The Android Virtual Device Manager uses checkboxes instead of radio buttons for "Snapshot" and "Use Host GPU". However, they are mutually exclusive. Why would they use checkboxes instead of radio buttons?
Admittedly, they do display an error message for Shashank
But they only greyed out the OK for me.
Shouldn't the interface be using radio buttons instead of checkboxes (for those components)?
This UI is a control interface for AVD command-line tool and is developed to support future versions of it (without need of changing UI itself). Future versions of AVD tool may have different options so UI for these options are constructed automatically every time AVD settings is shown. And since there is no possibility to know how these options are related to each other there are checkboxes (every option could be simply in ON or OFF state) and simple validation algorithm which checks if all the options are correct and shows an error message if they're not (it actually runs the command-line tool, checks if there are errors and shows the output in the UI).
As a result: it may looks like a bad UX solution (and, frankly speaking, it is) but it seems like it's done by the reason I tried to explain above.
If you can only select one of several options, than radio buttons is the control to use. In this case, check boxes and error message only makes the user confused and annoyed - and that's really bad. You lose the trust of the system, which makes it easier for the user to move to competitor tool.
