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How to use Dagger2 and Koin
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Hyeonji Jeong
April 05, 2019
Programming
2
1.1k
How to use Dagger2 and Koin
2019_정현지_droidknights
Dagger2 vs Koin 어떻게 쓰는 걸까요?
Hyeonji Jeong
April 05, 2019
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Transcript
%BHHFS WT ,PJO যڌѱॳחѦөਃ 4QFBLFS അ
ٜٜ۠࠙ਵदݶજणפ %BHHFS৬,PJOӝୡੋधҗद ਊߨਸঌҊरযೞחפযٜ࠙ਸਤೠ ߊܳೞ۰Ҋפ
য়טݾର ↟%*ۆޖੌө ↟%BHHFSۆޖੌө ↟,PJOۆޖੌө ↟%BHHFS৬,PJO җױޖੌө
↟ۧѱࢎਊ೧ࠁ ↟%BHHFS,PJOਊ೧ࠁӝ ↟ޖܻ۽ંী؊যܾө ↟%*ܳҕࠗೞҊۧѱਊೞݶܻоחѪޖੌө ↟݃ޖܻ
%*ۆޖੌө %FQFOEFODZ*OKFDUJPO
%*ۆޖੌө %FQFOEFODZ*OKFDUJPO
%*ۆޖੌө %FQFOEFODZ $MBTT$PGGFF GVONBLF-BUUF $MBTT.BUFSJBM GVONJML GVOFTQSFTTP
%*ۆޖੌө %FQFOEFODZ class Coffee { val material = Material() fun
makeLatte() { material.milk() material.espresso() } } class Material { fun milk() {} fun espresso() {} }
%*ۆޖੌө %FQFOEFODZ*OKFDUJPO
%*ۆޖੌө Ӓܿ߸҃ OFX.JML -BUUFё OFX&TQSFTTP Latte ё
উীࢲ ࢜۽ ёܳ ࢤࢿೞ ঋח!
%*ۆޖੌө فѐ࢚ݽٕաېझрѾبܳծ୶ӝਤ೧ ৻ࠗীࢲOFXёࢤࢿਸೞҊੑೞחѪ %* ઓࢿੑۆ
-BUUFё OFX4ZSVQ OFX.JML OFX&TQSFTTP
OFX*DF %*ۆޖੌө
-BUUFё OFX4ZSVQ OFX.JML OFX&TQSFTTP
OFX*DF %*ۆޖੌө "NFSJDBOPё OFX4ZSVQ OFX&TQSFTTP OFX*DF
%*ۆޖੌө OFX.JML -BUUFё OFX &TQSFTTP OFX4ZSVQ OFX*DF
%*ۆޖੌө OFX.JML -BUUFё OFX &TQSFTTP OFX4ZSVQ OFX*DF
"NFSJDBOPё
%*ۆޖੌө *0$ ৻ࠗ'SBNFXPSL OFX.JML OFX &TQSFTTP OFX4ZSVQ
OFX*DF -BUUFё
%BHHFSۆޖੌө
%BHHFSۆޖੌө উ٘۽٘ীࢲ ઓࢿੑਸҳഅೞӝਤ೧ ࢎਊೞחۄ࠳۞ܻ
ਫ਼Ӭ݅ঌҊֈযо %BHHFS %BHHFS
ਫ਼Ӭ݅ঌҊֈযо %BHHFS 4RVBSF %BHHFS (PPHMF
ਫ਼Ӭ݅ঌҊֈযо ਫ਼Ӭ݅ঌҊֈযо %BHHFS 3FGMFDUJPOוܻ ۠ఋ(SBQIҳࢿ
द
%BHHFSۆޖੌө
%BHHFSۆޖੌө ↟%FQFOEFODZJOKFDUJPOUPPM ↟BOOPUBUJPOQSPDFTTPSࢎਊ ↟OPSVOUJNFFSSPS ↟ࣽࣻ+BWB۽ܖয ↟OPSFGMFDUJPONPSFGBTU ↟੍ӝएHFOFSBUFEDPEF ↟QSPHVBSEࢸਃহ
%BHHFSۆޖੌө %BHHFSࣻѐ֛ *OKFDU $PNQPOFOU 4VCDPNQPOFOU .PEVMF 4DPQF 1SPWJEFT
