why loading bars jump around instead of smoothly increasing percent?

Question

3%. 5%. 34%! 97%! 97… 98…

In: Technology

Answer 1

The easiest way to have a loading bar is based on updating the bar after a file loads.  However, the files have varying sizes.  The bar represents the total size of all the files to load, so as different sized files get loaded and then updated it jumps.