Dagger2 라이트하게 훑기

2018년 2월 2일 GDG 안드로이드 라이트닝 토크에서 발표한 자료입니다. Dagger2를 배우기 위한 기본 이론부터 Dagger2 개념, 사용방법까지 라이트하게 다루었습니다.

Transcript

1. ੉थ޹ Drama&Company Seungmin Lee Dagger2 ۄ੉౟ೞѱ വӝ GDG উ٘۽੉٘ ۄ੉౟׬ ష௼
2. 1. Daggerܳ ਤೠ ӝࠄѐ֛ ੉೧ೞӝ 2. Dagger ѐ֛ ੉೧ೞӝ 3. Dagger ࢎਊೞӝ 4. ݃ޖܻ ݾର
3. Daggerܳ ਤೠ ӝࠄѐ֛ ੉೧ೞӝ Ƃ
4. DI Framework Daggerח ޖ঺ੌө?
5. Dependency Injection (੄ઓࢿ ઱ੑ) DIח ޖ঺ੌө?
6. ੄ઓࢿ ઱ੑ਷ ޖ঺ੌө? A classо B classܳ ੄ઓೡ ٸ B Object ࢤࢿਸ Aীࢲ ೞ૑ ঋҊ ৻ࠗীࢲ ࢤࢿೞৈ ֈѹ઱ח Ѫ
7. ੄ઓࢿ ઱ੑ਷ ޖ঺ੌө? Aо B,Cী ੄ઓ Aীࢲ B,Cܳ ࢤࢿ
8. ੄ઓࢿ ઱ੑ਷ ޖ঺ੌө? Aо B,Cী ੄ઓ Aীࢲ B,Cܳ ࢤࢿ ৻ࠗীࢲ B,Cܳ ࢤࢿೞৈ ֈӣ ੄ઓࢿ ઱ੑ!
9. DI Frameworkо যڌѱ ੄ઓࢿਸ ઱ੑೡө?
10. DI Frameworkо যڌѱ ੄ઓࢿਸ ઱ੑೡө? ஶప੉ցח Spring ਊয ೞ૑݅ ߑध੉ ׮ܳ ࡺ, ਗܻо э׮ Daggerীࢲח Component৬ Module
11. IoCח ޖ঺ੌө? Inversion of Control (ઁয ৉੹) DIח IoC ҳഅߑߨ ઺ ೞա੉׮
12. DIח ৵ ೙ਃೡө? ё୓ࢤࢿਸ ৻ࠗী ਤ੐ೣਵ۽ॄ Constructor Parameter ١੄ ࠁੌ۞ ೒ۨ੉౟ ௏٘ܳ ઁѢ
13. ੄ઓࢿ ௏٘ܳ ઴੉ݶ ޖ঺੉ જ਷о? ࠁੌ۞ ೒ۨ੉౟ ௏٘ܳ ઁѢೣਵ۽ॄ 1. ӈଳ૑ ঋ׮.
14. ੄ઓࢿ ௏٘ܳ ઴੉ݶ ޖ঺੉ જ਷о? ࠁੌ۞ ೒ۨ੉౟ ௏٘ܳ ઁѢೣਵ۽ॄ 1. ӈଳ૑ ঋ׮. 2. ௏٘ܳ ਬোೞѱ ߸҃ೡ ࣻ ੓׮.
15. Dagger ѐ֛ ੉೧ೞӝ Ƃ
16. Daggerܳ ੉ܖח ઺ਃ ѐ֛ٜ 1.Inject 2.Component 3.Subcomponent 4.Module 5.Scope
17. Inject Componentীѱ ੄ઓࢿ ઱ੑਸ ਃ୒
18. Component Module۽ࠗఠ ࢤࢿػ ੄ઓࢿ ё୓ܳ ઱ੑ
19. Subcomponent ࠗݽ Component੄ Inner Component Subcomponent੄ Module۽ ઱ੑ੉ पಁೞݶ, ࠗݽ Component Moduleਸ Ѩ࢝ೠ׮
20. Module ੄ઓࢿ ё୓ܳ ࢤࢿ
21. Scope ࢤࢿػ ё୓੄ Lifecycle ߧਤ PerActivity PerFragment …
22. Daggerо ੄ઓࢿਸ ઱ੑೞח Flow @Inject Subcomponent Module Scopeী ੓ਵݶ return হਵݶ ࢤࢿ
23. Daggerо ੄ઓࢿਸ ઱ੑೞח Flow @Inject Scopeী ੓ਵݶ return হਵݶ ࢤࢿ Subcomponent Module Scopeী ੓ਵݶ return হਵݶ ࢤࢿ Module Subcomponent Moduleীࢲ ݏח ఋੑਸ ޅ଺ਵݶ ࢚ਤ Component
24. Daggerо ੄ઓࢿਸ ઱ੑೞח Flow @Inject
25. Dagger ࢎਊೞӝ Ƃ
26. @Singleton @Component(modules = {AndroidSupportInjectionModule.class, ActivityBindingModule.class, ApplicationModule.class}) public interface AppComponent extends AndroidInjector<BaseApplication> { @Component.Builder interface Builder { @BindsInstance AppComponent.Builder application(Application application); AppComponent build(); } } Application Component
27. @Module public class ApplicationModule { @Provides Context providesContext(Application application){ return application; } } Context ఋੑ੄ ੄ઓࢿ ё୓ܳ ࢤࢿೠ׮ Application Module
