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Flutter研修【MIXI 23新卒技術研修】

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April 28, 2023

Flutter研修【MIXI 23新卒技術研修】

23新卒技術研修で実施したFlutter研修の講義資料です。

動画：https://youtu.be/9IqUQ2TXacI

ハンズオン用リポジトリ：https://github.com/mixigroup/2023BeginnerTrainingFlutter

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公開している資料は勉強会や企業の研修などで自由にご利用頂いて大丈夫ですが、以下の形での利用だけご遠慮ください。
・受講者から参加費や授業料などを集める形での利用（会場費や飲食費など勉強会運営に必要な実費を集めるのは問題ありません）
・出典を削除または改変しての利用

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MIXI ENGINEERSPRO

April 28, 2023
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Transcript

  1. 'MVUUFS৽ଔݚम  ,VOP"ZBOB

  2. ߨࢣɾνϡʔλʔ ٱ໺จࡊ !BZBOBLVOP ৽ଔ NJBUUPNFSDVSZ ࣾ৯͸ΩʔϚΧϨʔਪ͠ পా޾େ !ZVLJIJSPOVNBUB ೥த్ೖࣾ 'BOTUB

    ࣾ৯͸େମ͍ͭ΋=d

  3. ࣄલ४උ͸0,ʁ J04ಈ͔͍ͨ͠ਓɹ "OESPJEಈ͔͍ͨ͠ਓɹ w 9DPEFͷΠϯετʔϧ͓Αͼղౚ w Πϯετʔϧ͸"QQ4UPSFͰ͸ͳ͘EFWFMPQFSαΠτ͔Βམͱͯ͘͠Δ͜ͱΛ͓קΊ w IUUQTEFWFMPQFSBQQMFDPNEPXOMPBENPSF w

    ࣄલʹ"QQMF*%͕ඞཁ w ձࣾͷϝʔϧΞυϨεͰΞΧ΢ϯτΛ࡞੒ w "OESPJE4UVEJPͷΠϯετʔϧ͓Αͼղౚ w Ұ୴ىಈ͠ͳ͍ͱ fl VUUFSEPDUPSͨ͠ͱ͖ʹ6OBCMFUPMPDBUF"OESPJE4%,ͷΤϥʔʹͳΔ

  4. ຊ೔ͷ͓඼ॻ͖ ʙ'MVUUFSͱ͸ ʙ fl VUUFSDSFBUFίϚϯυͰΞϓϦΛ࡞ͬͯΈΑ͏ʂ ʙٳܜ ʙDSFBUF͞ΕͨΞϓϦΛݟ͍ͯ͜͏ʂ *OUSPEVDUJPO 4UBUF 5FYU'JFME

    ը໘ભҠʢ/BWJHBUPSʣ ʙϥϯν ʙωοτϫʔΫ௨৴ʢIUUQ௨৴ʣ ʙνʔϜͰνϟϨϯδʂ 
 ɹɹɹɹ$IBU(15ͱͷνϟοτΞϓϦΛ࡞ͬͯΈΑ͏ʂ ʙΫϩʔδϯά

  5. ݚमͷΰʔϧ

  6. ݚमͷΰʔϧ ΞϓϦ։ൃॳΊͯͷਓ 'MVUUFSָ͍ͬͯ͠ʙʂͷؾ࣋ͪΛ࣋ͪؼͬͯʂ 'MVUUFSνϣοτσΩΔਓ ਓʹڭ͑Δ͜ͱͰཧղ౓Λ্͛Α͏ʂ Ԡ༻໰୊·ͰؤுΕʂ

  7. 'MVUUFSͱ͸

  8. 'MVUUFSͱ͸ w ϚϧνϓϥοτϑΥʔϜ։ൃ͕ՄೳͳϑϨʔϜϫʔΫ w ̓ͭͷϓϥοτϑΥʔϜ্Ͱಈ͘ΞϓϦΛ࡞ΕΔʂ w ੈքʹ͸ສਓҎ্ͷ։ൃऀͱສҎ্ͷΞϓϦ͕͋Δ w (JU)VCͷίϯτϦϏϡʔλʔ਺͸74$PEF IPNFBTTJTUBOUʹ͍࣍ͰҐʂ

    w %Ϟσϧͷදࣔ΋Ͱ͖ΔΑ͏ʹʂ 'MVUUFS'PSXBSEIUUQTXXXZPVUVCFDPNXBUDI W[,2:(,"F8 %ϞσϧදࣔΛࢼͯ͠ΈΔIUUQTJUPNFUFBNCMPH fl VUUUFSTDFOFNFNP

  9. 'MVUUFSͱ͸ w (PPHMF͕ຊؾΛग़ͯ͠࡞ͬͯΔ w (PPHMFͷΞϓϦʢ(PPHMF"ET΍(PPHMF"TTJTUBOUͳͲʣͰ΋ར༻͞ΕͯΔ w ϚςϦΞϧσβΠϯͷίϯϙʔωϯτΛ"OESPJEΑΓઌʹ࣮૷ͯͨ͠Γ͢Δ w ίϯϙʔωϯτΛඪ४Ͱ༻ҙͯ͘͠ΕͯΔ͔Βॳ৺ऀͰ΋ྑ͍ײ͡ʹ࡞ΕΔʂ ίϯϙʔωϯτҰཡIUUQTNBUFSJBMJPDPNQPOFOUT

