{"id":137990,"date":"2021-03-24T00:00:00","date_gmt":"2021-03-24T00:00:00","guid":{"rendered":"https:\/\/adapty.io\/jp-android-in-app-purchases-google-play-billing-library-part-2\/"},"modified":"2025-06-26T13:05:10","modified_gmt":"2025-06-26T13:05:10","slug":"android-in-app-purchases-google-play-billing-library-part-2","status":"publish","type":"post","link":"https:\/\/adapty.io\/ja\/blog\/android-in-app-purchases-google-play-billing-library-part-2\/","title":{"rendered":"Android\u30a2\u30d7\u30ea\u5185\u8cfc\u5165\u3001\u30d1\u30fc\u30c8 2: Google Play Billing Library\u3092\u4f7f\u7528\u3057\u305f\u8cfc\u5165\u306e\u51e6\u7406"},"content":{"rendered":"\n

\u524d\u56de\u306e\u8a18\u4e8b\u3067\u306f\u3001Billing Library\u3068\u9023\u643a\u3059\u308b\u30e9\u30c3\u30d1\u30fc\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n

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import<\/span> <\/span>android.content.Context<\/span><\/span>\nimport<\/span> <\/span>com.android.billingclient.api.*<\/span><\/span>\nclass<\/span> <\/span>BillingClientWrapper<\/span>(<\/span>context<\/span>:<\/span> <\/span>Context<\/span>)<\/span> <\/span>:<\/span> <\/span>PurchasesUpdatedListener<\/span> <\/span>{<\/span><\/span>\n   <\/span>interface<\/span> <\/span>OnQueryProductsListener<\/span> <\/span>{<\/span><\/span>\n       <\/span>fun<\/span> <\/span>onSuccess<\/span>(<\/span>products<\/span>:<\/span> <\/span>List<\/span><<\/span>SkuDetails<\/span>><\/span>)<\/span><\/span>\n       <\/span>fun<\/span> <\/span>onFailure<\/span>(<\/span>error<\/span>:<\/span> <\/span>Error<\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n   <\/span>class<\/span> <\/span>Error<\/span>(<\/span>val<\/span> <\/span>responseCode<\/span>:<\/span> <\/span>Int<\/span>,<\/span> <\/span>val<\/span> <\/span>debugMessage<\/span>:<\/span> <\/span>String<\/span>)<\/span><\/span>\n   <\/span>private<\/span> <\/span>val<\/span> billingClient <\/span>=<\/span> <\/span>BillingClient<\/span><\/span>\n       <\/span>.<\/span>newBuilder<\/span>(<\/span>context<\/span>)<\/span><\/span>\n       <\/span>.<\/span>enablePendingPurchases<\/span>()<\/span><\/span>\n       <\/span>.<\/span>setListener<\/span>(<\/span>this<\/span>)<\/span><\/span>\n       <\/span>.<\/span>build<\/span>()<\/span><\/span>\n   <\/span>fun<\/span> <\/span>queryProducts<\/span>(<\/span>listener<\/span>:<\/span> <\/span>OnQueryProductsListener<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>val<\/span> skusList <\/span>=<\/span> <\/span>listOf<\/span>(<\/span>"<\/span>premium_sub_month<\/span>"<\/span>,<\/span> <\/span>"<\/span>premium_sub_year<\/span>"<\/span>,<\/span> <\/span>"<\/span>some_inapp<\/span>"<\/span>)<\/span><\/span>\n       queryProductsForType<\/span>(<\/span><\/span>\n           skusList<\/span>,<\/span><\/span>\n           <\/span>BillingClient<\/span>.<\/span>SkuType<\/span>.<\/span>SUBS<\/span><\/span>\n       <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> skuDetailsList <\/span>-><\/span><\/span>\n           <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>==<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n               <\/span>val<\/span> products <\/span>=<\/span> skuDetailsList <\/span>?:<\/span> <\/span>mutableListOf<\/span>()<\/span><\/span>\n               queryProductsForType<\/span>(<\/span><\/span>\n                   skusList<\/span>,<\/span><\/span>\n                   <\/span>BillingClient<\/span>.<\/span>SkuType<\/span>.<\/span>INAPP<\/span><\/span>\n               <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> skuDetailsList <\/span>-><\/span><\/span>\n                   <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>==<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n                       products<\/span>.<\/span>addAll<\/span>(<\/span>skuDetailsList <\/span>?:<\/span> <\/span>listOf<\/span>())<\/span><\/span>\n                       listener<\/span>.<\/span>onSuccess<\/span>(<\/span>products<\/span>)<\/span><\/span>\n                   <\/span>}<\/span> <\/span>else<\/span> <\/span>{<\/span><\/span>\n                       listener<\/span>.<\/span>onFailure<\/span>(<\/span><\/span>\n                           <\/span>Error<\/span>(<\/span>billingResult<\/span>.<\/span>responseCode<\/span>,<\/span> billingResult<\/span>.<\/span>debugMessage<\/span>)<\/span><\/span>\n                       <\/span>)<\/span><\/span>\n                   <\/span>}<\/span><\/span>\n               <\/span>}<\/span><\/span>\n           <\/span>}<\/span> <\/span>else<\/span> <\/span>{<\/span><\/span>\n               listener<\/span>.<\/span>onFailure<\/span>(<\/span><\/span>\n                   <\/span>Error<\/span>(<\/span>billingResult<\/span>.<\/span>responseCode<\/span>,<\/span> billingResult<\/span>.<\/span>debugMessage<\/span>)<\/span><\/span>\n               <\/span>)<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>queryProductsForType<\/span>(<\/span><\/span>\n       <\/span>skusList<\/span>:<\/span> <\/span>List<\/span><<\/span>String<\/span>><\/span>,<\/span><\/span>\n       <\/span>@BillingClient.SkuType<\/span> <\/span>type<\/span>:<\/span> <\/span>String<\/span>,<\/span><\/span>\n       <\/span>listener<\/span>:<\/span> <\/span>SkuDetailsResponseListener<\/span><\/span>\n   <\/span>)<\/span> <\/span>{<\/span><\/span>\n       onConnected <\/span>{<\/span><\/span>\n           billingClient<\/span>.<\/span>querySkuDetailsAsync<\/span>(<\/span><\/span>\n               <\/span>SkuDetailsParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setSkusList<\/span>(<\/span>skusList<\/span>).<\/span>setType<\/span>(<\/span>type<\/span>).<\/span>build<\/span>(),<\/span><\/span>\n               listener<\/span><\/span>\n           <\/span>)<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>onConnected<\/span>(<\/span>block<\/span>:<\/span> <\/span>()<\/span> <\/span>-><\/span> <\/span>Unit<\/span>)<\/span> <\/span>{<\/span><\/span>\n       billingClient<\/span>.<\/span>startConnection<\/span>(<\/span>object<\/span> <\/span>:<\/span> <\/span>BillingClientStateListener<\/span> {<\/span><\/span>\n           override fun onBillingSetupFinished<\/span>(<\/span>billingResult<\/span>:<\/span> <\/span>BillingResult<\/span>)<\/span> {<\/span><\/span>\n               block<\/span>()<\/span><\/span>\n           }<\/span><\/span>\n           override fun onBillingServiceDisconnected<\/span>()<\/span> {<\/span><\/span>\n               <\/span>\/\/<\/span> <\/span>Try<\/span> to restart the connection on the next request to<\/span><\/span>\n               <\/span>\/\/<\/span> <\/span>Google<\/span> <\/span>Play<\/span> by calling the startConnection<\/span>()<\/span> method<\/span>.