Is there a way to add controls to the settings page iOS creates on behalf of my app? As an example, the screen shot below is the settings page iOS displays when I select my app from the settings app on my phone. I’d like to add a control to this page to consolidate all the app settings in one place and to be able to read / set the content / state of the control I’d like to add.
yes, this is indeed possible. Apple recommends to use it only for infrequently changed configuration options:
The Settings app is a central location for making configuration changes throughout the system, but people must leave your app to get there. It’s far more convenient to adjust settings directly within your app.