Clean Architecture in Android

class GetBanks(val repository: BanksRepository) : UseCase>() { 
override fun buildUseCaseObservable(): Observable> { 
return repository.getAll() 
} 
}

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} 
}

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} 
}

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interface BanksRepository : Repository { 
fun getAll(): Observable> 
fun update(bank: Bank): Completable 
}

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}

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}

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Data
• Repository੄ पઁ ҳഅ

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Data
• Data Source ੄ઓࢿ

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Data
• Data Source ੄ઓࢿ
• Android ੄ઓࢿ

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override fun getAll(): Observable> { 
return Observable.fromCallable { 
with(Realm.getDefaultInstance()) { 
use { 
where(BankModel::class.java).findAll().map {  
BankEntityMapper.fromRealmObject(it)  
} 
}  
} 
} 
}

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use { 
} 
}  
} 
} 
}

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use { 
} 
}  
} 
} 
}

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open class Bank : RealmObject() { 
@PrimaryKey open lateinit var id: String 
open lateinit var name: String 
open lateinit var imageUrl: String 
}

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use { 
BankEntityMapper.fromRealmObject(it) 
} 
}  
} 
} 
}

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object BankEntityMapper : EntityMapper { 
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 
} 
} 
}

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object BankEntityMapper : EntityMapper { 
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 
} 
} 
}

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class BanksNetworkRepository(private val context: Context) : BanksRepository { 
return context.retrofit.banksApi.getSupportedBanks() 
.map(GetSupportedBanksResponse::banks) 
.map { it.map { BankEntityMapper.fromNetworkResponseModel(it) } } 
} 
}

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data class Bank( 
@SerializedName("id") var id: String? = null, 
@SerializedName("name") var name: String? = null, 
@SerializedName("image_url") var imageUrl: String? = null 
) : Response

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Presentation
• UI ۨ߰੄ ୊ܻ

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Presentation
• UI ۨ߰੄ ୊ܻ

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Presentation
• UI ۨ߰੄ ୊ܻ
• View৬ Presenter

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class OrganizationFragment : BaseFragment(), 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() } 
} 
}

} 
 
} 
 
} 
}

} 
 
} 
 
} 
}

} 
 
} 
 
} 
}

} 
 
} 
 
} 
}

class OrganizationPresenter( 
view: OrganizationView, 
context: Context, 
private val getBanks: GetBanks = GetBanks(BanksNetworkRepository(context)) 
) : Presenter(view) {
override fun onDestroy() { 
getBanks.unsubscribe() 
}
 
fun onViewCreated() { 
getBanks.execute(object : DefaultSubscriber>() { 
override fun onNext(t: List) { 
view.showBanks(t) 
} 
}) 
} 
 
fun onNextButtonClicked() { 
with(view.getSelectedOrganizations()) { 
if (isNotEmpty()) { 
view.moveToAddCertificatePage(this) 
} 
} 
} 
}

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}
 
} 
}) 
} 
 
} 
} 
} 
}

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}
 
} 
}) 
} 
 
} 
} 
} 
}

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}
 
} 
}) 
} 
 
} 
} 
} 
}

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}
 
} 
}) 
} 
 
} 
} 
} 
}

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data class Amount( 
var amount: Long, 
var currency: Currency 
) : Parcelable { 
 
companion object { 
@JvmField val CREATOR: Parcelable.Creator = object : Parcelable.Creator { 
override fun createFromParcel(source: Parcel): Amount = Amount(source) 
override fun newArray(size: Int): Array = 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) 
} 
}

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ۨ੉פझ౟ীࢲח
• જ਷ ௏٘੄ ҳઑо જ਷ ઁಿਵ۽ ੉য૓׮Ҋ ޺ӝী ੉۞ೠ
ইఃఫ୊ܳ ੸ਊೞ৓णפ׮.

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ۨ੉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׮.

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ߛ௼࢟۞٘ܳ ݅٘ח ۨ੉פझ౟ীࢲ ੷൞
৬ ೣԋೡ উ٘۽੉٘ ূ૑פয ٜ࠙ਸ ଺
Ҋ ੓णפ׮.
Kotlin, RxJava, Retrofit, Glide, Realm

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Questions
github: sunghyunzz
email: [email protected]

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Clean Architecture in Android

Clean Architecture in Android

Sunghyun Hwang

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