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【ハピバ】未来に備えたKotlin、大好きだぜ!【Kotlin 1.0】
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RyotaMurohoshi
February 26, 2016
Technology
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【ハピバ】未来に備えたKotlin、大好きだぜ!【Kotlin 1.0】
2016年02月26日(金)に開催された、【東京】Kotlin Birthday Party
での発表資料です!
エモいやつです。
#jkug
RyotaMurohoshi
February 26, 2016
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Transcript
ະདྷʹඋ͑ͨKotlinɺେ͖ͩͥʂ @RyotaMurohoshi 201602݄26(ۚ)'ʲ౦ژʳKotlin'Birthday'Party
Kotlinɺ1.0ϦϦʔε ͓ΊͰͱ͏͍͟͝·͢
0.xܥͰݴޠ༷ͷഁյతมߋʹɺ ۤ͠ΜͩΓͨ͠ਓଟ͍ͷͰʂʁ
1.0͕ϦϦʔε͞Εͨࠓɺݴޠ༷ͷ ഁյతมߋʹۤ͠Ή͜ͱ͋Γ·ͤΜͶʂ
خ͍͠Ͱ͢Ͷʂʂʂ
Μɺຊʹخ͍͚ͩ͠Ͱ͔͢Ͷʂʁ
ҧ͏ݟํΛ͠·͠ΐ͏
1.0͕ϦϦʔε͞ΕͨͷͰഁյతͳมߋ͕ೖΒͳ͘ͳͬͨͷͰͳ͘ɺඞཁͳഁյతͳมߋΛ ؆୯ʹೖΕΒΕͳ͘ͳͬͨ ͱ͍͏ΑΓɺ ඇৗʹೖΕΔ͜ͱ͕͘͠ͳͬͨ
ࣗݾհ͠·͢
ΉΖ΄͠(@RyotaMurohoshi)/Ͱ͢ɻ C#erͰ͢ʂ
ͯͯ͞͞ɺΈͳ͞Μ
async
typeof
yield
sealed
͜ΕͳΜͰ͠ΐ͏͔ʁ
ͦ͏ʂ
શ෦C#ͷΩʔϫʔυͰ͢Ͷʂ
ஊͰ͢
ʁʁʁʁʁ • async • typeof • yield • sealed
Kotlin1.0*Beta4Ͱ༧*or*৽ͨͳจ຺Ͱ༧͞Εͨͷ • async • typeof • yield • sealed sealedతσʔλܕͱ͔Ͱͬͯ·ͨ͠ΑͶ
ankoͷதʹasync֦ͬͯுؔ͋Γ͢ΑͶ
yield༧͞Ε͚ͨͩͰ͢ɻ Կ͔ҙຯͷ͋ΔΩʔϫʔυͰ͋Γ·ͤΜɻ
ankoʹasync֦ͬͯு͕ؔ͋Γ·͢Ͷ
Kotlin1.0*Beta4Ҏલͷankoͷasync async { // ͜͜ʹ࣌ؒͷ͔͔Δॲཧ uiThread { toast("࣌ؒͷ͔͔Δॲཧ͕ऴΘͬͨΑʂ") } }
Kotlin1.0*Beta4͔Βͷankoͷasync async({ // ͜͜ʹ࣌ؒͷ͔͔Δॲཧ uiThread { toast("࣌ؒͷ͔͔Δॲཧ͕ऴΘͬͨΑʂ") } }) {ͷલͰasync͕༧͞Ε͍ͯΔͷͰɺ()͕ඞཁʹ
ͳͥ1.0ϦϦʔεલʹ ͜Μͳ͜ͱΛͨ͠ͷͰ͠ΐ͏͔ʁ
ະདྷͷͨΊ Ͱ͢ΑͶ
ݴޠ͕ਖ਼ࣜʹϦϦʔε͞ΕͨޙͰɺ ഁյతͳมߋେม͍͠Ͱ͢ΑͶ!or!֮ޛ͕͍Γ·͢ΑͶ ϦϦʔε͞ΕΔલʹഁյతͳมߋೖΕΔඞཁ͕͋ͬͨΜͰ͢Ͷʙ ͑ɺSwi$ʹPython͕ͳΜͩͬͯʙʂʁ
͜ͷલͷKotlin'AndroidษڧձͰ JetBrainsͷதͷਓ*@yanex_ru*͞Μʹ Kotlinͷݴޠ༷ͷഁյతͳมߋʹ͍࣭ͭͯ͠·ͨ͠
࣭ͷճͷͬ͘͟Γཁ ຊʹඞཁͳΒഁյతͳมߋΛೖΕΔ ͔͠͠ɺͳΔ͘ഁյతͳมߋΛආ͚ɺ όʔδϣϯؒͷޓੑΛαϙʔτ͍ͨ͠ ͱͷ͜ͱͰͨ͠Ͷ
Kotlin1.0*Beta4Ͱ༧*or*৽ͨͳจ຺Ͱ༧͞Εͨͷ • async • typeof • yield • sealed ͜ΕΒকདྷతͳഁյతͳมߋΛগͳ͘͢ΔͨΊͷมߋ
ͪΐͬͱC#ͷ
C#KotlinΈ͍ͨͳnullඇڐ༰ͳػೳ͕ཉ͍ͬͯ͠ҙݟ͕ɻ ͚ͲޙํޓੑΛߟ͑Δͱͳ͔ͳ͔؆୯Ͱͳ͍ ͠ɺ1͔Βઃܭ͢ΔͳΒࢀরܕʹnullඇڐ༰ΛೖΕ͍ͨͱͷ͜ͱ h"ps:/ /ufcpp.wordpress.com/2012/04/10/null%E9%9D%9E%E8%A8%B1%E5%AE%B9/
Kotlin'1.0ɺͳ͔ͳ͔ग़·ͤΜͰͨ͠Ͷ ࣌ؒΛ͔͚ͯޙํޓੑͷՄೳੑΛߟྀͨͨ͠ΊΒ͍͠Ͱ͢Ͷɻ ඇৗʹ͍͍͜ͱͩͱࢥ͍·͢ʂ
ະདྷʹඋ͑ͯ
·ͨC#ͷ WindowsͪΖΜɺAndroidɺiOSɺMacɺՈఉ༻ήʔϜ ༷ʑͳϓϥοτϑΥʔϜͰC#ͷͷ͕ଘࡏ͠·͢
ࠓKotlinͷ׆༂ͷAndroid͕ଟ͍͔͠Ε·ͤΜɻ 5ޙ10ޙɺC#ͷ༷ʹߋʹ׆༂ͷ͕͕Δ͔͠Ε·ͤΜ ͦͷͨΊʹɺ1.0ͷ४උظؒେࣄͳ४උظؒͩͬͨͱࢥ͍·͢ʂ ݸਓతʹͬͱ͍͍ͯ͘ͷ͔ͱࢥͬͯ·ͨ͠
Kotlinɺ1.0ϦϦʔε ͓ΊͰͱ͏͍͟͝·͢
ະདྷʹඋ͑ͨKotlinɺେ͖ͩͥʂ @RyotaMurohoshi