28. public class BaseApplication extends DaggerApplication { @Override protected AndroidInjector<? extends DaggerApplication> applicationInjector() { return DaggerAppComponent.builder().application(this).build(); } } BaseApplication Component.inject() ೧ષ
29. @Module public abstract class ActivityBindingModule { @ActivityScoped @ContributesAndroidInjector(modules = TasksModule.class) abstract TasksActivity tasksActivity(); @ActivityScoped @ContributesAndroidInjector(modules = TaskDetailPresenterModule.class) abstract TaskDetailActivity taskDetailActivity(); } ActivitySubcomponent ࢤࢿ
30. @Module public abstract class TasksModule { @FragmentScoped @ContributesAndroidInjector abstract TasksFragment tasksFragment(); @ActivityScoped @Provides static TasksPresenter taskPresenter(){ return new TasksPresenter(); } } ActivitySubcomponent੄ Module TasksPresenter ఋੑ੄ ੄ઓࢿ ё୓ܳ ࢤࢿೠ׮
31. public class TasksActivity extends DaggerAppCompatActivity { @Inject TasksPresenter mTasksPresenter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.tasks_act); } } TasksActivity Component.inject() ೧ષ ੄ઓࢿ ઱ੑ ਃ୒
32. @Module public abstract class TasksModule { @FragmentScoped @ContributesAndroidInjector abstract TasksFragment tasksFragment(); @ActivityScoped @Provides static TasksPresenter taskPresenter(){ return new TasksPresenter(); } } FragmentSubcomponent ࢤࢿ
33. @ActivityScoped public class TasksFragment extends DaggerFragment { @Inject TasksContract.Presenter mPresenter; @Override public void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); mListAdapter = new TasksAdapter(new ArrayList<Task>(0), mItemListener); } } TasksFragment Component.inject() ೧ષ ੄ઓࢿ ઱ੑ ਃ୒
34. ݃ޖܻ Ƃ
35. Inject ࢤࢿ੗ @Injectо ੄ઓࢿ ਃ୒ ৻ী ё୓ࢤࢿীب ࢎਊػ׮. పझ౟ పझ౟ ё୓, पઁ ё୓ܳ औѱ աׂ ࣻ ੓׮. য়ט ޅ׮ ࠁৈ٘ܽ Dagger Dagger2 ҕध ࢎ੉౟: https://google.github.io/dagger/ Dagger2ܳ ࢎਊೠ Google੄ Architecture Sample: https://github.com/googlesamples/android-architecture/tree/todo-mvp-dagger/
36. Dagger੄ ః ஶࣆ Daggerח Ӓې೐੉׮. Subcomponent, Component, Inject ࢤࢿ੗ ࣽਵ۽ Ѩ࢝ೞৈ ੄ઓࢿਸ ઱ੑೠ׮.
37. ೟ण࠺ਊ੉ ֫૑݅ ੢੼੉ ఁפ׮. Ӓې೐ ਗܻܳ ݺबೠ׮ݶ য۵૑ ঋইਃ. ನӝೞ૑݈Ҋ ୌୌ൤ ੸ਊ೧ࠇद׮.
38. ٘ۄ݃ঙஹಌפীࢲ ҳੋ೧ਃ ӝദ ٣੗੉ց ݃ா౴ HR Android iOS Web Server Data Engineering ੿ࠁࠁউ goo.gl/UDcg97
39. ੉थ޹ Drama&Company Seungmin Lee хࢎ೤פ׮ Q&A