  10. w %BSUͱ͍͏ݴޠͰ࣮૷͢Δ w (PPHMF͕+BWB4DSJQUͷ໰୊఺Λվળͨ͠୅ସݴޠͱͯ͠೥ʹ։ൃ͞Εͨ΋ͷ w %BSUͰ/VMM4BGFUZʹͳͬͨʢผϖʔδͰઆ໌ʣ w ϨϯμϦϯάΤϯδϯ΋4LJBΛ࢖ͬͯࣗલͰ࡞ΒΕ͍ͯΔͷͰ଎͍ʂ w 'MVUUFS'PSXBSEͰ৽ϨϯμϦϯάΤϯδϯͷ*NQFMMFS͕ެ։͞Εͨ

    w એݴత6*Ͱॻ͘͜ͱ͕ՄೳʢผϖʔδͰઆ໌ʣ w 4UPSZCPBSEΛ࢖ͬͨ4XJGUͷίʔυΑΓ3FBDUͷํ͕ࣅͯΔ͔΋ 'MVUUFSͱ͸ 'MVUUFSͷΞʔΩςΫνϟIUUQTEPDT fl VUUFSEFWSFTPVSDFTBSDIJUFDUVSBMPWFSWJFX *NQFMMFSʹ͍ͭͯIUUQTEPDT fl VUUFSEFWQFSGJNQFMMFS EBTI܅ʹ͍ͭͯIUUQTEPDT fl VUUFSEFWEBTI

  11. /VMM4BGFUZͬͯʁ ͲͷܕͰ΋OVMMΛ࢖ͬͯྑ͍ C͸OVMM΍ͳ͍͔ʙʂ ࣮ߦ࣌ʹOVMMͩͬͨ৔߹ ΤϥʔΛు͘ɾΞϓϦ͕མͪΔ int a = 100; int

    b = null; a = 100; print(a + b); OVMMTBGFUZʹ͍ͭͯIUUQTEBSUEFWOVMMTBGFUZ

  12. ࣮ߦ࣌ʹOVMMͷΤϥʔͰ མͪΔ͜ͱ͸ͳ͘ͳΔ /VMM4BGFUZͬͯʁ جຊతʹOVMM࢖ͬͪΌμϝ ࢖͍͍ͨ࣌͸ Λ͚ͭΔ int a = 100;

    int? b = null; a = 100; print(a + b); // Τϥʔ if (b != null) { print(a + b); } print(a + b!); C͕OVMMͷ࣌͸ආ͚ ͯ͘ΕΔͷͰ҆৺ OVMMTBGFUZʹ͍ͭͯIUUQTEBSUEFWOVMMTBGFUZ

  13. label = UILabel() label.text = “Babu~” label.textColor = .black label.textAlignment

    = .center view.addSubview(label) Text( “Babu~", style: TextStyle(color: Colors.black), textAlign: TextAlign.center, ), ໋ྩతʢ4XJGUʣ એݴత6*ͬͯʁ એݴతʢ%BSUʣ ϥϕϧΛ࡞Εʂ ϥϕϧͷςΩετ͸όϒʙͰ͋Εʂ ৭͸ࠇͰ͋ΕʂਅΜதدͤͰ͋Εʂ ͦͷϥϕϧΛ7JFXʹ௥Ճͤ͑ʂ

  14. label = UILabel() label.text = “Babu~” label.textColor = .black label.textAlignment

    = .center view.addSubview(label) Text( “Babu~", style: TextStyle(color: Colors.black), textAlign: TextAlign.center, ), ໋ྩతʢ4XJGUʣ એݴత6*ͬͯʁ એݴతʢ%BSUʣ զ͸όϒʙͱ͍͏ࠇ৭ͷ ਅΜதدͤςΩετͰ͋Δʂ

  15. GMVUUFSDSFBUFίϚϯυͰ ΞϓϦΛ࡞ͬͯΈΑ͏ʂ

  16. ΞϓϦΛ࡞ͬͯΈΑ͏ $ flutter create <<ϓϩδΣΫτͷ໊લ>> $ cd <<ϓϩδΣΫτͷ໊લ>> $ open

    iOS/Runner.xcworkspace // ios ͷਓͷΈ $ flutter run "OESPJEͷਓ͸࣮ػબ୒΋͘͠͸ "OESPJEελδΦ্ཱͪ͛ͯΤϛϡબ୒ ϓϩδΣΫτ໊͸ΞϯμόʔͰܨ͕ͳ͍ͱ ʰzϓϩδΣΫτ໊zJTOPUBWBMJE%BSUQBDLBHFOBNFʱ ͬͯΤϥʔుౖ͍ͯΒΕΔ

  17. J04೿ͷਓ ࣄલ४උͰ࡞ͬͨ ΞΧ΢ϯτʹͳ͍ͬͯΔ͔ʁ

  18. J04೿ͷਓ ࣮ػ઀ଓͯͨ͠ΒJ04%FWJDFͷͱ͜Ζʹ ͜Μͳ෩ʹग़ͯ͘Δ͸ͣ γϛϡϨʔλಈ͔͢ਓ͸ ޷͖ͳ΍ͭΛબΜͰͶʂ ࣍ճ͔Β͸ԼهίϚϯυͰ্ཱ͕ͪΔΑ $ open -a simulator

  19. J04೿ͷਓʢ࣮ػʣ ઃఆҰൠ71/ͱσόΠε؅ཧ ͷڐՄ͕߱ΓͯΔ͔֬ೝʂ

  20. "OESPJE೿ͷਓ "OESPJE4UVEJPΛ্ཱͪ͛ͯ "7%.BOBHFSΛબ୒ ΋͘͠͸࣮ػ઀ଓͯ͠ $ flutter run ޷͖ͳΤϛϡϨʔλΛ ▶︎ Λԡͯ͠ىಈ

