Bật tính năng mua hàng trong custom paywall trên Android SDK

fun loadPaywall() {
    Adapty.getPaywall("YOUR_PLACEMENT_ID") { result ->
        when (result) {
            is AdaptyResult.Success -> {
                val paywall = result.value
                Adapty.getPaywallProducts(paywall) { productResult ->
                    when (productResult) {
                        is AdaptyResult.Success -> {
                            val products = productResult.value
                            // Use products to build your custom paywall UI
                        }
                        is AdaptyResult.Error -> {
                            val error = productResult.error
                            // Handle the error
                        }
                    }
                }
            }
            is AdaptyResult.Error -> {
                val error = result.error
                // Handle the error
            }
        }
    }
}

public void loadPaywall() {
    Adapty.getPaywall("YOUR_PLACEMENT_ID", result -> {
        if (result instanceof AdaptyResult.Success) {
            AdaptyPaywall paywall = ((AdaptyResult.Success<AdaptyPaywall>) result).getValue();
            
            Adapty.getPaywallProducts(paywall, productResult -> {
                if (productResult instanceof AdaptyResult.Success) {
                    List<AdaptyPaywallProduct> products = ((AdaptyResult.Success<List<AdaptyPaywallProduct>>) productResult).getValue();
                    // Use products to build your custom paywall UI
                } else if (productResult instanceof AdaptyResult.Error) {
                    AdaptyError error = ((AdaptyResult.Error) productResult).getError();
                    // Handle the error
                }
            });
        } else if (result instanceof AdaptyResult.Error) {
            AdaptyError error = ((AdaptyResult.Error) result).getError();
            // Handle the error
        }
    });
}

fun purchaseProduct(activity: Activity, product: AdaptyPaywallProduct) {
    Adapty.makePurchase(activity, product) { result ->
        when (result) {
            is AdaptyResult.Success -> {
                when (val purchaseResult = result.value) {
                    is AdaptyPurchaseResult.Success -> {
                        val profile = purchaseResult.profile
                        // Purchase successful, profile updated
                    }
                    is AdaptyPurchaseResult.UserCanceled -> {
                        // User canceled the purchase
                    }
                    is AdaptyPurchaseResult.Pending -> {
                        // Purchase is pending (e.g., user will pay offline with cash)
                    }
                }
            }
            is AdaptyResult.Error -> {
                val error = result.error
                // Handle the error
            }
        }
    }
}

public void purchaseProduct(Activity activity, AdaptyPaywallProduct product) {
    Adapty.makePurchase(activity, product, null, result -> {
        if (result instanceof AdaptyResult.Success) {
            AdaptyPurchaseResult purchaseResult = ((AdaptyResult.Success<AdaptyPurchaseResult>) result).getValue();
            
            if (purchaseResult instanceof AdaptyPurchaseResult.Success) {
                AdaptyProfile profile = ((AdaptyPurchaseResult.Success) purchaseResult).getProfile();
                // Purchase successful, profile updated
            } else if (purchaseResult instanceof AdaptyPurchaseResult.UserCanceled) {
                // User canceled the purchase
            } else if (purchaseResult instanceof AdaptyPurchaseResult.Pending) {
                // Purchase is pending (e.g., user will pay offline with cash)
            }
        } else if (result instanceof AdaptyResult.Error) {
            AdaptyError error = ((AdaptyResult.Error) result).getError();
            // Handle the error
        }
    });
}

fun restorePurchases() {
    Adapty.restorePurchases { result ->
        when (result) {
            is AdaptyResult.Success -> {
                val profile = result.value
                // Restore successful, profile updated
            }
            is AdaptyResult.Error -> {
                val error = result.error
                // Handle the error
            }
        }
    }
}

public void restorePurchases() {
    Adapty.restorePurchases(result -> {
        if (result instanceof AdaptyResult.Success) {
            AdaptyProfile profile = ((AdaptyResult.Success<AdaptyProfile>) result).getValue();
            // Restore successful, profile updated
        } else if (result instanceof AdaptyResult.Error) {
            AdaptyError error = ((AdaptyResult.Error) result).getError();
            // Handle the error
        }
    });
}