%BHHFSۆޖੌө рױೞѱ !NPEVMF ҕә !$PNQPOFOU োѾ೧חઁҕ !*OKFDU ੑ߉חࣗ࠺
ಕۄڍٜܳ݅যࠅөਃ FTQSFTTP DPGGFF NJML -BUUFё
%FQFOEFODZ(SBQI " $ % #
ಕۄڍٜܳ݅যࠅөਃ FTQSFTTP DPGGFF NJML -BUUFё
%BHHFSۆޖੌө ઁ class Milk class Espresso class Coffee(var espresso: Espresso)
class Latte @Inject constructor( var coffee: Coffee, var milk: Milk) { fun makeLatteDrink() {} }
%BHHFSۆޖੌө ઁ @Module public class DrinkModule { @Provides Milk ProvideMilk(){
return Milk () } @Provides Espresso ProvideEspresso(){ return Espresso () } @Provides Coffee ProvideCoffee( var espresso: Espresso){ return Coffee (espresso) } }
%BHHFSۆޖੌө ઁ @Component(modules = {DrinkModule::class}) public interface DrinkComponent { fun
drink(): Latte fun inject(Activity: MainActivity) }
%BHHFSۆޖੌө ઁ class MainActivity : AppCompatActivity(){ override fun onCreate(savedInstanceState: Bundle?)
{ super.onCreate(savedInstanceState) val latteComponent = DaggerDrinkComponent.builder() .drinkModule(DrinkModule()) .build() latteComponent.inject(this) latteComponent.drink() }
ಕۄڍٜܳ݅যࠅөਃ FTQSFTTP DPGGFF NJML -BUUFё
None
,PJOۆޖੌө ,PUMJOਸࢎਊೞחѐߊٜਸਤೠ पਊੋ"1*ઁҕਸೞח ҃ചػઓࢿੑۨਕ
,PJOۆޖੌө ↟4FSWJDF-PDBUPS1BUUFSOҳഅ ↟LPUMJO%4- بݫੋౠযࢎਊ ↟OPSFGMFDUJPO ↟QVSFLPUMJOਵ۽ܖযઉ
ਫ਼Ӭ 4FSWJDF-PDBUPS1BUUFSOਃj
,PJOۆޖੌө FTQSFTTP NJML NBUFSJBMT -PDBUPS 4FSWJDF-PDBUPS1BUUFSO ,PJOۆޖੌө
,PJOۆޖੌө ਫ਼Ӭ%4-ਃj
ಕۄڍٜܳ݅যࠅөਃ ,PJOۆޖੌө FTQSFTTP NJML NBUFSJBMT -PDBUPS
NPEVMF GBDUPSZ TJOHMF BMTPBMJBTFEBTCFBO CJOE
HFU TDPQF ,PJOࣻѐ֛ ,PJOۆޖੌө
,PJOۆޖੌө ઁ class Milk class Espresso class Coffee(var espresso: Espresso)
class Latte(var coffee: Coffee, var milk: Milk) { fun makeLatteDrink() {} }
,PJOۆޖੌө ઁ class MainApplication: Application() { override fun onCreate(savedInstanceState: Bundle?)