<\/span><\/span>\n           }<\/span><\/span>\n       }<\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n   <\/span>override<\/span> <\/span>fun<\/span> <\/span>onPurchasesUpdated<\/span>(<\/span>billingResult<\/span>:<\/span> <\/span>BillingResult<\/span>,<\/span> <\/span>purchaseList<\/span>:<\/span> <\/span>MutableList<\/span><<\/span>Purchase<\/span>><\/span>?<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>\/\/ here come callbacks about new purchases<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8cfc\u5165\u306e\u5b9f\u88c5\u306b\u9032\u307f\u3001\u30af\u30e9\u30b9\u3092\u6539\u5584\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
\u5b9a\u671f\u8cfc\u5165\u753b\u9762\u306e\u30c7\u30b6\u30a4\u30f3<\/h2>\n\n\n\n
\u30a2\u30d7\u30ea\u5185\u8cfc\u5165 (in-app purchase) \u3092\u7279\u5fb4\u3068\u3059\u308b\u30a2\u30d7\u30ea\u306b\u306f\u3001\u30da\u30a4\u30a6\u30a9\u30fc\u30eb (paywall) \u753b\u9762\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u753b\u9762\u306b\u306fGoogle\u30dd\u30ea\u30b7\u30fc<\/a>\u304c\u9069\u7528\u3055\u308c\u3001\u8868\u793a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u6700\u5c0f\u9650\u306e\u8981\u7d20\u3084\u8aac\u660e\u30c6\u30ad\u30b9\u30c8\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002\u6982\u8981\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002\u30da\u30a4\u30a6\u30a9\u30fc\u30eb\u753b\u9762\u3067\u306f\u3001\u5b9a\u671f\u8cfc\u5165 (subscription) \u306e\u6761\u4ef6\u3001\u6599\u91d1\u3001\u671f\u9593\u3092\u660e\u793a\u3057\u3001\u30a2\u30d7\u30ea\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u306b\u5b9a\u671f\u8cfc\u5165\u304c\u5fc5\u8981\u304b\u3069\u3046\u304b\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u6761\u4ef6\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u30e6\u30fc\u30b6\u30fc\u306b\u8ffd\u52a0\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u5f37\u5236\u3059\u308b\u3053\u3068\u3082\u907f\u3051\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n
\u3053\u3053\u3067\u306f\u3001\u7c21\u7565\u5316\u3057\u305f\u30da\u30a4\u30a6\u30a9\u30fc\u30eb\u753b\u9762\u3092\u4f8b\u3068\u3057\u3066\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n
\n
\"android
Android\u30da\u30a4\u30a6\u30a9\u30fc\u30eb\u753b\u9762\u306e\u30b5\u30f3\u30d7\u30eb <\/em><\/figcaption><\/figure><\/div>\n\n\n
\u30da\u30a4\u30a6\u30a9\u30fc\u30eb\u753b\u9762\u306b\u306f\u6b21\u306e\u8981\u7d20\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u25cf \u898b\u51fa\u3057<\/p>\n\n\n\n
\u25cf \u8cfc\u5165\u30d7\u30ed\u30bb\u30b9\u3092\u958b\u59cb\u3059\u308b\u305f\u3081\u306e\u30dc\u30bf\u30f3\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30dc\u30bf\u30f3\u306f\u3001\u30bf\u30a4\u30c8\u30eb\u3084\u73fe\u5730\u901a\u8ca8\u3067\u8868\u8a18\u3055\u308c\u305f\u6599\u91d1\u306a\u3069\u3001\u5b9a\u671f\u8cfc\u5165\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u4e00\u822c\u7684\u306a\u8a73\u7d30\u306b\u3064\u3044\u3066\u6848\u5185\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u25cf \u8aac\u660e\u30c6\u30ad\u30b9\u30c8<\/p>\n\n\n\n
\u25cf \u4ee5\u524d\u306b\u884c\u3063\u305f\u8cfc\u5165\u3092\u5fa9\u5143\u3059\u308b\u305f\u3081\u306e\u30dc\u30bf\u30f3\u3002\u5b9a\u671f\u8cfc\u5165\u307e\u305f\u306f\u6d88\u8cbb\u4e0d\u53ef\u30a2\u30a4\u30c6\u30e0\u306e\u8cfc\u5165\u3092\u7279\u5fb4\u3068\u3059\u308b\u30a2\u30d7\u30ea\u3067\u306f\u5fc5\u9808\u306e\u8981\u7d20\u3067\u3059\u3002<\/p>\n\n\n\n
\u200d<\/p>\n\n\n\n
\u30b3\u30fc\u30c9\u3092\u8abf\u6574\u3057\u3066\u30a2\u30a4\u30c6\u30e0\u306e\u8a73\u7d30\u3092\u8868\u793a\u3059\u308b<\/p>\n\n\n\n
\u3053\u306e\u4f8b\u3067\u306f\u30014\u3064\u306e\u30a2\u30a4\u30c6\u30e0\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u25cf 2\u3064\u306e\u81ea\u52d5\u66f4\u65b0\u578b\u5b9a\u671f\u8cfc\u5165 (\u300cpremium_sub_month\u300d\u3068\u300cpremium_sub_year\u300d)<\/p>\n\n\n\n
\u25cf 2\u56de\u8cfc\u5165\u3067\u304d\u306a\u3044\u30a2\u30a4\u30c6\u30e0\u3001\u3059\u306a\u308f\u3061\u6d88\u8cbb\u4e0d\u53ef\u30a2\u30a4\u30c6\u30e0 (\u300cunlock_feature\u300d)<\/p>\n\n\n\n
\u25cf \u8907\u6570\u56de\u8cfc\u5165\u3067\u304d\u308b\u30a2\u30a4\u30c6\u30e0\u3001\u3059\u306a\u308f\u3061\u6d88\u8cbb\u53ef\u80fd\u30a2\u30a4\u30c6\u30e0\uff08\u300ccoin_pack_large\u300d\uff09<\/p>\n\n\n\n
\u4f8b\u3092\u7c21\u7565\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u524d\u56de\u306e\u8a18\u4e8b\u3067\u4f5c\u6210\u3057\u305fBillingClientWrapper\u3092\u633f\u5165\u3059\u308bActivity\u3068\u3001\u56fa\u5b9a\u6570\u306e\u8cfc\u5165\u30dc\u30bf\u30f3\u3092\u542b\u3080\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
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class<\/span> <\/span>PaywallActivity<\/span>:<\/span> <\/span>BaseActivity<\/span>()<\/span> <\/span>{<\/span><\/span>\n<\/span>\n   <\/span>@Inject<\/span><\/span>\n   lateinit <\/span>var<\/span> billingClientWrapper<\/span>:<\/span> <\/span>BillingClientWrapper<\/span><\/span>\n<\/span>\n   <\/span>override<\/span> <\/span>fun<\/span> <\/span>onCreate<\/span>(<\/span>savedInstanceState<\/span>:<\/span> <\/span>Bundle?<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>super<\/span>.<\/span>onCreate<\/span>(<\/span>savedInstanceState<\/span>)<\/span><\/span>\n       setContentView<\/span>(<\/span>R<\/span>.<\/span>layout<\/span>.<\/span>activity_paywall<\/span>)<\/span><\/span>\n<\/span>\n       displayProducts<\/span>()<\/span> <\/span>\/\/to be declared below<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
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private<\/span> <\/span>val<\/span> purchaseButtonsMap<\/span>:<\/span> <\/span>Map<\/span><<\/span>String<\/span>,<\/span> <\/span>Button<\/span>><\/span> by lazy<\/span>(<\/span>LazyThreadSafetyMode<\/span>.<\/span>NONE<\/span>)<\/span> <\/span>{<\/span><\/span>\n   <\/span>mapOf<\/span>(<\/span><\/span>\n       <\/span>"<\/span>premium_sub_month<\/span>"<\/span> to monthlySubButton<\/span>,<\/span><\/span>\n       <\/span>"<\/span>premium_sub_year<\/span>"<\/span> to yearlySubButton<\/span>,<\/span><\/span>\n       <\/span>"<\/span>coin_pack_large<\/span>"<\/span> to coinPackLargeButton<\/span>,<\/span><\/span>\n       <\/span>"<\/span>unlock_feature<\/span>"<\/span> to unlockFeatureButton<\/span>,<\/span><\/span>\n   <\/span>)<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
