チーム開発と Android アプリの構成
by
Ryutaro Miyashita
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νʔϜ։ൃͱ"OESPJEΞϓϦͷߏ ୈճελʔτΞοϓ"OESPJEษڧձ ελʔτΞοϓʹ͓͚ΔΞʔΩςΫνϟͱͷ͖߹͍ํ
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ٶԼཽେ $IBU8PSLגࣜձࣾ ΞϓϦέʔγϣϯ։ൃ෦νʔϜϦʔμʔ !SZVHPP@
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ߏ
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"OESPJEΞϓϦͷߏ ΞʔΩςΫνϟ ύοέʔδߏ
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ΞʔΩςΫνϟ .7$ .71 .77. 'MVY 7*1&3 $MFBO"SDIJUFDUVSF FUD
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ϥΠϑαΠΫϧʹண͢ΔΞʔΩςΫνϟ ‣ 3Y+BWB&WFOU#VTΛ͍ͬͯΕҙࣝ͢Δͣ PO4UBSUPO4UPQͰTVCTDSJCFVOTVCTDSJCF ߪಡ͕ഁغ͞Εͨͱ͖ͷࢹରͷదͳഁغ ‣ ϥΠϑαΠΫϧʹண͢Δͱ͞Βʹҙࣝ͢Δ͜ͱ ׂͷ ը໘ͱใ ใͱϩδοΫ ϩδοΫͱӬଓԽػߏ
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"OESPJE"SDIJUFDUVSF$PNQPOFOUT ‣ (PPHMF*0Ͱൃද͞Εͨ ‣ (PPHMFͷߟ͑ΔਪનΞʔΩςΫνϟ ‣ "DUJWJUZ'SBHNFOUͷϥΠϑαΠΫϧʹண ؍ଌՄೳͳϥΠϑαΠΫϧͱඥ͘σʔλ -JGFDZDMF-JWF%BUB ը໘ճసʹӨڹ͞Εͳ͍σʔλͷอ࣋ 7JFX.PEFM σʔλͷӬଓԽΛखॿ͚͢Δ 3PPN1FSTJTUFODF-JCSBSZ
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ΞʔΩςΫνϟࣅͯ͘Δ ‣ "DUJWJUZ'SBHNFOU$VTUPN7JFX 7JFX6*ͷ੍ޚʹूத͢Δ ‣ 7JFX.PEFM 7JFXͷͨΊͷΛอ࣋͢Δ 7JFXͱϏδωεϩδοΫͷڮ͠ ‣ #VTJOFTT-PHJD ΦϒδΣΫτ ϏδωεϩδοΫ
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7JFX 7JFX.PEFM #VTJOFTT-PHJD ‣ 3Y+BWB ‣ JOUFSGBDF ‣ &WFOU#VT
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7JFX 7JFX.PEFM #VTJOFTT-PHJD ‣ 3Y+BWB ‣ JOUFSGBDF ‣ &WFOU#VT
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"OESPJEͷ7JFX͍͜͠ ‣ "DUJWJUZ 'SBHNFOU %JBMPH'SBHNFOU #PUUPN4IFFU $VTUPN7JFX ‣ ը໘ͷίϯϙʔωϯτಉ࢜௨৴͕ඞཁ 7JFX.PEFMΛͲͷΑ͏ʹ͏͔ %BUB#JOEJOHͱͲ͏Έ߹ΘͤΔ͔
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7JFX.PEFMΛͲͷΑ͏ʹ͏͔ ‣ Ϣʔβʔ͕ݟ͍ͯΔlը໘zʹؔ৺Λ͚Δ ʷ )PHF"DUJWJUZ⾮)PHF"DUJWJUZ7JFX.PEFM ̋ )PHF"DUJWJUZ )PHF'SBHNFOU )PHF$VTUPN7JFX )PHF7JFX.PEFM lը໘zͷؔ৺ʹରͯ͠7JFX.PEFM͕͋Δ ۃྗ"OESPJE߹ʹҾͬுΒΕͨ͘ͳ͍
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7JFX.PEFMΛͲͷΑ͏ʹ͏͔ ‣ "OESPJE"SDIJUFDUVSF$PNQPOFOUT 7JFX.PEFM1SPWJEFSTܦ༝Ͱڞ༗Ͱ͖Δ class MyFragment: Fragment() { val viewModel: MyViewModel by lazy { ViewModelProviders.of(activity) .get(MyViewModel::class.java) } }
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%BUB#JOEJOHͱͲ͏Έ߹ΘͤΔ͔ ‣ ֤ϨΠΞτͱ7JFX.PEFMΛόΠϯυ 7JFX.PEFMը໘ͷτοϓίϯϙʔωϯτ͔Βऔಘ
