Make the app content blank in the "recent apps" list

Question

When the app is shown in the recents menu, I need to make the content blank, so that screenshots can not be taken. This flag works

 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);

and the screen becomes empty white. I need to handle the scenario where the user has selected the dark mode, and so the screen must be empty dark.

What other options can I have other than using this flag?

check this link if it can help you out https://stackoverflow.com/a/75463362/2715073 — Pankaj, Feb 15 '23 at 17:25

score 1 · Answer 1 · answered Feb 23 '22 at 11:56

1

Sorry, but you do not have control over how the OS displays your app in the overview screen, in terms of the color when FLAG_SECURE is used.

answered Feb 23 '22 at 11:56

CommonsWare

thanks a lot. A question: do you know if enabling/disabling it in onpause/onresume respectively, could cause any issue? – gianpaolo Feb 24 '22 at 09:08
1

@gianpaolo: You cannot reliably change the `FLAG_SECURE` setting, last I checked. – CommonsWare Feb 24 '22 at 12:48

score 0 · Answer 2 · answered Feb 23 '22 at 13:29

0

I have found this library on github that solves the problem.

You can use custom layout for the recent app views.

answered Feb 23 '22 at 13:29

gianpaolo

2 Answers2