Has this changed on Android in recent years? I remember building a Camera app with a smaller-than-fullscreen viewfinder. I believe I got to set the dimensions o

Has this changed on Android in recent years? I remember building a Camera app with a smaller-than-fullscreen viewfinder. I believe I got to set the dimensions of the viewfinder myself, making it as arbitrarily small as I wanted (or even optional?). Perhaps I remember incorrectly. I wonder if things changed.