  21. 8FCͰ΋ಈ͘ʂ $ISPNFͰ΋ಈ͚͘Ͳ ͔ͤͬ͘ͳΒεϚϗ͔γϛϡϨʔλͰ ಈ͔ͯ͠Έͯ΄͍͠ʂ

  22. ಈ͍͔ͨͳʁʁʁ ϘλϯΛԡ͢ͱ ਅΜதͷ਺ࣈ͕Χ΢ϯτΞοϓ͞Ε͍ͯ͘ΞϓϦ

  23. ෼ؒٳܜ ΋ͬͱٳܜ͔ͨͬͨ͠Βݴͬͯω

  24. DSFBUF͞ΕͨΞϓϦΛ ݟ͍ͯ͜͏ʂ

  25. ΢ΟδΣοτ ϖʔδશମ

  26. ΢ΟδΣοτ ϖʔδશମ "QQ#BS

  27. ΢ΟδΣοτ ϖʔδશମ "QQ#BS ςΩετ

  28. ΢ΟδΣοτ ϖʔδશମ "QQ#BS ςΩετ Ϙλϯ

  29. ΢ΟδΣοτ ϖʔδશମ "QQ#BS ςΩετ Ϙλϯ શ෦΢ΟδΣοτʂ ը໘͸΢ΟδΣοτͰ੒Γཱ͍ͬͯΔʂ

  30. ࣮ࡍͷίʔυΛݟ͍ͯ͜͏ʂ w ϥΠϒίʔσΟϯά͍ͯ͘͠ͷͰҰॹʹΞϓϦΛಈ͔͍ͯ͜͠͏ʂ w ͨ·ʹղઆͰεϥΠυʹ໭͖ͬͯ·͢ w 5SZ͸Ұॹʹɼ$IBMMFOHF͸ਓͰؤுͬͯΈΑ͏ʂ w ϦϙδτϦʹίʔυΛஔ͍ͯ͋ΔͷͰฉ͖ͦͼΕͨΒࢀߟʹͯ͠Ͷʂ w

    IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFS w ίϛοτϝοηʔδ΍ίʔυ಺ίϝϯτ͕આ໌ʹͳ͍ͬͯ·͢ʂ

  31. 74$PEFͷਓʙʂ ֦ுػೳೖΕ͓ͯ͘ͱΊͪΌͪ͘ΌศརͰ͢ ʰ fl VUUFSʱͰݕࡧͯ͠Ұ൪্ʹग़Δ΍ͭ

  32. ֦ுػೳ͸͜͏࢖͏ʂ Կ͔Ͱғ͍͍ͨ ΢ΟδΣοτΛӈΫϦοΫ ϦϑΝΫλΛબ୒ ғ͍͍ͨ΢ΟδΣοτΛબ୒ σσϯʂғΘΕͨʂ

  33. *OUSPEVDUJPO w ϥΠϒίʔσΟϯά͠·͢ʂ w ϓϩδΣΫτʢσΟϨΫτϦʣߏ੒ʹ͍ͭͯ w NBJO ͷྲྀΕ΍DMBTTͷઆ໌ w .Z)PNF1BHFͷϑΝΠϧ෼͚ͯΈΔ

    w ଞͷϑΝΠϧΛࢀর͢Δͱ͖͸JNQPSU͢Δ w 5FYUͷத਎Λม͑ͯΈͨΓ͢Δ w )PU3FMPBE3FTUBSUͱ͸ʁʢผϖʔδͰઆ໌ʣ w .Z)PNF1BHFݟͯ͘ w 4DB ff PMEͱ͔DPMVNOͳͲඪ४΢ΟδΣοτ͕ͨ͘͞ΜʂʢผϖʔδͰઆ໌ʣ w ֦ுػೳ͸͜͏࢖͏ʂʢผϖʔδͰઆ໌ʣ

  34. )PUSFMPBESFTUBSUͱ͸ʁ )PUSFMPBE )PUSFTUBSU ͍͍ͪͪDUSMD͔Βͷ fl VUUFSSVO͠ͳͯ͘େৎ෉ʂʂʂʂ λʔϛφϧͰ3Λԡ͢ ΄΅Ϧηοτ͞ΕΔ λʔϛφϧͰSΛԡ͢ 5FYU΍৭ͳͲ΢ΟδΣοτΛ

    มߋͨ͠Β൓ө͞ΕΔ 4UBUF͸ͦͷ·· ʢ4UBUFʹؔͯ͠͸ޙͰઆ໌ʣ fl VUUFSSVO ωΠςΟϒίʔυ͔Β ࣮ߦ͠௚͢ ˞)PUSFMPBE͕Ͱ͖Δͷ͸σόοάϏϧυ࣌ʢ+*5ίϯύΠϧ࣌ʣͷΈ

  35. ඪ४΢ΟδΣοτ Α͘࢖͏΢ΟδΣοτ͕ ༻ҙ͞ΕͯΔʂ ඪ४΢ΟδΣοτ͕ݟΕΔIUUQTEPDT fl VUUFSEFWEFWFMPQNFOUVJXJEHFUT

  36. 5SZඪ४΢ΟδΣοτΛ࢖ͬͯΈΑ͏ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w ϥΠϒίʔσΟϯά͠·͢ʂ w ࢖༻૝ఆ΢ΟδΣοτ w 5FYU w $FOUFS

    w $PMVNO w 3PX w 4J[FE#PY w $PMPSFE#PY

  37. IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w 3PXͱ$PMVNOΛ࢖ͬͯӈͷਤܗΛඳըͯ͠ΈΑ͏ʂ w େ͖͞΍৭ɼ伱ؒ͸ςΩτʔͰେৎ෉Ͱ͢ w ࣭໰େ׻ܴʂʂʂʂʂ w 伱ؒͷ෇͚ํ΍ฒ΂ํͳͲ ෼ʂ

    $IBMMFOHFਤܗΛඳըͯ͠ΈΑ͏

  38. $PMVNO΍3PX͸਌ͷαΠζ·Ͱ޿͕Δੑ࣭Λ࣋ͭ

  39. $PMVNO΍3PX͸਌ͷαΠζ·Ͱ޿͕Δੑ࣭Λ࣋ͭ $PMVNOͷαΠζ͸ ΦϨϯδͷ࿮

  40. $PMVNO΍3PX͸਌ͷαΠζ·Ͱ޿͕Δੑ࣭Λ࣋ͭ $PMVNOͷαΠζ͸ ΦϨϯδͷ࿮ 3PX΋Ί͍ͬͺ͍ ޿͕Ζ͏ͱ͢Δ

  41. $PMVNO΍3PX͸਌ͷαΠζ·Ͱ޿͕Δੑ࣭Λ࣋ͭ mainAxisSize:MainAxisSize.min, Λࢦఆͯ͋͛͠Δͱ ࣗ਎ͷେ͖͞ʹཹ·Δʂ $PMVNOͷαΠζ͸ ΦϨϯδͷ࿮

