clean-way
30. 4 Layers
31. Presentation
32. Presentation Data
33. Presentation Data Domain
34. Presentation Data Domain Entity
35. Presentation Data Domain Entity
36. Entity • ࣽࣻೠ Java(Kotlin) ݽٕ
37. Entity • ࣽࣻೠ Java(Kotlin) ݽٕ • Android৬੄ ੄ઓࢿ੉ হ਺
38. Entity • ࣽࣻೠ Java(Kotlin) ݽٕ • Android৬੄ ੄ઓࢿ੉ হ਺ • بݫੋ(࠺ૉפझ ۽૒)ীࢲ ౵ࢤغח ѐ֛ਸ ಴അ
39. Entity • ࣽࣻೠ Java(Kotlin) ݽٕ • Android৬੄ ੄ઓࢿ੉ হ਺ • بݫੋ(࠺ૉפझ ۽૒)ীࢲ ౵ࢤغח ѐ֛ਸ ಴അ • (э਷ ࢲ࠺झ) Android - iOS - ࢲߡ ݽف زੌೠ ഋక
40. class TransactionCategory(
 val id: String,
 val name: String,
 val transactionType: TransactionType,
 val priority: Int ) : Entity
41. Domain • ࣽࣻೠ Java(Kotlin) ݽٕ
42. Domain • ࣽࣻೠ Java(Kotlin) ݽٕ • Use Case
43. Domain • ࣽࣻೠ Java(Kotlin) ݽٕ • Use Case • Repository Interface ੿੄
44. class GetBanks(val repository: BanksRepository) : UseCase<List<Bank>>() {
 override fun buildUseCaseObservable(): Observable<List<Bank>> {
 return repository.getAll()
 }
 }
45. class GetBanks(val repository: BanksRepository) : UseCase<List<Bank>>() {
 override fun buildUseCaseObservable(): Observable<List<Bank>> {
 return repository.getAll()
 }
 }
46. class GetBanks(val repository: BanksRepository) : UseCase<List<Bank>>() {
 override fun buildUseCaseObservable(): Observable<List<Bank>> {
 return repository.getAll()
 }
 }
47. interface BanksRepository : Repository {
 fun getAll(): Observable<List<Bank>>
 fun update(bank: Bank): Completable
 }
48. interface BanksRepository : Repository {
 fun getAll(): Observable<List<Bank>>
 fun update(bank: Bank): Completable
 }
49. interface BanksRepository : Repository {
 fun getAll(): Observable<List<Bank>>
 fun update(bank: Bank): Completable
 }
50. Data • Repository੄ पઁ ҳഅ
51. Data • Repository੄ पઁ ҳഅ • Data Source ੄ઓࢿ
52. Data • Repository੄ पઁ ҳഅ • Data Source ੄ઓࢿ • Android ੄ઓࢿ
53. override fun getAll(): Observable<List<Bank>> {
 return Observable.fromCallable {
 with(Realm.getDefaultInstance()) {
 use {
 where(BankModel::class.java).findAll().map { 
 BankEntityMapper.fromRealmObject(it) 
 }
 } 
 }
 }
 }
54. override fun getAll(): Observable<List<Bank>> {
 return Observable.fromCallable {
 with(Realm.getDefaultInstance()) {
 use {
 where(BankModel::class.java).findAll().map { 
 BankEntityMapper.fromRealmObject(it) 
 }
 } 
 }
 }
 }
55. override fun getAll(): Observable<List<Bank>> {
 return Observable.fromCallable {
 with(Realm.getDefaultInstance()) {
 use {
 where(BankModel::class.java).findAll().map { 
 BankEntityMapper.fromRealmObject(it) 
 }
 } 
 }
 }
 }
56. open class Bank : RealmObject() {
 @PrimaryKey open lateinit var id: String
 open lateinit var name: String
 open lateinit var imageUrl: String
 }
57. override fun getAll(): Observable<List<Bank>> {
 return Observable.fromCallable {
 with(Realm.getDefaultInstance()) {
 use {
 where(BankModel::class.java).findAll().map { 
 BankEntityMapper.fromRealmObject(it)
 }
 } 
 }
 }
 }
58. object BankEntityMapper : EntityMapper<BankModel, Bank> {
 override fun fromRealmObject(obj: BankModel): Bank {
 return Bank(
 obj.id,
 obj.name,
 obj.imageUrl
 )
 }
 
 override fun toRealmObject(entity: Bank): BankModel {
 return BankModel().apply {
 id = entity.id
 name = entity.name
 imageUrl = entity.imageUrl
 }
 }
 }
59. object BankEntityMapper : EntityMapper<BankModel, Bank> {
 override fun fromRealmObject(obj: BankModel): Bank {
 return Bank(
 obj.id,
 obj.name,
 obj.imageUrl
 )
 }
 
