UITableView - scroll to the top

Question

In my table view I have to scroll to the top. But I cannot guarantee that the first object is going to be section 0, row 0. May be that my table view will start from section

Answer 1

I had to add the multiply by -1 * to the sum of the status bar and the navigation bar, because it was going that height off the screen,

self.tableView.setContentOffset(CGPointMake(0 , -1 * 
  (self.navigationController!.navigationBar.height +  
  UIApplication.sharedApplication().statusBarFrame.height) ), animated:true)