  42. 5SZϦετΛදࣔͯ͠ΈΑ͏ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w ϥΠϒίʔσΟϯά͠·͢ʂ w ࢖༻૝ఆ΢ΟδΣοτ w -JTU7JFX w $BSE

    w 1BEEJOH

  43. IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w ·ͣ͸ࢥ͍ͭ͘ํ๏Ͱ΍ͬͯΈͯʂ w ΤϥʔʹͳΔਓ͕͍ͨΒώϯτग़͠·͢ʂ $IBMMFOHFϦετʹλΠτϧΛ͚ͭΑ͏

  44. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w -JTU7JFX΋޿͕Ζ͏ͱͯ͘͠Δੑ࣭Λ࣋ͭͷͰΤϥʔʹͳΓ·͢ 5IFGPMMPXJOH3FOEFS0CKFDUXBTCFJOHQSPDFTTFEXIFOUIFFYDFQUJPOXBT fi SFE 3FOEFS7JFXQPSUD/&&%4-":065/&&%41"*/5/&&%4$0.104*5*/(#*5461%"5& OFFETDPNQPTJUJOH DSFBUPS7JFXQPSUˡ*HOPSF1PJOUFS<(MPCBM,FZBEC>ˡ4FNBOUJDTˡ-JTUFOFSˡ @(FTUVSF4FNBOUJDTˡ

    3BX(FTUVSF%FUFDUPS<-BCFMFE(MPCBM,FZ3BX(FTUVSF%FUFDUPS4UBUFD>ˡ-JTUFOFSˡ @4DSPMMBCMF4DPQF ˡ@4DSPMM4FNBOUJDT<(MPCBM,FZB>ˡ/PUJ fi DBUJPO-JTUFOFS4DSPMM.FUSJDT/PUJ fi DBUJPOˡ 4DSPMMBCMFˡ1SJNBSZ4DSPMM$POUSPMMFSˡl QBSFOU%BUBOPOF DBOVTFTJ[F  DPOTUSBJOUT#PY$POTUSBJOUT X I*O fi OJUZ  ɽɽɽ

  45. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w -JTU7JFX΋޿͕Ζ͏ͱͯ͘͠Δੑ࣭Λ࣋ͭͷͰΤϥʔʹͳΓ·͢ 5IFGPMMPXJOH3FOEFS0CKFDUXBTCFJOHQSPDFTTFEXIFOUIFFYDFQUJPOXBT fi SFE 3FOEFS7JFXQPSUD/&&%4-":065/&&%41"*/5/&&%4$0.104*5*/(#*5461%"5& OFFETDPNQPTJUJOH DSFBUPS7JFXQPSUˡ*HOPSF1PJOUFS<(MPCBM,FZBEC>ˡ4FNBOUJDTˡ-JTUFOFSˡ @(FTUVSF4FNBOUJDTˡ

    3BX(FTUVSF%FUFDUPS<-BCFMFE(MPCBM,FZ3BX(FTUVSF%FUFDUPS4UBUFD>ˡ-JTUFOFSˡ @4DSPMMBCMF4DPQF ˡ@4DSPMM4FNBOUJDT<(MPCBM,FZB>ˡ/PUJ fi DBUJPO-JTUFOFS4DSPMM.FUSJDT/PUJ fi DBUJPOˡ 4DSPMMBCMFˡ1SJNBSZ4DSPMM$POUSPMMFSˡl QBSFOU%BUBOPOF DBOVTFTJ[F  DPOTUSBJOUT#PY$POTUSBJOUT X I*O fi OJUZ  ɽɽɽ *O fi OJUZʂʂ

  46. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w -JTU7JFX΋޿͕Ζ͏ͱͯ͘͠Δੑ࣭Λ࣋ͭͷͰΤϥʔʹͳΓ·͢ $PMVNO

  47. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w -JTU7JFX΋޿͕Ζ͏ͱͯ͘͠Δੑ࣭Λ࣋ͭͷͰΤϥʔʹͳΓ·͢ $PMVNO

  48. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w -JTU7JFX΋޿͕Ζ͏ͱͯ͘͠Δੑ࣭Λ࣋ͭͷͰΤϥʔʹͳΓ·͢ $PMVNO -JTU7JFX

  49. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w -JTU7JFX΋޿͕Ζ͏ͱͯ͘͠Δੑ࣭Λ࣋ͭͷͰΤϥʔʹͳΓ·͢ $PMVNO -JTU7JFX

  50. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w -JTU7JFX΋޿͕Ζ͏ͱͯ͘͠Δੑ࣭Λ࣋ͭͷͰΤϥʔʹͳΓ·͢ $PMVNO Ͳ͜·Ͱ޿͕ΔΜʁʁʁ -JTU7JFX

  51. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w ղܾࡦ ᶃ -JTU7JFXͷߴ͞Λݻఆ͢Δ ᶄ &YQBOEFEͱ͍͏8JEHFUΛ࢖͏ $PMVNO ߴ͞QYͰʂ -JTU7JFX

  52. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w ղܾࡦ ᶃ -JTU7JFXͷߴ͞Λݻఆ͢Δ ᶄ &YQBOEFEͱ͍͏8JEHFUΛ࢖͏ $PMVNO $PMVNOͷ༨Γͷ伱ؒ શ෦ຒΊͨΔʂ

    -JTU7JFX

  53. $PMVNOͷதʹ-JTU7JFXΛೖΕΔͱ͖͸஫ҙʂ w ղܾࡦ ᶃ -JTU7JFXͷߴ͞Λݻఆ͢Δ ᶄ &YQBOEFEͱ͍͏8JEHFUΛ࢖͏ ᶅ Ϧετͷ࠷ॳͷཁૉʹλΠτϧΛ࣋ͨͤͯ͋͛Δʂ -JTU7JFXͷΈʹ͢Δ

