Chester Wilson

Dave, you are F@#$%^ wonderful! I have spend the last couple of days finding out which things no longer work in later Delphis, and which things in modern Delphis no longer work in ancient androids. It has been a humbling experience, giving me incredible insight into the marketing behind android! From a severe lesson in understanding of why you would never dream of supporting old versions of android, you give me hope that in the future (10.4 style) things may still be possible! Many thanks! If I ever meet you, I owe you a beer! Chester.

That was very helpful, thank you Dave. I will now have to get a few earlier versions of Delphi and set them up on a spare machine to work out which version I need so I can continue to service a small number of ancient (like me!) devices. All the best! Chester.

Thanks, Dave. You are the first person to give me some kind of helpful advice for this problem, and I appreciate that greatly! I modified AndroidManifest.Template.xml minSdkVersion to 12, and minTargetVersion to 21. At least I get a different error message now: "Install Parse Failed No Certificates". I don't know what that means. (Previous instals failed with Install Failed Older SDK). Is this going to happen to all devices with future releases of Delphi, so we have to keep an old version of Delphi around so we can still service clients with older machines? And about how often will we have to do this? Every 3 years? Or every so often do we have to tell people to go out and buy new machines? Is there any way of getting some warning of this happening (instead of finding out a week before the Department goes chasing Bilbies in Western Queensland, and the latest version of their tracking software suddenly refuses to load onto their tablets! Ouch!)

Delphi 10.3, firemonkey. Need to learn how to write Delphi Firefox routines that call or are called (back) by various Java/Android routines. Please tell me where to find code examples for firemonkey delphi gnss with java things and loopers and callbacks and things.

True, Lars. Sorry. It's been one of those months! I have tried to edit it, but have not managed to find out how. Any ideas where to find the information requested please?