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KotlinでRetrofitを使いやすくするちょっとした工夫
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Shinya Kumagai
February 26, 2016
Programming
2
510
KotlinでRetrofitを使いやすくするちょっとした工夫
2016/02/26 Kotlin Birthday Party #jkug
Shinya Kumagai
February 26, 2016
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Transcript
KotlinͰRetrofitΛ ͍͘͢͢Δ ͪΐͬͱͨ͠ 2015/02/26 Shinya Kumagai(@droibit)
About Me • Shinya Kumagai (۽୩ ৻) 25ࡀ • Twitter,
GitHub - @droibit • λΦιϑτΣΞגࣜձࣾ
Happy Birthday Kotlin!! (ɾ8ɾ)
֓ཁ • connpass API ༻ͷRetrofit ServiceΛର - JavaͰఆٛ͞ΕͨService - KotlinͰServiceΛఆٛ
KotlinͰ͏ͱ͖ͷͪΐͬͱͨ͠ IUUQTRVBSFHJUIVCJPSFUSPpU
Connpass API • ݕࡧΫΤϦ - keyword … Ωʔϫʔυ - order
… ݁Ռͷදࣔॱ (1:ߋ৽ॱ, 2…) - ymd … Πϕϯτ։࠵ (yyyymmdd) • ϨεϙϯεJSON ?keyword=kotlin&order=1&ymd=20150226 IUUQDPOOQBTTDPNBCPVUBQJ
JavaͰఆٛ͞ΕͨService public interface ConnpassService { // ※ @Get, @Query লུ
Response searchEvent(@NonNull String keyword, @Nullable Integer order, @Nullable String ymd); } // શΫΤϦΛࢦఆ service.searchEvent(“kotlin”, 1, "20160226"); // ΩʔϫʔυͷΈͷ߹ service.searchEvent("kotlin", null, null);
// ֦ுؔΛఆٛ + σϑΥϧτҾ fun ConnpassService.searchEventExt( keyword: String, order: Order?
= null, ymd: String? = null ) = searchEvent(keyword, order?.index, ymd) // ݕࡧ݁Ռͷදࣔॱͷྻڍମ enum class Order(val index: Int) { UPDATE(1), EVENT(2), NEW(3); override fun toString() = "$index" } // ΩʔϫʔυҎ֎ඞཁͳΫΤϦͷΈ service.searchEventExt("kotlin", order = Order.UPDATE) KotlinͰվળ
KotlinͰServiceΛఆٛ interface ConnpassService { // ※ @Get,@Query লུ fun searchEvent(keyword:
String, order: Order? = null, ymd: String? = null): Response } // ΩʔϫʔυҎ֎ඞཁͳΫΤϦͷΈ service.searchEvent(“kotlin”, order = Order.UPDATE)
// ༻్ʹ߹Θ֦ͤͨுؔΛఆٛ fun ConnpassService.searchEvent( keyword: String, order: Order? = null,
ymd: Date? = null ) = searchEvent(keyword, order, format(ymd)) // DateΛ yyyymmdd ϑΥʔϚοτͷStringʹม fun format(date: Date?): String? = … // ։࠵ʹDateΦϒδΣΫτΛࢦఆ service.searchEvent(“kotlin", ymd = dateFromTimesSquare) վળྫ
·ͱΊ • ൚༻తͳΠϯλʔϑΣʔεʹͳΔ͍͋ɺ σϑΥϧτҾɺ֦ுؔͰγϯϓϧͳ Service fabricͷΑ͏ʹͳΒͳ͍Α͏ʹؾΛ͚ͭ·͠ΐ͏
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