    λΠτϧ ཁૉ ཁૉ ཁૉ ཁૉ ɾ ɾ ɾ

  54. 4UBUFͱ4UBUFMFTT8JEHFU4UBUFGVM8JEHFU w Χ΢ϯτΞοϓͯ͠දࣔ͸Ͳ͏΍͍ͬͯΔͷͩΖ͏͔ʁ w ͦ΋ͦ΋4UBUFͬͯͳ͋ʹʁʢผϖʔδͰઆ໌ʣ w 4UBUFGVM8JEHFUͷ঺հ w 4UBUFΛ௥Ճͯ͠ΈΑ͏ w

    ഒ͍ͯ͘͠Ϙλϯ w 4UBUF͸খ࣋ͭ͘͞Α͏ʹ͠Α͏ʂ w 4UBUFMFTT8JEHFUͷ঺հ

  55. 4UBUFͬͯͳ͋ʹʁ w 4UBUFঢ়ଶ w 4UBUF͕มΘΔͱը໘ߋ৽͞ΕΔʢCVJME಺͕࠶࣮ߦ͞ΕΔʣ ͳΜΒ͔ͷΞΫγϣϯ ݁ՌΛඳը ݁ՌΛඳը

  56. 4UBUFͬͯͳ͋ʹʁ w 4UBUFঢ়ଶ w 4UBUF͕มΘΔͱը໘ߋ৽͞ΕΔʢCVJME಺͕࠶࣮ߦ͞ΕΔʣ ͳΜΒ͔ͷΞΫγϣϯ ݁ՌΛඳը ݁ՌΛඳը 6*G 4UBUF

    એݴత6*Λந৅Խ͢Δͱ ঢ়ଶΛҾ਺ͱͯ͠6*Λฦ͢ ෭࡞༻Λ࣋ͨͳ͍ؔ਺Ͱ͋Δ

  57. w 4UBUFΛ࢖͏΢ΟδΣοτΛ4UBUFGVM8JEHFUͱ͍͏ w ٯʹ࢖Θͳ͍΢ΟδΣοτ͸4UBUFMFTT8JEHFUͱ͍͏ 4UBUFͬͯͳ͋ʹʁ 4UBUFGVM8JEHFU ݁ՌΛඳը ݁ՌΛඳը

  58. 5SZഒʹͳΔTUBUFΛ௥Ճ͠Α͏ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w ϥΠϒίʔσΟϯά͠·͢ʂ w 4UBUFΛ৽ͨʹ༻ҙ͠Α͏ w ͦͷ4UBUFΛഒ͍ͯ͘͠ϘλϯΛ௥Ճ͠Α͏

  59. 5SZഒʹͳΔTUBUFΛ௥Ճ͠Α͏ w ৽͍͠4UBUFΛఆٛ w ഒ͢ΔϝιουΛఆٛ w ഒ͢ΔϝιουΛݺͿϘλϯΛ௥Ճ void _twice() {

    setState(() { _counter2 = _counter2 * 2; }); } FloatingActionButton( onPressed: () { _twice(); },

  60. 5SZ5FYU'JMFEΛ࢖ͬͯΈΑ͏ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w ϥΠϒίʔσΟϯά͠·͢ʂ w 5FYU'JMFEΛ࢖ͬͯΈΑ͏ w จࣈଧͭͨͼʹԼʹςΩετදࣔͤ͞Δʹ͸ʁ w 4UBUFʹ͠ͳ͖Ό͍͚ͳ͍Ͷʂ

  61. $IBMMFOHFจࣈදࣔϘλϯΛ࡞Ζ͏ w ͖ͬ͞͸จࣈΛଧͭͨͼදࣔͩͬͨ w ϘλϯΛԡͨ͠Βจࣈ͕දࣔ͞ΕΔΑ͏ʹͯ͠ΈΑ͏ʂ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM ෼ʂ

  62. $IBMMFOHFจࣈදࣔϘλϯΛ࡞Ζ͏ w TFU4UBUFͷλΠϛϯά͕ॏཁ w 5FYU'JMFEͷPO$IBOHFEͰ͸TFU4UBUF͠ͳ͍Α͏ʹ w ࠶ඳը͞Εͯ͠·͏ͨΊ w Ϙλϯԡͨ࣌͠ʹTFU4UBUF͢ΔΑ͏ʹʂ TextField(

    onChanged: ((value) { tmpText = value; }), IconButton( onPressed: () { setState(() { showText = tmpText; }); },

  63. ϥϯν

  64. 5SZը໘ભҠͯ͠ΈΑ͏ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w /BWJHBUPSͷ΍ΓํͰ͢ w ϥΠϒίʔσΟϯά͠·͢ʂ w 'JSTU1BHFͱ4FDPOE1BHFΛ࡞੒ w 4DB

    ff PMEͳ͍ͱ౔୆͕ͳ͍͔ΒมͳදࣔʹͳͬͪΌ͏Αʙ w QVTIͷઆ໌ʢผϖʔδͰઆ໌ʣ w ͋Β͔͡Ί3PVUFొ࿥͓ͯ͘͠ͱศརͩΑʙ w QPQͷઆ໌ʢผϖʔδͰઆ໌ʣ

  65. ը໘ભҠ " .BUFSJBM"QQ͕͍࣋ͬͯΔ/BWJHBUPSΛ࢖ͬͯը໘ભҠ͢Δ " # .BUFSJBM1BHF3PVUF Navigator.push( context, MaterialPageRoute<void>( builder:

    (BuildContext context) => B(), ), ); Navigator.pop(conte

  66. ը໘ભҠ " .BUFSJBM"QQ͕͍࣋ͬͯΔ/BWJHBUPSΛ࢖ͬͯը໘ભҠ͢Δ " # .BUFSJBM1BHF3PVUF Navigator.push( context, MaterialPageRoute<void>( builder:

    (BuildContext context) => B(), ), ); Navigator.pop(conte 8JEHFU ࠓճ͸4FDPOE1BHF Λ .BUFSJBM1BHF3PVUFʹ౉ͯ͠ 3PVUFΛ࡞ΓɼͦΕΛදࣔ

