UISegmentedViewController cutting off view - ios

Question

I am running into a weird problem. I am using a UISegmentedControl to switch between two views. When the UISegmentedViewController comes on screen, the default view(view1) is loaded.View1 looks exactly as it should, but when I click the UISegmentedControl to change views, view2 does not look properly and is cut off. When I switch back to view1 now it also exhibits the same behavior. I am attaching the code I am using for this UISegmentedViewController below - I found it in a SO post. I will attach pictures for clarity:
Edit: Also, the last tableview cell in the Courses section cannot be properly scrolled to. Why is the view getting cut off?
Code:
//
// PCFSegmentedRateViewController.m
// Purdue Course Sniper
//
// Created by Kamran Pirwani on 2/5/13.
// Copyright (c) 2013 Kamran Pirwani. All rights reserved.
//
#import "PCFSegmentedRateViewController.h"
#interface PCFSegmentedRateViewController ()
// Array of view controllers to switch between
#property (nonatomic, copy) NSArray *allViewControllers;
// Currently selected view controller
#property (nonatomic, strong) UIViewController *currentViewController;
#end
#implementation PCFSegmentedRateViewController
#synthesize classRating,professorRating,segmentedControl;
- (void)viewDidLoad
{
[super viewDidLoad];
[segmentedControl addTarget:self action:#selector(indexDidChangeForSegmentedControl:) forControlEvents:UIControlEventValueChanged];
classRating = [[self storyboard] instantiateViewControllerWithIdentifier:#"ClassRate"];
professorRating = [[self storyboard] instantiateViewControllerWithIdentifier:#"Professor"];
// Add A and B view controllers to the array
self.allViewControllers = [[NSArray alloc] initWithObjects:classRating, professorRating, nil];
[self cycleFromViewController:self.currentViewController toViewController:[self.allViewControllers objectAtIndex:self.segmentedControl.selectedSegmentIndex]];
}
#pragma mark - View controller switching and saving
- (void)cycleFromViewController:(UIViewController*)oldVC toViewController:(UIViewController*)newVC {
// Do nothing if we are attempting to swap to the same view controller
if (newVC == oldVC) return;
// Check the newVC is non-nil otherwise expect a crash: NSInvalidArgumentException
if (newVC) {
// Set the new view controller frame (in this case to be the size of the available screen bounds)
// Calulate any other frame animations here (e.g. for the oldVC)
newVC.view.frame = CGRectMake(CGRectGetMinX(self.view.bounds), CGRectGetMinY(self.view.bounds), CGRectGetWidth(self.view.bounds), CGRectGetHeight(self.view.bounds));
// Check the oldVC is non-nil otherwise expect a crash: NSInvalidArgumentException
if (oldVC) {
// Start both the view controller transitions
[oldVC willMoveToParentViewController:nil];
[self addChildViewController:newVC];
// Swap the view controllers
// No frame animations in this code but these would go in the animations block
[self transitionFromViewController:oldVC
toViewController:newVC
duration:0.25
options:UIViewAnimationOptionLayoutSubviews
animations:^{}
completion:^(BOOL finished) {
// Finish both the view controller transitions
[oldVC removeFromParentViewController];
[newVC didMoveToParentViewController:self];
// Store a reference to the current controller
self.currentViewController = newVC;
}];
} else {
// Otherwise we are adding a view controller for the first time
// Start the view controller transition
[self addChildViewController:newVC];
// Add the new view controller view to the ciew hierarchy
[self.view addSubview:newVC.view];
// End the view controller transition
[newVC didMoveToParentViewController:self];
// Store a reference to the current controller
self.currentViewController = newVC;
}
}
}
- (IBAction)indexDidChangeForSegmentedControl:(UISegmentedControl *)sender {
NSUInteger index = sender.selectedSegmentIndex;
if (UISegmentedControlNoSegment != index) {
UIViewController *incomingViewController = [self.allViewControllers objectAtIndex:index];
[self cycleFromViewController:self.currentViewController toViewController:incomingViewController];
}
}
#end