Android Javaの既存アプリをKotlin × DataBindingで書き換えている話 / Kotlin with DataBinding

2017.04.13
potatotips #39 (iOS/Android開発Tips共有会)
https://potatotips.connpass.com/event/51176/

Transcript

1. "OESPJE
   +BWBͷطଘΞϓϦΛ ,PUMJO
   ʷ
   %BUB#JOEJOHͰ
   ॻ͖׵͍͑ͯΔ࿩ !TIBOPOJN
2. ࣰݪ
   ߂ޫ
   )JSPNJUTV
   4IJOPIBSB !TIBOPOJN
3. Ξό΢τϛʔ w "OESPJE։ൃྺ
   ೥
   w ,PUMJOྺ
   ϲ݄
5. ΦΠγοΫε w ໺ࡊ&$
   w ࣗવ೿৯඼ͷ୐഑αʔϏε ग़య
   IUUQTFDDMBCFNQPXFSTIPQDPKQBSDIJWFT
6. "OESPJE
   +BWBͷطଘΞϓϦΛ
   ,PUMJO
   ʷ
   %BUB#JOEJOHͰ
   ॻ͖׵͍͑ͯΔ࿩
7. ࠓ೔࿩͢͜ͱ w ։ൃ͍ͯ͠ΔΞϓϦʹ͍ͭͯ
   w ,PUMJOʷ%BUB#JOEJOHΛಋೖ͖͔͚ͨͬ͠
   w νʔϜ಺Ͱҙ͍ࣝͯ͠Δ։ൃϧʔϧ
8. w αϒεΫϦϓγϣϯܕ&$
   w ձһ޲͚ΞϓϦʢ৽نొ࿥͸8FCͷΈʣ ΞϓϦ
9. ΞϓϦ w J04൛ϦϦʔεࡁΈ
   w "OESPJE൛͸ॾࣄ৘ʹΑΓ։ൃQFOEJOHঢ়ଶ
10. ʰΞϓϦϑΝʔετͰ΍͍ͬͯͧ͘ʱ
12. "OESPJEΞϓϦϓϩδΣΫτ࢝ಈ
13. ঢ়گ w 8FC7JFX൛ΛઌߦϦϦʔεʢ೥຤ʣ
    w ωΠςΟϒ൛͸ׂ׬੒ w ϥΠϒϥϦͱ͔ઃܭ͕݁ߏݹ͍ʜ
    w ػೳ͸࢒ͭͭ͠ɺϞμϯʹ࡞Γม͍͑ͨ
14. ,PUMJO
    
    'FCSVBSZ
    
    
15. ,PUMJO w +FU#SBJOT͕։ൃ͢Δ+7.ݴޠ
    w +BWBΑΓ΋؆ܿʹॻ͚Δ͜ͱΛ໨ࢦͯ͠։ൃ
    w /VMM҆શʢ/1&ΛΏΔ͞ͳ͍ʣ
    w "OESPJEΞϓϦք۾Ͱಋೖྫ͕૿͍͑ͯΔ
16. ,PUMJO w ৽͍͜͠ͱ΍ͬͯΔײ͋Δ
    w ੎͍͕ײ͡ΒΕΔ
    w ໊લ͕͔Θ͍͍
    w ΤϯδχΞͷ࠾༻ʹΑͦ͞͏
17. ,PUMJOಋೖ͢ΔͳΒࠓʜ
18. #JOEJOHͲ͏͢Δ໰୊ w #VUUFS,OJGF
    ܥͩͬͨ
    w Ұ౓#VUUFS,OJGF
    ܥʹ6QEBUF͚ͨ͠Ͳɺɹɹɹ ϥΠϒϥϦಉ࢜ͷ૬ੑ͕ඍົ
    w ͍͍ײ͡ʹ૒ํ޲όΠϯσ Οϯά΍Γ͍ͨ
19. %BUB#JOEJOHಋೖ͢ΔͳΒࠓʜ
20. ʰ΄ΜͱʹμΠδϣϒʁʱ
21. ྑ͍લఏ৚݅ w ੈͷதʹ·ͩϦϦʔε͍ͯ͠ͳ͍ϓϩμΫτͷ։ൃ
    w ؾ࣋ͪతͳ༨༟
    w ࣌ؒతͳ༨༟
    w "OESPJE։ൃʹؔͯ͠஌ࣝͷ͋Δϝϯόʔ
    w ,PUMJOͷݴޠతʹΘ͔Βͳ͍ͱ͜Ζ͑͞शಘ͢Ε͹ ։ൃ଎౓͸ͦ͜·Ͱམͪͳ͍ʢΉ͠ΖՃ଎ʣ
22. νʔϜ಺ͷϧʔϧ࡞Γ w ϨϏϡʔମ੍
    w ਓҎ্͕ϨϏϡʔͰ͖Δঢ়گΛ࡞Δ
    w ػೳ໘͸"͞Μɺจ๏໘͸#͞Μ͕ϨϏϡʔ
    w ͓ޓ͍ͷεΩϧ޲্ʹ΋ྑ͍
23. νʔϜ಺ͷϧʔϧ࡞Γ w ,PUMJO΁ͷ$POWFSU
    w ʰ$POWFSU
    +BWB
    'JMF
    UP
    ,PUMJO
    'JMFʱ
    w $POWFSU͚ͩͷCSBODIΛ౎౓࡞ͬͯEFWFMPQ΁ɹ ηϧϑNFSHFͯ͠Α͍͜ͱʹͨ͠
24. νʔϜ಺ͷϧʔϧ࡞Γ w ϦϑΝΫλϦϯάਪ঑
    w ,PUMJOͰॻ͖қ͘ͳͬͨͱ͜Ζ
    w %BUB#JOEJOHͰॻ͖қ͘ͳͬͨͱ͜Ζ
26. ࠓޙ w ϝΠϯΞϓϦҎ֎ͷ։ൃ΋ɺੵۃతʹ,PUMJOਪ͠
29. ͕Μ͹Δɻ
30. ,PUMJO΍͍͖͍ͬͯͨϑϨϯζ
 
 8&`3&
    )*3*/(
    
33. pOJTI