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やさしくわかるMVVM
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Kazuhiro Sakamoto
October 13, 2017
Programming
11
2.9k
やさしくわかるMVVM
iOSDC 2017 Reject Conference days1の発表資料です
Kazuhiro Sakamoto
October 13, 2017
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Transcript
͘͞͠Θ͔Δ.77. @kazu0620
ࣗݾհ ɾࡔຊ େ( @kazu0620 ) ɾݩʑιʔγϟϧήʔϜͷ։ൃͳͲ ɾ2015 Sansanೖࣾ ɾEightࣄۀ෦ʹͯiOSΞϓϦͷ։ൃΛ୲
ࠓ͓͢Δ͜ͱ .77.ͷ.77.͕ͦΕͧΕͲ͏͍͏ׂ͔ʹ ίʔυྫʹ3Y4XJGUΛͬͯΔ͕ɺͦͪΒ৮Γ͚ͩ
Γ͍ͨ͜ͱ 6*ͱϩδοΫσʔλ Λ៉ྷʹ͚͍ͨ
ͦΕɺ.7$͡ΌμϝͳΜʁ
ผʹྑ͍
͚Ͳɺਏ͍͜ͱ͋Δ
7JFX$POUSPMMFSBT.FEJBUPS 7JFX$POUSPMMFS.PEFMͷॲཧΛݺͼग़͢ 7JFX$POUSPMMFS݁ՌΛ$BMMCBDL௨Ͱड͚औΔ 7JFX$POUSPMMFS݁ՌΛݩʹ7JFXͷঢ়ଶΛૢ࡞ 7JFX$POUSPMMFSͷதͰ6*ͱϩδοΫ͕ࠞ͟Γ͕ͪ
͏ͪΐͬͱྑ͍ײ͡ʹ 6*ͱϩδοΫσʔλ Λ៉ྷʹ͚͍ͨ
ViewModel Model Presentation Logic Domain Logic (And Data) View ViewController
UI UI .77.
ࡶͳΠϯΫϦϝϯλϧαʔνͰߟ͑Δ
7JFXͷΛͲ͏ͬͯ࡞Δ͔ʁ 7JFXࢹ͔Β7JFX.PEFMΛݟͯߟ͑Α͏
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7JFX$POUSPMMFSͷ࣮
7JFX$POUSPMMFSͷ࣮
7JFX$POUSPMMFSͷ࣮ ೖྗ͞Εͨ5FYUΛ7JFX.PEFMʹ͑Δ
7JFX.PEFM͔ΒΘΔ Λը໘ʹө͢Δ͚ͩ %BUB#JOEJOH
7JFX͕Δ͜ͱ ɾϩδοΫ࣋ͨͣͨͩ6*Λఆٛ͢Δ ɾϢʔβʔ͔Βͷૢ࡞Λ7JFX.PEFMʹ͑Δ ɾ7JFX.PEFM͔Βड͚औͬͨΛ7JFXʹө͢Δ ɾ ը໘ભҠͷॲཧ 7JFX͕Βͳ͍͜ͱ ɾϞσϧσʔλΛ7JFX͕ૢ࡞͢Δ͜ͱͳ͍
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7JFX.PEFMͷ֊ΛͲ͏ͬͯ࡞Δ͔ʁ 7JFX.PEFMࢹ͔Βݟͯߟ͑Α͏
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7JFX.PEFMͷ࣮
7JFX.PEFMͷ࣮ 7JFXʹެ։͢ΔϓϩύςΟΛఆٛ
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.PEFMʹॲཧΛґཔ
.PEFMʹॲཧΛґཔ ݁ՌΛ7JFXͷ߹ʹ߹Θͤͨܗʹมͯ͋͛͠Δ
7JFX.PEFM͕Δ͜ͱ ɾ.PEFMʹυϝΠϯϩδοΫʹؔ͢ΔॲཧΛґཔ ɾ.PEFMͷ࠷৽ͷΛɺදࣔͷ߹ʹ߹Θͤͨܗʹ͢Δ 7JFX.PEFM͕Βͳ͍͜ͱ ɾυϝΠϯϩδοΫɾσʔλͷૢ࡞ͳͲ.PEFMʹ ͤΔ
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.PEFMͷ࣮
.PEFM͕Δ͜ͱ ɾΞϓϦݻ༗ͷσʔλϏδωεϩδοΫΛఆٛ ɾ.PEFMͷׂଞͷ.7YͱಛʹมΘΒͳ͍ͣ .PEFM͕Βͳ͍͜ͱ ɾ7JFX 6* ʹؔ͢Δૢ࡞વߦΘͳ͍
͓͞Β͍
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.77.ͷྑ͞ ɾ.77.Ͱɺ6*ͱϩδοΫͯ͠ݟ௨͠Α͘ॻ͘͜ͱ͕Ͱ͖Δ ɾ6*ͱϩδοΫ͕͞ΕΔͷͰɺςετ͘͢͠ͳΔ ɾσʔλόΠϯσΟϯάΛར༻ͯ͠ɺૄ݁߹ͳ࣮Λ࣮ݱͰ͖Δ