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ϞόΠϧΞϓϦઃܭೖ໳ ໺੉ాɹ༟थ

໨࣍ w ιϑτ΢ΣΞΞʔΩςΫνϟʔͱ͸ w ϞόΠϧΞϓϦͰಛʹॏཁͳ඼࣭ಛੑ w ϞόΠϧΞϓϦͰಛ௃తͳ੍໿ w ϞόΠϧΞϓϦͷ։ൃͰҙࣝ͢΂͖͜ͱ w
ϞόΠϧΞϓϦͱόοΫΤϯυͷҧ͍ w ϞόΠϧΞϓϦͷઃܭݪଇ w όοΫΤϯυͱ΋ڞ௨ͷઃܭࢦ਑ w 4XJGUಛ༗ͷ࿩

ιϑτ΢ΣΞΞʔΩςΫνϟʔ w ιϑτ΢ΣΞΛͲͷΑ͏ʹߏ੒͢Δ͔Λࣔ͢΋ͷ w γεςϜΛߏ੒ཁૉʹͲͷΑ͏ʹ෼ׂɾ഑ஔ͠ɺͲͷΑ͏ʹ૬ޓʹ ΍ΓऔΓͤ͞Δͷ͔Λࣔ͢΋ͷ

ιϑτ΢ΣΞΞʔΩςΫνϟʔ w ͏·͘࡞ΓࠐΉ͜ͱͰ w ։ൃɾอकɾӡ༻͕༰қʹͳΔ w γεςϜʹٻΊΒΕΔ඼࣭ಛੑɾͦͷଞͷੑ࣭͕޲্͢Δ

඼࣭ಛੑ ػೳద߹ੑ ੑೳޮ཰ੑ ޓ׵ੑ ࢖༻ੑ ৴པੑ ηΩϡϦςΟ อकੑ Ҡ২ੑ
IUUQTLJLBLVSVJDPNY9IUNM w ιϑτ΢ΣΞ੡඼඼࣭ʢ+*49ࢀরʣ

ϞόΠϧΞϓϦͰಛʹॏཁͳ඼࣭ಛੑ w ࢖༻ੑʢVTBCJMJUZʣ ෭ಛੑɿద੾౓ೝࣝੑɺशಘੑɺӡ༻ૢ࡞ੑɺ ɹɹɹɹϢʔβΤϥʔ๷ࢭੑɺϢʔβΠϯλϑΣʔεշඒੑɺ ɹɹɹɹΞΫηγϏϦςΟ w ੑೳޮ཰ੑʢQFSGPSNBODFF ff i
DJFODZʣ ෭ಛੑɿ࣌ؒޮ཰ੑɺࢿݯޮ཰ੑɺ༰ྔຬ଍ੑ ˞ଞ͕ෆཁͱ͍͏Θ͚Ͱ͸͋Γ·ͤΜ

ϞόΠϧΞϓϦͰಛʹॏཁͳ඼࣭ಛੑ w ࢖༻ੑʢVTBCJMJUZʣ ϢʔβʔʹͱͬͯΑΓ࢖͍উखͷྑ͍ମݧΛ࡞ΓࠐΉඞཁ͕͋Δ ςΩετ #VUUPO े෼ͳλοϓྖҬɺ)JHI$POUSBTUɺద੾ͳಡΈ্͛ɺFUD ଟݴޠରԠɺจࣈαΠζͷมԽʹରԠɺ)JHI$POUSBTUɺFUD 5FYU'JFME
ೖྗཁૉʹԠͨ͡LFZCPBSEɺࣗಈೖྗɺFUD

ϞόΠϧΞϓϦͰಛʹॏཁͳ඼࣭ಛੑ w ੑೳޮ཰ੑʢQFSGPSNBODFF ff i DJFODZʣ ΞϓϦ͕λοϓͨ࣌͠ʹϑϦʔζͨ͠ΓɺεΫϩʔϧ͕ΧΫπΫ ͱମݧͱͯ͠ྑ͘ͳ͍ ʲྑ͍ΞϓϦʳ
ىಈ͕଎͍ εϜʔζͳεΫϩʔϧ Ԡ౴͕଎͍ ΞϓϦαΠζ͕খ͍͞

ϞόΠϧΞϓϦͰಛ௃తͳ੍໿ w σόΠεͷ੍໿ ը໘αΠζ΍04ޓ׵ੑͷ੍໿͕͋Γɺ୺຤ݻ༗ͷࣄ৅΋ଘࡏ 􀟝 􁟜 􁊮 􀟟 􁟧
J1IPOF4& 9 1SP.BY FUD J1BE J1BE1SP J1BE"JS FUD