  67. ը໘ભҠ .BUFSJBM"QQ͕͍࣋ͬͯΔ/BWJHBUPSΛ࢖ͬͯը໘ભҠ͢Δ " # FSJBM1BHF3PVUF ute<void>( ildContext context) => B(),

    Navigator.pop(context); "

  68. ը໘ભҠ " .BUFSJBM"QQ͕͍࣋ͬͯΔ/BWJHBUPSΛ࢖ͬͯը໘ભҠ͢Δ " # .BUFSJBM1BHF3PVUF Navigator.push( context, MaterialPageRoute<void>( builder:

    (BuildContext context) => B(), ), ); Navigator.pop(conte

  69. ը໘ભҠ " .BUFSJBM"QQ͕͍࣋ͬͯΔ/BWJHBUPSΛ࢖ͬͯը໘ભҠ͢Δ " # .BUFSJBM1BHF3PVUF Navigator.push( context, MaterialPageRoute<void>( builder:

    (BuildContext context) => B(), ), ); Navigator.pop(conte ͍͍ͪͪ͜Εॻ͘ͷ ΊΜͲ͍͘͞ʂʂʂ

  70. .BUFSJBM"QQʹ͋Β͔͡Ί3PVUFΛొ࿥͓ͯ͜͠͏ʂ return MaterialApp( title: 'Flutter Demo', theme: ThemeData( primarySwatch: Colors.pink,

    ), initialRoute: '/', routes: <String, WidgetBuilder>{ '/': (BuildContext context) => const FirstPage(), '/second': (BuildContext context) => const SecondPage(), }, ); ͜ΕͰݺ΂ΔΑ͏ʹͳΔʂ Navigator.pushNamed(context, "/second");

  71. IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w (JU)VCͷϦϙδτϦҰཡΛऔಘ͢Δ"1*Λୟ͍ͯΈΑ͏ʂ w IUUQTEPDTHJUIVCDPNKBSFTUSFQPTSFQPT BQJ7FSTJPOMJTU SFQPTJUPSJFTGPSBVTFS w ·ͣ͸DVSMίϚϯυͰୟ͍ͯΈΑ͏ w

    'MVUUFSͰIUUQ௨৴͢ΔͨΊʹIUUQύοέʔδΛ͍ΕΑ͏ʂ w IUUQTQVCEFWQBDLBHFTIUUQ 5SZωοτϫʔΫ௨৴ͯ͠ΈΑ͏ $ curl -L https://api.github.com/users/kno3a87/repos ϦϙδτϦҰཡ ͍ͩ͘͞ʙ <\ JE  OPEF@JEIPHF  OBNF)FMMP8PSME  ʜ ωοτϫʔΫ௨৴ ΫϥΠΞϯτ "1*

  72. ඇಉظॲཧʢBTZODBXBJUʣ ઀ଓதʂ ୳͠தʂ ௐ΂தʂ ฦ͠தʂ ଴ͬͯ͋͛Δ ʢBXBJUʣ

  73. IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM w ·ͣ͸KTPO͔ΒEBSUͰѻ͑ΔΦϒδΣΫτʹม׵͠Α͏ w IPHF<bGVHB`><bQJZP`>Έ͍ͨͳऔಘํ๏ͩͱจࣈྻUZQPͪ͠Ό͏͔΋ʜ w Ϟσϧʹม׵ͪ͠Ό͓͏ʂ w ࢖༻ύοέʔδ w

    IUUQTQVCEFWQBDLBHFTKTPO@TFSJBMJ[BCMF w IUUQTQVCEFWQBDLBHFTCVJME@SVOOFS 5SZKTPOΛύʔε͠Α͏ $ flutter pub run build_runner build \ lOBNFzlLVOPz lBHFzlz ^ VTFSOBNF͸LVOP VTFSBHF͸ʂ

  74. ෼ؒٳܜ ͔࣍ΒνʔϜνϟϨϯδʹͳΓ·͢ʂ

  75. νʔϜͰνϟϨϯδʂ $IBU(15ͱͷνϟοτΞϓϦΛ ࡞ͬͯΈΑ͏ʂ

  76. $IBU(15ͱ͸ʁ w 0QFO"*͕೥݄ʹެ։ͨ͠ਓ޻஌ೳνϟοτϘοτ w ΢ΣϒΞϓϦ͚ͩͰͳ͘"1*΋༻ҙ͞ΕͯΔ w IUUQTQMBUGPSNPQFOBJDPNEPDTBQJSFGFSFODFNBLJOHSFRVFTUT w "1*Λ࢖͏্Ͱͷ஫ҙࣄ߲ w

    ػີ৘ใ΍ୈࡾऀͷ஌తࡒ࢈ݖΛ৵֐͢ΔΑ͏ͳΠϯϓοτ͸͠ͳ͍Ͱʂʂʂʂ w ΋ͪΖΜ㒷ᨱதই΋/( w Ξ΢τϓοτ͸ݸਓͰར༻͢ΔൣғʹͱͲΊ͍ͯͩ͘͞

  77. νʔϜͰνϟϨϯδʂ w جຊ࣮૷͸֤ʑ΍͍ͬͯͩ͘͞ʂʂ w νʔϜʹͨ͠ҙਤ͸ฉ͖΍͘͢ɾڭ͑΍͘͢͢ΔͨΊͳͷͰϫΠϫΠ΍͍ͬͯͩ͘͞ʂ w ࠷ॳͷ໰୊͔Βղ͍ͯ͘ͱॱ൪ʹνϟοτΞϓϦ͕ग़དྷ্͕ͬͯ͘૝ఆͰ͢ʂ w ࠷ޙ·ͰḷΓண͚ͳ͍ͷΛ૝ఆͨ͠໰୊ྔͳͷͰযΒͣʂ w

    ٳܜ΋ࣗ༝ʹͱͬͯͶʂόΠϩϯͰด·ΔͷͰؾΛ͚ͭͯʂʂ w ఆظతʹνϡʔλʔ͕ݟͯճΓ·͢ʂ w Կ͔࣭໰ɾ૬ஊ͋ͬͨΒଈ࠲ʹνϡʔλʔݺΜͰ΋Βͬͯେৎ෉Ͱ͢ʂ

