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Kyash Androidで新しい画面を作る時のコードの書き順
konifar
June 19, 2018
Programming
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2.1k
Kyash Androidで新しい画面を作る時のコードの書き順
Kyash meetup #1
konifar
June 19, 2018
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Transcript
Kyash AndroidͰ ৽͍͠ը໘Λ࡞Δ࣌ͷ ίʔυͷॻ͖ॱ Kyash meetup #1 @konifar
ઃܭࣗମͷ͍͍Ͱ͕͢ ͱ͋ΔઃܭͷதͰ ଞͷਓ͕Ͳ͏ॻ͍͍ͯΔͷ͔ ؾʹͳΓ·ͤΜ͔ʁ
ࠓ͢͜ͱ • Kyash AndroidΞϓϦͰ৽͍͠ը໘Λ։ൃ͢Δ ࣌ʹɺ͕ࣗͲ͏͍͏ॱ൪ͰԿΛߟ͑ͳ͕Β ίʔυΛॻ͍͍ͯΔͷ͔ɻ ※ ݱঢ়͜͏ͬͯΔΑɺͱ͍͏Ͱվળ͋Γ·͢ɻKyashͰৗʹมԽΛ ָ͠Έͳ͕Β։ൃ͍ͯ͠·͢ɻ
ࠓ͞ͳ͍͜ͱ • MVVMͷৄࡉͳઆ໌ • DataBindingͷجຊతͳ༰ • DIɾDaggerͷઆ໌ • Ϣχοτςετͷॻ͖ํ •
JetpackͳͲΛͬͨࠓޙͷల
ϦΞϧΧʔυΛ༗ޮԽ͢Δ࣌ ͷը໘Λྫʹઆ໌͠·͢ɻ ※ Ұ෦ίʔυΛมߋ͍ͯ͠·͢
None
1. ด͡ΔϘλϯ 2. εΫϩʔϧͨ͠ΒӨ͕ͭ ͘Toolbar 3. ΧʔυൃߦࡁΈ͔Ͳ͏͔ APIͰऔಘͯ͠ɺൃߦࡁΈ ͩͬͨΒදࣔΛม͑ΔϨ ΠΞτ
4. λοϓͨ͠ΒભҠ͢ΔϘ λϯͱϦϯΫ
7JFX.PEFM 6TF$BTF 3FQPTJUPSZ 7JFX "1*1SFGFSFODF
7JFX.PEFM 6TF$BTF 3FQPTJUPSZ 7JFX "1*1SFGFSFODF Activity.kt Fragment.kt activity.xml fragment.xml databinding
ViewModel.kt CheckKyashCardExistsUseCase.kt KyashCardRepository.kt KyashApi.kt (Retrofit service)
7JFX.PEFM 6TF$BTF 3FQPTJUPSZ 7JFX "1*1SFGFSFODF Activity.kt Fragment.kt activity.xml fragment.xml databinding
ViewModel.kt CheckKyashCardExistsUseCase.kt KyashCardRepository.kt KyashApi.kt (Retrofit service) σʔλऔ͖ͬͯͯ ϨΠΞτʹදࣔ
σʔλऔಘͱϨΠΞτදࣔ • ͲͪΒΛઌʹ࣮͢Δ͔ɺAPIͱσβΠϯͷ ͲͪΒ͕ઌʹͰ͖͍ͯΔ͔ʹΑΔɻ • API͕ઌʹͰ͖͍ͯΕσʔλऔಘ෦ɺσβ Πϯ͕ઌʹ͋ΕϨΠΞτ͔Β࡞Δɻ • ͲͪΒͰ͖͍ͯͳ͔ͬͨ߹ϨΠΞτ͔ Βࡶʹ࡞͓ͬͯ͘ʢKyashͰ͋·Γͳ͍ʣ