ϞόΠϧΞϓϦͰಛ௃తͳ੍໿ w 04ͷ੍໿ 04ߋ৽ʹ൐͏࢓༷มԽ΍ਪ঑ͱ͞ΕΔ࣮૷ɾମݧɾ6*͕มԽ 4JSJ͔Βͷݺͼग़͠ͳͲɺ04ͱͷ૬ޓ࡞༻΋ଘࡏ

04ߋ৽ʹ൐͏มԽͷྫ w J1BE04Ͱඪ४ͷλϒόʔҐஔ͕Լ͔Β্෦ϑϩʔςΟϯάʹ

04ߋ৽ʹ൐͏มԽͷྫ w J04Ͱେ͖ͳσβΠϯมߋʢ-JRVJE(MBTTʣ

ϞόΠϧΞϓϦͷ։ൃͰҙࣝ͢΂͖͜ͱ w 6*ͷෳࡶੑ 04όʔδϣϯʹΑͬͯมԽ͢Δ্ɺମݧઃܭ͕ඇৗʹॏཁ Ϩεϙϯγϒ6*ɺը໘ભҠઃܭɺΞχϝʔγϣϯɺFUD w 04ͱͷ૬ޓ࡞༻ 4JSJ͔Βͷݺͼग़͠΍ηϯαʔ৘ใͷऔಘͳͲɺը໘ͷߏஙʹཹ· Βͳ͍ମݧઃܭ͕ඞཁ

ෳࡶͳྖҬ 0OEFWJDFͷཁૉɾঢ়ଶ؅ཧ ϏδωεϩδοΫͷ؅ཧ ෳࡶ͞ͱͷ ઓ͍ํ $PNQPTBCMFͳ6*ઃܭɺ୯ํ޲ σʔλϑϩʔɺ4405ɺFUD %%%ɺ5IF$MFBO "SDIJUFDUVSFɺFUD ϞόΠϧΞϓϦͱόοΫΤϯυͷҧ͍
.PCJMF"QQ #BDLFOE

ϞόΠϧΞϓϦͷઃܭݪଇ w ίϯϙʔωϯτࢦ޲ͱ$PNQPTBCMFͳ6*ઃܭ w ୯ํ޲σʔλϑϩʔ w 4405ʢ4JOHMF4PVSDFPG5SVUIɺ৴པͰ͖Δ།Ұͷ৘ใݯʣ

ϞόΠϧΞϓϦͷઃܭݪଇ w ίϯϙʔωϯτࢦ޲ͱ$PNQPTBCMFͳ6*ઃܭ 6*Λখ͘͞࠶ར༻Մೳͳߏ੒ཁૉ $PNQPTBCMFDPNQPOFOU ʹ ෼ׂ͠ɺͦΕΛ߹੒͢Δ͜ͱʹΑͬͯ6*Λߏங͢Δઃܭ )FMMP 8PSME
#VUUPO #VUUPO )FMMP 8PSME #VUUPO #VUUPO ߹੒ $PNQPTF

ϞόΠϧΞϓϦͷઃܭݪଇ w ୯ํ޲σʔλϑϩʔ ঢ়ଶʹมԽΛҾ͖ى͜͢σʔλͷྲྀΕ͕୯ํ޲ͱͳΔΑ͏ʹ͢Δ ઃܭ 7JFX 4UBUF )PMEFS 7JFX
&WFOU "DDFQUPS %PNBJO -BZFS ΞʔΩςΫνϟʔͷྫ

ϞόΠϧΞϓϦͷઃܭݪଇ w 4405ʢ4JOHMF4PVSDFPG5SVUIɺ৴པͰ͖Δ།Ұͷ৘ใݯʣ มߋՄೳͳΞϓϦ಺ͷঢ়ଶɾσʔλΛৗʹ͔ॴʹ͚ͩଘࡏͤ͞ɺ ͦͷ།Ұͷ৘ใݯ͚ͩΛ৴པɾࢀর͢Δઃܭ 7JFX 4UBUF )PMEFS 7JFX
&WFOU "DDFQUPS %PNBJO -BZFS 4UBUF)PMEFSͷதʹ ৴པͰ͖Δঢ়ଶΛ΋ͭ ΞʔΩςΫνϟʔͷྫ

