postFrameCallbackStandardDelay constant Null safety

int const postFrameCallbackStandardDelay

If the camera is being closed (when stoppingCamera == true) and this Widget is visible again, we add a post frame callback to detect if the Widget is still visible

If the time took by the "post frame callback" is less than this duration, we considered, that the camera should be reinitialized

On a 60Hz display, one frame =~ 16 ms => 100 ms =~ 6 frames.

Implementation

static const int postFrameCallbackStandardDelay = 100;