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iOSDC_SwiftUI_Text
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Atsuya Sato
September 18, 2021
Technology
4
5.6k
iOSDC_SwiftUI_Text
iOSDC Japan 2021でLT登壇した資料です
Atsuya Sato
September 18, 2021
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Transcript
"UTVZB4BUP 4XJGU6*5FYUΛ͍͜ͳؒ͢ J04%$+BQBO%BZ-5
J04%$+BQBO Ұ෦͚ͩ #PMEͷςΩετ Ͳ͏࣮͢Δʁ
HStack(spacing: 8) { Text("iOSDC").bold() Text("Japan 2021") } ۪ʹ)4UBDLΛͬͯ J04%$+BQBO
HStack(spacing: 8) { Text("Hello, iOSDC!").bold() Text("͍͍͍͍ςΩετ") } )FMMP J04%$ ͍͍͍
͍ςΩετ
Text("iOSDC").bold() + Text(" ") + Text("Japan 2021") ͜͏͍͏෩ʹॻ͚Δ J04%$+BQBO
Text("Hello, iOSDC!").bold() + Text(" ") + Text("͍͍͍͍ςΩετ") )FMMP J04%$͍͍ ͍͍ςΩετ
5FYUΛ ԋࢉࢠͰ݁߹͢Δ Text("iOSDC").bold() + Text(" ") + Text("Japan 2021") w
4XJGU6*ʹQVCMJDTUBUJDGVOD MIT5FYU SIT5FYU 5FYU ͕༻ҙ͞Ε͍ͯΔͷͰɺ͜͏͍͏ॻ͖ํ͕Ͱ͖Δ w J04ʙͰར༻Մೳ
J04%$+BQBO *NBHFͱ5FYUͷηοτ ύλʔϯ
Text(Image(systemName: "heart")) .foregroundColor(.pink) + Text(" ") + Text("iOSDC").bold() + Text("
") + Text("Japan 2021") ͖ͬ͞ͷԠ༻ͯ͜͠͏ॻ͚Δ J04%$+BQBO
Text(Image(systemName: "heart")) .foregroundColor(.pink) + Text(" ") + Text("iOSDC").bold() + Text("
") + Text("Japan 2021") *NBHFΛ5FYUͰϥοϓ͢Δ w 4XJGU6*5FYUʹQVCMJDJOJU @JNBHF*NBHF ͕༻ҙ͞Ε͍ͯΔͷͰɺ͜͏͍͏ॻ͖ํ͕Ͱ͖Δ w J04ʙͰར༻Մೳ
Text(" \(Text(Image(systemName: "heart")) .foregroundColor(.pink))□ \(Text("iOSDC").bold())□ Japan□2021 ") ͞Βʹ͜͏͍͏෩ʹॻ͚Δ ˞දࣔྖҬͷؔͰվߦΛೖΕͯɺۭനΛ˘ʹ͍ͯ͠·͢ J04%$+BQBO
จࣈྻิΛ֦ுͨ͠ॻ͖ํ w ͬ͘͟Γݴ͏ͱɺ4XJGU6*Ͱఆٛ͞Ε͍ͯΔQVCMJDNVUBUJOHGVOD BQQFOE*OUFSQPMBUJPO @UFYU5FYU ʹΑͬͯՄೳʹͳ͍ͬͯΔॻ͖ํ w J04ʙͰར༻Մೳ Text(" \(Text(Image(systemName:
"heart")) .foregroundColor(.pink))□ \(Text("iOSDC").bold())□ Japan□2021 ") w ͪͳΈʹ QVCMJDNVUBUJOHGVODBQQFOE*OUFSQPMBUJPO @JNBHF*NBHF ༻ҙ͞Ε͍ͯΔͷͰ w 5FYU a *NBHF TZTUFN/BNFBQQMFMPHP "QQMF Έ͍ͨͳॻ͖ํͰ͖Δ
