How to disable screen mirroring?

Question

How to block the app to screen mirroring? As i check the FLAG_SECURE,

Window flag: treat the content of the window as secure, preventing it from appearing in screenshots or from being viewed on non-secure displays.

The from being viewed on non-secure displays is to block screen mirroring? if not, what does it means? And whether we can find some way to prevent the app from the screen mirroring?

Have you resolved this issue ? – Rishabh Saxena May 07 '19 at 13:13 — Rishabh Saxena, May 07 '19 at 13:13

score 0 · Answer 1 · answered Jun 03 '21 at 11:58

0

The FLAG_SECURE will prevent screenshots of your app and if the screen is recorded it will show a full black screen to prevent sensitive data being displayed for example.

But it does not block screen mirroring / casting unfortunately. There is no way to do it currently with the Android framework.

answered Jun 03 '21 at 11:58

Cyril

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Is this correct answer? Are you sure about that FLAG_SECURE prevents screen mirroring? – 임세준 Sep 16 '22 at 08:07
Did you read my answer entirely? – Cyril Sep 16 '22 at 12:33
I mean FLAG_SECURE do not prevents screen mirroring ? – 임세준 Sep 19 '22 at 06:31
Yes I tested it. It doesn't prevent screen mirroring. – Cyril Sep 19 '22 at 14:30
But in my case, it only shows black screen – 임세준 Sep 22 '22 at 02:03

How to disable screen mirroring?

1 Answers1