Freezing Demo App for visualization UI Thread on iOS.
Toggle Non-Blocking or Blocking processing at the head switch button.
Touch the Push Me! Button, then the globe icon change the progress indicator, and after the end of processing, return the globe icon.
Simulator.Screen.Recording.-.iPhone.14.-.2022-10-25.at.00.17.41.mp4
Touch the Push Me! Button, but nothing change on the display... we can not know when the process is finished.