Slide 1

Slide 1 text

Kotlin + RxJava2 + Dagger2 + Orma
 + Retrofit2 Ͱ࡞ΔAndroidΞϓϦ @lvla0805

Slide 2

Slide 2 text

MWMB MWMB Ѫᖒ๖ (Moyuru Aizawa) - Lead Kotlin engineer of Pairs Div. Eureka, Inc.

Slide 3

Slide 3 text

- Pairs - Couples - a member of IAC/Match Group

Slide 4

Slide 4 text

Agenda ‣ Sample Application ‣ ٕज़֓ཁ ‣ Kotlin ‣ RxJava ‣ Retrofit ‣ Orma ‣ Sample ‣ Client ‣ Database ‣ Repository ‣ Activity ‣ Dagger2

Slide 5

Slide 5 text

Sample Application

Slide 6

Slide 6 text

‣ %SPJE,BJHJΞϓϦͷίϯ τϦϏϡʔλʔͷҰཡΛදࣔ͢ Δ͚ͩͷ؆୯ͳΞϓϦ Sample Application https://github.com/lvla/DroidKaigi2017Contributors

Slide 7

Slide 7 text

‣ (JU)VC͔Βz%SPJE,BJHJDPOGFSFODFBQQzͷίϯ τϦϏϡʔλʔΛऔಘ͢Δ ‣ ΦϑϥΠϯͰ΋ίϯτϦϏϡʔλʔΛදࣔͰ͖ΔΑ͏ʹσʔ λϕʔεʹอଘ ‣ ʜ ඞཁͳػೳ

Slide 8

Slide 8 text

ٕज़֓ཁ

Slide 9

Slide 9 text

ٕज़֓ཁ Languages Kotlin 1.1 Network Retrofit 2.1.0 OkHttp 3.6.0 O/R Mapper Orma 4.2.0 Reactive Programming RxJava 2.0.2 Dependency Injection Dagger 2.9

Slide 10

Slide 10 text

build.gradle(Ұ෦) apply plugin: 'kotlin-android' apply plugin: 'kotlin-kapt' android { dataBinding { enabled = true } } dependencies { // Databinding kapt 'com.android.databinding:compiler:2.3.0' // Orma compile "com.github.gfx.android.orma:orma:$ormaVersion" kapt "com.github.gfx.android.orma:orma-processor:$ormaVersion" // ReactiveX compile 'io.reactivex.rxjava2:rxjava:2.0.2' compile 'io.reactivex.rxjava2:rxandroid:2.0.1' // Retrofit compile "com.squareup.retrofit2:retrofit:$retrofitVersion" compile "com.squareup.retrofit2:converter-gson:$retrofitVersion" compile 'com.jakewharton.retrofit:retrofit2-rxjava2-adapter:1.0.0' compile "com.squareup.okhttp3:logging-interceptor:$okHttpVersion" // Dagger2 compile "com.google.dagger:dagger:$daggerVersion" kapt "com.google.dagger:dagger-compiler:$daggerVersion" }

Slide 11

Slide 11 text

Kotlin

Slide 12

Slide 12 text

‣ JetBrains։ൃͷJVM, Android޲͚੩తܕ෇͚ݴޠ ‣ Javaͱͷ100%૬ޓӡ༻ੑ ‣ ܕਪ࿦ ‣ Null҆શ ‣ ؔ਺Ϧςϥϧ Kotlin

Slide 13

Slide 13 text

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { … val message = "Clicked" button.setOnClickListener { textView.text = message } } } Kotlin

Slide 14

Slide 14 text

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { … val message = "Clicked" button.setOnClickListener { textView.text = message } } } Kotlin

Slide 15

Slide 15 text

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { … val message = "Clicked" button.setOnClickListener { textView.text = message } } } Kotlin

Slide 16

Slide 16 text

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { … val message = "Clicked" button.setOnClickListener { textView.text = message } } } Kotlin

Slide 17

Slide 17 text

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { … val message = "Clicked" button.setOnClickListener { textView.text = message } } } Kotlin

Slide 18

Slide 18 text

class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { … val message = "Clicked" button.setOnClickListener { textView.text = message } } } Kotlin

