狠狠撸

袦袠啸袗袠袥
袣袪袝小孝鞋携袧袠袧袨袙
袗袧袛袪袨袠袛袪袗袟袪袗袘袨孝效袠袣
t.me/krest_m

DAGGER鈥橝?
袝小孝鞋袥袠袞袠袟袧鞋袘袝袟
NO MORE!
2
DAGGSTASY

袝小孝鞋袥袠袞袠袟袧鞋袘袝袟 DAGGER鈥橝?
袗袚袝袧袛袗
鈻窪EPENDENCY INJECTION
鈻感樞澬⑿犘�:
鈻窵IGHTSABER vs KODEIN vs TOOTHPICK
LIGHTSABER
KODEIN
TOOTHPICK
3

INVERSION
OF
CONTROL
DEPENDENCY
INVERSION
PRINCIPLE
DEPENDENCY
INJECTION
"HOLLYWOOD PRINCIPLE: DON'T CALL US, WE'LL CALL YOU"
DEPENDENCY INJECTION - 褉械邪谢懈蟹邪褑懈褟 DIP.
袠薪褋褌褉褍屑械薪褌锌械褉械写邪褔懈泻谢邪褋褋褍械谐芯
蟹邪胁懈褋懈屑芯褋褌械泄.
4

"HOLLYWOOD PRINCIPLE鈥�:
DON'T CALL US, WE'LL CALL YOU
5

5
class Tweeter {
fun tweet(message: String) {
val api: TweeterApi = TweeterApi()
api.sendTweet(message)
}
}

class Tweeter(val api: TweeterApi) {
fun tweet(message: String) {
api.sendTweet(message)
}
}
6

孝袝袣校些袗携小袠孝校袗笑袠携袧袗袪蝎袧袣袝
7

孝袝袣校些袗携小袠孝校袗笑袠携袧袗袪蝎袧袣袝
DAGGER MONOPOLY
7

袗袚袝袧袛袗
LIGHTSABER
KODEIN
TOOTHPICK
8

LIGHTSABER
MICHAELROCKS/LIGHTSABER
鈻� 孝械泻褍褖邪褟胁械褉褋懈褟
鈻� 袦芯褌懈胁邪褑懈褟
鈻� 袚谢邪胁薪邪褟芯褋芯斜械薪薪芯褋褌褜
9

LIGHTSABER
10
0.9.0-beta

LIGHTSABER
11
袥褢谐泻懈泄懈斜褘褋褌褉褘泄 DI
& Compile Time
& 袧械蟹邪胁懈褋褟褖懈泄芯褌 APT

LIGHTSABER
12
袠褋锌芯谢褜蟹褍械褌锌邪褌褔懈薪谐
斜邪泄褌泻芯写邪胁屑械褋褌芯
Annotation Processing

袗袚袝袧袛袗
LIGHTSABER
KODEIN
TOOTHPICK
13

KODEIN
SALOMONBRYS/KODEIN
14

KODEIN
SALOMONBRYS/KODEIN
15
4.0.0

KODEIN
SALOMONBRYS/KODEIN
16
DSL-写械泻谢邪褉邪褌懈胁薪褘泄 DI
& 袠写懈芯屑邪褌懈褔薪褘泄
& Debuggable + Docs

KODEIN
SALOMONBRYS/KODEIN
17
袩褉芯褋褌芯褌邪胁懈褋锌芯谢褜蟹芯胁邪薪懈懈
& Kotlin friendly

袗袚袝袧袛袗
LIGHTSABER
KODEIN
TOOTHPICK
18

TOOTHPICK
STEPHANENICOLAS/TOOTHPICK
19

TOOTHPICK
20
1.0.7

TOOTHPICK
21
袩褉芯褖械, 褔械屑 Dagger
& 孝械褋褌懈褉褍械屑芯褋褌褜
& Scope

TOOTHPICK
22
孝械褋褌懈褉褍械屑芯褋褌褜懈蟹泻芯褉芯斜泻懈
& 2 DAGs

袗袚袝袧袛袗
LIGHTSABER
KODEIN
TOOTHPICK
23

袝小孝鞋袥袠袞袠袟袧鞋袘袝袟 DAGGER鈥橝? 24
LIGHTSABER
VS
KODEIN
VS
TOOTHPICK

鈻感炐⌒澬炐捫澬� 袩袪袠袧笑袠袩蝎
鈻感斝曅毿浶愋犘愋π樞� 袟袗袙袠小袠袦袨小孝袝袡
鈻窼COPES
鈻感⑿曅⌒⑿樞犘炐捫愋澬樞�
LIGHTSABER VS KODEIN VS TOOTHPICK 25
袣袪袠孝袝袪袠袠

