android-multi-module-with-dagger

DroidKaigi2019
Day 01 11:20~
「マルチモジュールプロジェクトでの Dagger2を用いた Dependency Injection」
での発表資料です

サンプルコード
https://github.com/kgmyshin/Multi-Module-Project-With-Dagger

Transcript

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116. X © DMM.com $SBTI͢Δཧ༝ class Application : HasSupportFragmentInjector, … { @Inject lateinit var dispatchingFragmentInjector DispatchingAndroidInjector<Fragment>() … override fun onCreate() { super.onCreate() DaggerCounterComponent.create().inject(this) DaggerGreetingComponent.create().inject(this) … } }
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118. X © DMM.com class Application : HasSupportFragmentInjector { @Inject lateinit var dispatchingFragmentInjector } w (SFFUJOH'SBHNFOUʹJOKFDU͢Δํ๏ ࢓૊Έ class CounterFragment : Fragment() { ɹɹ… AndroidSupportInjection.inject(this) … }
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121. X © DMM.com վΊͯ՝୊ͱ͸ʁ ՝୊ "QQMJDBUJPOʹ'SBHNFOU༻ͷ*OKFDUPSΛҰ͔ͭ࣋ͯ͠ͳ͍ͨΊ ʹɺ*OKFDUPS্͕ॻ͖͞Εͯ͠·͏͜ͱ
122. X © DMM.com վΊͯ՝୊ͱ͸ʁ ՝୊ "QQMJDBUJPOʹ'SBHNFOU༻ͷ*OKFDUPSΛҰ͔ͭ࣋ͯ͠ͳ͍ͨΊ ʹɺ*OKFDUPS্͕ॻ͖͞Εͯ͠·͏͜ͱ
123. X © DMM.com "QQMJDBUJPOͰ࣋ͭͭͷ'SBHNFOU*OKFDUPS͕ɺෳ਺ͷ*OKFDUPS Λ࣋ͭΑ͏ʹ͢Δ ղܾࡦͷҰͭ
124. X © DMM.com ͭͷ*OKFDUPSͷதͰෳ਺ͷ*OKFDUPSΛ࣋ͭΑ͏ʹ͢Δ
125. X © DMM.com ͭͷ*OKFDUPSͷதͰෳ਺ͷ*OKFDUPSΛ࣋ͭΑ͏ʹ͢Δ
126. X © DMM.com ͭͷ*OKFDUPSͷதͰෳ਺ͷ*OKFDUPSΛ࣋ͭΑ͏ʹ͢Δ
127. X © DMM.com ͭͷ*OKFDUPSͷதͰෳ਺ͷ*OKFDUPSΛ࣋ͭΑ͏ʹ͢Δ
128. X © DMM.com class ModuleInjector<T> : AndroidInjector<T> { private val injectors = mutableListOf<HasDispatchingInjector<T>>() fun addInjector(injector: HasDispatchingInjector<T>) { injectors.add(injector) } fun removeInjector(injector: HasDispatchingInjector<T>) { injectors.remove(injector) } … override fun inject(instance: T) { val wasInjected = injectors.any { it.dispatchingAndroidInjector().maybeInject(instance) } if (!wasInjected) { throw IllegalArgumentException("injection failed") } } } .PEVMF*OKFDUPS
129. X © DMM.com class ModuleInjector<T> : AndroidInjector<T> { private val injectors = mutableListOf<HasDispatchingInjector<T>>() fun addInjector(injector: HasDispatchingInjector<T>) { injectors.add(injector) } fun removeInjector(injector: HasDispatchingInjector<T>) { injectors.remove(injector) } … override fun inject(instance: T) { val wasInjected = injectors.any { it.dispatchingAndroidInjector().maybeInject(instance) } if (!wasInjected) { throw IllegalArgumentException("injection failed") } } } .PEVMF*OKFDUPS
130. X © DMM.com class ModuleInjector<T> : AndroidInjector<T> { private val injectors = mutableListOf<HasDispatchingInjector<T>>() fun addInjector(injector: HasDispatchingInjector<T>) { injectors.add(injector) } fun removeInjector(injector: HasDispatchingInjector<T>) { injectors.remove(injector) } … override fun inject(instance: T) { val wasInjected = injectors.any { it.dispatchingAndroidInjector().maybeInject(instance) } if (!wasInjected) { throw IllegalArgumentException("injection failed") } } } .PEVMF*OKFDUPS
131. X © DMM.com class ModuleInjector<T> : AndroidInjector<T> { private val injectors = mutableListOf<HasDispatchingInjector<T>>() fun addInjector(injector: HasDispatchingInjector<T>) { injectors.add(injector) } fun removeInjector(injector: HasDispatchingInjector<T>) { injectors.remove(injector) } … override fun inject(instance: T) { val wasInjected = injectors.any { it.dispatchingAndroidInjector().maybeInject(instance) } if (!wasInjected) { throw IllegalArgumentException("injection failed") } } } .PEVMF*OKFDUPS interface HasDispatchingInjector<T> { fun dispatchingAndroidInjector(): DispatchingAndroidInjector<T> }