 override fun toRealmObject(entity: Bank): BankModel {
 return BankModel().apply {
 id = entity.id
 name = entity.name
 imageUrl = entity.imageUrl
 }
 }
 }
60. class BanksNetworkRepository(private val context: Context) : BanksRepository {
 override fun getAll(): Observable<List<Bank>> {
 return context.retrofit.banksApi.getSupportedBanks()
 .map(GetSupportedBanksResponse::banks)
 .map { it.map { BankEntityMapper.fromNetworkResponseModel(it) } }
 }
 }
61. data class Bank(
 @SerializedName("id") var id: String? = null,
 @SerializedName("name") var name: String? = null,
 @SerializedName("image_url") var imageUrl: String? = null
 ) : Response
62. Presentation • UI ۨ߰੄ ୊ܻ
63. Presentation • UI ۨ߰੄ ୊ܻ • Android ੄ઓࢿ
64. Presentation • UI ۨ߰੄ ୊ܻ • Android ੄ઓࢿ • View৬ Presenter
65. class OrganizationFragment : BaseFragment<OrganizationPresenter, OrganizationView>(), OrganizationView {
 override val presenter: OrganizationPresenter by lazy {
 OrganizationPresenter(this, act)
 }
 
 override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, saved: Bundle?): View? {
 return inflater!!.inflate(R.layout.fragment_signup_organization, container, false)
 }
 
 override fun onViewCreated(view: View?, saved: Bundle?) {
 super.onViewCreated(view, saved)
 presenter.onViewCreated()
 nextBtn.onClick { presenter.onNextButtonClicked() }
 }
 }
66. class OrganizationFragment : BaseFragment<OrganizationPresenter, OrganizationView>(), OrganizationView {
 override val presenter: OrganizationPresenter by lazy {
 OrganizationPresenter(this, act)
 }
 
 override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, saved: Bundle?): View? {
 return inflater!!.inflate(R.layout.fragment_signup_organization, container, false)
 }
 
 override fun onViewCreated(view: View?, saved: Bundle?) {
 super.onViewCreated(view, saved)
 presenter.onViewCreated()
 nextBtn.onClick { presenter.onNextButtonClicked() }
 }
 }
67. class OrganizationFragment : BaseFragment<OrganizationPresenter, OrganizationView>(), OrganizationView {
 override val presenter: OrganizationPresenter by lazy {
 OrganizationPresenter(this, act)
 }
 
 override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, saved: Bundle?): View? {
 return inflater!!.inflate(R.layout.fragment_signup_organization, container, false)
 }
 
 override fun onViewCreated(view: View?, saved: Bundle?) {
 super.onViewCreated(view, saved)
 presenter.onViewCreated()
 nextBtn.onClick { presenter.onNextButtonClicked() }
 }
 }
68. class OrganizationFragment : BaseFragment<OrganizationPresenter, OrganizationView>(), OrganizationView {
 override val presenter: OrganizationPresenter by lazy {
 OrganizationPresenter(this, act)
 }
 
 override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, saved: Bundle?): View? {
 return inflater!!.inflate(R.layout.fragment_signup_organization, container, false)
 }
 
 override fun onViewCreated(view: View?, saved: Bundle?) {
 super.onViewCreated(view, saved)
 presenter.onViewCreated()
 nextBtn.onClick { presenter.onNextButtonClicked() }
 }
 }
69. class OrganizationFragment : BaseFragment<OrganizationPresenter, OrganizationView>(), OrganizationView {
 override val presenter: OrganizationPresenter by lazy {
 OrganizationPresenter(this, act)
 }
 
 override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, saved: Bundle?): View? {
 return inflater!!.inflate(R.layout.fragment_signup_organization, container, false)
 }
 
 override fun onViewCreated(view: View?, saved: Bundle?) {
 super.onViewCreated(view, saved)
 presenter.onViewCreated()
 nextBtn.onClick { presenter.onNextButtonClicked() }
 }
 }
70. class OrganizationPresenter(
 view: OrganizationView,
 context: Context,
 private val getBanks: GetBanks = GetBanks(BanksNetworkRepository(context))
 ) : Presenter<OrganizationView>(view) { override fun onDestroy() {
 getBanks.unsubscribe()
 } 
 fun onViewCreated() {
 getBanks.execute(object : DefaultSubscriber<List<Bank>>() {
 override fun onNext(t: List<Bank>) {
 view.showBanks(t)
 }
 })
 }
 
 fun onNextButtonClicked() {
 with(view.getSelectedOrganizations()) {
 if (isNotEmpty()) {
 view.moveToAddCertificatePage(this)
 }
 }
 }
 }
71. class OrganizationPresenter(
 view: OrganizationView,
 context: Context,
 private val getBanks: GetBanks = GetBanks(BanksNetworkRepository(context))
 ) : Presenter<OrganizationView>(view) { override fun onDestroy() {
 getBanks.unsubscribe()
 } 
 fun onViewCreated() {
 getBanks.execute(object : DefaultSubscriber<List<Bank>>() {
 override fun onNext(t: List<Bank>) {
 view.showBanks(t)
 }
 })
 }
 
