移りゆくデファクトスタンダードにチームとしてどう追従するか

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ҠΓΏ͘σϑΝΫτελϯμʔυ ʹνʔϜͱͯ͠Ͳ͏௥ै͢Δ͔ Taikai Masuda / tk-masuda Oisix ra daichi inc. Android Developer 1

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ຊηογϣϯͷΰʔϧ σϑΝΫτελϯμʔυͱ൑அ͢Δج४ΛνʔϜͰ࣋ͯΔΑ͏ʹͳΔ ໨తʹର͢ΔҰͭͷखஈͱͯ͠σϑΝΫτελϯμʔυʹ௥ै͢Δબ୒Λߦ͑ ΔΑ͏ʹͳΔ Ͳ͜·Ͱ௥ै͢Δ͔ͷબ୒ ௥ै͠ͳ͍બ୒ 2

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Agenda 3 01 σϑΝΫτελϯμʔυͱ͸ 02 ͲͷΑ͏ʹ൑அ͢Δ͔ 03 ௥ै͍ͯͨ͘͠Ίʹ 04 ࣮ମݧɺtips

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Agenda 4 01 σϑΝΫτελϯμʔυͱ͸ 02 ͲͷΑ͏ʹ൑அ͢Δ͔ 03 ௥ै͍ͯͨ͘͠Ίʹ 04 ࣮ମݧɺtips

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“ެతͳඪ४ظ͔ؒΒͷೝূͰ͸ͳ͘ɺࢢ৔ ʹ͓͚Δاۀؒͷڝ૪ʹΑͬͯɺۀքͷඪ४ ͱͯ͠ೝΊΒΕΔΑ͏ʹͳͬͨن֨ͷ͜ͱ” 5 σϑΝΫτελϯμʔυ ΢ΟΩϖσΟΞʢWikipediaʣ:ϑϦʔඦՊࣄయ

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֤༻ޠͷΠϝʔδ 6 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ Ϟμϯ 7 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ Ϟμϯ ࠷৽ٕज़͕ͩ࢖༻࣮੷͕গͳ͍ 8 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ Ϟμϯ ࠷৽ٕज़͕ͩ࢖༻࣮੷͕গͳ͍ Experimentalͳ΋ͷͰ͸ͳ͍ 9 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ Ϟμϯ ࠷৽ٕज़͕ͩ࢖༻࣮੷͕গͳ͍ Experimentalͳ΋ͷͰ͸ͳ͍ Ver 1.xҎ্ͰϦϦʔε͞Ε͍ͯΔΑ͏ͳ΋ͷ 10 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ Ϟμϯ ࠷৽ٕज़͕ͩ࢖༻࣮੷͕গͳ͍ Experimentalͳ΋ͷͰ͸ͳ͍ Ver 1.xҎ্ͰϦϦʔε͞Ε͍ͯΔΑ͏ͳ΋ͷ →ϓϩμΫτ࠾༻͕ݟૹΒΕΔ܏޲ 11 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ ϨΨγʔ 12 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ ϨΨγʔ ୅ସٕज़͕͋Δ 13 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ ϨΨγʔ ୅ସٕज़͕͋Δ ࢖ΘΕͳ͘ͳٕͬͨज़ 14 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ ϨΨγʔ ୅ସٕज़͕͋Δ ࢖ΘΕͳ͘ͳٕͬͨज़ ߋ৽͞Εͳ͘ͳٕͬͨज़ 15 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ ϨΨγʔ ୅ସٕज़͕͋Δ ࢖ΘΕͳ͘ͳٕͬͨज़ ߋ৽͞Εͳ͘ͳٕͬͨज़ →ϓϩμΫτ࠾༻͕ݟૹΒΕΔ܏޲ 16 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ σϑΝΫτελϯμʔυ 17 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ σϑΝΫτελϯμʔυ ޿͘࢖ΘΕ͍ͯΔ΋ͷ 18 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ σϑΝΫτελϯμʔυ ޿͘࢖ΘΕ͍ͯΔ΋ͷ ࢖͏ʹ͋ͨͬͯݱࡏ࣌఺Ͱ՝୊ײ͕࠷΋গͳ͍΋ͷ 19 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ σϑΝΫτελϯμʔυ ޿͘࢖ΘΕ͍ͯΔ΋ͷ ࢖͏ʹ͋ͨͬͯݱࡏ࣌఺Ͱ՝୊ײ͕࠷΋গͳ͍΋ͷ ޷ح৺͔Β͘Δ࢖ͬͯΈ͍ͨɺͰ͸ͳ͍ 20 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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֤༻ޠͷΠϝʔδ σϑΝΫτελϯμʔυ ޿͘࢖ΘΕ͍ͯΔ΋ͷ ࢖͏ʹ͋ͨͬͯݱࡏ࣌఺Ͱ՝୊ײ͕࠷΋গͳ͍΋ͷ ޷ح৺͔Β͘Δ࢖ͬͯΈ͍ͨɺͰ͸ͳ͍ →ϓϩμΫτ࠾༻͞ΕΔ܏޲ 21 ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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22 Ϟμϯ ϨΨγʔ ̓ ֤༻ޠͷΠϝʔδ ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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23 Ϟμϯ ϨΨγʔ σϑΝΫτ ελϯμʔυ ̓ ֤༻ޠͷΠϝʔδ ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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24 Ϟμϯ ϨΨγʔ σϑΝΫτ ελϯμʔυ ̓ ֤༻ޠͷΠϝʔδ ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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25 Ϟμϯ ϨΨγʔ σϑΝΫτ ελϯμʔυ ̓ ֤༻ޠͷΠϝʔδ ϞμϯɺϨΨγʔɺσϑΝΫτελϯμʔυ

