既存のAndroidプロジェクトを Jetpack Composeに移行してみる / Migrate existing Android project to Jetpack Compose

2021/02/19
Mobile Act ONLINE #3
https://mobileact.connpass.com/event/200515/

Transcript

1. 
   .PCJMF
   "DU
   0/-*/&
   
   طଘͷ"OESPJEϓϩδΣΫτΛ
   +FUQBDL
   $PNQPTFʹҠߦͯ͠ΈΔ
2. 1SPGJMF w ͳ΂
   w 5XJUUFS
   
   !/BCF$PUU
   w (JU)VC
   
   /6NFSP"OE%FW
   w גࣜձࣾ͸ͯͳ
   w "OESPJE
   
   J04
   BQQMJDBUJPO
   FOHJOFFS
3. +FUQBDL
   $PNQPTF
   ͱ͸ w "OESPJE
   ʹ͓͚Δએݴత
   6*
   ͷϑϨʔϜϫʔΫ
   w "OESPJE
   
   Ҏ߱Ͱ࢖͑Δ
   w 
   ݱࡏͰ
   BMQIB
   ͕࠷৽
   w 
   ೥ʹ
   4UBCMF
   ʹͳΔ༧ఆ
   w IUUQTXXXZPVUVCFDPNXBUDI W6#XGR#QJ86GFBUVSFZPVUVCFU
   ͜ͷઌɺ+FUQBDL
   $PNQPTF
   Λ
   $PNQPTF
   ͱলུͯ͠දه͠·͢
4. ࠓ೔࿩͢͜ͱ w ࣮ࡍʹ͋ΔϓϩδΣΫτΛ
   +FUQBDL
   $PNQPTF
   ʹ׬શҠߦͯ͠Έ·͢
   w ͲͷΑ͏ͳखॱͰҠߦ͢Δ͜ͱʹͳΔͷ͔
   w ҠߦͰେมͩͬͨՕॴ
   w +FUQBDL
   $PNQPTF
   ʹඋ͑ͯࠓ͔ΒͰ͖Δ͜ͱ
5. +FUQBDL
   $PNQPTF
   ʹҠߦ͢Δखॱ  طଘͷ
   7JFX
   ͱಉ͡σβΠϯͷ
   $PNQPTBCMF
   GVO
   Λ࣮૷͢Δ
   w "OESPJE
   4UVEJP
   Ͱ
   1SFWJFX
   Λ֬ೝͰ͖Δ
    "DUJWJUZ
   PS
   'SBHNFOU
   ͷը໘୯ҐͰ
   $PNQPTF
   ΁ஔ͖׵͑Δ
   w $PNQPTF
   ͸
   "DUJWJUZ
   