Slide 19

Slide 19 text

RxJava

Slide 20

Slide 20 text

‣ ϦΞΫςΟϒϓϩάϥϛϯάϑϨʔϜϫʔΫ ‣ ؂ࢹՄೳͳStreamΛ࢖ͬͨඇಉظॲཧ RxJava

Slide 21

Slide 21 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 22

Slide 22 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 23

Slide 23 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 24

Slide 24 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 25

Slide 25 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 26

Slide 26 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 27

Slide 27 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 28

Slide 28 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 29

Slide 29 text

RxJava val observable = Observable.create { subscriber -> intArray.forEach { subscriber.onNext(it) } subscriber.onComplete() } observable.subscribe( { num -> println(num) }, { throwable -> throwable.printStackTrace() }, { println("onCompleted") })

Slide 30

Slide 30 text

RxJava masterClient().fetch() .flatMap { loginClient.login() } .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.main()) .subscribe( { ... }, { ... }, { moveToMain() } )

Slide 31

Slide 31 text

RxJava masterClient().fetch() .flatMap { loginClient.login() } .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.main()) .subscribe( { ... }, { ... }, { moveToMain() } )

Slide 32

Slide 32 text

RxJava masterClient().fetch() .flatMap { loginClient.login() } .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.main()) .subscribe( { ... }, { ... }, { moveToMain() } )

Slide 33

Slide 33 text

RxJava masterClient().fetch() .flatMap { loginClient.login() } .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.main()) .subscribe( { ... }, { ... }, { moveToMain() } )

Slide 34

Slide 34 text

RxJava masterClient().fetch() .flatMap { loginClient.login() } .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.main()) .subscribe( { ... }, { ... }, { moveToMain() } )

Slide 35

Slide 35 text

Retrofit

Slide 36

Slide 36 text

‣ Square։ൃͷType Safe HTTP Client ‣ OkHttpͰ௨৴Λߦ͍ɺJsonΛ೚ҙͷܕͰฦ٫ͯ͘͠Ε Δɻ ‣ RxJavaରԠ Retrofit

Slide 37

Slide 37 text

Retrofitͷੜ੒

Slide 38

Slide 38 text

Retrofit val retrofit = Retrofit.Builder() .client(OkHttpClient()) .baseUrl("https://api.github.com") .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build()

Slide 39

Slide 39 text

Retrofit val retrofit = Retrofit.Builder() .client(OkHttpClient()) .baseUrl("https://api.github.com") .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build()

Slide 40

Slide 40 text

Retrofit val retrofit = Retrofit.Builder() .client(OkHttpClient()) .baseUrl("https://api.github.com") .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build()

Slide 41

Slide 41 text

Retrofit val retrofit = Retrofit.Builder() .client(OkHttpClient()) .baseUrl("https://api.github.com") .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build()

Slide 42

Slide 42 text

Retrofit val retrofit = Retrofit.Builder() .client(OkHttpClient()) .baseUrl("https://api.github.com") .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build()

Slide 43

Slide 43 text

Retrofit val retrofit = Retrofit.Builder() .client(OkHttpClient()) .baseUrl("https://api.github.com") .addCallAdapterFactory(RxJava2CallAdapterFactory.create()) .addConverterFactory(GsonConverterFactory.create()) .build() Gson, Jackson, Moshi...

Slide 44

Slide 44 text

Interface

Slide 45

Slide 45 text

Retrofit interface GitHubService { @GET("/repos/{owner}/{repo}/contributors") fun fetchContributors( @Path(“owner") owner: String, @Path(“repo") repository: String): Observable> }

Slide 46

Slide 46 text

Retrofit interface GitHubService { @GET("/repos/{owner}/{repo}/contributors") fun fetchContributors( @Path(“owner") owner: String, @Path(“repo") repository: String): Observable> }

Slide 47

Slide 47 text

Retrofit interface GitHubService { @GET("/repos/{owner}/{repo}/contributors") fun fetchContributors( @Path(“owner") owner: String, @Path(“repo") repository: String): Observable> }

Slide 48

Slide 48 text

Retrofit val gitHubService = retrofit.create(GitHubService::class.java) gitHubService.fetchContributors("Owner", "Repo") .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> show(contributors) }, { throwable -> throwable.printStackTrace() })

