Modern REST Communicate for Android

Transcript

1. 1.

   Modern REST Communicate for Android 2016.5.20 @kobaken42

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   Agenda • Keyword • ΍Βͳ͍͜ͱ • RESTʹ͍ͭͯ • ࢖༻ϥΠϒϥϦ঺հ •

   αϯϓϧΞϓϦͷ࣮૷(ϨϏϡϫʔ͋Γ) • Keyword(͓͞Β͍)
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   Keyword • REST(RESTful) • (ؔ਺ܕ)ϦΞΫςΟϒϓϩάϥϛϯά(FRP) • ReactiveX(ϦΞΫςΟϒΤΫεςϯγϣϯ) • Parse(ύʔε)

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   ΍Βͳ͍͜ͱ • Androidʹؔ͢Δઆ໌(Activity, Fragment, Lifecycle etc…) • RESTɺFRPʹؔ͢Δৄࡉͳઆ໌ • ϨΨγʔͳ࣮૷ͱͷൺֱ

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   ʊਓਓਓਓʊ ʼ REST ʻ ʉY^Y^Y^Yʉ

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   Webͷ ΞʔΩςΫνϟελΠϧͷҰͭ

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   ύϥϝʔλΛࢦఆͯ͠ ಛఆURLʹHTTP(s)ͰΞΫηε XML or jsonͰ݁Ռ͕ฦ٫͞ΕΔ

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   ύϥϝʔλ(Input)͕ಉҰͳΒ ৗʹಉ݁͡Ռ(Output)͕ظ଴Ͱ͖Δ (γεςϜͷঢ়ଶ΍ηογϣϯʹґଘ͠ͳ͍)

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   (ͪΐͬͱཚ๫͚ͩͲ) ҰߦͰݴ͏ͱ

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    Ϧιʔεॏࢹઃܭ

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    RESTful item_url -> items/:id new_item_url -> items/new edit_item_url -> items/:id/edit

    items_url -> items
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    Not RESTful

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    ίϨͰΘ͔Βͳ͍ਓ͸ ϫγϫγMAX΍Ͱʙʂʂ ͦΜͳͷ͋Μ·Γʹ͜ʙʂʂ

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    ຊ୊΁

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    ϦΞΫςΟϒͳ REST௨৴Λ࣮ݱͨ͠ αϯϓϧΞϓϦΛ࡞੒͍͖ͯ͠·͢

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    ༏लͳϨϏϡϫʔͷྗΛ आΓͳ͕Β࣮૷͍͖ͯ͠·͢Αʂ

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    ࢖༻ϥΠϒϥϦͷ঺հ

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    ࢖༻ϥΠϒϥϦ(Plugin) • Retrofit • RxAndroid • Retrolambda • Lombok •

    butterknife(DataBindingʹஔ͖׵͑·ͨ͠)
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    Retrofit v2.0.2 • AndroidͱJavaͷͨΊͷܕ҆શͳ HTTPΫϥΠΞϯτ • ಺෦ͰOkhttpΛ࢖༻ • AsyncLoaderͱ͸΋͏͓͞Β͹ •

    jsonύʔεͱ͔ॾʑ΍ͬͯ͘ΕΔ • Apache HTTP ClientʁūŬťƀŘŶƂŜƃūŘ!!
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    RxAndroid v1.2.0 • RxJavaΛ಺แ͍ͯ͠ΔAndroid޲͚ ReactiveX • ϦΞΫςΟϒϓϩάϥϛϯάग़དྷΔ • ඇಉظॲཧ͕؆୯ʹॻ͚Δ (AsyncTaskͳΜͯͳ͔ͬͨ)

    • ڞ௨ͷΠϯλʔϑΣʔεͱͯ͠׆༻ • View͔ΒͷΠϕϯτΛड͚औΔ • ίʔϧόοΫͷҰݩ؅ཧ etc…
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    Retrolambda • AndroidͰϥϜμ͕ࣜॻ͚ΔΑ͏ʹ ͳΔPlugin • Method Referenceʹ΋ରԠ • RxAndroid, Stream

    APIͱͷซ༻ར ༻Ͱ΄΅Java8؀ڥʹʂ
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    Lombok v1.16.8 • JavaͰΑ͋͘ΔϘΠϥʔϓϨʔτ ίʔυΛγϯϓϧʹͯ͘͠ΕΔ • getter, setterͷهड़ෆཁʹ • nullνΣοΫΛࣗಈͰ΍ͬͯ͘ΕΔ

    • MITϥΠηϯε
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    ϥΠϒϥϦ঺հ͸͜͜·Ͱ

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    ΍Δ͜ͱ

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    ΍Δ͜ͱ • ࢖༻ϥΠϒϥϦΛGradleͰએݴ • REST௨৴ͷͨΊͷAPIΠϯλʔϑΣʔε࡞੒ • Ϩεϙϯε༻ͷΦϒδΣΫτΛ࡞੒ • ϦΞΫςΟϒϓϩάϥϛϯάͰREST௨৴ʂ

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    Ͱ͸ૣ଎

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    gradleʹهड़ͯ͘͠Ͱ

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    build.gradle(app௚Լ)

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    None
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    None
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    ࣍

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    WebAPIͷInterface ࡞ΔͰ

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    ࠓճ͸ొ࿥ෆཁͳ͓खܰAPIΛ ར༻͍ͨ͠Μ΍ʂ

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    ࢖༻API • WeatherHacks

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    WeatherHacksApi.java

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    None
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    None
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    ResponseObject(Entity) ࡞ΔͰ

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    ResponseObject.java

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    None
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    None
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    Լ४උऴΘΓ

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    ͦΕ͡Όɺຊ൪ߦ͘΍Ͱ

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    ͜Ε͔Β΍Δ͜ͱ

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    ࡾߦͰ

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    Activity(Fragment)ʹ RetrofitΦϒδΣΫτΛੜ੒ͯ͠ subscribeʂ

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    MainActivity.java

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    MainActivity.java

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    MainActivity.java

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    ͜Ε͚ͩʂ

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    ͱ

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    ࢥΘͤͯ

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    AndroidManifest.xmlʹ Internet௨৴ͷͨΊͷ Permissionهड़͕ඞཁͦ͏ɾɾɾ

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    None
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    AndroidManifest.xml

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    AndroidManifest.xml

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    None
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    Keyword(͓͞Β͍) • REST(RESTful) • (ؔ਺ܕ)ϦΞΫςΟϒϓϩάϥϛϯά(FRP) • ReactiveX(ϦΞΫςΟϒΤΫεςϯγϣϯ) • Parse(ύʔε) •

    ঁਆͷΜͨΜ
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    ΈΜͳ΋ϦΞΫςΟϒʹ REST௨৴͠Αͬˑ

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    None
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    https://github.com/kobaken0029/RestSample