   'SBHNFOU
   
   7JFX
   ୯ҐͰͷಋೖ͕Մೳ
    ը໘ભҠΛ
   $PNQPTF
   ͰભҠͤ͞ΔΑ͏ʹ͢Δ
6. ࠓճҠߦ͢ΔϓϩδΣΫτ w 6IPPJ1JD#PPL"OESPJE
   ͱ͍͏ɹ ΢ϗʔΠ͞Μ
   !UIF@VIPPJ
   ͕
   (JU)VC
   ʹ
   044
   ͱͯ͠ެ։͍ͯ͠ ΔϓϩδΣΫτΛ
   $PNQPTF
   ʹҠ ߦͯ͠Έ·͢
   w IUUQTHJUIVCDPNVIPPJ 6IPPJ1JD#PPL"OESPJE
   w ͜ͷΞϓϦ͸Ұཡɺৄࡉͱγϯϓ ϧͳߏ੒ͷΞϓϦͰ͢
7. ΞΠςϜΛ࣮૷
8. ΞΠςϜΛ࣮૷
9. ϦετΛ࣮૷
10. ϦετΛ࣮૷
11. Ұཡͷը໘Λ࣮૷
12. Ұཡͷը໘Λ࣮૷
13. σʔλΛҰཡʹ൓ө w $PNQPTF
    ͕௚઀ѻ͑Δ
    0CTFSWBCMF
    ͳܕͱͯ͠
    4UBUF
    ͕༻ҙ͞Ε͓ͯΓɺ-JWF%BUB
    Λ
    PCTFSWF"T4UBUF
    Ͱ
    $PNQPTF
    Ͱ؍ଌͰ͖ΔΑ͏ʹ
    w -JWF%BUBɺ4UBUF'MPXɺ 3Y+BWB
    ͸
    4UBUF
    ʹม׵͢Δ ࢓૊Έ͕༻ҙ͞Ε͍ͯΔ
14. 'SBHNFOU
    ʹ
    $PNQPTF
    Λදࣔ w $PNQPTF7JFX
    Λ
    'SBHNFOU
    ͷ
    7JFX
    ʹઃఆ͠ɺTFU$POUFOU
    ಺ʹ
    $PNQPTF
    Λॻ͚ͩ͘
    w .ED5IFNF
    ͸ϓϩδΣΫτͰઃఆ͞ Ε͍ͯΔ
    5IFNF
    Λ
    $PNQPTF
    ͷ
    5IFNF
    ʹஔ͖׵͑ͯ͘ΕΔ΋ͷ
    w IUUQTHJUIVCDPNNBUFSJBM DPNQPOFOUTNBUFSJBM DPNQPOFOUTBOESPJEDPNQPTF UIFNFBEBQUFS
15. ଞͷը໘΋Ҡߦ͢Δ w جຊతʹͲͷը໘Ͱ΋खॱ͸ಉ͡Ͱ
     طଘͷ
    7JFX
    ͱಉ͡σβΠϯͷ
    $PNQPTBCMF
    GVO
    Λ࣮૷͢Δ
     "DUJWJUZ
    PS
    'SBHNFOU
    ͷը໘୯ҐͰ
    $PNQPTF
    ΁ஔ͖׵͑Δ
    Ͱஔ͖׵͍͖͑ͯ·͢
    w ଞͷը໘ͷஔ͖׵͑͸লུ͠·͢
16. ը໘ભҠΛҠߦ͢Δ w ࠓճ͸
    +FUQBDL
    ʹ͋Δ
    /BWJHBUJPO
    $PNQPTF
    Λ࢖ͬͯભҠॲཧΛ࣮૷
    w IUUQTEFWFMPQFSBOESPJEDPNKFUQBDLDPNQPTFOBWJHBUJPO
    w /BWJHBUJPO
    $PNQPTF
    Λ࢖ΘͣʹભҠॲཧΛؤு࣮ͬͯ૷͢Δ͜ͱ΋Ͱ͖Δ
17. ը໘ͷάϥϑΛ࣮૷͢Δ w /BW)PTU
    ͷதͰ
    DPNQPTBCMF
    Λ࢖༻͠ ͯભҠʹ࢖͏
    SPVUF
    ͱ
    $PNQPTBCMF
    ͷ ఆٛΛ࣮૷͢Δ
    w /BWJHBUJPO
    ͷ
    ,PUMJO
    %4-
    ͷ࣮૷ͱಉ ͡
    w ͜ͷ
    DPNQPTBCMF
    Ͱ͸
    SPVUF
    