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“ެతͳඪ४ظ͔ؒΒͷೝূͰ͸ͳ͘ɺࢢ৔ ʹ͓͚Δاۀؒͷڝ૪ʹΑͬͯɺۀքͷඪ४ ͱͯ͠ೝΊΒΕΔΑ͏ʹͳͬͨن֨ͷ͜ͱ” 26 σϑΝΫτελϯμʔυ ΢ΟΩϖσΟΞʢWikipediaʣ:ϑϦʔඦՊࣄయ

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“ެతͳඪ४ظ͔ؒΒͷೝূͰ͸ͳ͘ɺࢢ৔ ʹ͓͚Δاۀؒͷڝ૪ʹΑͬͯɺۀքͷඪ४ ͱͯ͠ೝΊΒΕΔΑ͏ʹͳͬͨن֨ͷ͜ͱ” σϑΝΫτελϯμʔυ ΢ΟΩϖσΟΞʢWikipediaʣ:ϑϦʔඦՊࣄయ 27

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Android։ൃͷඪ४ 28

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29 ݴޠ Java Kotlin https://kotlinlang.org/

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30 πʔϧ AndroidStudio Gradle

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31 ઃܭ MVVMɺMVPɺFluxɺRedux Repositoryύλʔϯ https://developer.android.com/topic/ architecture/ui-layer https://developer.android.com/topic/ architecture/data-layer

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32 ։ൃ؀ڥ CI/CD Linter Formatter

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33 ςετ JUnit Truth Espresso Robolectric Mockito

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34 ओཁϥΠϒϥϦ ௨৴ Retrofit UI JetpackComposeɺCoil DI daggerɺKoin https://developer.android.com/jetpack/compose? hl=ja

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Android։ൃͷඪ४ ݴޠ πʔϧ ઃܭ ։ൃ؀ڥ ςετ ओཁϥΠϒϥϦ 35

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Agenda 36 01 σϑΝΫτελϯμʔυͱ͸ 02 ͲͷΑ͏ʹ൑அ͢Δ͔ 03 ௥ै͍ͯͨ͘͠Ίʹ 04 ࣮ମݧɺtips