Slide 49

Slide 49 text

Retrofit val gitHubService = retrofit.create(GitHubService::class.java) gitHubService.fetchContributors("Owner", "Repo") .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> show(contributors) }, { throwable -> throwable.printStackTrace() })

Slide 50

Slide 50 text

Retrofit val gitHubService = retrofit.create(GitHubService::class.java) gitHubService.fetchContributors("Owner", "Repo") .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> show(contributors) }, { throwable -> throwable.printStackTrace() })

Slide 51

Slide 51 text

Retrofit val gitHubService = retrofit.create(GitHubService::class.java) gitHubService.fetchContributors("Owner", "Repo") .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> show(contributors) }, { throwable -> throwable.printStackTrace() })

Slide 52

Slide 52 text

‣ HTTP௨৴ͳͲɺΠϕϯτ͕Ұճ͔͠ى͜Βͳ͍ετ ϦʔϜΛѻ͏৔߹͸ObservableΑΓSingleͷ͕ϕλʔ ‣ ࠓճ͸આ໌Λ؆ུԽ͢ΔͨΊʹObservableΛ࢖༻͠· ͨ͠ɻ TIPS

Slide 53

Slide 53 text

Orma

Slide 54

Slide 54 text

‣ "OESPJE42-JUF%BUBCBTFΉ͚ͷ03. ‣ ίϯύΠϧ࣌ʹΞϊςʔγϣϯΛݩʹ$36%ͷϔϧύʔ ΫϥεΛੜ੒ͯ͘͠ΕΔɻ Orma

Slide 55

Slide 55 text

Tableఆٛ

Slide 56

Slide 56 text

Orma @Table data class Contributor( @PrimaryKey(auto = false) @Setter("name") val name: String, @Column @Setter("avatarUrl") val avatarUrl: String?, @Column @Setter("htmlUrl") val htmlUrl: String?, @Column @Setter("contributions") val contributions: Int )

Slide 57

Slide 57 text

Orma @Table data class Contributor( @PrimaryKey(auto = false) @Setter("name") val name: String, @Column @Setter("avatarUrl") val avatarUrl: String?, @Column @Setter("htmlUrl") val htmlUrl: String?, @Column @Setter("contributions") val contributions: Int )

Slide 58

Slide 58 text

Orma @Table data class Contributor( @PrimaryKey(auto = false) @Setter("name") val name: String, @Column @Setter("avatarUrl") val avatarUrl: String?, @Column @Setter("htmlUrl") val htmlUrl: String?, @Column @Setter("contributions") val contributions: Int )

Slide 59

Slide 59 text

Orma @Table data class Contributor( @PrimaryKey(auto = false) @Setter("name") val name: String, @Column @Setter("avatarUrl") val avatarUrl: String?, @Column @Setter("htmlUrl") val htmlUrl: String?, @Column @Setter("contributions") val contributions: Int )

Slide 60

Slide 60 text

OrmaDatabaseੜ੒

Slide 61

Slide 61 text

Orma val orma = OrmaDatabase.builder(context) .writeOnMainThread(AccessThreadConstraint.FATAL) .readOnMainThread(AccessThreadConstraint.FATAL) .build()

Slide 62

Slide 62 text

Orma val orma = OrmaDatabase.builder(context) .writeOnMainThread(AccessThreadConstraint.FATAL) .readOnMainThread(AccessThreadConstraint.FATAL) .build()

Slide 63

Slide 63 text

Orma val orma = OrmaDatabase.builder(context) .writeOnMainThread(AccessThreadConstraint.FATAL) .readOnMainThread(AccessThreadConstraint.FATAL) .build()

Slide 64

Slide 64 text

CRUD

Slide 65

Slide 65 text

Insert orma.prepareInsertIntoContributor(OnConflict.REPLACE) .executeAll(contributors)

Slide 66

Slide 66 text

Insert orma.transactionSync { orma.prepareInsertIntoContributor(OnConflict.REPLACE) .executeAll(contributors) }

Slide 67

Slide 67 text

Insert orma.transactionAsCompletable { orma.prepareInsertIntoContributor(OnConflict.REPLACE) .executeAll(contributors) }

