In-app purchase tutorial

Martin_Fitzgibbons · March 11, 2021, 11:20am

Thanks @Christoph_Emrich that worked fine with the latest Xojo release and with a few adjustments to my older project in R1.2. I did have to remove Jeremie’s nice modal window effect for the latest Xojo. App store accepted and approved both projects.
Cheers
Martin

Deon_Evangeline · March 12, 2021, 4:29pm

Christoph_Emrich:

I am sorry, took me a lot longer than expected. The display of my MacBook passed out and it’s now with Apple for the next three weeks so I had to find a replacement. Thank God for our awesome neighbors.

This is the code I am using. It crashes in the simulator but it works on a device. Most (if not all) of the code and comments are from @Ryan_Hartz IAP tutorial. Just reshuffled some of the stuff. The sample project also has some of @Jason_King and @Jeremie_L extensions.

This is what you have to do to make it work:

Make sure to replace the values in the productID with your company name, app name and IAP name everywhere in the code.

com.ReplaceWithCompanyName.ReplaceWithAppName.ReplaceWithIAPName

The same values have to show in the bundle identifier in the iOS settings.

com.ReplaceWithCompanyName.ReplaceWithAppName

Make sure to activate In App Purchase in the iOS build settings. It is activated in the sample project but if you copy the code to your project, it might not be.

https://www.amazon.de/clouddrive/share/employee monitoring /R22IyELIQOVQrWm4gDBHmRRALQFyUoaml4yw3UuOlct

Thanks @Christoph_Emrich! but I have one question - I read in the comments that this works well with the latest version, will it work with other versions of Xojo? or is it better to upgrade to the latest version first?

Christoph_Emrich · March 19, 2021, 5:39pm

There are quite a few declares from @Jason_King iOSKit and that’s based on API 2.0 so I would think it only works with the latest Xojo release.

Christoph_Emrich · March 19, 2021, 6:14pm

Has anybody used consumable IAPs and tried promo codes for them? How would that work in Xojo?

To precise my question: if a user redeems a promo code for a consumable IAP in the AppStore, how could I handle that in the app’s code? It probably won’t work with a simple “restore purchase”, or will it?

Jason_King · March 19, 2021, 9:23pm

If you want to use iOSKit with API1 (AKA old versions of Xojo) please use the API1-compatible branch GitHub - kingj5/iOSKit at API1-compatible

Jason_King · March 19, 2021, 9:41pm

For redeeming purchases from a promo code it looks like you will need to setup the observer stuff for the iAPs within the application Opening event. See here:

Martin_Fitzgibbons · July 13, 2021, 2:31am

Has anyone done a recent IAP purchase using the sample code here?
I had it working in a few apps and a recent change from Apple caused my next one to be rejected. Jason kindly updated store kit but he doesn’t have a Mac to test so I was trying but my App still crashes (See other thread & works fine except for IAP).