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σϑΝΫτελϯμʔυͷ൑அج४ 37 Ϟμϯ ϨΨγʔ σϑΝΫτ ελϯμʔυ ̓

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σϑΝΫτελϯμʔυͷ൑அج४ 38 ϞμϯˠσϑΝΫτελϯμʔυ Ϟμϯ σϑΝΫτ ελϯμʔυ ̓

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σϑΝΫτελϯμʔυͷ൑அج४ 39 σϑΝΫτελϯμʔυˠϨΨγʔ ϨΨγʔ σϑΝΫτ ελϯμʔυ ̓

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൑அ͢Δࡐྉ 40

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41 χϡʔειʔε Android Developers Blog Japan Android Developers Blog

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42 χϡʔειʔε Android Developers Blog Japan Android Developers Blog Android Developers - Medium

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43 χϡʔειʔε Android Developers Blog Japan Android Developers Blog Android Developers - Medium PRO ANDROID DEV

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44 χϡʔειʔε Android Developers Blog Japan Android Developers Blog Android Developers - Medium PRO ANDROID DEV Android Dagashi

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45 ͦͷଞ ษڧձ ΧϯϑΝϨϯε

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46 ͦͷଞ ษڧձ ΧϯϑΝϨϯε ٕज़ॻ

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47 ͦͷଞ ษڧձ ΧϯϑΝϨϯε ٕज़ॻ པΕΔਓΛݟ͚ͭΔ SNS ٕज़ސ໰

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൑அج४ 48

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൑அج४ ໌֬ͳఆྔͰ͸൑அͰ͖ͳ͍ 49

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൑அج४ ໌֬ͳఆྔͰ͸൑அͰ͖ͳ͍ ʮ࢖ͬͯΈͨʯ͸·ͩϞμϯ 50

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൑அج४ ໌֬ͳఆྔͰ͸൑அͰ͖ͳ͍ ʮ࢖ͬͯΈͨʯ͸·ͩϞμϯ Ή͠Ζهࣄ͕ग़ͳ͘ͳ͖ͬͯͨ͋ͨΓ ʮ͑ʁ౰ͨΓલͩΑͶʁʯ 51

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൑அج४ ໌֬ͳఆྔͰ͸൑அͰ͖ͳ͍ ʮ࢖ͬͯΈͨʯ͸·ͩϞμϯ Ή͠Ζهࣄ͕ग़ͳ͘ͳ͖ͬͯͨ͋ͨΓ ʮ͑ʁ౰ͨΓલͩΑͶʁʯ Ԡื৚݅΍࠾༻໘઀Ͱʮxxx͸࢖͑·͔͢ʁʯͱฉ͔ΕΔΑ͏ͳ΋ͷ 52

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ۃ࿦ɺओ؍ 53

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൑அج४ 54 σϑΝΫτελϯμʔυͱࢥΘΕΔྫ

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൑அج४ JetpackCompose 55 σϑΝΫτελϯμʔυͱࢥΘΕΔྫ https://developer.android.com/jetpack/compose?hl=ja

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൑அج४ Modularization 56 σϑΝΫτελϯμʔυͱࢥΘΕΔྫ https://developer.android.com/topic/modularization

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൑அج४ 57 ϞμϯͱࢥΘΕΔྫ

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൑அج४ StableͰ͸ͳ͍ϥΠϒϥϦ Alpha Beta RC 58 ϞμϯͱࢥΘΕΔྫ

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൑அج४ 59 ఆྔͰ൑அΛޡΔྫ

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൑அج४ Agera 60 ఆྔͰ൑அΛޡΔྫ

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൑அج४ Agera Star਺ଟΊ ౰࣌ϞμϯͰʮ࢖ͬͯΈͨʯهࣄ͕େྔ 61 ఆྔͰ൑அΛޡΔྫ

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൑அج४ Agera Star਺ଟΊ ౰࣌ϞμϯͰʮ࢖ͬͯΈͨʯهࣄ͕େྔ ϞμϯˠϨΨγʔ ϞμϯˠσϑΝΫτελϯμʔυʹͳΒͳ͔ͬͨྫ 62 ఆྔͰ൑அΛޡΔྫ

