Yes, I have Smart View in my phone's drop down menu. It can't screen mirror anything to TV.
Return back to original problem. Chromecast is the only way to cast to TV.
Chromecast is no longer supported by Smart View, due to some Google changes. However, you should be able to connect your phone to the TV using the Google Home app.
Well the problem is not that I could not connect media to Chromecast.
The problem is wroted down to topic. When phone is locked the Chromecast controllers are not working.
Media plays on TV. Phones screen is locked. One applications controls work (play/pause). Others applications won't work.
On Samsung J5 they worked. Why Samsung development goes wrong.
My bad @Paskapuhelin Can I ask what app are you using to do this and if you have checked the settings to see if there is an option to enable the controllers on the lock screen? Is this happening with all the content and apps?