  78. 5FBN$IBMMFOHF౤ߘϖʔδͷ࡞੒ w ౤ߘ͢ΔϖʔδΛ࡞Ζ͏ʂ w ดͨ͡Βॻ͍ͨจࣈ͕දࣔ͞ΕΔΑ͏ʹͯ͠ΈΑ͏ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  79. 5FBN$IBMMFOHF$IBU(15ͱ઀ଓ w $IBU(15"1*ͷτʔΫϯ͸%SPQCPYʹ͋Γ·͢ʂ w (JUʹQVTI͠ͳ͍ͰͶʂʂʂ w FOWϑΝΠϧΛ࡞੒ͯ͠HJUJHOPSFʹॻ͍͓ͯ͘ͱ҆৺͔΋ w LP w

    ͖ͬ͞ͷ౤ߘϖʔδͰॻ͍ͨ಺༰Λ"1*ʹ౤͛ͯΈΑ͏ w ݁Ռ΋දࣔͯ͠ΈΑ͏ʂ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM $ flutter run —-dart-define=MY_TOKEN=<͜͜ʹτʔΫϯ>

  80. 5FBN$IBMMFOHFKTPOΛϞσϧʹม׵ w ͖ͬ͞ͷUSZΛࢀߟʹ΍ͬͯΈΑ͏ʂ w ڍಈࣗମ͸͖ͬ͞ͱมΘΒͳͯ͘0, w SFTQPOTF͕ೖΕࢠʹͳͬͯΔͷ͸Ͳ͏ͨ͠Βྑ͍͔ͳʁ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  81. 5FBN$IBMMFOHFϩʔσΟϯάදࣔ͠Α͏ w "1*Λୟ͍͔ͯΒ݁Ռ͕ฦͬͯ͘Δ·ͰͷؒϩʔσΟϯάΛදࣔ w ϩʔσΟϯά΢ΟδΣοτ͸ඪ४Ͱ༻ҙ͞ΕͯΔͷͰ୳ͯ͠ΈͯͶ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  82. 5FBN$IBMMFOHFϩʔΧϧʹอଘ͠Α͏ w ࠓճ͸)JWFͱ͍͏ύοέʔδΛ࢖༻ w IUUQTQVCEFWQBDLBHFTIJWF w ୺຤ͷϑΝΠϧγεςϜʹอଘͯ͘͠LFZWBMVFετΞ w SFBE΋XSJUF΋ΊͬͪΌૣ͍ʂʂʂ w

    Ұ୴QSJOUσόοάͳͲͰอଘ֬ೝͰ͖Ε͹0,Ͱ͢ʂ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  83. 5FBN$IBMMFOHFจ຺Λཧղͤ͞Α͏ w $IBU(15͸จ຺΋ཧղͯ͠ฦ౴ͯ͘͠Ε·͢ʂ w ࢦࣔޠΛ࢖͏ͱจ຺ཧղͯ͠Δ͔֬ೝͰ͖·͢ w ͠ΓͱΓͱ͔Ͱ΋Αͦ͞͏ʂ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  84. 5FBN$IBMMFOHFϦετදࣔ͠Α͏ w อଘͨ͠ϝοηʔδ಺༰ΛϦετදࣔʹͯ͠νϟοτͬΆ͘͠Α͏ʂ w σβΠϯ΋ࣗ෼޷Έʹ༡ΜͰΈͯʂ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  85. 5FBN$IBMMFOHFΤϥʔΛදࣔ w λΠϜΞ΢τΛઃ͚ͯΈΑ͏ w ඵܦͬͯ΋Ϩεϙϯε͕ͳ͚Ε͹ΤϥʔΛฦ͢Α͏ʹͳͲ w Կ͔͠ΒͷΤϥʔΛड͚औͬͨΒμΠΞϩάͷදࣔΛ͠Α͏ʂ w μΠΞϩά͡Όͳͯ͘εφοΫόʔͰ΋0, ౴͑

    IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  86. 5FBN$IBMMFOHFϝοηʔδΛશ࡟আ w ࠓ·Ͱอଘͨ͠ϝοηʔδΛશ࡟আ͢ΔϘλϯΛ͚ͭΑ͏ʂ w σόοά͠΍͘͢ͳΓ·͢ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  87. 5FBN$IBMMFOHF)JWFͰ΋ϞσϧΛ࢖͏ w KTPOͷ࣌Έ͍ͨʹจࣈྻࢦఆ͢ΔՕॴ͕ग़͖ͯͯେมʂ w ϞσϧΛ࢖͑ΔΑ͏ʹ͠Α͏ʂ w ࢖༻ύοέʔδ w IUUQTQVCEFWQBDLBHFTIJWF@HFOFSBUPS w

    IUUQTEPDTIJWFECEFWDVTUPNPCKFDUTUZQF@BEBQUFST ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  88. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ w #MPDύλʔϯͱ͸ঢ়ଶ؅ཧʹؔ͢ΔΞʔΩςΫνϟύλʔϯͷҰͭ w ೥ͷ(PPHMF*0Ͱ঺հ͞Εͨ w ϏδωεϩδοΫͱ6*Λ෼཭ͯ͠։ൃ͠΍͘͢͠Α͏ʂ w IUUQTCMPDMJCSBSZEFW w

    'MVUUFSެࣜαϯϓϧ࣮૷΋͋Δʂ w IUUQTHJUIVCDPN fl VUUFSOFXT@UPPMLJUUSFF DEDFEDGFCCFBBB w 'MVUUFSͷϕετϓϥΫςΟεΛ౿ऻ w ࢖༻ύοέʔδ w IUUQTQVCEFWQBDLBHFT fl VUUFS@CMPD

  89. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ TUBUF #MPDΫϥε͸ ৗʹTUBUFΛ࣋ͬͯΔ

