Check if renewable subscription is active with Xamarin.Forms (Plugin.InAppBilling)

Question

I have a Xamarin.Forms application with a few renewable subscriptions. I am using the InAppBilling plugin to purchase these subscriptions. Now my questions is: (which I already asked in this post) How can I check if the renewable subscription is active? Thanks in advance.

Answer 1

Through the document, you can check the status by

var connected = await billing.ConnectAsync(ItemType.Subscription);:

Here is the example:

public async Task<bool> PurchaseItem(string productId, string payload)
{
    var billing = CrossInAppBilling.Current;
    try
    {
        var connected = await billing.ConnectAsync(ItemType.InAppPurchase);
        if (!connected)
        {
            //we are offline or can't connect, don't try to purchase
            return false;
        }

        //check purchases
        var purchase = await billing.PurchaseAsync(productId, ItemType.InAppPurchase, payload);

        //possibility that a null came through.
        if(purchase == null)
        {
            //did not purchase
        }
        else if(purchase.State == PurchaseState.Purchased)
        {
            //purchased!
            
        }
    }
    catch (InAppBillingPurchaseException purchaseEx)
    {
        //Billing Exception handle this based on the type
        Debug.WriteLine("Error: " + purchaseEx);
    }
    catch (Exception ex)
    {
        //Something else has gone wrong, log it
        Debug.WriteLine("Issue connecting: " + ex);
    }
    finally
    {
        await billing.DisconnectAsync();
    }