Use APKPure App
Get Camera On Top old version APK for Android
Fotocamera su altre app, registra video e scatta foto.
Display camera over other apps.
Record video and take photo while using other apps.
Easy to use, no setup required.
SD Card storage support.
File Explorer
NOTE: For the android M or above, manual user permission approval required to run app. (see demo video for details.)
For more information, please visit developer's web site.
http://www.busywww.com