UI\u306b\u30a2\u30a4\u30c6\u30e0\u3092\u8868\u793a\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u5ba3\u8a00\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u308c\u306f\u3001\u524d\u56de\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3067\u7d39\u4ecb\u3057\u305f\u30ed\u30b8\u30c3\u30af\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
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private<\/span> <\/span>fun<\/span> <\/span>displayProducts<\/span>()<\/span> <\/span>{<\/span><\/span>\n   billingClientWrapper<\/span>.<\/span>queryProducts<\/span>(<\/span>object<\/span> <\/span>:<\/span> <\/span>BillingClientWrapper<\/span>.<\/span>OnQueryProductsListener<\/span> {<\/span><\/span>\n       override fun onSuccess<\/span>(<\/span>products<\/span>:<\/span> <\/span>List<\/span><<\/span>SkuDetails<\/span>>><\/span>)<\/span> {<\/span><\/span>\n           products<\/span>.<\/span>forEach { product <\/span>-><\/span><\/span>\n               purchaseButtonsMap[product<\/span>.<\/span>sku]<\/span>?.<\/span>apply {<\/span><\/span>\n                   text <\/span>=<\/span> <\/span>"${<\/span>product<\/span>.<\/span>description<\/span>}<\/span> for <\/span>${<\/span>product<\/span>.<\/span>price<\/span>}"<\/span><\/span>\n                   setOnClickListener <\/span>{<\/span><\/span>\n                       billingClientWrapper<\/span>.<\/span>purchase<\/span>(<\/span>this@PaywallActivity,<\/span> <\/span>product<\/span>)<\/span> <\/span>\/\/will be declared below<\/span><\/span>\n                   <\/span>}<\/span><\/span>\n               }<\/span><\/span>\n           }<\/span><\/span>\n       }<\/span><\/span>\n<\/span>\n       <\/span>override<\/span> <\/span>fun<\/span> <\/span>onFailure<\/span>(<\/span>error<\/span>:<\/span> <\/span>BillingClientWrapper<\/span>.<\/span>Error<\/span>)<\/span> <\/span>{<\/span><\/span>\n           <\/span>\/\/handle error<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   }<\/span>)<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u8cfc\u5165\u624b\u7d9a\u304d\u306e\u958b\u59cb<\/h2>\n\n\n\n
\u8cfc\u5165\u3092\u51e6\u7406\u3059\u308b\u306b\u306f\u3001\u30a2\u30d7\u30ea\u306e\u30e1\u30a4\u30f3\u30b9\u30ec\u30c3\u30c9\u304b\u3089launchBillingFlow()<\/a>\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001BillingClientWrapper\u306bpurchase()\u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
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fun<\/span> <\/span>purchase<\/span>(<\/span>activity<\/span>:<\/span> <\/span>Activity<\/span>,<\/span> <\/span>product<\/span>:<\/span> <\/span>SkuDetails<\/span>)<\/span> <\/span>{<\/span><\/span>\n   onConnected <\/span>{<\/span><\/span>\n       activity<\/span>.<\/span>runOnUiThread <\/span>{<\/span><\/span>\n           billingClient<\/span>.<\/span>launchBillingFlow<\/span>(<\/span><\/span>\n               activity<\/span>,<\/span><\/span>\n               <\/span>BillingFlowParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setSkuDetails<\/span>(<\/span>product<\/span>).<\/span>build<\/span>()<\/span><\/span>\n           <\/span>)<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
onPurchasesUpdated()\u30e1\u30bd\u30c3\u30c9\u306f\u3001\u8cfc\u5165\u30c0\u30a4\u30a2\u30ed\u30b0\u306b\u5bfe\u3059\u308b\u30e6\u30fc\u30b6\u30fc\u306e\u64cd\u4f5c\u304b\u3089\u7d50\u679c\u304c\u5f97\u3089\u308c\u308b\u305f\u3073\u306b\u547c\u3073\u51fa\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8cfc\u5165\u304c\u6b63\u5e38\u306b\u5b8c\u4e86\u3057\u305f\u304b\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u9589\u3058\u305f\u305f\u3081\u306b\u8cfc\u5165\u304c\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u305f\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001BillingResponseCode.USER_CANCELED<\/em><\/a>\u30b3\u30fc\u30c9\u304c\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002\u307e\u305f\u306f\u3001\u305d\u306e\u4ed6\u306b\u8003\u3048\u3089\u308c\u308b\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3044\u305a\u308c\u304b\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
\u524d\u56de\u306e\u8a18\u4e8b\u306eOnQueryProductsListener\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3068\u540c\u69d8\u306b\u3001 BillingClientWrapper \u30af\u30e9\u30b9\u3067 OnPurchaseListener \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u5ba3\u8a00\u3057\u307e\u3059\u3002\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u4ecb\u3057\u3066\u3001\u8cfc\u5165 (Purchase<\/a>\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8) \u307e\u305f\u306f\u524d\u56de\u306e\u30ac\u30a4\u30c9<\/a>\u3067\u5ba3\u8a00\u3057\u305f\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u6b21\u306e\u8a18\u4e8b\u3067\u306f\u3001\u8cfc\u5165\u304c\u6210\u529f\u3057\u305f\u5834\u5408\u3067\u3082 Purchase\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304cnull\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u30b1\u30fc\u30b9\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
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interface<\/span> <\/span>OnPurchaseListener<\/span> <\/span>{<\/span><\/span>\n   <\/span>fun<\/span> <\/span>onPurchaseSuccess<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase?<\/span>)<\/span><\/span>\n   <\/span>fun<\/span> <\/span>onPurchaseFailure<\/span>(<\/span>error<\/span>:<\/span> <\/span>Error<\/span>)<\/span><\/span>\n}<\/span><\/span>\n<\/span>\nvar<\/span> onPurchaseListener<\/span>:<\/span> <\/span>OnPurchaseListener?<\/span> <\/span>=<\/span> <\/span>null<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u6b21\u306b\u3001PaywallActivity\u306b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
