I have now implemented tap-to-focus in my preview! Implementing this came with many bugs, mainly in handling tap-to-focus on fixed-focus devices and in creating the fade-in/out animation. There were also a couple of bugs in the preview that were much harder to fix, which varied across phones (I am testing on the Samsung S24 Ultra, Pixel 10 Pro XL, and Pixel 7 Pro, with the Pixel phones being the primary ones). These bugs were mainly the screen disappearing occasionally and not being able to click on a Logical Camera to see the underlying physical camera when there were no Physical Cameras within the Logical Camera.