Android media scanner problem


I am downloading an image inside a folder in root. I can see it in folder browser but I can not see my downloaded image in Gallery. I know that, Android should make a Media Scan.

But I don’t know how to trigger Media Scanner and how to send a broadcast command to system…

I found some old plugins named MediaScanner etc. but not working anymore… I need a ngCordova or ionic Native plugin…

Is there anyone who solve that problem.