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Agenda 63 01 σϑΝΫτελϯμʔυͱ͸ 02 ͲͷΑ͏ʹ൑அ͢Δ͔ 03 ௥ै͍ͯͨ͘͠Ίʹ 04 ࣮ମݧɺtips

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ඞཁੑΛߟ͑Δ 64 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ deprecatedʢඇਪ঑ʣ 65 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ deprecatedʢඇਪ঑ʣ ະདྷతʹ࢖͑ͳ͘ͳΔ 66 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ deprecatedʢඇਪ঑ʣ ະདྷతʹ࢖͑ͳ͘ͳΔ ΞοϓσʔτͰ͖ͳ͘ͳΔ 67 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ ՝୊ͷ์ஔ 68 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ ՝୊ͷ์ஔ ৽͍ٕ͠ज़͸ࠓ·Ͱೝ஌͞Ε͍ͯͳ͔ͬͨ՝୊Λղܾ͢Δ΋ͷͰ͋Δ͜ͱ͕ ଟ͍ 69 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ ՝୊ͷ์ஔ ৽͍ٕ͠ज़͸ࠓ·Ͱೝ஌͞Ε͍ͯͳ͔ͬͨ՝୊Λղܾ͢Δ΋ͷͰ͋Δ͜ͱ͕ ଟ͍ ʮ௥ै͠ͳ͍ʯͱ͍͏͜ͱ͸ɺੈؒҰൠͰ՝୊ͱ͞Ε͍ͯΔ΋ͷΛ์ஔ͢Δ ͜ͱʹ΄͔ͳΒͳ͍ 70 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ ະདྷɺطଘνʔϜϝϯόʔͷϞνϕʔγϣϯ 71 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ ະདྷɺطଘνʔϜϝϯόʔͷϞνϕʔγϣϯ ࠾༻Ͱ͖ͳ͍ 72 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ ະདྷɺطଘνʔϜϝϯόʔͷϞνϕʔγϣϯ ࠾༻Ͱ͖ͳ͍ طଘϝϯόʔͷ཭୤ͷՄೳੑ 73 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ ະདྷɺطଘνʔϜϝϯόʔͷϞνϕʔγϣϯ ࠾༻Ͱ͖ͳ͍ طଘϝϯόʔͷ཭୤ͷՄೳੑ ϝϯόʔ཭୤ˍ࠾༻Ͱ͖ͳ͍ͱɺɺɺ ࣄۀܧଓੑʹѱӨڹ 74 ௥ै͠ͳ͍͜ͱʹΑΔෆརӹ

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ඞཁੑΛߟ͑Δ 75 ௥ै͢Δ͜ͱʹΑΔརӹ

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ඞཁੑΛߟ͑Δ ਪ঑͞Ε͍ͯΔ࣮૷Λ࠾༻Ͱ͖Δ 76 ௥ै͢Δ͜ͱʹΑΔརӹ

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ඞཁੑΛߟ͑Δ ਪ঑͞Ε͍ͯΔ࣮૷Λ࠾༻Ͱ͖Δ ೝ஌Ͱ͖Δ՝୊͸ղܾ͞Ε͍ͯ͘ 77 ௥ै͢Δ͜ͱʹΑΔརӹ

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ඞཁੑΛߟ͑Δ ਪ঑͞Ε͍ͯΔ࣮૷Λ࠾༻Ͱ͖Δ ೝ஌Ͱ͖Δ՝୊͸ղܾ͞Ε͍ͯ͘ ݱࡏ·ͨ͸ະདྷͷϝϯόʔͷϞνϕʔγϣϯ͸อͨΕΔ 78 ௥ै͢Δ͜ͱʹΑΔརӹ

