I am totally newbie in Unity. I have some pop-up windows in my 2d project. I want "block" rest of screen if pop up window is active. How i can achive this? I am working with android.
Welcome new user, it's actually pretty simple.
if you are used to programming ios or android, it's different, you simply do it "manually".
All you do is ...
in your UI
make a new panel which is full screen, name it "gray cover" or such
make it 90% alpha and black
in fact simply put your popups on top of that
when you want one of your popups to appear, just turn on the gray cover and whichever popup/message you want
Enjoy