The front line of Android app development at Hatena

Transcript

1. ͸ͯͳʹ͓͚Δ"OESPJE ΞϓϦ։ൃ࠷લઢ JEGVOOFMCJU
2. ࣗݾ঺հ w
   
   
   
   
   
   
   
   JEGVOOFMCJU
   ๺ଜɹྋ
   w ΞϓϦέʔγϣϯΤϯδχΞ
   w ڈ೥͔ΒΞϓϦ։ൃΛ࢝Ίͨ
3. #,6."
   (JSMT
4. %*
5. %*
   %FQFOEFODZ
   JOKFDUJPO w ίϯϙʔωϯτؒͷґଘؔ܎Λ֎෦͔Β஫ೖ public EntryManager(APIClient apiClient) {
 this.mAPIClient = apiClient; … }
6. ͳͥ%* w ґଘΛͳͯ͘͠ςετ͠΍͍ͨ͘͢͠
   w "DUJWJUZ࠶ੜ੒΁ͷରॲ
   w "DUJWJUZͷதͰ*OTUBODFΛ؅ཧ͠Α͏ͱ͢Δͱɺ Ͳ͏ͯ͠΋ϥΠϑϥΠΫϧʹҾͬுΒΕΔ
   w "DUJWJUZ֎෦͔Β*OTUBODFΛ؅ཧ͍ͨ͠
7. ͳͥ%* w
   ࠶ੜ੒ʹඋ͑ͯ1BSDFMBCMFʹ͢Δ
   w 1BSDFMBCMFʹ͠ʹ͍͘Ϋϥε΋͋Δ
   w 4JOHMFUPOʹͯ͠ঢ়ଶΛอ࣋͠ଓ͚Δ
   w ςελϒϧͰͳ͘ͳΔ
8. खಈ%*ͷ໰୊ w ґଘؔ܎ΛखಈͰ؅ཧ͢Δ͜ͱʹͳΔ
   w ґଘΛ"DUJWJUZ͔Β"DUJWJUZ΁ؾΛ͚ͭͯ౉͢ ࣄʹͳΔ
   Intent intent = new Intent(context, BookmarkActivity.class);
 intent.putExtra(Intent.EXTRA_API_CLIENT, mAPIClient);
 startActivity(intent);
9. %*ίϯςφ
10. %*ίϯςφ w ґଘ஫ೖΛࣗಈͰߦͬͯ͘ΕΔ
    w खಈͰ࢓૊ΈΛ༻ҙ͠ͳͯ͘ྑ͍
    w ϥΠϑαΠΫϧ͔Β཭Εͨͱ͜ΖͰΠϯελϯ ε؅ཧ͕Ͱ͖Δ
11. %BHHFS
12. %BHHFS w IUUQTHJUIVCDPNHPPHMFEBHHFS
    w 4RVBSF͕։ൃͯͨ͠%BHHFSͷHPPHMF
    GPSL
    w ਖ਼ࣜ൛
    
    ͍ͭઌ೔ϦϦʔε
    w ։ൃ൛ͷ
    4/"14)05
13. %BHHFSͷϝϦοτ w ίϯύΠϧ࣌ʹίʔυੜ੒͠ґଘղܾ
    w KBWBYJOKFDU
    "OOPUBUJPOΛ࢖༻
    w ։ൃ͕׆ൃ
14. %BHHFS
    ࢖༻ྫ
15. ߏ੒Πϝʔδ .PEVMF &OUSZ.BOBHFS "DUJWJUZ &OUSZ.BOBHFS "QQMJDBUJPO $PNQPOFOU "1*$MJFOU
16. 3FUSPpU w 4RVBSF੡
    3&45
    ΫϥΠΞϯτϥΠϒϥϦ
    w JOUFSGBDFΛఆٛ͢Δͱ࣮૷ͯ͘͠ΕΔ
    public interface GitHubService {
 @GET("/users/{user}/repos")
 List<Repo> listRepos(@Path("user") String user);
 }
17. ௨৴෦෼ public class BkumaFormalServiceProvider implements BkumaServiceProvider {
 …
 @Override
 public BkumaService getService() {
 OkHttpClient client = new OkHttpClient();
 
 RestAdapter restAdapter = new RestAdapter.Builder()
 .setClient(new OkClient(client))
 .setEndpoint(BkumaService.END_POINT)
 .build();
 return restAdapter.create(BkumaService.class);
 } …
18. .PEVMF͔Β*OKFDU @Module
 public class BkumaModule {
 private final BkumaService mBkumaService;
 public BkumaModule(BkumaGirlsApplication application) {
 mBkumaService = new BkumaFormalServiceProvider(application .getApplicationContext()).getService();
 