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௥ै͠Α͏ 79

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௥ै͠Α͏ 80

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શͯ௥ै͢΂͖ͳͷ͔ʁ 81

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શͯ௥ै͢΂͖ͳͷ͔ʁ શͯΛ௥ै͢Δඞཁ͸ͳ͍ 82

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શͯ௥ै͢΂͖ͳͷ͔ʁ શͯΛ௥ै͢Δඞཁ͸ͳ͍ ϓϩμΫτʹΑΔ 83

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શͯ௥ै͢΂͖ͳͷ͔ʁ શͯΛ௥ै͢Δඞཁ͸ͳ͍ ϓϩμΫτʹΑΔ ՝୊͕֘౰͠ͳ͍ͱ͖ 84

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શͯ௥ै͢΂͖ͳͷ͔ʁ શͯΛ௥ै͢Δඞཁ͸ͳ͍ ϓϩμΫτʹΑΔ ՝୊͕֘౰͠ͳ͍ͱ͖ ՝୊͕ແࢹͰ͖Δ΄Ͳখ͍࣌͞ 85

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શͯ௥ै͢΂͖ͳͷ͔ʁ શͯΛ௥ै͢Δඞཁ͸ͳ͍ ϓϩμΫτʹΑΔ ՝୊͕֘౰͠ͳ͍ͱ͖ ՝୊͕ແࢹͰ͖Δ΄Ͳখ͍࣌͞ ༏ઌॱҐ͕௿͍ͱ͖ 86

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શͯ௥ै͢΂͖ͳͷ͔ʁ 87 ௥ै͠ͳ͍ྫ

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શͯ௥ै͢΂͖ͳͷ͔ʁ Modularization 88 ௥ै͠ͳ͍ྫ

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શͯ௥ै͢΂͖ͳͷ͔ʁ Modularization ػೳ͕ͻͱ͔ͭ͠ͳ͍Α͏ͳͱͯ΋γϯϓϧͳΞϓϦ Layered Architectureͷ࿩Ͱ͸ͳ͘ɺίϯςΩετ෼ׂͷ࿩ 89 ௥ै͠ͳ͍ྫ

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શͯ௥ै͢΂͖ͳͷ͔ʁ Room 90 ௥ै͠ͳ͍ྫ

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શͯ௥ै͢΂͖ͳͷ͔ʁ Room ͦ΋ͦ΋ϩʔΧϧDB͕ඞཁ͔ 91 ௥ै͠ͳ͍ྫ

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શͯ௥ै͢΂͖ͳͷ͔ʁ Room ͦ΋ͦ΋ϩʔΧϧDB͕ඞཁ͔ ϑΝΠϧอଘ SharedPreferences 92 ௥ै͠ͳ͍ྫ

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શͯ௥ै͢΂͖ͳͷ͔ʁ Room ͦ΋ͦ΋ϩʔΧϧDB͕ඞཁ͔ ϑΝΠϧอଘ SharedPreferences ௥ैͨ݁͠Ռɺmigration࣌ʹ࡞ۀྔ૿େͷݒ೦ 93 ௥ै͠ͳ͍ྫ

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ͲΕʹ௥ै͢Δ͔ 94

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ͲΕʹ௥ै͢Δ͔ ՝୊ղܾͷखஈͱͯ͠࠾༻͢Δ 95

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ͲΕʹ௥ै͢Δ͔ ՝୊ղܾͷखஈͱͯ͠࠾༻͢Δ ՝୊ೝࣝͷҰக͕ෆՄܽ 96

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ͲΕʹ௥ै͢Δ͔ ՝୊ղܾͷखஈͱͯ͠࠾༻͢Δ ՝୊ೝࣝͷҰக͕ෆՄܽ νʔϜ಺Ͱͷ߹ҙ 97

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ͲΕʹ௥ै͢Δ͔ ՝୊ղܾͷखஈͱͯ͠࠾༻͢Δ ՝୊ೝࣝͷҰக͕ෆՄܽ νʔϜ಺Ͱͷ߹ҙ ΧʔΰɾΧϧτɾϓϩάϥϛϯά͸΍ΊΑ͏ 98