132. X © DMM.com class ModuleInjector<T> : AndroidInjector<T> { private val injectors = mutableListOf<HasDispatchingInjector<T>>() fun addInjector(injector: HasDispatchingInjector<T>) { injectors.add(injector) } fun removeInjector(injector: HasDispatchingInjector<T>) { injectors.remove(injector) } … override fun inject(instance: T) { val wasInjected = injectors.any { it.dispatchingAndroidInjector().maybeInject(instance) } if (!wasInjected) { throw IllegalArgumentException("injection failed") } } } .PEVMF*OKFDUPS
133. X © DMM.com class ModuleInjector<T> : AndroidInjector<T> { private val injectors = mutableListOf<HasDispatchingInjector<T>>() fun addInjector(injector: HasDispatchingInjector<T>) { injectors.add(injector) } fun removeInjector(injector: HasDispatchingInjector<T>) { injectors.remove(injector) } … override fun inject(instance: T) { val wasInjected = injectors.any { it.dispatchingAndroidInjector().maybeInject(instance) } if (!wasInjected) { throw IllegalArgumentException("injection failed") } } } .PEVMF*OKFDUPS
134. X © DMM.com EBHHFSBOESPJEͰ%FQFOEFODZ
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135. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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136. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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137. X © DMM.com ᶃ.PEVMFΛ༻ҙ͢Δ @Module internal abstract class CounterModule { @Singleton @Binds abstract fun provideCounter(impl: CounterImpl): Counter } @Module internal abstract class GreetingModule { @Binds abstract fun provideGreeter(impl: GreeterImpl): Greeter }
138. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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139. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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140. X © DMM.com ᶄ'SBHNFOU.PEVMFΛ༻ҙ͢Δ @Module internal abstract class GreetingFragmentModule { @ContributesAndroidInjector abstract fun greetingFragment(): GreetingFragment } @Module internal abstract class CounterFragmentModule { @ContributesAndroidInjector abstract fun counterFragment(): CounterFragment }
141. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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142. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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143. X © DMM.com ᶅ*OKFDUPSΛ༻ҙ͢Δ class CounterInjector : HasDispatchingInjector<Fragment> { @Inject lateinit var supportFragmentInjector: DispatchingAndroidInjector<Fragment> override fun dispatchingAndroidInjector(): DispatchingAndroidInjector<Fragment> = supportFragmentInjector } class GreetingInjector : HasDispatchingInjector<Fragment> { @Inject lateinit var supportFragmentInjector: DispatchingAndroidInjector<Fragment> override fun dispatchingAndroidInjector(): DispatchingAndroidInjector<Fragment> = supportFragmentInjector }
144. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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145. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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146. X © DMM.com ᶆ$PNQPOFOUΛ༻ҙ͢Δ @Singleton @Component( modules = [ AndroidInjectionModule::class, CounterModule::class, CounterFragmentModule::class]) interface CounterComponent : AndroidInjector<CounterInjector> @Singleton @Component( modules = [ AndroidInjectionModule::class, GreetingModule::class, GreetingFragmentModule::class]) interface GreetingComponent : AndroidInjector<GreetingInjector>
147. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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148. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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149. X © DMM.com ᶇ"QQMJDBUJPOPO$SFBUFͰ$PNQPOFOUΛॳظԽ͢Δ class Application : android.app.Application(), HasSupportFragmentInjector { private val fragmentInjector = ModuleInjector<Fragment>() override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentInjector override fun onCreate() { super.onCreate() val counterInjector = CounterInjector() DaggerCounterComponent.create().inject(counterInjector) val greetingInjector = GreetingInjector() DaggerGreetingComponent.create().inject(greetingInjector) fragmentInjector.addInjector(counterInjector) fragmentInjector.addInjector(greetingInjector) } }
150. X © DMM.com class Application : android.app.Application(), HasSupportFragmentInjector { private val fragmentInjector = ModuleInjector<Fragment>() override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentInjector override fun onCreate() { super.onCreate() val counterInjector = CounterInjector() DaggerCounterComponent.create().inject(counterInjector) val greetingInjector = GreetingInjector() DaggerGreetingComponent.create().inject(greetingInjector) fragmentInjector.addInjector(counterInjector) fragmentInjector.addInjector(greetingInjector) } } ᶇ"QQMJDBUJPOPO$SFBUFͰ$PNQPOFOUΛॳظԽ͢Δ
151. X © DMM.com class Application : android.app.Application(), HasSupportFragmentInjector { private val fragmentInjector = ModuleInjector<Fragment>() override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentInjector override fun onCreate() { super.onCreate() val counterInjector = CounterInjector() DaggerCounterComponent.create().inject(counterInjector) val greetingInjector = GreetingInjector() DaggerGreetingComponent.create().inject(greetingInjector) fragmentInjector.addInjector(counterInjector) fragmentInjector.addInjector(greetingInjector) } } ᶇ"QQMJDBUJPOPO$SFBUFͰ$PNQPOFOUΛॳظԽ͢Δ
152. X © DMM.com class Application : android.app.Application(), HasSupportFragmentInjector { private val fragmentInjector = ModuleInjector<Fragment>() override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentInjector override fun onCreate() { super.onCreate() val counterInjector = CounterInjector() DaggerCounterComponent.create().inject(counterInjector) val greetingInjector = GreetingInjector() DaggerGreetingComponent.create().inject(greetingInjector) fragmentInjector.addInjector(counterInjector) fragmentInjector.addInjector(greetingInjector) } } ᶇ"QQMJDBUJPOPO$SFBUFͰ$PNQPOFOUΛॳظԽ͢Δ
153. X © DMM.com class Application : android.app.Application(), HasSupportFragmentInjector { private val fragmentInjector = ModuleInjector<Fragment>() override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentInjector override fun onCreate() { super.onCreate() val counterInjector = CounterInjector() DaggerCounterComponent.create().inject(counterInjector) val greetingInjector = GreetingInjector() DaggerGreetingComponent.create().inject(greetingInjector) fragmentInjector.addInjector(counterInjector) fragmentInjector.addInjector(greetingInjector) } } ᶇ"QQMJDBUJPOPO$SFBUFͰ$PNQPOFOUΛॳظԽ͢Δ
154. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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155. X © DMM.com  .PEVMFΛ༻ҙ͢Δ
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156. X © DMM.com ᶈ֤ॴͰ*OKFDU class CounterFragment : Fragment() { @Inject lateinit var counter: Counter override fun onAttach(context: Context?) { AndroidSupportInjection.inject(this) super.onAttach(context) } … } class GreetingFragment : Fragment() { @Inject lateinit var greeter: Greeter override fun onAttach(context: Context?) { AndroidSupportInjection.inject(this) super.onAttach(context) } … }