袨小袧袨袙袧蝎袝袩袪袠袧笑袠袩蝎
LIGHTSABER
26

LIGHTSABER
鈻窵ightsaber 褉邪斜芯褌邪械褌薪邪
芯褋薪芯胁械 JSR 330
26

LIGHTSABER
鈻窵ightsaber 褉邪斜芯褌邪械褌薪邪
鈻感愋叫叫狙傂把喰秆�
胁械褕邪械褌褋褟薪邪泻芯薪褋褌褉褍泻褌芯褉,
锌芯谢械懈谢懈屑械褌芯写泻谢邪褋褋邪
@Inject
26

LIGHTSABER
val injector = Lightsaber.get()
.createInjector(
AppComponent(app = this)
)
injector.injectMembers(this)
27

LIGHTSABER
.createInjector(
)
28

LIGHTSABER
.createInjector(
)
29

.createInjector(
)
LIGHTSABER
袨小袧袨袙袧蝎袝袩袪袠袧笑袠袩蝎 30

KODEIN
31

KODEIN
鈻感浹懶承盒感� 褋褌邪褉褌
31

KODEIN
鈻窲ava-only @Inject
31

KODEIN
鈻窲ava-only
鈻窻untime-锌褉芯胁械褉泻邪谐褉邪褎邪
@Inject
31

KODEIN
鈻窲ava-only
鈻窴odein Kotlin
@Inject
31

val kodein = Kodein {
import(appModule(this@App))
}
val injector = KodeinInjector()
val prefs: SharedPreferences by injector.instance()
override fun onCreate() {
super.onCreate()
injector.inject(kodein)
}
32
KODEIN

}
super.onCreate()
}
33
KODEIN

}
super.onCreate()
}
34
KODEIN

}
super.onCreate()
}
35
KODEIN

}
super.onCreate()
}
36
KODEIN

}
super.onCreate()
}
37
KODEIN

TOOTHPICK

TOOTHPICK
鈻窽oothpick 褉邪斜芯褌邪械褌薪邪

TOOTHPICK
鈻窽oothpick 褉邪斜芯褌邪械褌薪邪
鈻感愋叫叫狙傂把喰秆�
胁械褕邪械褌褋褟薪邪泻芯薪褋褌褉褍泻褌芯褉,
锌芯谢械懈谢懈屑械褌芯写泻谢邪褋褋邪
@Inject

val scope = Toothpick.openScopes(app, this)
scope.installModules(ActivityModule(this))
Toothpick.inject(this, scope)
39
TOOTHPICK

40
TOOTHPICK

41
TOOTHPICK

42
TOOTHPICK

鈻窼COPES

袛袝袣袥袗袪袗笑袠携袟袗袙袠小袠袦袨小孝袝袡 44
LIGHTSABER

袛袝袣袥袗袪袗笑袠携袟袗袙袠小袠袦袨小孝袝袡
鈻窩onstructors
44
LIGHTSABER

鈻窩onstructors
鈻窶odule
44
LIGHTSABER

鈻窩onstructors
鈻窶odule
鈻窩omponent
44
LIGHTSABER

@Module
class MainModule(val app: Application) {
@Provides
@Singleton
@Named(Tag.APPLICATION_CONTEXT)
private fun context(): Context = app
@Provides
private fun presenter(repo: Repository): Presenter
= PresenterImpl(repo)
}
LIGHTSABER

@Module
@Provides
@Singleton
@Provides
}
46
LIGHTSABER

@Module
@Provides
@Singleton
@Provides
}
47
LIGHTSABER

@Module
@Provides
@Singleton
@Provides
}
48
LIGHTSABER

@Component
class AppComponent(
val app: Application
) {
@Provides
fun provideAppModule()
= AppModule(app)
}
49
LIGHTSABER

@Component
class AppComponent(
) {
@Provides
= AppModule(app)
}
50
LIGHTSABER

@Component
class AppComponent(
) {
@Provides
= AppModule(app)
}
51
LIGHTSABER

LIGHTSABER

鈻� Lazy injections
@Inject
lateinit var presenter: Lazy<Presenter>
52
LIGHTSABER

@Inject
lateinit var presenter: Provider<Presenter>
@Inject
52
鈻� Provider injections
LIGHTSABER

@Inject
lateinit var presenter: Provider<Presenter>
@Inject
52
鈻� Provider injections
鈻� Custom Scope & Quali铿乪rs
LIGHTSABER

KODEIN

鈻窶odules, Modules, Modules鈥�
53
KODEIN

Kodein.Module {
import(module = sampleModule)
bind<Context>(Tag.APP_CONTEXT) with singleton {
app
}
bind<Repository>() with singleton {
RepositoryImpl(
context = instance(Tag.APP_CONTEXT),
sharedPreferences = instance()
)
}
}
54
KODEIN

