onSheetOpenChanged: {
    if(sheetOpen)
        camera.start()
    else
        camera.stop()
}

Thanks for this! I was searching for how to activate the camera only while an OverlaySheet is visible, and your approach works great. Had to modify it a bit: setting initial state `cameraState: Camera.UnloadedState` inside `Camera { }` and changing `OverlaySheet.onSheetOpenChanged` in l. 65 as follows: ``` onSheetOpenChanged: { if(sheetOpen) camera.start() else camera.stop() } ```