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class<\/span> <\/span>PaywallActivity<\/span>:<\/span> <\/span>BaseActivity<\/span>(),<\/span> <\/span>BillingClientWrapper<\/span>.<\/span>OnPurchaseListener<\/span> <\/span>{<\/span><\/span>\n<\/span>\n   <\/span>@Inject<\/span><\/span>\n   lateinit <\/span>var<\/span> billingClientWrapper<\/span>:<\/span> <\/span>BillingClientWrapper<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>val<\/span> purchaseButtonsMap<\/span>:<\/span> <\/span>Map<\/span><<\/span>String<\/span>,<\/span> <\/span>Button<\/span>><\/span> by lazy<\/span>(<\/span>LazyThreadSafetyMode<\/span>.<\/span>NONE<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>mapOf<\/span>(<\/span><\/span>\n           <\/span>"<\/span>premium_sub_month<\/span>"<\/span> to monthlySubButton<\/span>,<\/span><\/span>\n           <\/span>"<\/span>premium_sub_year<\/span>"<\/span> to yearlySubButton<\/span>,<\/span><\/span>\n           <\/span>"<\/span>coin_pack_large<\/span>"<\/span> to coinPackLargeButton<\/span>,<\/span><\/span>\n           <\/span>"<\/span>unlock_feature<\/span>"<\/span> to unlockFeatureButton<\/span>,<\/span><\/span>\n       <\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>override<\/span> <\/span>fun<\/span> <\/span>onCreate<\/span>(<\/span>savedInstanceState<\/span>:<\/span> <\/span>Bundle?<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>super<\/span>.<\/span>onCreate<\/span>(<\/span>savedInstanceState<\/span>)<\/span><\/span>\n       setContentView<\/span>(<\/span>R<\/span>.<\/span>layout<\/span>.<\/span>activity_paywall<\/span>)<\/span><\/span>\n<\/span>\n       billingClientWrapper<\/span>.<\/span>onPurchaseListener <\/span>=<\/span> <\/span>this<\/span><\/span>\n<\/span>\n       displayProducts<\/span>()<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>override<\/span> <\/span>fun<\/span> <\/span>onPurchaseSuccess<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase?<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>\/\/handle successful purchase<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>override<\/span> <\/span>fun<\/span> <\/span>onPurchaseFailure<\/span>(<\/span>error<\/span>:<\/span> <\/span>BillingClientWrapper<\/span>.<\/span>Error<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>\/\/handle error or user cancelation<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>displayProducts<\/span>()<\/span> <\/span>{<\/span><\/span>\n       billingClientWrapper<\/span>.<\/span>queryProducts<\/span>(<\/span>object<\/span> <\/span>:<\/span> <\/span>BillingClientWrapper<\/span>.<\/span>OnQueryProductsListener<\/span> {<\/span><\/span>\n           override fun onSuccess<\/span>(<\/span>products<\/span>:<\/span> <\/span>List<\/span><<\/span>SkuDetails<\/span>><\/span>)<\/span> {<\/span><\/span>\n               products<\/span>.<\/span>forEach { product <\/span>-><\/span><\/span>\n                   purchaseButtonsMap[product<\/span>.<\/span>sku]<\/span>?.<\/span>apply {<\/span><\/span>\n                       text <\/span>=<\/span> <\/span>"${<\/span>product<\/span>.<\/span>description<\/span>}<\/span> for <\/span>${<\/span>product<\/span>.<\/span>price<\/span>}"<\/span><\/span>\n                       setOnClickListener <\/span>{<\/span><\/span>\n                           billingClientWrapper<\/span>.<\/span>purchase<\/span>(<\/span>this@PaywallActivity,<\/span> <\/span>product<\/span>)<\/span><\/span>\n                       <\/span>}<\/span><\/span>\n                   }<\/span><\/span>\n               }<\/span><\/span>\n           }<\/span><\/span>\n<\/span>\n           <\/span>override<\/span> <\/span>fun<\/span> <\/span>onFailure<\/span>(<\/span>error<\/span>:<\/span> <\/span>BillingClientWrapper<\/span>.<\/span>Error<\/span>)<\/span> <\/span>{<\/span><\/span>\n               <\/span>\/\/handle error<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       }<\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
onPurchaseUpdated()\u306b\u3044\u304f\u3064\u304b\u306e\u30ed\u30b8\u30c3\u30af\u3092\u8ffd\u52a0\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
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override<\/span> <\/span>fun<\/span> <\/span>onPurchasesUpdated<\/span>(<\/span><\/span>\n   <\/span>billingResult<\/span>:<\/span> <\/span>BillingResult<\/span>,<\/span><\/span>\n   <\/span>purchaseList<\/span>:<\/span> <\/span>MutableList<\/span><<\/span>Purchase<\/span>><\/span>?<\/span><\/span>\n)<\/span> <\/span>{<\/span><\/span>\n   <\/span>when<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span> <\/span>-><\/span> <\/span>{<\/span><\/span>\n           <\/span>if<\/span> <\/span>(<\/span>purchaseList <\/span>==<\/span> <\/span>null<\/span>)<\/span> <\/span>{<\/span><\/span>\n               <\/span>\/\/to be discussed in the next article<\/span><\/span>\n               on<\/span>PurchaseListener?<\/span>.<\/span>onPurchaseSuccess<\/span>(<\/span>null<\/span>)<\/span><\/span>\n               <\/span>return<\/span><\/span>\n           <\/span>}<\/span><\/span>\n<\/span>\n           purchaseList<\/span>.<\/span>forEach<\/span>(::<\/span>processPurchase<\/span>)<\/span> <\/span>\/\/to be declared below<\/span><\/span>\n       <\/span>}<\/span><\/span>\n       <\/span>else<\/span> <\/span>-><\/span> <\/span>{<\/span><\/span>\n           <\/span>\/\/error occured or user canceled<\/span><\/span>\n           on<\/span>PurchaseListener?<\/span>.<\/span>onPurchaseFailure<\/span>(<\/span><\/span>\n               <\/span>BillingClientWrapper<\/span>.<\/span>Error<\/span>(<\/span><\/span>\n                   billingResult<\/span>.<\/span>responseCode<\/span>,<\/span><\/span>\n                   billingResult<\/span>.<\/span>debugMessage<\/span><\/span>\n               <\/span>)<\/span><\/span>\n           <\/span>)<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u25cf \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u306eacknowledgePurchase()<\/a>\u7d4c\u7531<\/p>\n\n\n\n
\u25cf \u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b5\u30a4\u30c9\u306e Product.Purchases.Acknowledge<\/a>\/Purchases.Subscriptions.Acknowledge<\/a>\u7d4c\u7531<\/p>\n\n\n\n
\u6d88\u8cbb\u53ef\u80fd\u30a2\u30a4\u30c6\u30e0\u3092\u53d6\u308a\u6271\u3046\u5834\u5408\u306f\u3001\u4ee3\u308f\u308a\u306bconsumeAsync()<\/a>\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5185\u90e8\u3067\u306e\u8cfc\u5165\u3092\u627f\u8a8d\u3059\u308b\u3068\u540c\u6642\u306b\u3001\u30a2\u30a4\u30c6\u30e0\u306e\u518d\u8cfc\u5165\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001Billing Library\u3067\u306e\u307f\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\u4f55\u3089\u304b\u306e\u7406\u7531\u3067\u3001Google Play Developer API\u3067\u306f\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b5\u30a4\u30c9\u3067\u5b9f\u884c\u3059\u308b\u65b9\u6cd5\u304c\u3042\u308a\u307e\u305b\u3093\u3002Google Play\u3068\u306f\u7570\u306a\u308a\u3001App Store\u3068AppGallery\u306e\u3044\u305a\u308c\u3082\u3001\u305d\u308c\u305e\u308cApp Store Connect\u3068AppGallery Connect\u3092\u4ecb\u3057\u3066\u30a2\u30a4\u30c6\u30e0\u3092\u6d88\u8cbb\u53ef\u80fd\u3068\u3057\u3066\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306eAppGallery\u306e\u30a2\u30a4\u30c6\u30e0\u3082\u660e\u793a\u7684\u306b\u6d88\u8cbb\u3055\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n