157. X © DMM.com ྲྀΕ
158. X © DMM.com ྲྀΕ
159. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … }
160. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … }
161. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … }
162. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … } class CounterFragment : Fragment() { ɹɹ… AndroidSupportInjection.inject(this) … }
163. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … } class CounterFragment : Fragment() { ɹɹ… AndroidSupportInjection.inject(this) … } class MainActivity : AppCompatActivity() { … } HasSupportFragmentInjectorΛ࣮૷ͯ͠Δ͔ʁ
164. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … } class CounterFragment : Fragment() { ɹɹ… AndroidSupportInjection.inject(this) … } class MainActivity : AppCompatActivity() { … } HasSupportFragmentInjectorΛ࣮૷ͯ͠Δ͔ʁ
165. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … } class CounterFragment : Fragment() { ɹɹ… AndroidSupportInjection.inject(this) … } class MainActivity : AppCompatActivity() { … } HasSupportFragmentInjectorΛ࣮૷ͯ͠Δ͔ʁ
166. X © DMM.com ྲྀΕ class Application : …, HasSupportFragmentInjector { private val moduleFragmentInjector … } class CounterFragment : Fragment() { ɹɹ… AndroidSupportInjection.inject(this) … } class MainActivity : AppCompatActivity() { … } HasSupportFragmentInjectorΛ࣮૷ͯ͠Δ͔ʁ
167. X © DMM.com %ZOBNJD
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173. X © DMM.com ᶇ"QQMJDBUJPOPO$SFBUFͰ$PNQPOFOUΛॳظԽ͢Δ class Application : android.app.Application(), HasSupportFragmentInjector { private val fragmentInjector = ModuleInjector<Fragment>() override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentInjector override fun onCreate() { super.onCreate() val counterInjector = CounterInjector() DaggerCounterComponent.create().inject(counterInjector) val greetingInjector = GreetingInjector() DaggerGreetingComponent.create().inject(greetingInjector) fragmentInjector.addInjector(counterInjector) fragmentInjector.addInjector(greetingInjector) } }
174. X © DMM.com ᶇ"QQMJDBUJPOPO$SFBUFͰ$PNQPOFOUΛॳظԽ͢Δ class Application : android.app.Application(), HasSupportFragmentInjector { private val fragmentInjector = ModuleInjector<Fragment>() override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentInjector override fun onCreate() { super.onCreate() val counterInjector = CounterInjector() DaggerCounterComponent.create().inject(counterInjector) val greetingInjector = GreetingInjector() DaggerGreetingComponent.create().inject(greetingInjector) fragmentInjector.addInjector(counterInjector) fragmentInjector.addInjector(greetingInjector) } }
175. X © DMM.com "QQMJDBUJPOPO$SFBUFҎ߱ͷద੾ͳλΠϛϯάͰ
     JOKFDUPSΛੜ੒ͯ͠ɺNPEVMF*OKFDUPSʹ௥Ճ͢Δ ղܾࡦͷҰͭ
176. X © DMM.com "QQMJDBUJPOPO$SFBUFҎ߱ͷద੾ͳλΠϛϯάͰ
     JOKFDUPSΛੜ੒ͯ͠ɺNPEVMF*OKFDUPSʹ௥Ճ͢Δ ղܾࡦͷҰͭ
177. X © DMM.com ͨͱ͑͹ɺ͜Μͳؔ਺Λ࡞Δ object GreetingInjection { fun inject(fragment: Fragment) { val application = fragment.requireActivity().application as Application if (application.moduleFragmentInjector.injectors().all { it !is GreetingInjector }) { val injector = GreetingInjector() val component = DaggerGreetingComponent.builder() .counter(application.counterComponent().counter()) .build() component.inject(injector) application.addFragmentInjector(injector) } AndroidSupportInjection.inject(fragment) } }
