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Select API from Kotlin Coroutine

Avatar for Matsuda Jumpei Matsuda Jumpei
June 20, 2025
Programming
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Select API from Kotlin Coroutine

5m LT / Shibuya.apk #53 - https://shibuya-apk.connpass.com/event/356435/
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Matsuda Jumpei

June 20, 2025
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Transcript

  1. 4IJCVZBBQL+VNQFJ.BUTVEB LPUMJOYDPSPVUJOFTTFMFDUT 4FMFDU"1*GSPN,PUMJO$PSPVUJOF

  2. 2 Jumpei Matsuda @red_fat_daruma A Senior Software Engineer at Drivemode,

    Inc. My preferences 👇 Android App and SDK Development Gradle Plugin Development Development Productivity Engineering .F https://www.drivemode.com/

  3. 4FMFDU"1*BLB4FMFDU&YQSFTTJPO w Կ೥΋લ͔Βଘࡏ͢ΔͷʹӨ͕ബ͍ ݸਓͷײ૝Ͱ͢  w ଞͷྗٕͰॻ͚ͯ͠·͏৔໘͕ଟ͘ɺؾ͔ͮΕͳ͍ ݸਓͷײ૝Ͱ͢  w

    Կ೥΋લ͔Βଘࡏ͢Δͷʹͣͬͱ&YQFSJNFOUBM ࣄ࣮Ͱ͢ 3

  4. 4FMFDU"1*BLB4FMFDU&YQSFTTJPO w DPSPVUJOFͷ଴ͪ߹ΘͤΛએݴతʹදݱͰ͖Δ 4

  5. 4FMFDU"1*جຊߏ੒ w TFMFDUCVJMEFS"1* w DMBVTFΛొ࿥͢ΔͨΊͷಛघͳ"1* w TFMFDUDMBVTF"1* w $PNQMFUJPO΍TVTQFOTJPOQPJOUͷ͋ΔDPSPVUJOFදݱʹੜ͍͑ͯΔ w

    FH%FGFSSFE +PC 3FDFJWF$IBOOFM 4FOE$IBOOFM FUD w جຊ࣮૷͸JOUFSOBMՄࢹੑͰ࣮ݱ͞Ε͓ͯΓɺ৽ن௥Ճ͸ࠔ೉ 5

  6. 4FMFDU"1*ͷେ࿮ͷྲྀΕ ˞࣮ࡍʹ͸ඇઢܗ࣮૷  3FHJTUSBUJPO1IBTF w CVJMEFSͷධՁ֤छTFMFDUDMBVTFΛొ࿥͢Δ  8BJUJOH1IBTF w ొ࿥͞ΕͨTFMFDUDMBVTFͷ׬ྃΛ଴ػ͢Δ

     $PNQMFUJPO1IBTF w ݁ՌऔಘͳͲɺొ࿥͞ΕͨTFMFDUDMBVTFͷย෇͚ 6

  7. Θ͔ΒΜ 7

  8. &YQFSJNFOUBMͳͷͰͦͦ͜͜ʹ w DPSPVUJOFͷ଴ͪ߹Θͤʹ࢖͑Δͱ֮͑Δ w ໋ྩతͰ͸ͳ͘એݴతʹදݱͰ͖Δͱ֮͑Δ w ొ࿥ॱΛέΞ͢ΔTFMFDU͔ɺෆఆͷTFMFDU6OCJBTΛ࢖͍෼͚Δͱ֮͑Δ w ಉ࣌ʹෳ਺ͷDPSPVUJOF͕ऴྃ͢Δ͜ͱ͸ك͕ͩ༗ΓಘΔͷͰ஫ҙ 8

  9. ར༻ྫFMWJTPQFSBUPS஍ࠈճආ 9

  10. ར༻ྫίϯςΫετͷ࢓෼͚ 10

  11. ར༻ྫ$IBOOFM؂ࢹύλʔϯ 11

  12. ར༻ྫDPNCJOFͱ[JQͷڱؒ 12 1 2 3 a b c fl PX#

    fl PX"

  13. ར༻ྫDPNCJOFͱ[JQͷڱؒ 13 1 2 3 a b c 1a 1b

    2b 2c 3c DPNCJOF fl PX# fl PX"

  14. 14 1 2 3 a b c 1a 1b 2b

    2c 3c 1a 2b 3c DPNCJOF [JQ fl PX# fl PX" ར༻ྫDPNCJOFͱ[JQͷڱؒ

  15. 15 1 2 3 a b c 1a 1b 2b

    2c 3c 1a 2b 3c DPNCJOF [JQ fl PX# fl PX" 1? 1? 2 2? 3 1 fl PX"͸ͦͷ··ྲྀͭͭ͠ɺ fl PX#ͷཁૉ͕དྷͨΒɺ࠷৽ͷ "ཁૉͱҰॹʹԿ͔͍ͨ͠ ར༻ྫDPNCJOFͱ[JQͷڱؒ

  16. ར༻ྫDPNCJOFͱ[JQͷڱؒ 16 w ղઆ͚ͩͰ෼͔͔ΔͷͰׂѪ w ެࣜͷTBNQMFPQFSBUPS͕ࢀߟʹͳΓ·͢

  17. ·ͱΊ w DPSPVUJOFͷ଴ͪ߹ΘͤΛએݴతʹॻ͚Δ w $PSPVUJOFૢ࡞ʹ͋Γ͕ͪͳωετߏ଄ΛݮΒͤΔ w ໋ྩతͳ'MPXૢ࡞Λએݴతͳදݱʹஔ׵Ͱ͖Δ w ίʔυͷ࣮ݱྗ͕޿͕Δ w

    ߴ౓ͳ$VTUPN'MPX0QFSBUPSΛ࡞੒Ͱ͖Δ 17