    ʹઃఆ͠ ͨύεͰ
    %FFQMJOL
    Λੜ੒ͯ͠ભҠΛ࣮ ݱ͍ͯ͠Δ
    w /BW$POUSPMMFS
    ʹఆٛͯ͋͠Δ
    SPVUF
    Λ ౉ͤ͹ભҠͰ͖Δ
18. ભҠઌͷը໘ʹ஋Λ౉͢ w SPVUF
    ʹ౉͍ͨ͠஋Λఆٛ͠ɺ BSHVNFOUT
    ʹܕ৘ใΛఆٛ͠·͢
    w ड͚औΔ࣌͸
    DPNQPTBCMF
    ʹฦͬ ͯ͘Δ
    /BWCBDL4UBDL&OUSZ
    ͔Β ड͚औΓ·͢
    w ભҠ࣌ʹ
    4FSJBMJ[BCMF
    ΍
    1BSDFMBCMF
    Λ౉͢खஈ͸
     BMQIB
    ࣌఺Ͱ͸ͳ͍
19. ը໘ભҠΛҠߦ͢Δ w ϧʔτͷ
    "DUJWJUZ
    ʹ
    TFU$POUFOU
    Ͱ
    $PNQPTF
    Λද ࣔ͢ΔΑ͏ʹ͢Ε͹Ҡߦ׬ྃ
20. $PNQPTF
    ʹҠߦͯ͠Έͯ w طଘͷ
    7JFX
    ͱ
    $PNQPTF
    ʹޓ׵͕͋Δ͔Βಋೖ͠΍͍͢
    w ࠓճ͸͍ͯ͠ͳ͍͕
    $PNQPTF
    ʹ͜Ε·Ͱͷ
    7JFX
    Λදࣔͤ͞Δ͜ͱ΋Մೳ
    w ը໘ભҠͷҠߦ͕೉ॴͰɺ'SBHNFOU
    
    /BWJHBUJPO
    ͱ
    /BWJHBUJPO
    $PNQPTF
    ͷซ༻͕೉͘͠ɺશͯͷը໘ભҠΛҰ౓ʹஔ͖׵͑ΔͱͳΔͱίετ͕ߴ͍
    w 'SBHNFOU
    
    /BWJHBUJPO
    ͸ͦͷ··ʹத͚ͩ
    $PNQPTF
    Λ࢖͏ͷ͕ࠓͷͱ ͜Ζແ೉ͦ͏
    w $PNQPTF
    ࣗମ͸׳ΕΔͱշదʹϨΠΞ΢τͰ͖Δ
21. $PNQPTF
    Λݟӽͯ͠ࠓͰ͖Δ͜ͱ w "OESPJE
    "SDIJUFDUVSF
    $PNQPOFOU
    ʹଇ࣮ͬͨ૷ɾઃܭΛ͍ͯ͠Δ͜ͱ
    w ެ͔ࣜΒ΋
    (VJEF
    UP
    BQQ
    BSDIJUFDUVSF
    ͱ͍͏υΩϡϝϯτ͕༻ҙ͞Ε͍ͯΔ
    w IUUQTEFWFMPQFSBOESPJEDPNKFUQBDLHVJEF
    w ݫີʹ͸
    7JFX
    ʹ࣋ͭ΂͖Ͱͳ͍ϩδοΫ΍ঢ়ଶΛ͍࣋ͬͯͳ͍͜ͱ
    w $PNQPTF
    ΁ͷஔ͖׵͑Ͱඞཁͳมߋ͕
    7JFX
    ͚ͩʹ཈͑Δ͜ͱ͕Ͱ͖Δ
    w $PNQPTF
    Λ৮͓ͬͯ͘͜ͱ
22. ࢀߟ
    w IUUQTEFWFMPQFSBOESPJEDPNKFUQBDLDPNQPTF
    w IUUQTEFWFMPQFSBOESPJEDPNKFUQBDLDPNQPTFJOUFSPQ
    w IUUQTEFWFMPQFSBOESPJEDPNKFUQBDLHVJEF
    w IUUQTHJUIVCDPNNBUFSJBMDPNQPOFOUTNBUFSJBMDPNQPOFOUTBOESPJEDPNQPTFUIFNFBEBQUFS
    w IUUQTHJUIVCDPNDISJTCBOFTBDDPNQBOJTU
    Ҡߦʹ࢖༻ͨ͠ϓϩδΣΫτ
    w IUUQTHJUIVCDPNVIPPJ6IPPJ1JD#PPL"OESPJE
    w 5IBOLT
    !UIF@VIPPJ
    
    'PSL
    ઌͰࢼ͠ʹ
    $PNQPTF
    ΁Ҡߦͨ͠
    13
    w IUUQTHJUIVCDPN/6NFSP"OE%FW6IPPJ1JD#PPL"OESPJEQVMM
23. 5IBOL
    ZPV