Replace progressDialog by progressBar

[aoudiamoncef]

This class was deprecated in API level 26.
ProgressDialog is a modal dialog, which prevents the user from interacting with the app. Instead of using this class, you should use a progress indicator like ProgressBar, which can be embedded in your app's UI. Alternatively, you can use a notification to inform the user of the task's progress.

https://developer.android.com/reference/android/app/ProgressDialog