 @Provides @Singleton
 EntryManager provideEntryManager() {
 return new EntryManager(mBkumaService);
 } … public class MainActivity extends ActionBarActivity { @Inject EntryManager mEntryManager; @Override
 protected void onCreate(Bundle savedInstanceState) {
 … ((BkumaGirlsApplication)getApplication()).component() .inject(this); } …
19. $PNQPOFOUΛ࡞Δ public class BKUMAGirlsApplication extends Application {
 @Singleton
 @Component(modules = BkumaModule.class)
 public interface ApplicationComponent {
 void inject(MainActivity mainActivity);
 }
 
 private ApplicationComponent mComponent;
 
 @Override
 public void onCreate() {
 mComponent = DaggerBKUMAGirlsApplication_ApplicationComponent.builder()
 .bkumaModule(new BkumaModule(this))
 .build();
 }
 
 public ApplicationComponent component() {
 return mComponent;
 }
 }
20. %BHHFS
    ࢖༻ྫ ςετ
21. Πϝʔδਤ 5FTU
    .PEVMF &OUSZ.BOBHFS 5FTU$MBTT &OUSZ.BOBHFS $PNQPOFOU "1*$MJFOU
    .PDL
22. ௨৴෦෼ .PDLͷ࢓૊Έ w 3FUSPpU
    w .PDL3FTU"EBQUFS
    w JOUFSGBDFΛ0WFSSJEF
23. ௨৴෦෼ʢςετʣ @Override
 public BkumaService getService() {
 RestAdapter restAdapter = new RestAdapter
 .Builder()
 .setEndpoint(BkumaService.END_POINT)
 .build();
 
 MockRestAdapter mockRestAdapter = MockRestAdapter.from(restAdapter);
 mockRestAdapter.setDelay(0); …(ଓ͖·͢)
24. ௨৴෦෼ʢςετʣ …
 BkumaService bkumaService = new BkumaService() {
 @Override
 public void getTopEntries(@Query("limit") int limit, Callback<List<EntryResponse>> callback) {
 callback.success( TestUtils.createDummyEntry(mContext, limit),
 createDummyJsonResponse()
 );
 } }); return mockRestAdapter.create( BkumaService.class, bkumaService );
25. .PEVMF
    ςετ @Module
 public class BkumaTestModule {
 private final BkumaService mBkumaService; …
 public BkumaTestModule(InstrumentationTestCase instrumentationTestCase) { mBkumaService = new BkumaMockServiceProvider(mInstrumentationTestCase .getInstrumentation().getContext()).getService();
 }
 
 @Provides
 EntryManager provideEntryManager() {
 return new EntryManager(mBkumaService);
 } …
26. *OKFDUΛ͢Δ ςετ public class BkumaEntryManagerTest extends InstrumentationTestCase {
 …
 @Inject
 EntryManager mEntryManager;
 … public testGetEntries() { assertEquals( "ΤϯτϦऔಘͰ͖͍ͯΔ", false, mEntryManager.getEntries().isEmpty()); }
 }
27. ਐΜͩઃܭ
28. &OUSZ.BOBHFSͷΩϟογϡ ɾલͷը໘ʹ໭͖ͬͯͨ࣌ͳͲͷͨΊ ʹΩϟογϡ͍ͨ͠ &OUSZ.BOBHFS &OUSZ.BOBHFS &OUSZ.BOBHFS
29. &OUSZ.BOBHFSͷΩϟογϡ .PEVMF &OUSZ.BOBHFS1SPWJEFS &OUSZ.BOBHFS &OUSZ.BOBHFS &OUSZ.BOBHFS "DUJWJUZ &OUSZ.BOBHFS1SPWJEFS &OUSZ.BOBHFS
30. &OUSZ.BOBHFSͷΩϟογϡ public class EntryManagerProvider {
 private final int MAX_SIZE = 4;
 private final LruCache<String, EntryManager> mCache = new LruCache<>(MAX_SIZE); … }
31. &OUSZ.BOBHFSͷΩϟογϡ public EntryManager getEntryManager(@NonNull String key) {
 EntryManager entryManager;
 entryManager = mCache.get(key);
 if (entryManager == null) {
 entryManager = new EntryManager(mBkumaService);
 mCache.put(key, entryManager);
 }
 return entryManager;
 }
32. &OUSZ.BOBHFSͷΩϟογϡ @Provides @Singleton
 EntryManagerProvider provideEntryManagerProvider() {
 return new EntryManagerProvider(mBkumaService);
 } w .BOBHFSͷ*OTUBODFΛ؅ཧ͢ΔΫϥεΛ஫ೖ
33. &OUSZ.BOBHFSͷΩϟογϡ mEntryManager = entryManagerProvider.getEntryManager(CACHE_KEY); w 'SBHNFOU͕ݺ͹ΕΔຖʹΩϟογϡΛར༻
34. ·ͱΊ w %*ͰςελϒϧͳίʔυʹͳΔ
    w ςετ༻ͷίʔυ͕ຊ൪ʹೖΔ͜ͱ΋ͳ͍
    w *OTUBODF؅ཧ͕͠΍͘͢ͳΔ
    w "DUJWJUZͷ࠶ੜ੒࣌ͳͲʹޮ͍ͯ͘Δ
35. ͋Γ͕ͱ͏͍͟͝·ͨ͠