\u72ec\u81ea\u306e\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3092\u5b9f\u884c\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u8aac\u660e\u3059\u308b\u305f\u3081\u306b\u3001acknowledge\u3068consumer\u306e\u30e1\u30bd\u30c3\u30c9\u3001\u304a\u3088\u3073processPurchase()\u30e1\u30bd\u30c3\u30c9\u306e2\u3064\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u8a18\u8ff0\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n
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private<\/span> <\/span>fun<\/span> <\/span>acknowledgePurchase<\/span>(<\/span><\/span>\n   <\/span>purchase<\/span>:<\/span> <\/span>Purchase<\/span>,<\/span><\/span>\n   <\/span>callback<\/span>:<\/span> <\/span>AcknowledgePurchaseResponseListener<\/span><\/span>\n)<\/span> <\/span>{<\/span><\/span>\n   onConnected <\/span>{<\/span><\/span>\n       billingClient<\/span>.<\/span>acknowledgePurchase<\/span>(<\/span><\/span>\n           <\/span>AcknowledgePurchaseParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setPurchaseToken<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>)<\/span><\/span>\n               <\/span>.<\/span>build<\/span>(),<\/span><\/span>\n           <\/span>callback<\/span>::<\/span>onAcknowledgePurchaseResponse<\/span><\/span>\n       <\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span>\n<\/span>\nprivate<\/span> <\/span>fun<\/span> <\/span>consumePurchase<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase<\/span>,<\/span> <\/span>callback<\/span>:<\/span> <\/span>ConsumeResponseListener<\/span>)<\/span> <\/span>{<\/span><\/span>\n   onConnected <\/span>{<\/span><\/span>\n       billingClient<\/span>.<\/span>consumeAsync<\/span>(<\/span><\/span>\n           <\/span>ConsumeParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setPurchaseToken<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>).<\/span>build<\/span>()<\/span><\/span>\n       <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> purchaseToken <\/span>-><\/span><\/span>\n           callback<\/span>.<\/span>onConsumeResponse<\/span>(<\/span>billingResult<\/span>,<\/span> purchaseToken<\/span>)<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u30b5\u30fc\u30d0\u30fc\u691c\u8a3c\u306a\u3057:<\/p>\n\n\n\n
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private<\/span> <\/span>fun<\/span> <\/span>processPurchase<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase<\/span>)<\/span> <\/span>{<\/span><\/span>\n   <\/span>if<\/span> <\/span>(<\/span>purchase<\/span>.<\/span>purchaseState <\/span>==<\/span> <\/span>Purchase<\/span>.<\/span>PurchaseState<\/span>.<\/span>PURCHASED<\/span>)<\/span> <\/span>{<\/span><\/span>\n       on<\/span>PurchaseListener?<\/span>.<\/span>onPurchaseSuccess<\/span>(<\/span>purchase<\/span>)<\/span><\/span>\n<\/span>\n       <\/span>if<\/span> <\/span>(<\/span>purchase<\/span>.<\/span>skus<\/span>.<\/span>firstOrNull<\/span>()<\/span> <\/span>==<\/span> <\/span>"<\/span>coin_pack_large<\/span>"<\/span>)<\/span> <\/span>{<\/span><\/span>\n           <\/span>\/\/consuming our only consumable product<\/span><\/span>\n           consumePurchase<\/span>(<\/span>purchase<\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> purchaseToken <\/span>-><\/span><\/span>\n               <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>!=<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n                   <\/span>\/\/implement retry logic or try to consume again in onResume()<\/span><\/span>\n               <\/span>}<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span> <\/span>else<\/span> <\/span>if<\/span> <\/span>(<\/span>!<\/span>purchase<\/span>.<\/span>isAcknowledged<\/span>)<\/span> <\/span>{<\/span><\/span>\n           acknowledgePurchase<\/span>(<\/span>purchase<\/span>)<\/span> <\/span>{<\/span> billingResult <\/span>-><\/span><\/span>\n               <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>!=<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n                   <\/span>\/\/implement retry logic or try to acknowledge again in onResume()<\/span><\/span>\n               <\/span>}<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u30b5\u30fc\u30d0\u30fc\u691c\u8a3c\u3042\u308a:<\/p>\n\n\n\n
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private<\/span> <\/span>fun<\/span> <\/span>processPurchase<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase<\/span>)<\/span> <\/span>{<\/span><\/span>\n   <\/span>if<\/span> <\/span>(<\/span>purchase<\/span>.<\/span>purchaseState <\/span>==<\/span> <\/span>Purchase<\/span>.<\/span>PurchaseState<\/span>.<\/span>PURCHASED<\/span>)<\/span> <\/span>{<\/span><\/span>\n       api<\/span>.<\/span>verifyPurchase<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>)<\/span> <\/span>{<\/span> error <\/span>-><\/span><\/span>\n           <\/span>if<\/span> <\/span>(<\/span>error <\/span>!=<\/span> <\/span>null<\/span>)<\/span> <\/span>{<\/span><\/span>\n               on<\/span>PurchaseListener?<\/span>.<\/span>onPurchaseSuccess<\/span>(<\/span>purchase<\/span>)<\/span><\/span>\n<\/span>\n               <\/span>if<\/span> <\/span>(<\/span>purchase<\/span>.<\/span>skus<\/span>.<\/span>firstOrNull<\/span>()<\/span> <\/span>==<\/span> <\/span>"<\/span>coin_pack_large<\/span>"<\/span>)<\/span> <\/span>{<\/span><\/span>\n                   <\/span>\/\/consuming our only consumable product<\/span><\/span>\n                   billingClient<\/span>.<\/span>consumeAsync<\/span>(<\/span><\/span>\n                       <\/span>ConsumeParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setPurchaseToken<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>)<\/span><\/span>\n                           <\/span>.<\/span>build<\/span>()<\/span><\/span>\n                   <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> purchaseToken <\/span>-><\/span><\/span>\n                       <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>!=<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n                           <\/span>\/\/implement retry logic or try to consume again in onResume()<\/span><\/span>\n                       <\/span>}<\/span><\/span>\n                   <\/span>}<\/span><\/span>\n               <\/span>}<\/span><\/span>\n           <\/span>}<\/span> <\/span>else<\/span> <\/span>{<\/span><\/span>\n               <\/span>\/\/handle verification error<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
