开发指南

public class Demo : MonoBehaviour
{
    //...
    void Purchase()
    {
        if(ComboSDK.IsFeatureAvailable(Feature.PRODUCT_QUANTITY))
        {
            // 支持 选择商品数量
            OnPurchase(productId, quantity);
        }
        else
        {
            // 不支持 选择商品数量, 即商品数量为 1
            OnPurchase(productId, 1);
        }
    }

    void OnPurchase(string productId, int quantity)
    {
        // 注意：须向游戏服务端传入 商品数量
        GameClient.CreateOrder(
            productId,
            quantity,
            orderToken =>
            {
                var opts = new PurchaseOptions { orderToken = orderToken };
                ComboSDK.Purchase(opts, (Result<PurchaseResult> result) =>
                {
                    if (result.IsSuccess)
                    {
                        var purchaseResult = result.Data;
                        var orderId = purchaseResult.orderId
                    }
                    else
                    {
                        var error = result.Error;
                        LogErr(error.DetailMessage);
                    }
                });
            },
            () =>{}
        );
    }
    //...
}