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SwiftUI,Combine Framework,KeyPath - 堅固な関係からSwif...
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notoroid
January 18, 2020
Programming
1
600
SwiftUI,Combine Framework,KeyPath - 堅固な関係からSwiftUI への閾値を下げる
SwiftUI を理解するのに欠かせないCombine framework とKeyPath についてのプレゼンテーション。
notoroid
January 18, 2020
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Transcript
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։ൃͨ͠ΞϓϦͷۙگ
0CKFDUJWF$͔Β4XJGUͷҠ২ͨ͠ΞϓϦ
ಈ͘ϦϦʔε͢Δ͜ͱΛ༏ઌ
ݱࡏ෦ߏΛཧͭͭ͠ ৽ػೳରԠத
։ൃελΠϧసͷલ৮Ε
4XJGU6*ΞϓϦ։ൃͰ ໘ͨ͜͠ͱ
ଞ4XJGUͷςΫϊϩδʔΛ Βͳ͍ͱ࡞ۀ͕ετοϓ͢Δ
"QQMFఏڙ4XJGUಛԽͷ ༗໊ϑϨʔϜϫʔΫͭ $PNCJOFGSBNFXPSL 4XJGU6*
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4XJGU6*ͰΘΕ͍ͯΔ 4XJGUͷςΫϊϩδʔΛઆ໌ͯ͠ΈΔ
ຖ೦ͱͯ͠Εͳ͍Α͏ʹ এ͑ͯΑ͍͙Β͍Λબͼ·ͨ͠
,FZ1BUI
ΩʔΛͯ͠ʹ ΞΫηεͰ͖Δػೳ
4XJGU͔Βݱࡏͷ,FZ1BUIͷܗʹ 0CKFDUJWF$͔Β͋Δػೳͱผ
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w ྻͷΞΫηε͕Մೳ
͍ํ ɾࣗࣗΛ໌ࣔ͢Δ߹ a<Ϋϥε໊>Ωʔ໊\Ωʔ໊^ ɾࣗݾݴٴ͢Δ߹4FMGΛ༻Ͱ͖Δ a4FMGΩʔ໊ ɾলུܗ͕ڐՄ͞Ε͍ͯΔ aΩʔ໊ ɾྻࢦఆͰ͖Δ a<Ϋϥε໊>ྻΩʔ໊<ΠϯσοΫε>
Ωʔͷ࿈݁ a<Ϋϥε໊>Ωʔ໊BQQFOEJOH a<Ϋϥε໊>Ωʔ໊ BQQFOEJOHΛΘͳͯ͘࿈݁ͯ͠هड़Մೳ
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w BTTJHO w 4XJGU6* w 'PS&BDI -JTU 'PSN w FOWJSPONFOU
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$PNCJOFGSBNFXPSL
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,FZ1BUI w ϑϨʔϜϫʔΫ͕ඞཁ JNQPSU$PNCJOF J04ʙ
Πϝʔδਤ
σʔλ σʔλ σʔλ σʔλͷೖΓޱ
σʔλͷมܗ σʔλC σʔλC σʔλC σʔλC σʔλB σʔλB
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σʔλͷมܗɺσʔλͷྲྀɺσʔλͷྲྀྔͷՃ σʔλͷൃߦऀ σʔλͷߪಡऀ
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σʔλͷൃߦݩछྨ
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0QFSBUPSTΛ͏ NBQͳͲ
ඇಉظॲཧ 1VCMJTIFSͷछྨᶅ w'VUVSF ϦΫΤετޙɺඇಉظͰσʔλ͕खʹೖΔॲཧ ωοτϫʔΫϦΫΤε τͳͲ ͷσʔλΛड͚औΔͷʹར༻͢ΔɻΤϥʔΛऔಘͰ͖ͣΤϥʔ ͕ฦͬͯ͘Δ͜ͱ͋Δ
$PNCJOFGSBNFXPSLͷಛ
ΤϥʔϨʔϯͷ༗ແ͕બΔ
σʔλͷೖΓޱ
σʔλͷೖΓޱ
σʔλͷೖΓޱ
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$PNCJOF$PNNVOJUZ SYTXJGUUPDPNCJOFDIFBUTIFFU HJUIVCDPN$PNCJOF$PNNVOJUZSYTXJGUUPDPNCJOFDIFBUTIFFU 3Y4XJGUͱͷػೳൺֱ
6TJOH$PNCJOF IFDLKHJUIVCJPTXJGUVJOPUFT $PNCJOFGSBNFXPSLͷ͍ํ
ϥΠόϧ 3Y4XJGU ΑΓܰྔͳ ͷͰ͓͢͢Ί