Google Play 支付文檔：https://developer.android.com/google/play/billing/integrate

Google Play 支付庫已經(jīng)升級到5.0了，相對之前的版本有不少的變化，現(xiàn)在記錄下！

接入Google Play 流程還是和之前一樣：

1.去Google console 申請開發(fā)者賬號? https://play.google.com/console/??

2.創(chuàng)建項(xiàng)目，上傳APK

3.去Google console項(xiàng)目后臺開始設(shè)置商品：點(diǎn)擊左側(cè)Products---->In-app products(內(nèi)購商品)或者Subscription(訂閱商品)

?4.等Google Pay Console 后臺創(chuàng)建好商品后，客戶端和后端就可以開始集成了：

? 4.1：將 Google Play 結(jié)算庫依賴項(xiàng)添加到應(yīng)用的

dependencies {
    val billing_version = "5.0.0"

    implementation("com.android.billingclient:billing:$billing_version")
}

4.2：初始化支付SDK(也就是初始化BillingClient):支付過程中BillingClient用的比較多，一般項(xiàng)目中只創(chuàng)建一個(gè)BillingClient

private BillingClient billingClient = BillingClient.newBuilder(context)
    .setListener(purchasesUpdatedListener)
    .enablePendingPurchases()
    .build();

初始化的時(shí)候需要一個(gè)：PurchasesUpdatedListener，PurchasesUpdatedListener是監(jiān)聽?wèi)?yīng)用中所有購買交易的更新，這個(gè)listener非常重要，當(dāng)用戶購買或者訂閱后都會(huì)走這個(gè)回調(diào)

private PurchasesUpdatedListener purchasesUpdatedListener = new PurchasesUpdatedListener() {
    @Override
    public void onPurchasesUpdated(BillingResult billingResult, List<Purchase> purchases) {
        // To be implemented in a later section.
    }
};

4.3初始化SDK后，需要與 Google Play 建立連接，使用startConnection()方法，startConnection是異步進(jìn)行，這個(gè)時(shí)候需要一個(gè)BillingClientStateListener進(jìn)行回調(diào)連接的結(jié)果，當(dāng)連接完成會(huì)走onBillingSetupFinished()回調(diào)，通過返回的billingResult.getResponseCode()去判斷是否真正的鏈接成功，這個(gè)code 有下面幾個(gè)值，這個(gè)BillingClientStateListener還有一個(gè)Google Play 失去連接的回調(diào)，這個(gè)時(shí)候我們需要實(shí)現(xiàn)重試邏輯，就是再次調(diào)用startConnection()函數(shù)。

    @Retention(RetentionPolicy.SOURCE)
    public @interface BillingResponseCode {
        int SERVICE_TIMEOUT = -3;
        int FEATURE_NOT_SUPPORTED = -2;
        int SERVICE_DISCONNECTED = -1;
        int OK = 0;
        int USER_CANCELED = 1;
        int SERVICE_UNAVAILABLE = 2;
        int BILLING_UNAVAILABLE = 3;
        int ITEM_UNAVAILABLE = 4;
        int DEVELOPER_ERROR = 5;
        int ERROR = 6;
        int ITEM_ALREADY_OWNED = 7;
        int ITEM_NOT_OWNED = 8;
    }

  public void startConnection() {
        mBillingClient.startConnection(new BillingClientStateListener() {
            @Override
            public void onBillingSetupFinished(BillingResult billingResult) {
                if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
                    // The BillingClient is ready. You can query purchases here.
                    queryProductDetailsParams();
                    queryOldOrder();
                }
            }

            @Override
            public void onBillingServiceDisconnected() {
                // Try to restart the connection on the next request to
                // Google Play by calling the startConnection() method.
            }
        });
    }

?4.4 獲取商品

? ? ? 當(dāng)startConnection()回調(diào)成功時(shí)，這個(gè)時(shí)候我們就可以根據(jù)ProductId去Google Play獲取具體的商品了，這個(gè)時(shí)候一般會(huì)通過API去自己的Server 獲取一個(gè)ProductIdList，然后根據(jù)后臺返回的productId去Google Play 獲取商品詳情。

