Objective C: Downloading File With Progress Bar [duplicate]

Answer 1

First of all you should be clear whether to make a synchronous call or asynchronous. For mobile apps or any other app asynchronous is preferred one.

Once you are clear use NSURLConnection class to fetch the data from the URL. Here is the good tutorial.

And for loading you can start progress while starting the request and stop it when you receive connection:didFailWithError: or connectionDidFinishLoading: delegate method.