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ͲΕʹ௥ै͢Δ͔ 99 ΧʔΰɾΧϧτɾϓϩάϥϛϯάʁ

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ͲΕʹ௥ै͢Δ͔ ࣮ࡍʹඞཁͰ͸ͳ͍΋ͷΛϓϩάϥϛϯά͢Δ͜ͱ 100 ΧʔΰɾΧϧτɾϓϩάϥϛϯάʁ

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ͲΕʹ௥ै͢Δ͔ ࣮ࡍʹඞཁͰ͸ͳ͍΋ͷΛϓϩάϥϛϯά͢Δ͜ͱ ෺ࣄΛཧղ͍ͯ͠ͳ͍৔߹ʹى͜Γ͕ͪ ໨త खஈ 101 ΧʔΰɾΧϧτɾϓϩάϥϛϯάʁ

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ͲΕʹ௥ै͢Δ͔ ࣮ࡍʹ͸ඞཁͳ΋ͷͰ͸ͳ͍΋ͷΛϓϩάϥϛϯά͢Δ͜ͱ ෺ࣄΛཧղ͍ͯ͠ͳ͍৔߹ʹى͜Γ͕ͪ ໨త खஈ ΍ΊΑ͏ 102 ΧʔΰɾΧϧτɾϓϩάϥϛϯάʁ

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௥ै͢Δྫ 103

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ͲΕʹ௥ै͢Δ͔ 104 Architecture

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ͲΕʹ௥ै͢Δ͔ ઃܭͱݴ͑ΔΑ͏ͳ΋ͷ͕ͳ͘ɺUIૢ࡞΍ϩδοΫ͕ͻͱ·ͱ·Γʹࠞࡏ 105 Architecture

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ͲΕʹ௥ै͢Δ͔ ઃܭͱݴ͑ΔΑ͏ͳ΋ͷ͕ͳ͘ɺUIૢ࡞΍ϩδοΫ͕ͻͱ·ͱ·Γʹࠞࡏ SRPݪଇɺDRYݪଇͷҧ൓ มߋ࣌ͷӨڹൣғ͕޿͍ 106 Architecture

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ͲΕʹ௥ै͢Δ͔ ઃܭͱݴ͑ΔΑ͏ͳ΋ͷ͕ͳ͘ɺUIૢ࡞΍ϩδοΫ͕ͻͱ·ͱ·Γʹࠞࡏ SRPݪଇɺDRYݪଇͷҧ൓ มߋ࣌ͷӨڹൣғ͕޿͍ ࠓޙ΋֘౰ϑΝΠϧͷมߋՄೳੑ͕ߴ͍ 107 Architecture

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ͲΕʹ௥ै͢Δ͔ 108 Modularization

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ͲΕʹ௥ै͢Δ͔ ಉҰϞδϡʔϧ಺Ͱෳ਺ίϯςΩετ͕ࠞࡏ͢Δ 109 Modularization

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ͲΕʹ௥ै͢Δ͔ ಉҰϞδϡʔϧ಺Ͱෳ਺ίϯςΩετ͕ࠞࡏ͢Δ SRPݪଇҧ൓ 110 Modularization

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ͲΕʹ௥ै͢Δ͔ ಉҰϞδϡʔϧ಺Ͱෳ਺ίϯςΩετ͕ࠞࡏ͢Δ SRPݪଇҧ൓ υϝΠϯ෼ׂ 111 Modularization

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ͲΕʹ௥ै͢Δ͔ ಉҰϞδϡʔϧ಺Ͱෳ਺ίϯςΩετ͕ࠞࡏ͢Δ SRPݪଇҧ൓ υϝΠϯ෼ׂ ϨΠϠʔ෼ׂ 112 Modularization

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ͲΕʹ௥ै͢Δ͔ ಉҰϞδϡʔϧ಺Ͱෳ਺ίϯςΩετ͕ࠞࡏ͢Δ SRPݪଇҧ൓ υϝΠϯ෼ׂ ϨΠϠʔ෼ׂ ґଘํ޲ͷڧ੍ DIPݪଇ९क 113 Modularization