Slide 68

Slide 68 text

Select orma.selectFromContributor() .executeAsObservable() .toList()

Slide 69

Slide 69 text

Select orma.selectFromContributor() .nameEq("lvla") .executeAsObservable() .toList()

Slide 70

Slide 70 text

Sample

Slide 71

Slide 71 text

Client

Slide 72

Slide 72 text

Client class GitHubClient(private val service: GitHubService) { fun fetchContributors(): Observable> { return service.fetchContributors(“DroidKaigi", "conference-app-2017") }

Slide 73

Slide 73 text

Client class GitHubClient(private val service: GitHubService) { fun fetchContributors(): Observable> { return service.fetchContributors(“DroidKaigi", "conference-app-2017") }

Slide 74

Slide 74 text

Dao

Slide 75

Slide 75 text

Dao class ContributorDao(orma: OrmaDatabase) { fun insert(contributors: List) { orma.transactionSync { orma.prepareInsertIntoContributor(OnConflict.REPLACE) .executeAll(contributors) } } fun findAll(): List { return orma.selectFromContributor() .executeAsObservable() .toList() } }

Slide 76

Slide 76 text

Dao class ContributorDao(orma: OrmaDatabase) { fun insert(contributors: List) { orma.transactionSync { orma.prepareInsertIntoContributor(OnConflict.REPLACE) .executeAll(contributors) } } fun findAll(): List { return orma.selectFromContributor() .executeAsObservable() .toList() } }

Slide 77

Slide 77 text

Dao class ContributorDao(orma: OrmaDatabase) { fun insert(contributors: List) { orma.transactionSync { orma.prepareInsertIntoContributor(OnConflict.REPLACE) .executeAll(contributors) } } fun findAll(): List { return orma.selectFromContributor() .executeAsObservable() .toList() } }

Slide 78

Slide 78 text

Repository

Slide 79

Slide 79 text

Repository class ContributorRepository( private val client: GitHubClient, private val dao: ContributorDao) { fun getContributors(): Observable> { return client.fetchContributors() .doOnNext { list -> dao.insert(list) } .onErrorReturn { dao.findAll() } } }

Slide 80

Slide 80 text

Repository class ContributorRepository( private val client: GitHubClient, private val dao: ContributorDao) { fun getContributors(): Observable> { return client.fetchContributors() .doOnNext { list -> dao.insert(list) } .onErrorReturn { dao.findAll() } } }

Slide 81

Slide 81 text

Repository class ContributorRepository( private val client: GitHubClient, private val dao: ContributorDao) { fun getContributors(): Observable> { return client.fetchContributors() .doOnNext { list -> dao.insert(list) } .onErrorReturn { dao.findAll() } } }

Slide 82

Slide 82 text

Repository class ContributorRepository( private val client: GitHubClient, private val dao: ContributorDao) { fun getContributors(): Observable> { return client.fetchContributors() .doOnNext { list -> dao.insert(list) } .onErrorReturn { dao.findAll() } } }

Slide 83

Slide 83 text

Activity

Slide 84

Slide 84 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 85

Slide 85 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 86

Slide 86 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 87

Slide 87 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 88

Slide 88 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 89

Slide 89 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 90

Slide 90 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 91

Slide 91 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 92

Slide 92 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 93

Slide 93 text

Activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 94

Slide 94 text

ґଘੑͷղܾ͸Dagger2 ʹ೚ͤΑ͏ɻ

Slide 95

Slide 95 text

Dagger2

Slide 96

Slide 96 text

‣ Google։ൃͷJava/Android޲͚DIίϯςφ ‣ ΞϊςʔγϣϯΛར༻ͨ͠ґଘੑͷղܾ ‣ ߴ଎ Dagger2

Slide 97

Slide 97 text

ґଘੑͷάϥϑ Repository Dao Client Service Orma Context Retrofit OkHttp Activity

Slide 98

Slide 98 text

ґଘੑͷղܾΛ͢Δͷʹඞཁͳ΋ͷ Injectee Component Module Inject͞ΕΔଆ Inject͢Δଆ ґଘੑͷఏڙऀ
 (Inject͢Δ෺)