 fun onNextButtonClicked() {
 with(view.getSelectedOrganizations()) {
 if (isNotEmpty()) {
 view.moveToAddCertificatePage(this)
 }
 }
 }
 }
72. class OrganizationPresenter(
 view: OrganizationView,
 context: Context,
 private val getBanks: GetBanks = GetBanks(BanksNetworkRepository(context))
 ) : Presenter<OrganizationView>(view) { override fun onDestroy() {
 getBanks.unsubscribe()
 } 
 fun onViewCreated() {
 getBanks.execute(object : DefaultSubscriber<List<Bank>>() {
 override fun onNext(t: List<Bank>) {
 view.showBanks(t)
 }
 })
 }
 
 fun onNextButtonClicked() {
 with(view.getSelectedOrganizations()) {
 if (isNotEmpty()) {
 view.moveToAddCertificatePage(this)
 }
 }
 }
 }
73. class OrganizationPresenter(
 view: OrganizationView,
 context: Context,
 private val getBanks: GetBanks = GetBanks(BanksNetworkRepository(context))
 ) : Presenter<OrganizationView>(view) { override fun onDestroy() {
 getBanks.unsubscribe()
 } 
 fun onViewCreated() {
 getBanks.execute(object : DefaultSubscriber<List<Bank>>() {
 override fun onNext(t: List<Bank>) {
 view.showBanks(t)
 }
 })
 }
 
 fun onNextButtonClicked() {
 with(view.getSelectedOrganizations()) {
 if (isNotEmpty()) {
 view.moveToAddCertificatePage(this)
 }
 }
 }
 }
74. class OrganizationPresenter(
 view: OrganizationView,
 context: Context,
 private val getBanks: GetBanks = GetBanks(BanksNetworkRepository(context))
 ) : Presenter<OrganizationView>(view) { override fun onDestroy() {
 getBanks.unsubscribe()
 } 
 fun onViewCreated() {
 getBanks.execute(object : DefaultSubscriber<List<Bank>>() {
 override fun onNext(t: List<Bank>) {
 view.showBanks(t)
 }
 })
 }
 
 fun onNextButtonClicked() {
 with(view.getSelectedOrganizations()) {
 if (isNotEmpty()) {
 view.moveToAddCertificatePage(this)
 }
 }
 }
 }
75. data class Amount(
 var amount: Long,
 var currency: Currency
 ) : Parcelable {
 
 companion object {
 @JvmField val CREATOR: Parcelable.Creator<Amount> = object : Parcelable.Creator<Amount> {
 override fun createFromParcel(source: Parcel): Amount = Amount(source)
 override fun newArray(size: Int): Array<Amount?> = arrayOfNulls(size)
 }
 }
 
 constructor(valueObject: AmountValueObject) : this(
 valueObject.amount,
 Currency.from(valueObject.currency)
 )
 
 constructor(source: Parcel) : this(
 source.readLong(),
 Currency.from(source.readString())
 )
 
 override fun describeContents() = 0
 
 override fun writeToParcel(dest: Parcel?, flags: Int) {
 dest?.writeLong(amount)
 dest?.writeString(currency.code)
 }
 }
76. ۨ੉פझ౟ীࢲח • જ਷ ௏٘੄ ҳઑо જ਷ ઁಿਵ۽ ੉য૓׮Ҋ ޺ӝী ੉۞ೠ ইఃఫ୊ܳ ੸ਊೞ৓णפ׮.
77. ۨ੉פझ౟ীࢲח • જ਷ ௏٘੄ ҳઑо જ਷ ઁಿਵ۽ ੉য૓׮Ҋ ޺ӝী ੉۞ೠ ইఃఫ୊ܳ ੸ਊೞ৓णפ׮. • ইఃఫ୊ بੑ੄ ૓ੑ ੢߷ࠁ׮ ߸ചী ੸਽ೡ ࣻ ੓਺ীࢲ য়ח ਬোೣ੉ ؊ ч૑׮Ҋ ࢤпೞৈ ੉۞ೠ ইఃఫ୊ܳ ੸ਊ ೞ৓णפ׮.
78. ߛ௼࢟۞٘ܳ ݅٘ח ۨ੉פझ౟ীࢲ ੷൞ ৬ ೣԋೡ উ٘۽੉٘ ূ૑פয ٜ࠙ਸ ଺ Ҋ ੓णפ׮. Kotlin, RxJava, Retrofit, Glide, Realm
79. Questions github: sunghyunzz email: me@sunghyunzz.com