\u4ee5\u964d\u306e\u8a18\u4e8b\u3067\u306f\u3001\u8cfc\u5165\u306e\u305f\u3081\u306e\u30b5\u30fc\u30d0\u30fc\u8a8d\u8a3c\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n
\u305d\u306e\u305f\u3081\u3001BillingClientWrapper\u30af\u30e9\u30b9\u306e\u73fe\u5728\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
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import<\/span> <\/span>android.app.Activity<\/span><\/span>\nimport<\/span> <\/span>android.content.Context<\/span><\/span>\nimport<\/span> <\/span>com.android.billingclient.api.*<\/span><\/span>\n<\/span>\nclass<\/span> <\/span>BillingClientWrapper<\/span>(<\/span>context<\/span>:<\/span> <\/span>Context<\/span>,<\/span> <\/span>private<\/span> <\/span>val<\/span> <\/span>api<\/span>:<\/span> <\/span>Api<\/span>)<\/span> <\/span>:<\/span> <\/span>PurchasesUpdatedListener<\/span> <\/span>{<\/span><\/span>\n<\/span>\n   <\/span>interface<\/span> <\/span>OnQueryProductsListener<\/span> <\/span>{<\/span><\/span>\n       <\/span>fun<\/span> <\/span>onSuccess<\/span>(<\/span>products<\/span>:<\/span> <\/span>List<\/span><<\/span>SkuDetails<\/span>><\/span>)<\/span><\/span>\n       <\/span>fun<\/span> <\/span>onFailure<\/span>(<\/span>error<\/span>:<\/span> <\/span>Error<\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>interface<\/span> <\/span>OnPurchaseListener<\/span> <\/span>{<\/span><\/span>\n       <\/span>fun<\/span> <\/span>onPurchaseSuccess<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase?<\/span>)<\/span><\/span>\n       <\/span>fun<\/span> <\/span>onPurchaseFailure<\/span>(<\/span>error<\/span>:<\/span> <\/span>Error<\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>var<\/span> onPurchaseListener<\/span>:<\/span> <\/span>OnPurchaseListener?<\/span> <\/span>=<\/span> <\/span>null<\/span><\/span>\n<\/span>\n   <\/span>class<\/span> <\/span>Error<\/span>(<\/span>val<\/span> <\/span>responseCode<\/span>:<\/span> <\/span>Int<\/span>,<\/span> <\/span>val<\/span> <\/span>debugMessage<\/span>:<\/span> <\/span>String<\/span>)<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>val<\/span> billingClient <\/span>=<\/span> <\/span>BillingClient<\/span><\/span>\n       <\/span>.<\/span>newBuilder<\/span>(<\/span>context<\/span>)<\/span><\/span>\n       <\/span>.<\/span>enablePendingPurchases<\/span>()<\/span><\/span>\n       <\/span>.<\/span>setListener<\/span>(<\/span>this<\/span>)<\/span><\/span>\n       <\/span>.<\/span>build<\/span>()<\/span><\/span>\n<\/span>\n   <\/span>fun<\/span> <\/span>purchase<\/span>(<\/span>activity<\/span>:<\/span> <\/span>Activity<\/span>,<\/span> <\/span>product<\/span>:<\/span> <\/span>SkuDetails<\/span>)<\/span> <\/span>{<\/span><\/span>\n       onConnected <\/span>{<\/span><\/span>\n           activity<\/span>.<\/span>runOnUiThread <\/span>{<\/span><\/span>\n               billingClient<\/span>.<\/span>launchBillingFlow<\/span>(<\/span><\/span>\n                   activity<\/span>,<\/span><\/span>\n                   <\/span>BillingFlowParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setSkuDetails<\/span>(<\/span>product<\/span>).<\/span>build<\/span>()<\/span><\/span>\n               <\/span>)<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>fun<\/span> <\/span>queryProducts<\/span>(<\/span>listener<\/span>:<\/span> <\/span>OnQueryProductsListener<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>val<\/span> skusList <\/span>=<\/span> <\/span>listOf<\/span>(<\/span>"<\/span>premium_sub_month<\/span>"<\/span>,<\/span> <\/span>"<\/span>premium_sub_year<\/span>"<\/span>,<\/span> <\/span>"<\/span>coin_pack_large<\/span>"<\/span>,<\/span> <\/span>"<\/span>unlock_feature<\/span>"<\/span>)<\/span><\/span>\n<\/span>\n       queryProductsForType<\/span>(<\/span><\/span>\n           skusList<\/span>,<\/span><\/span>\n           <\/span>BillingClient<\/span>.<\/span>SkuType<\/span>.<\/span>SUBS<\/span><\/span>\n       <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> skuDetailsList <\/span>-><\/span><\/span>\n           <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>==<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n               <\/span>val<\/span> products <\/span>=<\/span> skuDetailsList <\/span>?:<\/span> <\/span>mutableListOf<\/span>()<\/span><\/span>\n               queryProductsForType<\/span>(<\/span><\/span>\n                   skusList<\/span>,<\/span><\/span>\n                   <\/span>BillingClient<\/span>.<\/span>SkuType<\/span>.<\/span>INAPP<\/span><\/span>\n               <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> skuDetailsList <\/span>-><\/span><\/span>\n                   <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>==<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n                       products<\/span>.<\/span>addAll<\/span>(<\/span>skuDetailsList <\/span>?:<\/span> <\/span>listOf<\/span>())<\/span><\/span>\n                       listener<\/span>.<\/span>onSuccess<\/span>(<\/span>products<\/span>)<\/span><\/span>\n                   <\/span>}<\/span> <\/span>else<\/span> <\/span>{<\/span><\/span>\n                       listener<\/span>.<\/span>onFailure<\/span>(<\/span><\/span>\n                           <\/span>Error<\/span>(<\/span>billingResult<\/span>.<\/span>responseCode<\/span>,<\/span> billingResult<\/span>.<\/span>debugMessage<\/span>)<\/span><\/span>\n                       <\/span>)<\/span><\/span>\n                   <\/span>}<\/span><\/span>\n               <\/span>}<\/span><\/span>\n           <\/span>}<\/span> <\/span>else<\/span> <\/span>{<\/span><\/span>\n               listener<\/span>.<\/span>onFailure<\/span>(<\/span><\/span>\n                   <\/span>Error<\/span>(<\/span>billingResult<\/span>.<\/span>responseCode<\/span>,<\/span> billingResult<\/span>.