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%BUB#JOEJOHͱͲ͏Έ߹ΘͤΔ͔ ‣ 0CTFSWBCMF'JFMEͳͲͬͯํόΠϯυ data class HogeViewModel( val textValue: ObservableField = ObservableField() )
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7JFXͱ7JFX.PEFM )PHF "DUJWJUZ )PHF 'SBHNFOU )PHF 7JFX l)PHFz %BUB#JOEJOH l)PHF7JFX.PEFMz 0CTFSWBCMF'JFME SY0CTFSWBCMF $PNNBOE &WFOU
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Έ ‣ Ϣʔβʔ͕ݟ͍ͯΔlը໘zʹؔ৺Λ͚Δ Ͳ͜·Ͱ͕ಉ͡ίϯςΩετͷը໘ͳͷ͔ )PHF"DUJWJUZ͕ΞΫςΟϒͰ͋Εɺ ͦ͜ʹදࣔ͞ΕΔͷಉ͡ίϯςΩετʁ ྫ͑l%JBMPH'SBHNFOUzͲ͏ͩΖ͏ʁ )PHF7JFX.PEFMΛ͖͔࣋ͭ൱͔ ઐ༻ͷ7JFX.PEFM͕͋ͬͨํ͕ྑ͍ͷ͔ දࣔ͞ΕΔ%JBMPHͷதͰมΘΓͦ͏͚ͩͲ ʅЏʆʀ řŖƃʜ
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ύοέʔδߏ
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ύοέʔδߏ ‣ "OESPJEΞϓϦͷύοέʔδߏࣗ༝͕ߴ͍ ϓϩδΣΫτσϑΥϧτͰ.BJO"DUJWJUZ͕ ύοέʔδԼʹυʔϯͱஔ͔Ε͍ͯΔ ‣ ྫ͑044ͳ"OESPJEϓϩδΣΫτͰʁ - root - ui - activities - fragments - views - viewmodels - root - ui - Activity.java - Fragment.java - model - utils
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Ͳ͜ʹ͢Δ͔ ‣ ύοέʔδߏΛͲ͏ׂ͢Δ͔ lVJzlNPEFMzʹ͚Δͷྑ͋͘Δ ͔Γ͍͢ ‣ Ͱ lBDUJWJUZzͳͲͰ͚͍ͯ͘ͷ͕ຊʹྑ͍ͷ͔ lը໘zʹண͢Δͱίʔυ͕ࢄͯ͘͠Δ ͞ΒʹlWJFXNPEFMzग़ͯ͘Δͱʜʜʁ ̻̻̻ƅЧƅ űŘŎŎŎ
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ఏҊ ‣ Ϣʔβʔ͕ண͢Δը໘Λߏ͢ΔཁૉͰ·ͱΊΔ - root - ui - hoge - HogeActivity.kt - HogeFragment.kt - HogeCustomView.kt - HogeViewModel.kt - fuga - ……
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ఏҊ ‣ ϝϦοτ ύοέʔδϓϥΠϕʔτʹͰ͖Δ ը໘Λߏ͢ΔཁૉͰ·ͱΊΒΕΔͷͰࢄΒΒͳ͍ (JU)VCͷ3FQPTJUPSZ7JFXFSͰݟΔͱָ͖ʑ ‣ σϝϦοτ ࢥ͍͔ͭͳ͍ʂ
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ʹΌΜͳΜͷͨΊʹ
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ͳͥlΞʔΩςΫνϟzʹ͢Δͷ͔ ‣ ਓͳΒ ଟ ͲΜͳܗͰͳ͍ ਓ ਓʜʜνʔϜʹͳ͖ͬͯͨΒʁ டং͕ඞཁ ΞʔΩςΫνϟடং νʔϜͷͨΊʹΞʔΩςΫνϟ͕͋Δ ‣ டং͕ͳ͍ͱͲ͏ͳΔͷ͔ ։ൃ͕མͪɺόάੜ·ΕɺΧΦεʹͳΔ ϢʔβʔͷՁఏڙ͕ૄ͔ʹͳΔ
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ελʔτΞοϓͱΞʔΩςΫνϟ ‣ Ϗδωεޭ͢Δ͔͔Βͳ͍ ϐϘοτ͢Δ͜ͱ͋Δ ૉૣ͘։ൃͯ͠ɺՁͷݕূΛߦ͍͍ͨ ͰɺϢʔβʔͷͱͯख़͍ͯ͠Δ ͡Ί͔Βҙਤ͢ΔػೳΛਖ਼͘͠ಈ࡞ͤ͞Δඞཁ͕͋Δ ૉૣ͍։ൃWTਖ਼͘͠ಈ࡞͢ΔϓϩάϥϜ ΞʔΩςΫνϟʹΑͬͯடংΛखʹೖΕΑ͏ டংʹΑͬͯϢʔβʔͷՁఏڙΛखॿ͚͢Δ
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டং͋Δ։ൃΛߦ͏ؒΛ୳͍ͯ͠·͢ ‣ $IBU8PSLͰ"OESPJEJ04ΤϯδχΞΛืूத ΞʔΩςΫνϟͱڞʹ͋Δ։ൃΛ͠·ͤΜ͔ʁ ౦ژΦϑΟεେࡕΦϑΟε ౦ژΦϑΟε݄ʹ౦ژλϫʔͦʹҠస͠·͢ ࠓઙ ͔ͬͺڮಓ۩֗ͷத ʹ͋Γ·͢ IUUQDPSQDIBUXPSLDPNKBSFDSVJUFOHJOFFS
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͓͠·͍