Hey everyone! A ProgressBar is basically a visual indicator of progress in some operation. Implementing a ProgressBar helps in the understanding of processes running on threads separate from the main User Interface (UI) and the communication between threads. As mentioned on the Android developer's page, a progress bar can also be made indeterminate. In indeterminate mode, the progress bar shows a cyclic animation without an indication of progress. This mode is used by applications when the length of the task is unknown.