<\/span>debugMessage<\/span>)<\/span><\/span>\n               <\/span>)<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>queryProductsForType<\/span>(<\/span><\/span>\n       <\/span>skusList<\/span>:<\/span> <\/span>List<\/span><<\/span>String<\/span>><\/span>,<\/span><\/span>\n       <\/span>@BillingClient.SkuType<\/span> <\/span>type<\/span>:<\/span> <\/span>String<\/span>,<\/span><\/span>\n       <\/span>listener<\/span>:<\/span> <\/span>SkuDetailsResponseListener<\/span><\/span>\n   <\/span>)<\/span> <\/span>{<\/span><\/span>\n       onConnected <\/span>{<\/span><\/span>\n           billingClient<\/span>.<\/span>querySkuDetailsAsync<\/span>(<\/span><\/span>\n               <\/span>SkuDetailsParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setSkusList<\/span>(<\/span>skusList<\/span>).<\/span>setType<\/span>(<\/span>type<\/span>).<\/span>build<\/span>(),<\/span><\/span>\n               listener<\/span><\/span>\n           <\/span>)<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>onConnected<\/span>(<\/span>block<\/span>:<\/span> <\/span>()<\/span> <\/span>-><\/span> <\/span>Unit<\/span>)<\/span> <\/span>{<\/span><\/span>\n       billingClient<\/span>.<\/span>startConnection<\/span>(<\/span>object<\/span> <\/span>:<\/span> <\/span>BillingClientStateListener<\/span> {<\/span><\/span>\n           override fun onBillingSetupFinished<\/span>(<\/span>billingResult<\/span>:<\/span> <\/span>BillingResult<\/span>)<\/span> {<\/span><\/span>\n               block<\/span>()<\/span><\/span>\n           }<\/span><\/span>\n<\/span>\n           override fun onBillingServiceDisconnected<\/span>()<\/span> {<\/span><\/span>\n               <\/span>\/\/<\/span> <\/span>Try<\/span> to restart the connection on the next request to<\/span><\/span>\n               <\/span>\/\/<\/span> <\/span>Google<\/span> <\/span>Play<\/span> by calling the startConnection<\/span>()<\/span> method<\/span>.<\/span><\/span>\n           }<\/span><\/span>\n       }<\/span>)<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>override<\/span> <\/span>fun<\/span> <\/span>onPurchasesUpdated<\/span>(<\/span><\/span>\n       <\/span>billingResult<\/span>:<\/span> <\/span>BillingResult<\/span>,<\/span><\/span>\n       <\/span>purchaseList<\/span>:<\/span> <\/span>MutableList<\/span><<\/span>Purchase<\/span>><\/span>?<\/span><\/span>\n   <\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>when<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode<\/span>)<\/span> <\/span>{<\/span><\/span>\n           <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span> <\/span>-><\/span> <\/span>{<\/span><\/span>\n               <\/span>if<\/span> <\/span>(<\/span>purchaseList <\/span>==<\/span> <\/span>null<\/span>)<\/span> <\/span>{<\/span><\/span>\n                   <\/span>\/\/to be discussed in the next article<\/span><\/span>\n                   on<\/span>PurchaseListener?<\/span>.<\/span>onPurchaseSuccess<\/span>(<\/span>null<\/span>)<\/span><\/span>\n                   <\/span>return<\/span><\/span>\n               <\/span>}<\/span><\/span>\n<\/span>\n               purchaseList<\/span>.<\/span>forEach<\/span>(::<\/span>processPurchase<\/span>)<\/span><\/span>\n           <\/span>}<\/span><\/span>\n           <\/span>else<\/span> <\/span>-><\/span> <\/span>{<\/span><\/span>\n               <\/span>\/\/error occured or user canceled<\/span><\/span>\n               on<\/span>PurchaseListener?<\/span>.<\/span>onPurchaseFailure<\/span>(<\/span><\/span>\n                   <\/span>BillingClientWrapper<\/span>.<\/span>Error<\/span>(<\/span><\/span>\n                       billingResult<\/span>.<\/span>responseCode<\/span>,<\/span><\/span>\n                       billingResult<\/span>.<\/span>debugMessage<\/span><\/span>\n                   <\/span>)<\/span><\/span>\n               <\/span>)<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>processPurchase<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase<\/span>)<\/span> <\/span>{<\/span><\/span>\n       <\/span>if<\/span> <\/span>(<\/span>purchase<\/span>.<\/span>purchaseState <\/span>==<\/span> <\/span>Purchase<\/span>.<\/span>PurchaseState<\/span>.<\/span>PURCHASED<\/span>)<\/span> <\/span>{<\/span><\/span>\n           api<\/span>.<\/span>verifyPurchase<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>)<\/span> <\/span>{<\/span> error <\/span>-><\/span><\/span>\n               <\/span>if<\/span> <\/span>(<\/span>error <\/span>!=<\/span> <\/span>null<\/span>)<\/span> <\/span>{<\/span><\/span>\n                   on<\/span>PurchaseListener?<\/span>.<\/span>onPurchaseSuccess<\/span>(<\/span>purchase<\/span>)<\/span><\/span>\n<\/span>\n                   <\/span>if<\/span> <\/span>(<\/span>purchase<\/span>.<\/span>skus<\/span>.<\/span>firstOrNull<\/span>()<\/span> <\/span>==<\/span> <\/span>"<\/span>coin_pack_large<\/span>"<\/span>)<\/span> <\/span>{<\/span><\/span>\n                       <\/span>\/\/consuming our only consumable product<\/span><\/span>\n                       billingClient<\/span>.<\/span>consumeAsync<\/span>(<\/span><\/span>\n                           <\/span>ConsumeParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setPurchaseToken<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>)<\/span><\/span>\n                               <\/span>.<\/span>build<\/span>()<\/span><\/span>\n                       <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> purchaseToken <\/span>-><\/span><\/span>\n                           <\/span>if<\/span> <\/span>(<\/span>billingResult<\/span>.<\/span>responseCode <\/span>!=<\/span> <\/span>BillingClient<\/span>.<\/span>BillingResponseCode<\/span>.<\/span>OK<\/span>)<\/span> <\/span>{<\/span><\/span>\n                               <\/span>\/\/implement retry logic or try to consume again in onResume()<\/span><\/span>\n                           <\/span>}<\/span><\/span>\n                       <\/span>}<\/span><\/span>\n                   <\/span>}<\/span><\/span>\n               <\/span>}<\/span> <\/span>else<\/span> <\/span>{<\/span><\/span>\n                   <\/span>\/\/handle verification error<\/span><\/span>\n               <\/span>}<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>acknowledgePurchase<\/span>(<\/span><\/span>\n       <\/span>purchase<\/span>:<\/span> <\/span>Purchase<\/span>,<\/span><\/span>\n       <\/span>callback<\/span>:<\/span> <\/span>AcknowledgePurchaseResponseListener<\/span><\/span>\n   <\/span>)<\/span> <\/span>{<\/span><\/span>\n       onConnected <\/span>{<\/span><\/span>\n           billingClient<\/span>.