When an Android activity is launched, it is launched with an intent and data. I call these the launch parameters. When it becomes necessary to retrieve these parameters, the code to do it is as follows:
Intent launchIntent = getIntent(); if (launchIntent != null) { Uri data = launchIntent.getData(); if (data != null) { Filename = data.getPath(); // extracts the filename as /filepath/filename, if this is a file:///filepath/filename URI } }
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