{ super.onCreate(savedInstanceState) //start koin startKoin(this, listOf(myModules)) } } val myModules = module { single { Milk() } single { Espresso() } single { Coffee(get()) } single { Latte(get(), get())} }
,PJOۆޖੌө ઁ inline fun <reified T> get( qualifier: Qualifier? =
null, scope: Scope = this, noinline parameters: ParametersDefinition? = null ): T { return getKoin().get(T::class, qualifier, scope, parameters) ?: error("$this is not registered - Koin is null") }
,PJOۆޖੌө ઁ <reified T> SFJGJFEGVODUJPO
,PJOۆޖੌө ઁ inline fun <reified T> get( qualifier: Qualifier? =
null, scope: Scope = this, noinline parameters: ParametersDefinition? = null ): T { return getKoin().get(T::class, qualifier, scope, parameters) ?: error("$this is not registered - Koin is null") }
,PJOۆޖੌө ઁ class MainActivity : AppCompatActivity(){ val latte: Latte by
inject() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val latte: Latte = get() }
%BHHFS৬,PJO җױޖੌө
↟SFGMFDUJPOਸࢎਊೞঋ ↟য֢ప࣌ࢎਊਵ۽рױೠ٘ࢶ ↟ҕਬغחੋझఢझӔਸױࣽച ↟ࠂೠઓࢿएജ҃ࢸ ↟एਬాపझ %BHHFS
↟۞ழ࠳о֫ ↟৮߷ೠಌಖઁоহ ↟ઓҙ҅ীೠ٘ۨఊয۵ ↟য֢ప࣌ӝ߈ۄஹੌदрטযդ ஹੌয়ߡ٘ ↟݆ஹನք৬݆ੌਃ %BHHFSױ
↟য֢ప࣌җহযஹੌࡅܴ ↟णҗࢸऔ ↟,PUMJO%4-ࢎਊ ,PJO
↟۠ఋী۞оߊࢤ ↟࢜۽যܳߓਕঠೣ ↟ઁܳӝ൨ٞ ,PJOױ
Ӓېࢲ۽যڌѱࢎਊೞחѤؘਃ
ۧѱࢎਊ೧ࠁ ઁ(JUIVCਬѨ࢝ (JU)VC6TFS4FBSDI"1*ࢎਊ IUUQTEFWFMPQFSHJUIVCDPNWTFBSDI
ۧѱࢎਊ೧ࠁ%BHHFS @Singleton class GithubUserApiClient constructor( provideOkHttpClient: OkHttpClient) { var baseUrl
= "https://api.github.com" val userDataService: GithubUserApiService init { val retrofit = Retrofit.Builder() .baseUrl(baseUrl) .client(provideOkHttpClient) .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build() userDataService = retrofit.create(GithubUserApiService::class.java) } }
ۧѱࢎਊ೧ࠁ%BHHFS @Module class ApiClientModule { @Provides fun provideOkHttpClient(): OkHttpClient {
val logging = HttpLoggingInterceptor() logging.level = HttpLoggingInterceptor.Level.BASIC return OkHttpClient.Builder() .addInterceptor(logging) .build() } @Provides fun provideGithubUserApiClient(): GithubUserApiClient { return GithubUserApiClient(provideOkHttpClient()) } }
ۧѱࢎਊ೧ࠁ%BHHFS @Module(includes = [ApiClientModule::class]) class GithubUserListModule(val view: MainPresenter.View) { @Provides
fun provideMainPresenter( presenter: MainPresenterImpl) : MainPresenter { return presenter } @Provides fun provideMainView(): MainPresenter.View { return view } }
ۧѱࢎਊ೧ࠁ%BHHFS @Component(modules = [GithubUserListModule::class]) interface GithubUserListComponent { fun inject(Activity: MainActivity)
}
ۧѱࢎਊ೧ࠁ%BHHFS class MainPresenterImpl @Inject constructor( val view: MainPresenter.View, val client:
GithubUserApiClient) : MainPresenter { @SuppressLint("CheckResult") override fun getGithubUserList(q: String) { client.userDataService.getUserData(q, "repositories", "desc") .subscribeOn(Schedulers.newThread()) .observeOn(AndroidSchedulers.mainThread()) .subscribe({view.onDataLoaded(it)},{view.onDataFailed()},{}) } }
