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Play Billing Library In-tamachi Billing Night, 2019/04/10 20:00-20:10

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whoami twitter:@ymnd, github:@ymnder Application Engineer Android Android [ -02] Nikkei Development Book VOL 2 [ -08] hifumi https://riconken.bitbucket.io/hifumi/ 2

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Otemachi.swift#3 iOS App by ikai https://nikkei.connpass.com/event/123343/ 3

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Today s menu 4

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: Google Play Billing Library Google Play Store In-app Billing API wrap 6

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: startConnection isReady querySkuDetailsAsync 7

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: startConnection querySkuDetailsAsync launchBilling ow PurchasesUpdatedListener 8

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: 9 SFNPUF MPDBM SFQPTJUPSZ VTFDBTF QSFTFOUFS WJFX

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: Remote Local Repository interface RxJava Single Completable Remote BillingClient DroidKaigi 2019 10

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Repository 11 class PlayBillingRepositoryImpl @Inject constructor( private val remote: RemotePlayBilling ) : PlayBillingRepository { override fun startSubscription(activity: Activity, skuId: String): Observable { return remote.connect() .flatMapObservable { remote.querySkuDetailsAsync(skuId).flatMapObservable { response -> remote.launchBillingFlow(activity, response.skuDetailsList.first()) .flatMapObservable { remote.observePurchasesUpdated() .flatMap { if (it.result != BillingClient.BillingResponse.OK) { return@flatMap Observable.error(…) } return@flatMap Observable.just(it) } //… } } } } }

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Repository 12 class PlayBillingRepositoryImpl @Inject constructor( private val remote: RemotePlayBilling ) : PlayBillingRepository { override fun startSubscription(activity: Activity, skuId: String): Observable { return remote.connect() .flatMapObservable { remote.querySkuDetailsAsync(skuId).flatMapObservable { response -> remote.launchBillingFlow(activity, response.skuDetailsList.first()) .flatMapObservable { remote.observePurchasesUpdated() .flatMap { if (it.result != BillingClient.BillingResponse.OK) { return@flatMap Observable.error(…) } return@flatMap Observable.just(it) } //… } } } } }

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13 billing.startSubscription(this@BillingActivity, skuId) .subscribe({ //ߪೖॲཧ͕੒ޭͨ͠ }, { //ߪೖॲཧ͕ࣦഊͨ͠ Toast.makeText(this@BillingActivity, it.message, Toast.LENGTH_SHORT).show() })

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:BillingActivity Activity 14

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BillingClient BillingClient 17

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BillingClient API queryPurchaseHistoryAsync 20

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queryPurchaseHistoryAsync ID 1 21

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BillingClient API Purchases.subscriptions API 23

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Google Play Billing Library Purchases.subscriptions API Real-time developer noti cations 24

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Nikkei Development Book VOL 2 Android / iOS ✕ / [ -02] https://techbookfest.org/event/tbf06/circle/40320001 25

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Subscription :)

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https://speakerdeck.com/ymnder/xiang-jie-ding-qi-gou-ru What's new in Google Play Billing v1.0 -> v1.1 https://speakerdeck.com/ymnder/whats-new-in-google-play-billing What's new in Google Play Billing v1.2 v1.1 -> v1.2 https://speakerdeck.com/ymnder/whats-new-in-google-play-billing-v1-dot-2 27