Tapping on "ankidroid" icon should always allow quick access to the deckpicker

[Arthur-Milchior]

Here is an issue I currently have using the widget or using the shortcuts.

• Ensure Ankidroid is closed (force close him if needed)
• Use a shortcut or widget to open a deck
• go back to android main screen, but don't close ankidroid

Let's no state I want to sync ankidroid.

• tap on ankidroid
• You should still be in reviewer. That's normal, the reviewer was the last opened screen
• tap back

Expected result:

• going to deck picker, given that it's what is usually below in the stack and what I wanted to open in the first place.

Actual result:

• closing ankidroid

In theory we could catch the back press and just open the deck picker on top of the stack. Except that this is not a good universal solution. Indeed, consider the following scenario

• using a widget or shotcut, directly open a deck in the reviewer
• press back

The expected result is to close ankidroid, so that the user goes back to android main view as expected.

So honestly, I'm not even sure what's the right solution to this issue

[Arthur-Milchior]

I think it may be related to stack management, which is considered in https://github.com/ankidroid/Anki-Android/issues/17073 , so maybe they should be fixed together. Not sure. Ping @xenonnn4w