I am testing one of the iOS apps that has In App Purchase in it. When I tap for In App purchase then it ask me for credentials and opens a dialog box to enter credentials but at the same time an activity indicator keeps running in the background just below the Dialog box.
So my question here is 'Is it an expected behavior to show activity indicator in the background while entering credentials?'
I have checked a couple of apps on App store those show different behaviors. One of the apps 'ClickSend' shows an activity indicator in background while other app 'The Third Ear' does not show any activity indicator. Can you please help me on this? It would be good if you can provide any doc or URL for this that I can share with my developer team.