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ͲΕʹ௥ै͢Δ͔ 114 JetpackCompose

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ͲΕʹ௥ै͢Δ͔ ίϯϙʔωϯτ୯ҐͰUI͕ଘࡏͤͣ࠶ར༻ੑ͕௿͍ Atomic Design 115 JetpackCompose

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ͲΕʹ௥ै͢Δ͔ ίϯϙʔωϯτ୯ҐͰUI͕ଘࡏͤͣ࠶ར༻ੑ͕௿͍ Atomic Design σʔλͱUIͷ݁ͼ͖͕ͭ෼͔ΓͮΒ͍ 116 JetpackCompose

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௥ै͢ΔλΠϛϯά 117

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௥ै͢ΔλΠϛϯά ௥ै͢΂͖͕ͩɺࠓ͙࣮͢ߦʹҠͤͳ͍͜ͱ΋͋Δ 118

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௥ै͢ΔλΠϛϯά ௥ै͢΂͖͕ͩɺࠓ͙࣮͢ߦʹҠͤͳ͍͜ͱ΋͋Δ ίετɾϦεΫɾϦλʔϯͷόϥϯε ࡞ۀྔ Өڹൣғ ະདྷతͳίετͱϦεΫͷ௿ݮ 119

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௥ै͢ΔλΠϛϯά 120 Coroutine

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௥ै͢ΔλΠϛϯά RxJava͔Βͷஔ͖׵͑ 121 Coroutine

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௥ै͢ΔλΠϛϯά RxJava͔Βͷஔ͖׵͑ ࣮ࢪͷࡍ͸Ϟδϡʔϧ୯Ґ૝ఆ શମͷ૯ίετͱ௥ैͨ݁͠ՌͷϦλʔϯΛൺֱ 122 Coroutine

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ͪͳΈʹ 123

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Ϟμϯ࠾༻ͷੋඇ 124

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Ϟμϯ࠾༻ͷੋඇ ʮϞμϯٕज़Λ࠾༻ͯ͠͸ବ໨ʯͱ͍͏Θ͚Ͱ͸ͳ͍ Өڹ౓ͷখ͍͞Ϟδϡʔϧ΍ίʔυͰ࠾༻͢Δͷ͸ΞϦ 125

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Agenda 126 01 σϑΝΫτελϯμʔυͱ͸ 02 ͲͷΑ͏ʹ൑அ͢Δ͔ 03 ௥ै͍ͯͨ͘͠Ίʹ 04 ࣮ମݧɺtips

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ฐࣾͷ๊͍͑ͯͨ՝୊ Կ΋͔΋Fat ίϯςΩετࠞࡏ ϨΠϠʔͰ෼͚Δ΂͖ϩδοΫࠞࡏ σʔλϑϩʔઓུ͕ᐆດ ςελϏϦςΟ͕௿͍ 127

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ߟ͑ΒΕͨखஈ Layered Architecture MVVM Modularization 128

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129 ๊͍͑ͯͨ՝୊ Կ΋͔΋Fat ίϯςΩετ ෼͚Δ΂͖੹຿ σʔλϑϩʔઓུ͕ᐆດ ςελϏϦςΟ͕௿͍ ߟ͑ΒΕͨखஈ ✓ Layered Architecture ✓ MVVM ✓ Modularization

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130 ๊͍͑ͯͨ՝୊ Կ΋͔΋Fat ίϯςΩετ ෼͚Δ΂͖੹຿ σʔλϑϩʔઓུ͕ᐆດ ςελϏϦςΟ͕௿͍ ߟ͑ΒΕͨखஈ ✓ Layered Architecture ✓ MVVM ✓ Modularization

