CodeRage 8 is right around the corner!
This October 15th through the 17th, join Embarcadero for 3 full days of virtual conference sessions filled with mobile development topics using Delphi and RAD Studio XE5.
Watch especially for Brian Long's session. He'll be discussing some nifty tricks for Android, which we have discussed in private. ;o)
In 2017, with the release of Delphi 10.2 Tokyo, Embarcadero introduced a specialized implementation of the Observer pattern into the System.Classes unit. While it has been in the wild for 9 years, it remains a "hidden" architecture for many, primarily because it serves as the invisible engine behind LiveBindings. Other than live bindings, you can also use the Observer pattern as a way to update component settings to the Windows registry, an .ini file, or persist it elsewhere.
System.Classes