Yesterday I found what I have been looking for for my Galaxy S7 phone!
It named SideSync. You can find on here.
“Using SideSync, you can conveniently share the screen and data between your PC and mobile device. Receive alarms of your phone through PC and use various features of your phone on the computer. Enjoy the smarter and more convenient life with SideSync.”
It works both Mac or Pc.
You can easily transfer files between phone and pc via Wi-Fi. Now you can use all android applications on your phone snapchat, instagram etc… fully functional fro your computer.