  90. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ TUBUF #MPDΫϥε͸ ৗʹTUBUFΛ࣋ͬͯΔ ࣋ͬͯΔ࠷৽ͷTUBUFΛݟͯ 6*Λߏங͢Δ

  91. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ ઒ ʢTUSFBNʣ TUBUF

  92. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ ઒ ʢTUSFBNʣ TUBUF TUBUFΛྲྀ͢ ʢFWFOUʣ

  93. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ ઒ ʢTUSFBNʣ TUBUF TUBUFΛྲྀ͢ ʢFWFOUʣ

  94. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ ઒ ʢTUSFBNʣ TUBUF TUBUFΛྲྀ͢ ʢFWFOUʣ ྲྀΕͯ͘ΔͷΛ ଴ͪߏ͑ͯΔ ʢMJTUFOʣ

  95. 5FBN$IBMMFOHF#MPDύλʔϯʹॻ͖௚ͯ͠ΈΑ͏ ౴͑ IUUQTHJUIVCDPNNJYJHSPVQ#FHJOOFS5SBJOJOH'MVUUFSQVMM

  96. Ϋϩʔδϯά

  97. Ϋϩʔδϯά 'MVUUFSָ͠Ί͔ͨͳʁ

  98. ҎԼิ଍ࢿྉ

  99. ม਺ ʲ࠶୅ೖͰ͖Δʳ WBS ʲ࠶୅ೖͰ͖ͳ͍ʳ fi OBMʢ࣮ߦ࣌ఆ਺ʣ DPOTUʢίϯύΠϧ࣌ఆ਺ʣ ίϯύΠϧ࣌ʹఆ਺ʹ͢Δํ͕ύϑΥʔϚϯε͕ྑ͍ͷͰDPOTUΛ࢖͓͏ʂ

  100. ΢ΟδΣοτͷ੾Γग़͠ํ class SampleState extends State<Sample> { final text1 = '΄͛ΓΜ';

    final text2 = '͏ͳΓΜ'; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(widget.title), ), body: Center( child: Column( children: [ Text(text1), Text(text2), ], ), ), ); } } ଞͷ΢ΟδΣοτͰ΋ ࢖͍·Θ͍ͨ͠ͷͰ ੾Γग़͍ͨ͠ʂ

  101. ΢ΟδΣοτͷ੾Γग़͠ํIFMQFSNFUIPE class SampleState extends State<Sample> { final text1 = '΄͛ΓΜ';

    final text2 = '͏ͳΓΜ'; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(widget.title), ), body: Center( child: Column( children: [ Text(text1), Text(text2), ], ), ), ); } } class SampleState extends State<Sample> { final text1 = '΄͛ΓΜ'; final text2 = '͏ͳΓΜ'; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(widget.title), ), body: showText(), ); } Widget showText() { return Center( child: Column( children: [ Text(text1), Text(text2), ], ), ); } } ؆୯ʹ੾Γग़ͤΔ

  102. ΢ΟδΣοτͷ੾Γग़͠ํΫϥε8JEHFU class SampleState extends State<Sample> { final text1 = '΄͛ΓΜ';

    final text2 = '͏ͳΓΜ'; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(widget.title), ), body: Center( child: Column( children: [ Text(text1), Text(text2), ], ), ), ); } } class SampleState extends State<Sample> { final text1 = '΄͛ΓΜ'; final text2 = '͏ͳΓΜ'; @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text(widget.title), ), body: SampleText( text1: text1, text2: text2, ), ); } } class SampleText extends StatelessWidget { final String text1; final String text2; const SampleText({ super.key, required this.text1, required this.text2, }); @override Widget build(BuildContext context) { return Center( child: Column( children: [ Text(text1), Text(text2), ], ), ); } } Ϋϥεͱͯ͠੾Γग़͢ͱ ͪΐͬͱΊΜͲ͍͚͘͞Ͳ ςετ͠΍͍͢ˍ ແବͳ࠶ඳըΛ཈͑ΒΕΔʂ

  103. #VJME$POUFYUͬͯͳΜͩʁ 8JEHFU͸ӈਤͷΑ͏ʹπϦʔঢ়ʹͳ͍ͬͯΔ #VJME$POUFYU͸݂ےͷ͜ͱͰ૆ઌͷ৘ใʹΞΫηε͢Δ͜ͱ͕Ͱ͖Δ ˞௚ܘͷ૆ઌ͔͠ḷΕͳ͍ʂ ˞ͭͷ8JEHFUΠϯελϯεʹରͯ͠ 
 ͭͷ#VJME$POUFYU͕ϖΞͷؔ܎ʹͳ͍ͬͯΔʂ .BUFSJBM"QQ 5IFNF CMVF

    4DB ff PME 5IFNF QJOL 8JEHFU$ 5IFNF PSBOHF 8JEHFU" $PMVNO 3PX 8JEHFU#

  104. #VJME$POUFYUͬͯͳΜͩʁ 8JEHFU͸ӈਤͷΑ͏ʹπϦʔঢ়ʹͳ͍ͬͯΔ #VJME$POUFYU͸݂ےͷ͜ͱͰ૆ઌͷ৘ใʹΞΫηε͢Δ͜ͱ͕Ͱ͖Δ ˞௚ܘͷ૆ઌ͔͠ḷΕͳ͍ʂ ˞ͭͷ8JEHFUΠϯελϯεʹରͯ͠ 
 ͭͷ#VJME$POUFYU͕ϖΞͷؔ܎ʹͳ͍ͬͯΔʂ .BUFSJBM"QQ 5IFNF CMVF

    4DB ff PME 5IFNF QJOL 8JEHFU$ 5IFNF PSBOHF 8JEHFU" $PMVNO 3PX 8JEHFU# 8JEHFU#ͷ݂ےΛḷͬͨΒ ͜͜ͷ5IFNF͕ݟ͔ͭͬͨʂ ͸ࣗ෼ͷ݂ےΛḷͬͯ ૆ઌʹ͋Δ5IFNFΛݟ͚͖͍ͭͯͯΔ Theme.of(context)
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