όοΫΤϯυͱ΋ڞ௨ͷઃܭࢦ਑ w ద੾ͳ໋໊ɺίϝϯτ w ϚδοΫφϯόʔɺάϩʔόϧม਺ɺྫ֎ѲΓͭͿ͠ͳͲͷΞϯν ύλʔϯճආ w ςετ༰қͳઃܭ

4XJGUಛ༗ͷ࿩ w 4XJGU㱠Ϋϥεத৺ͷݴޠ 4XJGU஋ܕத৺ͷݴޠ w 4XJGU㱠ΦϒδΣΫτࢦ޲ʢ0CKFDUPSJFOUFEʣ 4XJGUϓϩτίϧࢦ޲ʢ1SPUPDPMPSJFOUFEʣ

Ϋϥεʢࢀরܕʣத৺ͷݴޠ w Ϋϥεʢࢀরܕʣத৺ͷݴޠͰ͸ɺDMBTTΛ࢖ͬͯঢ়ଶΛ؅ཧ ୅ೖʹΑͬͯՄมͳঢ়ଶ͕؆୯ʹڞ༗Ͱ͖ͯ͠·͏໰୊͕͋Δ class A { var x: Int
= 0 } var a1 = A() var a2 = a1 a1.x = 1 print(a2.x) // ग़ྗɿ1ʢa1ͱa2ͰՄมͳঢ়ଶ͕ڞ༗͞ΕΔɻ๷͙ͨΊʹ๷ޚతίϐʔ౳͕ඞཁʣ

4XJGU஋ܕத৺ͷݴޠ w 4XJGUͰ͸௨ৗTUSVDUʢ஋ܕʣΛ࢖ͬͯঢ়ଶΛ؅ཧ ୅ೖͯ͠΋Մมͳঢ়ଶ͕ڞ༗͞Εͳ͍ struct A { var x: Int
= 0 } var a1 = A() var a2 = a1 a1.x = 1 print(a2.x) // ग़ྗɿ0ʢa1ͱa2ͰՄมͳঢ়ଶ͕ڞ༗͞Εͳ͍ɻ๷ޚతίϐʔͳͲ΋ෆཁʣ

4XJGU஋ܕத৺ͷݴޠ w Ϋϥεத৺ɿDMBTTʹঢ়ଶΛ࣋ͨͤͯΧϓηϧԽɺϝοηʔδύογϯάͰॲཧ 4XJGUʢ஋ܕத৺ʣɿࢀরಁաੑͷ͋Δؔ਺ͱΠϛϡʔλϒϧͳ஋Λ࢖ͬͯॲཧ struct A { var x: Int
= 0 } func createX2(_ a: A) -> Int { a.x * 2 } let a = A() let x2 = createX2(a) print(x2)

1SPUPDPMPSJFOUFE1SPHSBNNJOH w ஋ܕʢTUSVDUʣͰ͸ܧঝΛ࢖͑ͳ͍ͨΊɺ୅ΘΓʹQSPUPDPMΛ࢖༻ protocol Animal { func foo() -> Int
} struct Cat: Animal { var value: UInt8 = 2 func foo() -> Int { Int(value) } } func useAnimal(_ animal: some Animal) { print(animal.foo()) // ۩ମతͳܕΛ࢖Θͣهड़Ͱ͖ΔɻSwiftUI.ViewͷbodyͰ΋ར༻͞Ε͍ͯΔ } useAnimal(Cat())

ࢀߟࢿྉ w "OESPJE ެࣜͷઃܭΨΠυɿIUUQTEFWFMPQFSBOESPJEDPNUPQJD BSDIJUFDUVSF OPXJOBOESPJEɿIUUQTHJUIVCDPNBOESPJEOPXJOBOESPJE w J04 "QQMFެࣜαϯϓϧूɿIUUQTEFWFMPQFSBQQMFDPN EPDVNFOUBUJPOTBNQMFDPEF
༗໊ͳBSDIJUFDUVSFMJCSBSZɿIUUQTHJUIVCDPNQPJOUGSFFDP TXJGUDPNQPTBCMFBSDIJUFDUVSF

J04ͷΞʔΩςΫνϟʔͷྺ࢙ w $PDPB.7$ .PEFM7JFX$POUSPMMFS ఻౷తͳ"QQMFͷ.7$ΞʔΩςΫνϟʔ IUUQTEFWFMPQFSBQQMFDPNMJCSBSZBSDIJWFEPDVNFOUBUJPO(FOFSBM$PODFQUVBM%FW1FEJB$PDPB$PSF.7$IUNM 7JFX .PEFM
7JFX $POUSPMMFS 6TFSૢ࡞ ඳըߋ৽ ௨஌ σʔλߋ৽

J04ͷΞʔΩςΫνϟʔͷྺ࢙ w $PDPB.7$ .PEFM7JFX$POUSPMMFS 7JFX$POUSPMMFSͷංେԽ͕՝୊ʹʢ'BU7JFX$POUSPMMFS໰୊ʣ "OESPJEͰ΋ྨࣅͷ໰୊ͱͯ͠'BU"DUJWJUZ໰୊͕͋ͬͨ 7JFX .PEFM
7JFX $POUSPMMFS 6TFSૢ࡞ ඳըߋ৽ ௨஌ σʔλߋ৽