Slide 99

Slide 99 text

Module @Module class ApplicationModule(private val applicationContext: App) { @Provides fun provideContext(): Context {…} @Provides fun provideOkHttp(): OkHttpClient {…} @Provides fun provideRetrofit(o: OkHttpClient): Retrofit {…} @Provides fun provideOrma(c: Context): OrmaHolder {…} @Provides fun provide…Dao(oh: OrmaHolder): ContributorDao {…} @Provides fun provideGitHubService(r: Retrofit): GitHubService {…} @Provides fun provideGitHubClient(s: GitHubService): GitHubClient {…} }

Slide 100

Slide 100 text

Module @Module class ApplicationModule(private val applicationContext: App) { @Provides fun provideContext(): Context {…} @Provides fun provideOkHttp(): OkHttpClient {…} @Provides fun provideRetrofit(o: OkHttpClient): Retrofit {…} @Provides fun provideOrma(c: Context): OrmaHolder {…} @Provides fun provide…Dao(oh: OrmaHolder): ContributorDao {…} @Provides fun provideGitHubService(r: Retrofit): GitHubService {…} @Provides fun provideGitHubClient(s: GitHubService): GitHubClient {…} }

Slide 101

Slide 101 text

Module @Module class ApplicationModule(private val applicationContext: App) { @Provides fun provideContext(): Context {…} @Provides fun provideOkHttp(): OkHttpClient {…} @Provides fun provideRetrofit(o: OkHttpClient): Retrofit {…} @Provides fun provideOrma(c: Context): OrmaHolder {…} @Provides fun provide…Dao(oh: OrmaHolder): ContributorDao {…} @Provides fun provideGitHubService(r: Retrofit): GitHubService {…} @Provides fun provideGitHubClient(s: GitHubService): GitHubClient {…} }

Slide 102

Slide 102 text

Module @Module class ApplicationModule(private val applicationContext: App) { @Provides fun provideContext(): Context {…} @Provides fun provideOkHttp(): OkHttpClient {…} @Provides fun provideRetrofit(o: OkHttpClient): Retrofit {…} @Provides fun provideOrma(c: Context): OrmaHolder {…} @Provides fun provide…Dao(oh: OrmaHolder): ContributorDao {…} @Provides fun provideGitHubService(r: Retrofit): GitHubService {…} @Provides fun provideGitHubClient(s: GitHubService): GitHubClient {…} }

Slide 103

Slide 103 text

TIPS @Module class ApplicationModule(private val applicationContext: App) { @Provides fun provideContext(): Context {…} @Provides fun provideOkHttp(): OkHttpClient {…} @Provides fun provideRetrofit(o: OkHttpClient): Retrofit {…} @Provides fun provideOrma(c: Context): OrmaHolder {…} @Provides fun provide…Dao(oh: OrmaHolder): ContributorDao {…} @Provides fun provideGitHubService(r: Retrofit): GitHubService {…} @Provides fun provideGitHubClient(s: GitHubService): GitHubClient {…} }

Slide 104

Slide 104 text

‣ Constructor Injection ‣ SubComponent ‣ Include Module ‣ …. TIPS

Slide 105

Slide 105 text

Component @Singleton @Component(modules = arrayOf(ApplicationModule::class)) interface ApplicationComponent { fun inject(a: MainActivity) }

Slide 106

Slide 106 text

Component @Singleton @Component(modules = arrayOf(ApplicationModule::class)) interface ApplicationComponent { fun inject(a: MainActivity) }

Slide 107

Slide 107 text

Component @Singleton @Component(modules = arrayOf(ApplicationModule::class)) interface ApplicationComponent { fun inject(a: MainActivity) }

Slide 108

Slide 108 text

Component @Singleton @Component(modules = arrayOf(ApplicationModule::class)) interface ApplicationComponent { fun inject(a: MainActivity) }

Slide 109

Slide 109 text

Field Injection class MainActivity : AppCompatActivity() { @Inject lateinit var repository: ContributorRepository }

Slide 110

Slide 110 text

AnnotationProcessing Injectee Component Module Dagger2 ԿॲʹԿΛInject͢΂͖͔͕Θ͔Δ

Slide 111

Slide 111 text

AnnotationProcessing Injectee Component Module Dagger2 ͜ͷComponent͕
 ԿॲʹԿΛInjectͰ͖Δͷ͔͕Θ͔Δ

