Android 应用内结算：订单取消后购买状态保持“已购买”

Android 应用内结算：订单取消后购买状态保持“已购买”

java
public class PurchaseActivity extends AppCompatActivity {
    private BillingClient billingClient;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_purchase);
        // 初始化 BillingClient
        billingClient = BillingClient.newBuilder(this)
                .setListener(purchaseUpdateListener)
                .enablePendingPurchases()
                .build();
        // 发起购买请求
        BillingFlowParams billingFlowParams = BillingFlowParams.newBuilder()
                .setSkuDetails(skuDetails)
                .build();
        billingClient.launchBillingFlow(this, billingFlowParams);
    }
    private PurchasesUpdatedListener purchaseUpdateListener = new PurchasesUpdatedListener() {
        @Override
        public void onPurchasesUpdated(BillingResult billingResult, @Nullable List purchases) {
            if (billingResult.getResponseCode() == BillingClient.BillingResponseCode.OK && purchases != null) {
                for (Purchase purchase : purchases) {
                    // 处理购买确认回调
                    if (purchase.getPurchaseState() == Purchase.PurchaseState.PURCHASED) {
                        // 查询订单状态
                        Purchase.PurchasesResult purchasesResult = billingClient.queryPurchases(BillingClient.SkuType.INAPP);
                        if (purchasesResult.getPurchasesList() != null) {
                            for (Purchase queriedPurchase : purchasesResult.getPurchasesList()) {
                                if (queriedPurchase.getOrderId().equals(purchase.getOrderId())) {
                                    if (queriedPurchase.getPurchaseState() == Purchase.PurchaseState.CANCELED
                                            || queriedPurchase.getPurchaseState() == Purchase.PurchaseState.REFUNDED) {
                                        // 更新购买状态为已取消
                                        updatePurchaseStatus(purchase, "已取消");
                                    } else {
                                        // 更新购买状态为已购买
                                        updatePurchaseStatus(purchase, "已购买");
                                    }
                                    break;
                                }
                            }
                        }
                    }
                }
            }
        }
    };
    private void updatePurchaseStatus(Purchase purchase, String status) {
        // 更新购买状态的逻辑
    }
}