查詢內(nèi)購的商品：

  List<String> skuList = new ArrayList<>();
        skuList.add("ProductId01");
        skuList.add("ProductId02");
        skuList.add("ProductId03");
        skuList.add("ProductId04");
        SkuDetailsParams.Builder params = SkuDetailsParams.newBuilder();
        params.setSkusList(skuList).setType(BillingClient.SkuType.INAPP);
        mBillingClient.querySkuDetailsAsync(params.build(), new SkuDetailsResponseListener() {
            @Override
            public void onSkuDetailsResponse(BillingResult billingResult, List<SkuDetails> skuDetailsList) {
                // Process the result.
                Log.i(TAG, "querySkuDetailsAsync 1 onSkuDetailsResponse billingResult.getResponseCode : " + billingResult.getResponseCode() + " skuDetailsList :" + skuDetailsList);
                mInAppSkuDetailsHashMap.clear();
                if (skuDetailsList != null && skuDetailsList.size() > 0) {
                    for (SkuDetails skuDetails : skuDetailsList) {
                        mInAppSkuDetailsHashMap.put(skuDetails.getSku(), skuDetails);
                    }
                }
            }
        });

查詢訂閱的商品：

 // The BillingClient is ready. You can query purchases here.
        List<String> subscribeSkuList = new ArrayList<>();
        subscribeSkuList.add("Subscribe01");
        subscribeSkuList.add("Subscribe01");
        subscribeSkuList.add("Subscribe01");
        SkuDetailsParams.Builder subscribeParams = SkuDetailsParams.newBuilder();
        subscribeParams.setSkusList(subscribeSkuList).setType(BillingClient.SkuType.SUBS);
        mBillingClient.querySkuDetailsAsync(subscribeParams.build(), new SkuDetailsResponseListener() {
            @Override
            public void onSkuDetailsResponse(BillingResult billingResult, List<SkuDetails> skuDetailsList) {
                // Process the result.
                Log.i(TAG, "querySkuDetailsAsync 2 onSkuDetailsResponse billingResult.getResponseCode : " + billingResult.getResponseCode() + " skuDetailsList :" + skuDetailsList);
                mSubscribeSkuDetailsHashMap.clear();
                if (skuDetailsList != null && skuDetailsList.size() > 0) {
                    for (SkuDetails skuDetails : skuDetailsList) {
                        mSubscribeSkuDetailsHashMap.put(skuDetails.getSku(), skuDetails);
                    }
                }
            }
        });

當(dāng)商品查詢成功后就可以結(jié)合Server返回的商品信息給用戶展示商品列表了

注意：有些 Android 設(shè)備安裝的可能是舊版 Google Play 商店應(yīng)用，不支持訂閱等某些商品類型。在您的應(yīng)用進(jìn)入結(jié)算流程之前，您可以調(diào)用?isFeatureSupported()?以確定設(shè)備是否支持您要銷售的商品。如需查看可支持的商品類型的列表，請參閱?BillingClient.FeatureType。

4.5.啟動(dòng)購買流程(開始購買)

? ?當(dāng)用戶點(diǎn)擊某個(gè)商品時(shí)，從應(yīng)用發(fā)起購買請求，請從應(yīng)用的主線程調(diào)用?launchBillingFlow()?方法。此方法接受對?BillingFlowParams?對象的引用，該對象包含通過調(diào)用?queryProductDetailsAsync()?獲取的相關(guān)?ProductDetails?對象。如需創(chuàng)建?BillingFlowParams?對象，請使用?BillingFlowParams.Builder?類。

購買內(nèi)購的商品：

    public void buyInAppProduct(SkuDetails skuDetails) {
        if (skuDetails == null) {
            return;
        }
        BillingFlowParams billingFlowParams = BillingFlowParams.newBuilder()
                .setSkuDetails(skuDetails)
                .build();
        mBillingClient.launchBillingFlow(ActivityUtils.getTopActivity(), billingFlowParams).getResponseCode();
    }

