UITableview reloaddata with animation

To add to the correct answer, if you want to reload all sections in your UITableView you will need to do the following:

ObjC

NSRange range = NSMakeRange(0, [self numberOfSectionsInTableView:self.tableView]);
NSIndexSet *sections = [NSIndexSet indexSetWithIndexesInRange:range];
[self.tableView reloadSections:sections withRowAnimation:UITableViewRowAnimationAutomatic];

Swift

let range = NSMakeRange(0, self.tableView.numberOfSections)  
let sections = NSIndexSet(indexesIn: range)               
self.tableView.reloadSections(sections as IndexSet, with: .automatic) 

This will reload everything in the table view with an animation. Like a boss.