Suppose there is some window, or a dialog that occupies a part of the screen during some action.
And it is necessary either to allow the user to specify this dialog as a priority, or vice versa to allow the application to be used during its display.
Someone may say that when a dialog appears, the back layer will automatically disappear, in this case I want to remind you about an element like Bottom Sheet.
I did not find articles or detailed information on the focus on the Internet, that is, if we say the user should work specifically with one view at a given time, how is this achieved?