購買訂閱的商品：

  public void buySubscribeProduct(SkuDetails skuDetails) {
        if (skuDetails == null) {
            return;
        }
        BillingFlowParams billingFlowParams = BillingFlowParams.newBuilder()
                .setSkuDetails(skuDetails)
                .build();
        mBillingClient.launchBillingFlow(ActivityUtils.getTopActivity(), billingFlowParams).getResponseCode();
    }

// An activity reference from which the billing flow will be launched.
Activity activity = ...;

ImmutableList productDetailsParamsList =
    ImmutableList.of(
        ProductDetailsParams.newBuilder()
             // retrieve a value for "productDetails" by calling queryProductDetailsAsync()
            .setProductDetails(productDetails)
            // to get an offer token, call ProductDetails.getSubscriptionOfferDetails()
            // for a list of offers that are available to the user
            .setOfferToken(selectedOfferToken)
            .build()
    );

BillingFlowParams billingFlowParams = BillingFlowParams.newBuilder()
    .setProductDetailsParamsList(productDetailsParamsList)
    .build();

// Launch the billing flow
BillingResult billingResult = billingClient.launchBillingFlow(activity, billingFlowParams);

4.6購買成功的回調(diào)

?在咱們4.2初始化SDK的時(shí)候添加了一個(gè)PurchasesUpdatedListener，當(dāng)用戶購買成功后Google Play 會(huì)調(diào)用?onPurchasesUpdated()，我們根據(jù)responseCode去區(qū)分用戶購買成功與否.

如果成功購買商品，系統(tǒng)還會(huì)生成一個(gè)token，它是一個(gè)唯一標(biāo)識符，表示用戶及其所購應(yīng)用內(nèi)商品的商品 ID?？梢栽诒镜卮鎯?chǔ)token，可以將令牌傳遞到安全的后端服務(wù)器（推薦用該方法）

    private PurchasesUpdatedListener purchasesUpdatedListener = new PurchasesUpdatedListener() {
        @Override
        public void onPurchasesUpdated(BillingResult billingResult, List<Purchase> purchases) {
            if (billingResult == null) {
                return;
            }
            int responseCode = billingResult.getResponseCode();
            switch (responseCode) {
                case BillingClient.BillingResponseCode.OK:
                    for (Purchase purchase : purchases) {
                        SkuDetails skuDetails = null;
                        String json = purchase.getOriginalJson();
                        if (!TextUtils.isEmpty(json)) {
                            PurchaseData purchaseData = GsonConverter.fromJson(json, PurchaseData.class);
                            if (purchaseData != null) {
                                skuDetails = getSkuDetailsDependProductId(purchaseData.getProductId());
                            }
                        }
                        handlePurchase(purchase, (skuDetails != null && (BillingClient.SkuType.SUBS.equals(skuDetails.getType()))), "onPurchasesUpdated");
                    }
                    break;
                case BillingClient.BillingResponseCode.USER_CANCELED:
                    Log.i(TAG, "purchasesUpdatedListener 3 user cancel ");
                    break;
                default:
                    Log.i(TAG, "purchasesUpdatedListener 4 error  " + responseCode);
                    break;
            }
        }
    };

@Override
void onPurchasesUpdated(BillingResult billingResult, List<Purchase> purchases) {
    if (billingResult.getResponseCode() == BillingResponseCode.OK
        && purchases != null) {
        for (Purchase purchase : purchases) {
            handlePurchase(purchase);
        }
    } else if (billingResult.getResponseCode() == BillingResponseCode.USER_CANCELED) {
        // Handle an error caused by a user cancelling the purchase flow.
    } else {
        // Handle any other error codes.
    }
}

4.7.處理購買交易(消費(fèi)訂單)

當(dāng)用戶購買成功后，訂單必須消費(fèi)，如果不消費(fèi)，三天后Google會(huì)自動(dòng)退款，撤銷購買交易。
消費(fèi)內(nèi)購的商品：

void handlePurchase(Purchase purchase) {
    // Purchase retrieved from BillingClient#queryPurchasesAsync or your PurchasesUpdatedListener.
    Purchase purchase = ...;

    // Verify the purchase.
    // Ensure entitlement was not already granted for this purchaseToken.
    // Grant entitlement to the user.