ۧѱࢎਊ೧ࠁ%BHHFS class MainActivity : AppCompatActivity(), MainPresenter.View { @Inject lateinit var
presenter: MainPresenter override fun searchGithubUser(searchWord: String) { if (searchWord.isNullOrBlank()) { toast("Ѩ࢝ػ о হणפ") userFragment.userAdapter.apply { items.clear() notifyDataSetChanged() } } else { presenter.getGithubUserList(searchWord) } } ... }
ۧѱࢎਊ೧ࠁ%BHHFS override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) setSupportActionBar(toolbar) //initialize
AppComponent var component = DaggerGithubUserListComponent.builder() .githubUserListModule(GithubUserListModule(this)) .build() component.inject(this) .. }
ۧѱࢎਊ೧ࠁ%BHHFS @Module(includes = [ApiClientModule::class]) class GithubUserListModule(val view: MainPresenter.View) { @Provides
fun provideMainPresenter( presenter: MainPresenterImpl) : MainPresenter { return presenter } @Provides fun provideMainView(): MainPresenter.View { return view } }
ۧѱࢎਊ೧ࠁزੌೠӝמઁ ઁ(JUIVCਬѨ࢝ (JU)VC6TFS4FBSDI"1*ࢎਊ IUUQTEFWFMPQFSHJUIVCDPNWTFBSDI
ۧѱࢎਊ೧ࠁ,PJO val userlistModule: Module = module { factory { MainPresenterImpl(get())
as MainPresenter<*> } }
ۧѱࢎਊ೧ࠁ,PJO val apiModule: Module = module { single { val
loggingInterceptor = HttpLoggingInterceptor() if (BuildConfig.DEBUG) { loggingInterceptor.level = HttpLoggingInterceptor.Level.BASIC } else { loggingInterceptor.level = HttpLoggingInterceptor.Level.NONE } Retrofit.Builder() .baseUrl("https://api.github.com") .client(OkHttpClient.Builder().addInterceptor(loggingInterceptor).build()) .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build() .create(GithubUserApiService::class.java) } } val appModules = listOf(apiModule, userlistModule)
ۧѱࢎਊ೧ࠁ,PJO class MainApplication :Application() { override fun onCreate() { super.onCreate()
startKoin { // Android context androidContext(this@MainApplication) // modules modules(appModules) } } }
ۧѱࢎਊ೧ࠁ,PJO lass MainActivity : AppCompatActivity(), UserDataList { private val presenter:
MainPresenter<UserData> by inject() override fun searchGithubUser(searchWord: String) { if (searchWord.isNullOrBlank()) { presenter.getGithubUserList("a") userFragment.userAdapter.apply { items.clear() notifyDataSetChanged() } } else { presenter.getGithubUserList(searchWord) } } ... }
ۧѱࢎਊ೧ࠁ,PJO override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) setSupportActionBar(toolbar) presenter.userData
= this ... }
ࣁೠ٘ח(JUIVCীj IUUQTHJUIVCDPNIZVOKJ 'JOE/FX6TFST
ޖܻ۽ંী؊যܾө
%*ܳ൨ٜѱҕࠗ೧ࢲਊ೧оҊ ܻ۽ંӒܻҊܻਗٜ חҗোޖੋо
ઓࢿࢎਊਵ۽ח
↟୶࢚ചܳా೧ػёٜ࢚ഐਊী೧زੋܴоמ ↟۠ఋী߄ੋ٬غযઓࢿ৻ࠗীࢲੑغযઓبܳծ୶Ҋࢎਊоמ ↟ੑػ٘ӝמਸ߄ԲҊरਸٸ ݆٘ܳ߄Եਃоহ ↟ࢤࢿػੋझఢझझ ੋझఢࢤࢿҗࢤݺӝܳ %*ۨਕীࢲঌইࢲ೧ળ ઓࢿࢎਊਵ۽ח
݃ޖܻ Ӓېࢲަॳݶજױ݈ջ
݃ޖܻ ࢎप
݃ޖܻ ࢶఖীח଼ٮܲj
য়ےदрٜয࣊ࢲ хࢎפ