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131 ๊͍͑ͯͨ՝୊ Կ΋͔΋Fat ίϯςΩετ ෼͚Δ΂͖੹຿ σʔλϑϩʔઓུ͕ᐆດ ςελϏϦςΟ͕௿͍ ߟ͑ΒΕͨखஈ ✓ Layered Architecture ✓ MVVM ✓ Modularization

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132 ๊͍͑ͯͨ՝୊ Կ΋͔΋Fat ίϯςΩετ ෼͚Δ΂͖੹຿ σʔλϑϩʔઓུ͕ᐆດ ςελϏϦςΟ͕௿͍ ߟ͑ΒΕͨखஈ ✓ Layered Architecture ✓ MVVM ✓ Modularization

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ؾΛ͚ͭΔ΂͖͜ͱ খ͍͞ͱ͜Ζ͔Β΍Δ Өڹ౓ ϦεΫ ՝୊͸ಛఆͷखஈͷΈͰ͸ղܾ͠ͳ͍ खஈA͚ͩͰղܾ͠ͳ͍ɺɺɺ खஈAͱखஈBͷ྆ํͰΑ͏΍͘ղܾ 133

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134 खॱ1 υϝΠϯϞσϦϯά ঎඼ ͓ؾʹೖΓ ஫จཤྺ Ϣʔβʔ

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135 खॱ1 υϝΠϯϞσϦϯά ӨڹൣғΛߟྀͨ͠ର৅Λܾఆ ίετ ϦεΫ ঎඼ ͓ؾʹೖΓ ஫จཤྺ Ϣʔβʔ

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136 खॱ1 υϝΠϯϞσϦϯά ӨڹൣғΛߟྀͨ͠ର৅Λܾఆ ίετ ϦεΫ ʮྑ͍ίʔυʯͷݴޠԽ SOLIDݪଇͳͲ ঎඼ ͓ؾʹೖΓ ஫จཤྺ Ϣʔβʔ

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137 खॱ2 υϝΠϯϩδοΫͷ੾Γग़͠

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138 खॱ2 υϝΠϯϩδοΫͷ੾Γग़͠ Layered Architecture UI͸ͦͷ··

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139 खॱ2 υϝΠϯϩδοΫͷ੾Γग़͠ Layered Architecture UI͸ͦͷ·· ॱ൪ DomainɺInfraɺUseCaseɺ UI(Host Service)

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140 खॱ2 υϝΠϯϩδοΫͷ੾Γग़͠ Layered Architecture UI͸ͦͷ·· ॱ൪ DomainɺInfraɺUseCaseɺ UI(Host Service)

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141 खॱ3 UI૚ͷϦϑΝΫλϦϯά

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142 खॱ3 UI૚ͷϦϑΝΫλϦϯά MVVM JetpackCompose

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143 खॱ3 UI૚ͷϦϑΝΫλϦϯά MVVM JetpackCompose

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ͦͷଞtips Google Codelabs࠷ڧ େ·͔ͳ֓ཁͱ΍ΓํΛֶͿ طଘϓϩδΣΫτΛϛχϚϜʹ࡟ͬͨαϯϓϧϓϩδΣΫτ͕͋Δͱศར UI͸ൺֱత࠷ޙʹɺJetpackCompose͸ཁૉٴͼϩδοΫ͕࠷খͳ΋ͷ͔Β σβΠϯΨΠυϥΠϯࡦఆ͢Δͱ໾ཱͭ 144

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·ͱΊ σϑΝΫτελϯμʔυ͸՝୊Λղܾ͢ΔखஈͰ͋Δ νʔϜ๊͕͑Δ՝୊Λ໌֬ʹ͢Δ खஈΛ஌Βͳ͍ͱ՝୊ʹؾ͚ͮͳ͍͜ͱ͕͋ΔͷͰΩϟονΞοϓ͸େࣄ ΧʔΰɾΧϧτɾϓϩάϥϛϯά͸΍ΊΑ͏ 145

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝ ·ͨ͠ʂ Taikai Masuda / tk-masuda Oisix ra daichi inc. Android Developer 146 ΧδϡΞϧ໘ஊੋඇʹʂ