Kodein.Module {
app
}
RepositoryImpl(
)
}
}
55
KODEIN

Kodein.Module {
app
}
RepositoryImpl(
)
}
}
56
KODEIN

Kodein.Module {
app
}
RepositoryImpl(
)
}
}
57
KODEIN

Kodein.Module {
app
}
RepositoryImpl(
)
}
}
58
KODEIN

Kodein.Module {
app
}
RepositoryImpl(
)
}
}
59
KODEIN

KODEIN

鈻� Factory
bind<RandomUtil>() with factory { num: Int ->
FakeRandom(num)
}
60
KODEIN

鈻� Provider
鈻� Factory
FakeRandom(num)
}
bind<RandomUtil>() with provider {
FakeRandom(2)
}
60
KODEIN

鈻� Provider
鈻� And many others
鈻� Factory
FakeRandom(num)
}
bind<RandomUtil>() with provider {
FakeRandom(2)
}
60
KODEIN

TOOTHPICK

鈻窩onstructors
61
TOOTHPICK

鈻窩onstructors
鈻窶odule
61
TOOTHPICK

class Module(val app: Application) : Module() {
init {
bind(Context ::class.java)
.withName(Tag.APP_CONTEXT)
.toInstance(app)
bind(Repository ::class.java)
.to(RepositoryImpl ::class.java)
.singletonInScope()
}
}
62
TOOTHPICK

init {
.toInstance(app)
.singletonInScope()
}
}
63
TOOTHPICK

init {
.toInstance(app)
.singletonInScope()
}
}
64
TOOTHPICK

init {
.toInstance(app)
.singletonInScope()
}
}
65
TOOTHPICK

init {
.toInstance(app)
.singletonInScope()
}
}
TOOTHPICK

bind(Interface ::class.java)
.to****(Class ::class.java)
67
TOOTHPICK

bind(Interface ::class.java)
.to****(Class ::class.java)
68
TOOTHPICK

鈻窼COPES

SCOPES
鈻感愋叫叫狙傂把喰感� 锌芯 JSR 330
70
LIGHTSABER

SCOPES
鈻感愋叫叫狙傂把喰感� 锌芯 JSR 330
70
LIGHTSABER
@Scope
@Documented
@Retention(RUNTIME)
public @interface Singleton {}

@Module
class AppModule(val app: Application) {
@Provides
@Singleton
}
SCOPES 71
LIGHTSABER

SCOPES
@Singleton
class PresenterImpl()
72
LIGHTSABER

SCOPES
鈻窧indigs & Module
73
KODEIN

RepositoryImpl(
context = instance(APP_CONTEXT),
api = instance()
)
}
SCOPES
鈻窧indigs & Module
73
KODEIN

SCOPES
袦械褋褌芯, 谐写械胁褘锌芯谢薪褟褞褌褋褟
懈薪褗械泻褑懈懈
SCOPE
74
TOOTHPICK

SCOPES
val scope = Toothpick.openScope(this)
scope.installModules(AppModule(this))
Toothpick.closeScope(this)
SCOPE
74
TOOTHPICK

SCOPES
SCOPE
75
TOOTHPICK

SCOPES
SCOPE BINDINGSModule
76
TOOTHPICK

SCOPES
APPLICATION
SCOPE
ACTIVITY
SCOPE
FRAGMENT 2
SCOPE
FRAGMENT 1
SCOPE
FRAGMENT 3
SCOPE
77
TOOTHPICK

bind(Context ::class.java).toInstance(app)
.singletonInScope()
SCOPES 78
TOOTHPICK

bind(Context ::class.java).toInstance(app)
.singletonInScope()
SCOPES 79
TOOTHPICK

SCOPES
鈻� 袗薪薪芯褌邪褑懈懈锌芯 JSR 330
80
TOOTHPICK

SCOPES
鈻� 袣邪褋褌芯屑薪褘械邪薪薪芯褌邪褑懈懈
80
TOOTHPICK

SCOPES
@javax.inject.Scope
@Documented
@Retention(AnnotationRetention.RUNTIME)
annotation class PresenterScope
80
TOOTHPICK

SCOPES
val scope = Toothpick.openScopes(
application,
PresenterScope ::class.java,
this)
@javax.inject.Scope
@Documented
@Retention(AnnotationRetention.RUNTIME)
annotation class PresenterScope
80
TOOTHPICK

