How to prevent android apps from screen-recording my android system

Question

While using Microsoft teams application on android, I decided to record the lecture using a screen recording application built-in within the system.

The screen recording application says that there is another screen recording application is running (see screenshot below). I closed teams and started my screen recording again and it worked!!.

Many other applications that provide a random video call with strangers also have the same problem.

So, my questions are:

• How to prevent any application from recording my android screen?
• How to let android tell me about any applications that record my screen?
• Are these applications spying on me?

screenshot

EDIT: I have checked other questions similar to this issue, but all is about using SECURE flag in the application code. Clearly, I want to prevent any application downloaded from Google Play to record my android screen.

Answer 1

try this getWindow().setFlags(LayoutParams.FLAG_SECURE, LayoutParams.FLAG_SECURE);