σʔλऔಘ෦ͷ࣮ॱ • Ϋϥεґଘͷͳ͍ͱ͜Ζ͔Β࡞ΔɻAPIͷΫϥ εϝιου͕ͳ͍ͱRepositoryΛ࣮Ͱ͖ ͳ͍ʢTDDͰΔ߹ผͰ͕͢ʣ • API => Repository =>
UseCase ͷॱ൪ɻ
KyashApi.kt • RetrofitͷΠϯλʔϑΣʔεʹϦΫΤετ༻ͷϝιουΛՃɻ • ϨεϙϯεύϥϝʔλͰ৽͍͠Entity͕ඞཁͳΒ͜ͷλΠϛ ϯάͰ࡞͓ͬͯ͘ɻ
KyashCardRepository.kt • nonceΛऔಘͯ͠ɺͦΕΛͬͯผͷAPIΛୟ͘ɻ RxͷflatMapΛͬͯAPIͷྻԽɻ
CheckKyashCardExistsUseCase.kt • UseCaseɺRepositoryͷϝιουͷ݁ՌΛϏδωεϩδοΫʹԊͬͨܗ ʢࠓճͩͱBooleanʣʹՃ͢Δɻ RxͩͱՃ͍͢͠ͷͰฦΓSingleCompletableʹ͍ͯ͠Δɻ
ʊਓਓਓਓਓਓਓਓਓʊ ʼɹ͜͜ͰॳϏϧυɹʻ ʉ^Y^Y^Y^Y^Y^Y^ʉ
ॳΊͯͷϏϧυ • Ϗϧυ͕͍ͷͰɺσʔλऔಘ෦Ψοͱ Ұؾʹॻ͍ͯ͠·͏͜ͱ͕ଟ͍ɻ • ͜ͷྫͩͱUseCaseʹϩδοΫ͕ೖ͍ͬͯΔ ͷͰϢχοτςετ͜ͷλΠϛϯάͰॻ͘ɻ
ϨΠΞτදࣔ෦ͷ࣮ॱ • Ϋϥεґଘͷͳ͍ͱ͜Ζ͔Β࡞Δɻ • ViewModel => xml => Fragment =>
Activity
ViewModelͷଊ͑ํ • ViewͷදࣔཁૉΛϓϩύςΟʹ࣋ͭɻ • View͔ΒͷΞΫγϣϯʢϥΠϑαΠΫϧ λοϓͳͲʣΛϝιουͰ࣮͢Δɻ • ͲΜͳϓϩύςΟͱΞΫγϣϯ͕ඞཁ͔Λ಄ ͷதͰཧ͓ͯ͘͠ɻ
1. ΧʔυൃߦࡁΈ͔Ͳ͏͔νΣοΫ தͷϩʔυதදࣔͷVisibility 2. ൃߦࡁΈͩͬͨ࣌ͷViewͷ Visibility 3. ະൃߦͩͬͨ࣌ͷViewͷVisibility දࣔཁૉͱͳΔϓϩύςΟ
ViewModel.kt - ϓϩύςΟ • ίϯετϥΫλʹɺΧʔυൃߦࡁΈ͔Ͳ͏͔ΛνΣοΫ͢ΔUseCaseͱը໘ ભҠͷͨΊͷNavigatorΫϥεΛDaggerͰInjectɻ • ViewͷදࣔʹඞཁͳVisibilityͷIntͷϓϩύςΟΛॻ͘ɻ͜ͷྫͰVisibilityͩ ͚͕ͩɺදࣔ͢ΔςΩετͷStringͳͲViewModelʹॻ͍͍ͯΔɻ
1. onResumeͰΧʔυൃߦ͍ͯ͠ Δ͔Ͳ͏͔ͷνΣοΫ 2. λοϓͨ͠Βը໘ભҠ ΞΫγϣϯ
ViewModel.kt - onResume() • ϩʔυͨ݁͠ՌʹΑͬͯϓϩύςΟΛมߋ͢Δɻ͜ͷϓϩύςΟΛ͋ͱͰdatabindingͰxmlʹόΠϯυ͢Δͧʔͱ͍͏ؾ࣋ͪͰॻ͘ɻ • ͪͳΈʹ subscribeOnͱobserveOnΛ͜͜Ͱ྆ํΔͷ͋·ΓΑ͘ͳ͍ͱࢥ͍ͬͯΔɻ
ʊਓਓਓਓਓਓਓਓਓਓਓʊ ʼɹ͜͜ͰςετΛॻ͘ɹʻ ʉ^Y^Y^Y^Y^Y^Y^Y^ʉ
σʔλऔಘͱදࣔͷςετ • UseCaseΛϞοΫͯ͠ɺϝιου͕ݺΕͯ ͍Δ͔ΛVerify͢Δɻ • ϝιουͷฦΓͷ݁ՌʢSingleͷsuccess errorʣʹΑͬͯɺϓϩύςΟͷ͕దʹม ߋ͞Ε͍ͯΔ͔Λςετ͢Δɻ