จࣈྻิΛ֦ுͨ͠ॻ͖ํͷิ w 4XJGU6*5FYUQVCMJDJOJU @LFZ-PDBMJ[FE4USJOH,FZ UBCMF/BNF4USJOH OJM CVOEMF#VOEMF OJM DPNNFOU4UBUJD4USJOH
OJM ΛΠχγϟϥΠβͱ͍ͯ࣋ͬͯ͠ Δ w 5FYU J04%$ ͷΑ͏ʹॻ͍ͨ࣌ʹJ04%$ͷܕ-PDBMJ[FE4USJOH,FZʹͳΔ w -PDBMJ[FE4USJOH,FZ&YQSFTTJCMF#Z4USJOH*OUFSQPMBUJPOʹ४ڌ͢ΔܕͰ 4USJOH*OUFSQPMBUJPO1SPUPDPMʹ४ڌͨ͠ܕ4USJOH*OUFSQPMBUJPOΛ෦తʹ͍࣋ͬͯΔ w 4XJGU6*ʹఆٛ͞ΕͨBQQFOE*OUFSQPMBUJPOʹΑͬͯΧελϚΠζ͞ΕͨจࣈྻิΛར ༻Ͱ͖Δ Text(" \(Text(Image(systemName: "heart")) .foregroundColor(.pink))□ \(Text("iOSDC").bold())□ Japan□2021 ")
߹ܭ ԁ ܻ۠Γจࣈྻ ͍͍ײ͡ʹʜ
Text("߹ܭ \(amount)ԁ") ܻ۠Γจࣈྻͷදࣔ/VNCFS'PSNBUUFSແ͠Ͱ͍͍ ߹ܭ ԁ
จࣈྻิΛ֦ுܻͨ۠͠Γ w ͬ͘͟Γݴ͏ͱɺ4XJGU6*Ͱఆٛ͞Ε͍ͯΔQVCMJDNVUBUJOHGVOD BQQFOE*OUFSQPMBUJPO5 @WBMVF5 XIFSF5@'PSNBU4QFDJpBCMFʹΑ ͬͯՄೳʹͳ͍ͬͯΔॻ͖ํ w J04ʙͰར༻Մೳ Text("߹ܭ
\(amount)ԁ")) w ͪͳΈʹ QVCMJDNVUBUJOHGVODBQQFOE*OUFSQPMBUJPO5 @WBMVF5 TQFDJpFS4USJOH XIFSF 5@'PSNBU4QFDJpBCMFΛ༻͍ͯϑΥʔϚοτࢦఆ͢Δ͜ͱՄೳ • Text("\(pi, specifier: “%.2f")") ͷΑ͏ʹॻ͘ͱখԼ2ܻͷϑΥʔϚοτʹͳΔ
จࣈྻิΛ֦ுܻͨ۠͠Γͷิ Text("߹ܭ \(amount)ԁ")) w Έઌ΄Ͳઆ໌ͨ͠BQQFOE*OUFSQPMBUJPOʹΑΔจࣈྻิͷ֦ு public protocol _FormatSpecifiable : Swift.Equatable
{ associatedtype _Arg : Swift.CVarArg var _arg: Self._Arg { get } var _specifier: Swift.String { get } } w *OU%PVCMFͳͲͷܕ͕@'PSNBU4QFDJpBCMFʹ४ڌ͓ͯ͠Γɺࢦఆ͞ Εͨ@TQFDJpFSʹΑͬͯɺܕͷϑΥʔϚοτ͕ߦΘΕ͍ͯΔ
'SJ &BSMZ#JSE 4VQQPSUFS BOE3FHVMBS ͪͳΈʹɺJ04͔Β'PSNBU4UZMFར༻Մೳʹ
Text(iOSDC2021.startedAt, format: .dateTime .month(.defaultDigits) .day() .weekday() ) ͪͳΈʹɺJ04͔Β'PSNBU4UZMFར༻Մೳʹ 'SJ
&BSMZ#JSE 4VQQPSUFS BOE3FHVMBS Text(iOSDC2021.ticketKinds, format: .list(type: .and) )
4XJGU6*5FYUͰ'PSNBU4UZMFΛ͏ w 4XJGU6*5FYUʹ༻ҙ͞Ε͍ͯΔQVCMJDJOJU' @JOQVU''PSNBU*OQVU GPSNBU' XIFSF''PSNBU4UZMF ''PSNBU*OQVU&RVBUBCMF ''PSNBU0VUQVU4USJOHΛ ར༻Ͱ͖Δ
w J04ʙͰར༻Մೳ
w 5XJUUFS!O@BUNBSL w ॴଐΫοΫύουגࣜձࣾ w ΫοΫύουΞϓϦ J04"OESPJE ͷ։ൃ ࣗݾհ ࠤ౻ರ
͋ͭ