Add progress bar in navigation bar

Question

I am developing an iPhone app and want to show a file upload progress bar in the top navigation bar like the iPhone SMS message sending status bar. How can I do this?

Answer 1

Pretty easy, just get a reference to the UIView that you want to put in the bar, and call addSubview:

UIView progressBar = ...;
[navigationController.navigationBar addSubview:progressBar];
progressBar.frame = CGRectMake( ... ); // Position it