ViewModel.kt - ด͡ΔϘλϯ • DataBindingͷonClickͰόΠϯυ͢ΔͨΊʹɺҾʹViewΛ͢ɻ • NavigatorݱࡏͷActivityͷࢀরΛ͍࣋ͬͯͯɺfinishActivity() ΛݺͿͱ Activity͕ด͡ΔʢNavigatorΛͻͱͭ࡞ΔΓํ͕͍͍͔ʹ͍ͭͯݕ౼ ͷ༨͋ΓͰ͢ʣ
• ͢Ͱʹը໘ભҠઌ͕͋Δ߹ʹnavigatorͷϝιουΛݺͿΑ͏ʹ͢Δɻ • ·ͩͰ͖͍ͯͳ͍߹TODOίϝϯτ͚ͩॻ͍͓ͯ͘ɻ ViewModel.kt - ϘλϯͱϦϯΫ
ʊਓਓਓਓਓਓਓਓਓਓਓʊ ʼɹ͜͜ͰςετΛॻ͘ɹʻ ʉ^Y^Y^Y^Y^Y^Y^Y^ʉ
ը໘ભҠͷςετ • NavigatorΛϞοΫͯ͠ɺదͳϝιουͱҾ ͕ݺΕ͍ͯΔ͔ΛVerify͢Δ͜ͱͰը໘ભ ҠͷςετΛॻ͘ɻ
fragment.xml • dataʹViewModelΛએݴɻ • ͜͜ͰඞཁʹͳΔͷͰɺViewModelͷํΛઌʹॻ͘Α͏ʹ͍ͯ͠Δɻ
fragment.xml - Toolbar • Toolbar styleΛηοτ͢Δ͚ͩͰӨͷ༗ແɺΔϘλϯͷΞΠίϯͳͲΛม ͑ΒΕΔΑ͏ʹ͍ͯ͠Δɻ • navigationOnClickListenerʹViewModelͷΫϦοΫΠϕϯτΛηοτɻ •
shadowAnimationScrollViewId͓खͷBindingAdapterͰɺScrollViewͷid Ληοτ͢ΔͱεΫϩʔϧ͢ΔͱӨ͕ͭ͘ಈ͖Λ͚ͭΒΕΔɻ
ToolbarExt.kt • ҾͰ͞ΕͨϨΠΞτIDΛͱʹScrollViewΛ୳ͯ͠ɺεΫϩʔϧͨ͠ΒToolbar ͷelevationΛม͑ΔΑ͏ʹ͍ͯ͠Δɻ͜ΕʹݶΒͣɺlottieͷΞχϝʔγϣϯͳͲ ViewͷׂͰڞ௨ԽͰ͖ͦ͏ͳͷ݁ߏDataBindingͰΔΑ͏ʹ͍ͯ͠Δɻ
fragment.xml - දࣔΓସ͑
ʊਓਓਓਓਓਓਓਓਓʊ ʼɹ͜͜ͰϏϧυᶄɹʻ ʉ^Y^Y^Y^Y^Y^Y^ʉ
̎ճͷϏϧυ • DataBindingͨ·ʹͲ͕͜ѱ͍ͷ͔શ͘Θ͔ Βͳ͍ΤϥʔΛग़͖ͯͯͭ͠Β͍ɻ • xmlʹόΠϯυͨ͋͠ͱͰҰϏϧυ͕௨ΔΑ ͏ʹ͓ͯ͘͠ͱ҆৺͢Δɻ
Fragment.kt
Activity.kt
ʊਓਓਓਓਓਓਓਓਓਓਓʊ ʼɹ͜͜Ͱ֬ೝͷϏϧυɹʻ ʉY^Y^Y^Y^Y^Y^Y^Yʉ
σόοάϝχϡʔ • ҙͷը໘Λϝχϡʔ͔Β ։͚ΔΑ͏ʹ͍ͯ͠Δɻ • ͱΓ͋͑ͣ࡞ͬͨը໘Λ ͙͢ʹ։͍ͯ֬ೝ͍ͨ࣌͠ʹ ศརɻ
Զͷίʔυͷॻ͖ॱ·ͱΊ
σʔλऔಘɺϨΠΞτදࣔ ͷͲͪΒ͔Βઌʹ࣮͢Δ͔ APIͱσβΠϯͲͪΒ͕ ઌߦ͍ͯ͠Δ͔࣍ୈ
Ϗϧυ͕͍ͷͰ σʔλऔಘ෦Ұؾʹॻ͘
දࣔ෦ViewModelͷ ϓϩύςΟͱΞΫγϣϯ ʹཧͯ͠ॻ͘
DataBindingͰ ͭͳ͛ͯϏϧυͯ͠Έͯ Τϥʔ͕ग़ͳ͍͜ͱΛفΔ
ίʔυͷॻ͖ํ ਓͦΕͧΕ
ઃܭ͞ΕͨΞϓϦͷίʔυΛ ࣮ࡍʹͲ͏ॻ͍͍ͯΔͷ͔ ͱ͍͏հͰͨ͠
͋Γ͕ͱ͏͍͟͝·ͨ͠