It depends on the android version you have and (most likely) on whether you have the latest security patches or not.
Usually, when
any app is attempting to record your screen (including malware), this warning should pop up on your Android device:
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2F4AWFhmB.png&t=665&c=tN6YzKiIeJJgEw)
Unless of course there is a vulnerability that bypasses this warning, which is unlikely that it'd be used to steal your Electrum seed. Or you'd know about it weeks after it was patched anyways.
This is on Android 7.1.2 Nougat, I am not sure about previous versions.