J04ͷΞʔΩςΫνϟʔͷྺ࢙ w .71 .PEFM7JFX1SFTFOUFS 4VQFSWJTJOH$POUSPMMFSͱ1BTTJWF7JFXͷύλʔϯ͕͋Δ J04Ͱ͸7JFX$POUSPMMFS͸7JFXʹؚΊͯߟ͑ͯɺ1SFTFOUFSʹ6* ϩδοΫΛஔ͘ߏ੒ IUUQTNBSUJOGPXMFSDPNFBB%FW1BTTJWF4DSFFOIUNM

J04ͷΞʔΩςΫνϟʔͷྺ࢙ w .71 .PEFM7JFX1SFTFOUFS 1SFTFOUFS͕7JFX͔Β෼཭͞Εɺ୯ମςετՄೳͳঢ়ଶʹͳΔ 'BU7$໰୊͸ղফ͢Δ͕ɺ࣍͸1SFTFOUFSͷංେԽ͕ൃੜ 7JFX 7$
.PEFM 1SFTFOUFS 6TFSૢ࡞ ඳըߋ৽ IUUQTNBSUJOGPXMFSDPNFBB%FW1BTTJWF4DSFFOIUNM

J04ͷΞʔΩςΫνϟʔͷྺ࢙ w .77. .PEFM7JFX7JFX.PEFM .JDSPTPGUൃ঵Ͱɺએݴత6*͕ྲྀߦΔલ·Ͱྲྀߦ͍ͬͯͨ "OESPJEͰ͸ެࣜͱͯ͠7.͕༻ҙ͞Ε͍ͯΔؔ܎Ͱ"OESPJEͰ͸ ඪ४తʹ࠾༻͞ΕɺͦͷྲྀΕͰJ04ʹ΋࠾༻͞ΕΔ͜ͱ͕ଟ͔ͬͨ ࠷ۙ͸͋·Γݟ͔͚ͳ͍ʢ"OESPJEެࣜͷઃܭΨΠυʹ΋.77. ͱ͸هࡌ͞Ε͍ͯͳ͍ʣ
IUUQTMFBSONJDSPTPGUDPNKBKQBSDIJWFNTEONBHB[JOFGFCSVBSZQBUUFSOTXQGBQQTXJUIUIFNPEFMWJFXWJFXNPEFMEFTJHOQBUUFSO

J04ͷΞʔΩςΫνϟʔͷྺ࢙ w .77. .PEFM7JFX7JFX.PEFM EBUBCJOEJOHʹΑΓ7.ͱ7JFXͷ͕ؒૄ݁߹ʹͳΔͷ͕ಛ௃ ͔͠͠σʔλͷϑϩʔ͕૒ํ޲Ͱ͋Γɺঢ়ଶ͕มԽ͢ΔࡍͷྲྀΕ Λ௥͏ͷ͕೉͍͠ͱ͍͏೉఺͕͋ͬͨ 7JFX
7$ .PEFM 7JFX.PEFM %BUB#JOEJOH

J04ͷΞʔΩςΫνϟʔͷྺ࢙ w 'MVY GBDFCPPLൃͷ+4ͷϥΠϒϥϦͰɺ୯ํ޲σʔλϑϩʔ͕ಛ௃ J04Ͱ΋͜ͷઃܭΛࢀߟʹҰ෦ΞϓϦͰ࠾༻͞Ε͍ͯΔ 7JFX 7$ 6TFS *OUFSBDUJPOT
"DUJPO $SFBUPST "DUJPOT %JTQBUDIFS $IBOHF &WFOUT 4UPSF2VFSJFT $BMMCBDLT 4UPSF "1*

ͦͷଞͷJ04ΞʔΩςΫνϟʔ w 7*1&3 7JFX*OUFSBDUPS1SFTFOUFS&OUJUZ3PVUFS IUUQTXXXPCKDJPJTTVFTBSDIJUFDUVSFWJQFS ͍͔ͭ͘ஶ໊ͳΞϓϦͰ࠾༻͞ΕͯҰ෦ྲྀߦͬͨ w 3FEVY +4ͷϥΠϒϥϦ͕ͩɺJ04Ͱ΋Ұ෦ಉ༷ͷΞʔΩςΫνϟʔͱ͠
ͯ࠾༻͞Εͨ

