I have a question very similar to this one. I'm designing a music player, and one of the screens is the Queue (or "Up Next" as other apps call it). I'm trying to figure out how best to allow the user to go back to the previous (music player) screen.
I'm thinking the best way might be to have some symbol that means "done". But unlike the post I linked above, the "done" I want is more like "I'm done viewing the queue" rather than "I've completed the task". This might mean the user did some re-arranging of songs in their queue, but it could also mean they just wanted to see what was coming up next. Because of that, I don't think a check mark is the right icon.
Below is a screenshot of my Queue screen. Just for some context, I'm imagining an original OS where the bezel at the bottom is adaptable to the screen. So the home button stays in the middle, but the buttons on either side can change. In this case, I just have the word "done", but I'm trying to stick to icons rather than words.
I was also thinking of possibly using an X icon. But I also previously used the icon in an email app (part of the same imaginary OS) and in that case the X icon means "cancel writing this email". As a result, using the X in the case of the Queue to mean "done with viewing the queue" might be confusing. I also thought that an X might confuse users by leading them to think that it will close the whole player slide-out screen.
Does anyone have any ideas? Thanks!
Edit: Adding a photo of the screen prior to the Queue Screen. The user would tap the list icon (far right icon) to get to the Queue.