    ConsumeParams consumeParams =
        ConsumeParams.newBuilder()
            .setPurchaseToken(purchase.getPurchaseToken())
            .build();

    ConsumeResponseListener listener = new ConsumeResponseListener() {
        @Override
        public void onConsumeResponse(BillingResult billingResult, String purchaseToken) {
            if (billingResult.getResponseCode() == BillingResponseCode.OK) {
                // Handle the success of the consume operation.
            }
        }
    };

    billingClient.consumeAsync(consumeParams, listener);
}

? 消費(fèi)訂閱商品：訂閱的處理方式與非消耗型商品類似。您可以使用 Google Play 結(jié)算庫中的?BillingClient.acknowledgePurchase()?或 Google Play Developer API 中的?Purchases.Subscriptions.Acknowledge?確認(rèn)訂閱。所有初始訂閱購買交易都需要確認(rèn)。訂閱續(xù)訂不需要確認(rèn)

BillingClient client = ...
AcknowledgePurchaseResponseListener acknowledgePurchaseResponseListener = ...

void handlePurchase(Purchase purchase) {
    if (purchase.getPurchaseState() == PurchaseState.PURCHASED) {
        if (!purchase.isAcknowledged()) {
            AcknowledgePurchaseParams acknowledgePurchaseParams =
                AcknowledgePurchaseParams.newBuilder()
                    .setPurchaseToken(purchase.getPurchaseToken())
                    .build();
            client.acknowledgePurchase(acknowledgePurchaseParams, acknowledgePurchaseResponseListener);
        }
    }
}

4.8 查詢歷史訂單，消費(fèi)待處理的交易

    public void queryOldOrder() {
        mBillingClient.queryPurchasesAsync(BillingClient.SkuType.INAPP, new PurchasesResponseListener() {
            @Override
            public void onQueryPurchasesResponse(@NonNull BillingResult billingResult, @NonNull List<Purchase> list) {
                if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
                    onHandlerQueryPurchases(list, false);
                }
            }
        });

        mBillingClient.queryPurchasesAsync(BillingClient.SkuType.SUBS, new PurchasesResponseListener() {
            @Override
            public void onQueryPurchasesResponse(@NonNull BillingResult billingResult, @NonNull List<Purchase> list) {
                if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK) {
                    onHandlerQueryPurchases(list, true);
                }
            }
        });

4.9?處理多件購買交易：

Google Play 允許客戶在一筆交易中購買多件相同的應(yīng)用內(nèi)商品，只需在購物車中指定商品數(shù)量即可（4.0 及更高版本的 Google Play 結(jié)算庫支持該功能）。應(yīng)用應(yīng)根據(jù)指定購買數(shù)量來處理多件購買并授予權(quán)利。注意：多件購買適用于消耗型應(yīng)用內(nèi)商品，即可以購買、消耗及再次購買的產(chǎn)品。請勿為不支持重復(fù)購買的商品啟用該功能。

為了實(shí)現(xiàn)多件購買，應(yīng)用的配置邏輯需要檢查商品數(shù)量?？梢詮囊韵?API 訪問?quantity?字段：

• Google Play 結(jié)算庫中的?getQuantity()。
• Google Play Developer API 中的?Purchases.products.quantity。

添加用于處理多件購買的邏輯后，需要在 Google Play 管理中心的應(yīng)用內(nèi)商品管理頁面上為相應(yīng)的商品啟用多件購買功能。

注意：請確保應(yīng)用接受多件購買，然后再在 Play 管理中心啟用該功能。您能需要強(qiáng)制更新到提供支持的應(yīng)用版本，然后才能對商品啟用該功能。文章來源地址http://www.zghlxwxcb.cn/news/detail-490681.html

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