178. X © DMM.com ͨͱ͑͹ɺ͜Μͳؔ਺Λ࡞Δ object GreetingInjection { fun inject(fragment: Fragment) { val application = fragment.requireActivity().application as Application if (application.moduleFragmentInjector.injectors().all { it !is GreetingInjector }) { val injector = GreetingInjector() val component = DaggerGreetingComponent.builder() .counter(application.counterComponent().counter()) .build() component.inject(injector) application.addFragmentInjector(injector) } AndroidSupportInjection.inject(fragment) } }
179. X © DMM.com ͨͱ͑͹ɺ͜Μͳؔ਺Λ࡞Δ object GreetingInjection { fun inject(fragment: Fragment) { val application = fragment.requireActivity().application as Application if (application.moduleFragmentInjector.injectors().all { it !is GreetingInjector }) { val injector = GreetingInjector() val component = DaggerGreetingComponent.builder() .counter(application.counterComponent().counter()) .build() component.inject(injector) application.addFragmentInjector(injector) } AndroidSupportInjection.inject(fragment) } }
180. X © DMM.com ͨͱ͑͹ɺ͜Μͳؔ਺Λ࡞Δ object GreetingInjection { fun inject(fragment: Fragment) { val application = fragment.requireActivity().application as Application if (application.moduleFragmentInjector.injectors().all { it !is GreetingInjector }) { val injector = GreetingInjector() val component = DaggerGreetingComponent.builder() .counter(application.counterComponent().counter()) .build() component.inject(injector) application.addFragmentInjector(injector) } AndroidSupportInjection.inject(fragment) } }
181. X © DMM.com ͨͱ͑͹ɺ͜Μͳؔ਺Λ࡞Δ object GreetingInjection { fun inject(fragment: Fragment) { val application = fragment.requireActivity().application as Application if (application.moduleFragmentInjector.injectors().all { it !is GreetingInjector }) { val injector = GreetingInjector() val component = DaggerGreetingComponent.builder() .counter(application.counterComponent().counter()) .build() component.inject(injector) application.addFragmentInjector(injector) } AndroidSupportInjection.inject(fragment) } } "DUJWJUZʹNPEVMF*OKFDUPS͕͋Δ৔߹Λߟྀͯ͠ɺ
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182. X © DMM.com ͨͱ͑͹ɺ͜Μͳؔ਺Λ࡞Δ object GreetingInjection { fun inject(fragment: Fragment) { val application = fragment.requireActivity().application as Application if (application.moduleFragmentInjector.injectors().all { it !is GreetingInjector }) { val injector = GreetingInjector() val component = DaggerGreetingComponent.builder() .counter(application.counterComponent().counter()) .build() component.inject(injector) application.addFragmentInjector(injector) } AndroidSupportInjection.inject(fragment) } } ˞"DUJWJUZͰ*OKFDUPSΛ࣋ͭͱ͖͸͜ͷํ๏ͩͱ͏·͍͔͘ͳ͍ͷͰ
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183. X © DMM.com ͦ͏͢ΔͱɺJOKFDUઌ͸͜ͷมߋ͚ͩͰࠓ·Ͱ௨Γಈ͘Α͏ʹͳΔ class GreetingFragment : Fragment() { @Inject lateinit var greeter: Greeter override fun onAttach(context: Context?) { GreetingInjection.inject(this) super.onAttach(context) } … } class GreetingFragment : Fragment() { @Inject lateinit var greeter: Greeter override fun onAttach(context: Context?) { AndroidSupportInjection.inject(this) super.onAttach(context) } … }
184. X © DMM.com ͦ͏͢ΔͱɺJOKFDUઌ͸͜ͷมߋ͚ͩͰࠓ·Ͱ௨Γಈ͘Α͏ʹͳΔ class GreetingFragment : Fragment() { @Inject lateinit var greeter: Greeter override fun onAttach(context: Context?) { GreetingInjection.inject(this) super.onAttach(context) } … } class GreetingFragment : Fragment() { @Inject lateinit var greeter: Greeter override fun onAttach(context: Context?) { AndroidSupportInjection.inject(this) super.onAttach(context) } … }
185. X © DMM.com ࿩ͨ͜͠ͱৼΓฦΓ
186. X © DMM.com ࿩ͨ͜͠ͱৼΓฦΓ w %FQFOEFODZ
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