I have a button in my app that brings up the system app settings UI. Instructions are given around the button.

I want to provide further instructions to the user via a toast message after the settings page shows up so they know exactly what to do. It's not a super intuitive setting, related to notification style, and such instructions would be a lot clearer when the user is actually on the settings page.

In Android, this is easily done via toast.makeText().show(). The resulting toast would have no problem going on top of the system settings UI.

In iOS though, I've looked up several guides, mostly using the UIView animation. The problem is, the resulting toast window seems to only work inside the app itself. It cannot go on top of the system settings UI.

Is what I want to achieve technically possible in iOS?

CodePudding user response：

No. You are sandboxed; Settings is a different app and you cannot impose anything on to its interface.