Slide 112

Slide 112 text

AnnotationProcessing Injectee Component Module Dagger2 DaggerComponent Implement Dagger2͕Componentͷ࣮૷ΫϥεΛੜ੒

Slide 113

Slide 113 text

ApplicationModule Repository Dao Client Service Orma Context Retrofit OkHttp Module

Slide 114

Slide 114 text

ApplicationComponent Repository Dao Client Service Orma Context Retrofit OkHttp Module Component

Slide 115

Slide 115 text

ApplicationComponent Repository Dao Client Service Orma Context Retrofit OkHttp Activity Inject Module Component

Slide 116

Slide 116 text

Application class class App : Application() { lateinit var component: ApplicationComponent override fun onCreate() { component = DaggerApplicationComponent.builder() .applicationModule(ApplicationModule(this)) .build() } }

Slide 117

Slide 117 text

Application class class App : Application() { lateinit var component: ApplicationComponent override fun onCreate() { component = DaggerApplicationComponent.builder() .applicationModule(ApplicationModule(this)) .build() } }

Slide 118

Slide 118 text

Application class class App : Application() { lateinit var component: ApplicationComponent override fun onCreate() { component = DaggerApplicationComponent.builder() .applicationModule(ApplicationModule(this)) .build() } }

Slide 119

Slide 119 text

Application class class App : Application() { lateinit var component: ApplicationComponent override fun onCreate() { component = DaggerApplicationComponent.builder() .applicationModule(ApplicationModule(this)) .build() } }

Slide 120

Slide 120 text

Application class class App : Application() { lateinit var component: ApplicationComponent override fun onCreate() { component = DaggerApplicationComponent.builder() .applicationModule(ApplicationModule(this)) .build() } }

Slide 121

Slide 121 text

Application class class App : Application() { lateinit var component: ApplicationComponent override fun onCreate() { component = DaggerApplicationComponent.builder() .applicationModule(ApplicationModule(this)) .build() } }

Slide 122

Slide 122 text

Application class class App : Application() { val component: ApplicationComponent by lazy { DaggerApplicationComponent.builder() .applicationModule(ApplicationModule(this)) .build() } }

Slide 123

Slide 123 text

MainActivity class MainActivity : AppCompatActivity() { @Inject lateinit var repository: ContributorRepository override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) (application as App).component.inject(this) repository.getContributors().... } }

Slide 124

Slide 124 text

MainActivity class MainActivity : AppCompatActivity() { @Inject lateinit var repository: ContributorRepository override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) (application as App).component.inject(this) repository.getContributors().... } }

Slide 125

Slide 125 text

MainActivity class MainActivity : AppCompatActivity() { @Inject lateinit var repository: ContributorRepository override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) (application as App).component.inject(this) repository.getContributors().... } }

Slide 126

Slide 126 text

Before class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val retrofit = Retrofit.Builder().......build() val orma = OrmaDatabase.builder(context).......build() val service = retrofit.create(GitHubService::class.java) val client = ContributorClient(service) val dao = ContributorDao(orma) val repository = ContributorRepository(client, dao) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 127

Slide 127 text

After class MainActivity : AppCompatActivity() { @Inject lateinit var repository: ContributorRepository override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) (application as App).component.inject(this) repository.getContributors() .subscribeOn(Schedulers.io()) .observeOn(AndroidSchedulers.mainThread()) .subscribe( { contributors -> showContributors(contributors) }, { Timber.e(it, "getContributors") } ) } }

Slide 128

Slide 128 text

Conclusion

Slide 129

Slide 129 text

‣ KotlinͰ৑௕ͳهड़ΛݮΒ͢ࣄ͕Ͱ͖Δ ‣ RxJavaͰॊೈͳΠϕϯτॲཧ/ඇಉظॲཧΛߦ͏͜ͱ͕ Ͱ͖Δ ‣ RetrofitͰHTTP௨৴ΛRxJavaͰѻ͑Δ ‣ OrmaʹSQLiteͷॲཧΛ೚ͤΒΕΔ ‣ Dagger2ʹґଘੑͷղܾΛҕৡͰ͖Δ Conclusion

Slide 130

Slide 130 text

Thank you