鈻窼COPES

孝袝小孝袠袪袨袙袗袧袠袝 82
LIGHTSABER

孝袝小孝袠袪袨袙袗袧袠袝
鈻� 袧褍卸薪芯锌褉芯褋褌芯锌械褉械芯锌褉械写械谢褟褌褜
胁褋械薪械芯斜褏芯写懈屑褘械屑芯写褍谢懈胁
褌械褋褌邪褏
82
LIGHTSABER

鈻� 袧褍卸薪芯锌褉芯褋褌芯锌械褉械芯锌褉械写械谢褟褌褜
胁褋械薪械芯斜褏芯写懈屑褘械屑芯写褍谢懈胁
褌械褋褌邪褏
@Module
class Module {
@Provides
private fun presenter(): MainPresenter
= FakePresenter()
}
82
LIGHTSABER

KODEIN

鈻� 肖谢邪谐 allowOverride = true
83
KODEIN

class TestApp : App() {
override val kodein: Kodein by lazy {
Kodein {
import(
module = appModule(this@TestApp),
allowOverride = true
)
constant("TEST", overrides = true) with 4L
}
}
}
鈻� 肖谢邪谐 allowOverride = true
83
KODEIN

TOOTHPICK

鈻感毿感恍恍笛€-褎懈褔邪
84
TOOTHPICK

@Mock
private lateinit var repository: Repository
@Rule
@JvmField
var toothPickRule = ToothPickRule(this, app)
84
TOOTHPICK

@Mock
private lateinit var repository: Repository
@Rule
@JvmField
var toothPickRule = ToothPickRule(this, app)
85
TOOTHPICK

LIGHTSABER.CONCLUSION()

鈻感懷€邪褌锌芯写褍褏褍褋 Dagger
86

鈻感澬笛� 斜芯谢懈褋 APT
86

鈻感捫笛€斜芯蟹薪褘泄
86

鈻感澬笛冃葱拘毙窖嬓� 写谢褟褌械褋褌芯胁
86

鈻感澬笛冃葱拘毙窖嬓� 写谢褟褌械褋褌芯胁
鈻感澬笛€械谢懈蟹薪邪褟胁械褉褋懈褟
86

KODEIN.CONCLUSION()
87

KODEIN.CONCLUSION()
鈻感斝敌寡佈傂残秆傂敌谎屝叫� 谢褢谐泻懈泄
87

KODEIN.CONCLUSION()
鈻窴otlin friendly
87

KODEIN.CONCLUSION()
87

KODEIN.CONCLUSION()
鈻感� 褌械褋褌懈褉芯胁邪薪懈械屑褍卸械
谢械谐褔械
87

TOOTHPICK.CONCLUSION()

鈻感斝笛傂靶谎屝窖嬓� Scope
88

鈻感懷€芯写谢褟褌械褋褌芯胁
88

鈻窩ompile + Runtime-锌褉芯胁械褉泻邪
谐褉邪褎邪
88

鈻窩ompile + Runtime-锌褉芯胁械褉泻邪
谐褉邪褎邪
鈻感澬敌谎屝费� 褋泻邪蟹邪褌褜, 褔褌芯芯薪懈写芯褋褌懈谐谢懈
锌褉芯褋褌芯褌褘锌芯褋褉邪胁薪械薪懈褞褋 Dagger
88

FINAL
89
Simplicity Scope Tests Perf
Lightsaber
Kodein
Toothpick
Dagger

小袩袗小袠袘袨!
OMG! NOW I NEED A
KODEIN DOZE..
special thanks to @georgeci
Ligthsaber
Kodein
Tootpick
git.io/v7cw8
git.io/v7cwY
git.io/v7cwg

狠狠撸

袝褋褌褜谢懈卸懈蟹薪褜斜械蟹 Dagger'a, 袦懈褏邪懈谢袣褉械褋褌褜褟薪懈薪芯胁 Avito

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袝褋褌褜谢懈卸懈蟹薪褜斜械蟹 Dagger'a, 袦懈褏邪懈谢袣褉械褋褌褜褟薪懈薪芯胁 Avito

狠狠撸

袝褋褌褜 谢懈 卸懈蟹薪褜 斜械蟹 Dagger'a, 袦懈褏邪懈谢 袣褉械褋褌褜褟薪懈薪芯胁 Avito

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袝褋褌褜 谢懈 卸懈蟹薪褜 斜械蟹 Dagger'a, 袦懈褏邪懈谢 袣褉械褋褌褜褟薪懈薪芯胁 Avito

袝褋褌褜谢懈卸懈蟹薪褜斜械蟹 Dagger'a, 袦懈褏邪懈谢袣褉械褋褌褜褟薪懈薪芯胁 Avito

袝褋褌褜谢懈卸懈蟹薪褜斜械蟹 Dagger'a, 袦懈褏邪懈谢袣褉械褋褌褜褟薪懈薪芯胁 Avito