<\/span>acknowledgePurchase<\/span>(<\/span><\/span>\n               <\/span>AcknowledgePurchaseParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setPurchaseToken<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>)<\/span><\/span>\n                   <\/span>.<\/span>build<\/span>(),<\/span><\/span>\n               <\/span>callback<\/span>::<\/span>onAcknowledgePurchaseResponse<\/span><\/span>\n           <\/span>)<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n<\/span>\n   <\/span>private<\/span> <\/span>fun<\/span> <\/span>consumePurchase<\/span>(<\/span>purchase<\/span>:<\/span> <\/span>Purchase<\/span>,<\/span> <\/span>callback<\/span>:<\/span> <\/span>ConsumeResponseListener<\/span>)<\/span> <\/span>{<\/span><\/span>\n       onConnected <\/span>{<\/span><\/span>\n           billingClient<\/span>.<\/span>consumeAsync<\/span>(<\/span><\/span>\n               <\/span>ConsumeParams<\/span>.<\/span>newBuilder<\/span>().<\/span>setPurchaseToken<\/span>(<\/span>purchase<\/span>.<\/span>purchaseToken<\/span>).<\/span>build<\/span>()<\/span><\/span>\n           <\/span>)<\/span> <\/span>{<\/span> billingResult<\/span>,<\/span> purchaseToken <\/span>-><\/span><\/span>\n               callback<\/span>.<\/span>onConsumeResponse<\/span>(<\/span>billingResult<\/span>,<\/span> purchaseToken<\/span>)<\/span><\/span>\n           <\/span>}<\/span><\/span>\n       <\/span>}<\/span><\/span>\n   <\/span>}<\/span><\/span>\n}<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n
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\u3082\u3061\u308d\u3093\u30012\u756a\u76ee\u306e\u4f8b\u306eacknowledgement\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u30b5\u30a4\u30c9\u306b\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3067\u4f55\u304b\u3092\u5b9f\u884c\u3067\u304d\u308b\u306a\u3089\u3001\u5b9f\u884c\u3057\u3066\u304f\u3060\u3055\u3044\u3002acknowledgement\u307e\u305f\u306fconsumption\u30d7\u30ed\u30bb\u30b9\u306e\u3044\u305a\u308c\u304b\u3067\u30a8\u30e9\u30fc\u304c\u8fd4\u3055\u308c\u305f\u5834\u5408\u3001\u3053\u308c\u3089\u306f\u7121\u8996\u3067\u304d\u307e\u305b\u3093\u3002 PurchaseState.PURCHASED<\/em><\/a>\u30b9\u30c6\u30fc\u30bf\u30b9\u304c\u8868\u793a\u3055\u308c\u30663\u65e5\u4ee5\u5185\u306b\u3053\u308c\u3089\u306e\u3044\u305a\u308c\u3082\u5b9f\u884c\u3055\u308c\u306a\u3044\u5834\u5408\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u3001\u8fd4\u91d1\u3055\u308c\u307e\u3059\u3002\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3067\u306f\u5b9f\u884c\u3067\u304d\u305a\u3001\u4f55\u5ea6\u8a66\u3057\u3066\u3082\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u7d9a\u3051\u308b\u5834\u5408\u306f\u3001\u4fe1\u983c\u3067\u304d\u308b\u56de\u907f\u7b56\u304c\u3042\u308a\u307e\u3059\u3002onStart()\u3084onResume()<\/a>\u306a\u3069\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u30e1\u30bd\u30c3\u30c9\u3092\u4ecb\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u306e\u73fe\u5728\u306e\u8cfc\u5165\u60c5\u5831\u3092\u53d6\u5f97\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u3068\u304d\u306b3\u65e5\u4ee5\u5185\u306b\u30a2\u30d7\u30ea\u3092\u958b\u304f\u3053\u3068\u3092\u671f\u5f85\u3057\u3066\u3001\u8a66\u884c\u3092\u7d9a\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
purchaseList \u304c\u7a7a\u3067\u306a\u3044\u5834\u5408\u3001\u4fdd\u7559\u4e2d\u306e\u8cfc\u5165\u3082\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u6700\u521d\u306bpurchaseState\u304cPurchaseState.PURCHASED<\/a>\u306b\u7b49\u3057\u3044\u30a2\u30a4\u30c6\u30e0\u3092\u9078\u629e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3001\u30e6\u30fc\u30b6\u30fc\u30d5\u30ed\u30fc\u306f\u3053\u3053\u3067\u7d42\u4e86\u3057\u307e\u3059\u3002\u53c2\u7167\u8cc7\u6599<\/a>\u306b\u3088\u308b\u3068\u3001\u30b5\u30fc\u30d0\u30fc\u3067\u8cfc\u5165\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3064\u3044\u3066\u306f\u3001\u672c\u30b7\u30ea\u30fc\u30ba\u306e\u5f8c\u7d9a\u306e\u8a18\u4e8b\u3067\u8aac\u660e\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u306e\u691c\u8a3c\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3057\u3066Google\u306b\u901a\u77e5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u901a\u77e5\u3057\u306a\u304b\u3063\u305f\u5834\u5408\u3001\u8cfc\u5165\u306f3\u65e5\u5f8c\u306b\u81ea\u52d5\u7684\u306b\u6255\u3044\u623b\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306fGoogle Play\u72ec\u81ea\u306e\u30dd\u30ea\u30b7\u30fc\u3067\u3042\u308a\u3001iOS \u3067\u306f\u540c\u69d8\u306e\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u3051\u3066\u3044\u307e\u305b\u3093\u3002\u30e6\u30fc\u30b6\u30fc\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u914d\u4fe1\u3057\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u6b21\u306e2\u3064\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
launchBillingFlow()\u30e1\u30bd\u30c3\u30c9\u306b\u306f\u30b3\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u3042\u308a\u307e\u305b\u3093\u3002\u5fdc\u7b54\u306f onPurchasesUpdated()\u30e1\u30bd\u30c3\u30c9\u306b\u8fd4\u3055\u308c\u307e\u3059\u3002\u524d\u56de\u306e\u8a18\u4e8b<\/a>\u3067\u5ba3\u8a00\u3057\u3001\u5f8c\u3067\u4fdd\u5b58\u3057\u305f\u3053\u3068\u3092\u899a\u3048\u3066\u3044\u307e\u3059\u304b\uff1f\u4eca\u3053\u305d\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
product.price\u306f\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u73fe\u5730\u901a\u8ca8\u3092\u6307\u5b9a\u3059\u308b\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u6e08\u307f\u306e\u6587\u5b57\u5217\u3067\u3059\u3002\u8ffd\u52a0\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002 SkuDetails<\/a>\u30af\u30e9\u30b9\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u4ed6\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3082\u3001\u5b8c\u5168\u306b\u30ed\u30fc\u30ab\u30e9\u30a4\u30ba\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u4fbf\u5b9c\u4e0a\u3001\u30a2\u30a4\u30c6\u30e0\u306eSKU<\/a>\u304c\u91cd\u8981\u3068\u306a\u308a\u3001\u5024\u304c\u753b\u9762\u4e0a\u306e\u5bfe\u5fdc\u3059\u308b\u30dc\u30bf\u30f3\u3067\u3042\u308b\u30de\u30c3\u30d7\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n