ͦͷଞͷJ04ΞʔΩςΫνϟʔ w "OESPJEެࣜઃܭΨΠυͷJ04΁ͷྲྀ༻ ར఺ɿυΩϡϝϯτ͕ॆ࣮͓ͯ͠Γֶशϋʔυϧ͕௿͍ ར఺ɿ"OESPJEͱͷઃܭࠩҟʹΑΔ࢓༷ࠩ෼ͷൃੜϦεΫܰݮ w .7 .PEFM7JFX ΞʔΩςΫνϟʔ ར఺ɿ4XJGU6*ͷಛੑΛ׆͔ͨ͠γϯϓϧͳߏ੒
w 'MVY3FEVYΧελϚΠζɺܰྔ'MVY3FEVYʢTUPSFQBUUFSOͳͲʣ ར఺ɿ4405 ୯ํ޲ϑϩʔͷݪଇΛकΓͭͭݸผࣄ৘ʹԠͯ͡࠷దԽ

·ͱΊ w ΞϓϦͰ͸αʔόʔͱ͸ҟͳΔ඼࣭ಛੑ͕ٻΊΒΕΔͨΊɺΞʔΩςΫ νϟʔͷબఆ܏޲΋ҟͳΔ w όοΫΤϯυͱ͸ҧ͏ΞϓϦͷઃܭࢦ਑Λ֮͑Α͏ w ίϯϙʔωϯτࢦ޲ͱ$PNQPTBCMFͳ6*ઃܭ w ୯ํ޲σʔλϑϩʔ
w 4405ʢ4JOHMF4PVSDFPG5SVUIɺ৴པͰ͖Δ།Ұͷ৘ใݯʣ w ಛʹJ04Ͱ͸ਖ਼ղ΍͓खຊͱͳΔΞʔΩςΫνϟʔ͸ͳ͍ͨΊɺΞϓϦͷ࢓ ༷ɾಛੑʹ߹Θͤͯઃܭ͠Α͏

"QQFOEJY

࣮ફฤ΁ͷ଍͕͔Γ w ίϯ΢ΣΠͷ๏ଇٯίϯ΢ΣΠͷ๏ଇ ΞʔΩςΫνϟʔͱ૊৫ߏ଄͸ີ઀ʹؔ܎ ਓ਺΍ϝϯόʔͷಛੑʹΑͬͯ࠷దͳΞʔΩςΫνϟʔ͸มԽ ྫ ՝ۚϞδϡʔϧΛϥΠϒϥϦʹ੾Γग़ͯ͠՝ۚνʔϜΛ࡞Δ

࣮ફฤ΁ͷ଍͕͔Γ w 'FBUVSF fi STU-BZFS fi STUɺϚϧνϞδϡʔϧ୯ҰϞδϡʔϧ ϞόΠϧͰ͸'FBUVSF fi STUͰ੾Δ͜ͱ͕ଟ͍
ػೳ͝ͱʹ4XJGU1BDLBHFʹ੾Γग़ͨ͠ϚϧνϞδϡʔϧԽͳͲ ΋ߦΘΕΔ͜ͱ͕͋Δ 4XJGU6*ʹґଘ͢ΔϞδϡʔϧͱͦΕҎ֎Ͱ෼͚ΔͳͲͷߏ੒΋ ͋Δ

࣮ફฤ΁ͷ଍͕͔Γ w ϦΞΫςΟϒϓϩάϥϛϯάͱඇಉظॲཧ άϩʔόϧͳ4USFBNΛͲ͏ѻ͏͔ͳͲɺ৻ॏͳઃܭ͕ඞཁ ಛʹผͷػೳ͕ಉ͡σʔλΛࢀর͢Δ৔߹ͷ୯ํ޲σʔλϑϩʔ ͱ4405ͷݪଇͷॱकΛઃܭͰ୲อ͢Δඞཁ͕͋Δ w ΞϓϦͷϥΠϑαΠΫϧ όοΫάϥ΢ϯυ࣌ͷॲཧɺ%FFQMJOLىಈ࣌ͷॲཧͳͲ΋ߟྀ͕ ඞཁ

࣮ફฤ΁ͷ଍͕͔Γ w ςελϏϦςΟʢݹయ೿ϩϯυϯֶ೿ʣ "OESPJEެࣜͷΨΠυͰ͸ϩϯυϯֶ೿دΓͷΞʔΩςΫνϟʔ 4XJGUͰ͸஋ܕͱؔ਺Λ࢖ͬͯϞοΫͤͣʹৼΔ෣͍Λςετ͢Δ ݹయ೿ͷ࣮૷΋༰қ

モバイルアプリ設計入門

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More Decks by 野瀬田　裕樹