title: UIPickerView is not showing anything
body: <p>I implemented a simple label and UIPickerView in Xcode 5 for iOS 7. I used the code from the following website. Everything seems to be correct. Not sure why it's not working.</p>
  
  <p><a href="http://www.youtube.com/watch?v=CIhqiuG8p1k" rel="nofollow">http://www.youtube.com/watch?v=CIhqiuG8p1k</a></p>
  
  <pre><code>#import &lt;UIKit/UIKit.h&gt;
  
  @interface ViewController : UIViewController {
      IBOutlet UILabel *label;
      IBOutlet UIPickerView *Picker;
      NSArray *PickerData;
  }
  
  @property (retain, nonatomic) IBOutlet UIPickerView *Picker;
  @property (retain, nonatomic) NSArray *PickerData;
  @end
  
  
  #import "ViewController.h"
  
  @interface ViewController ()
  
  @end
  
  @implementation ViewController
  @synthesize Picker,PickerData;
  
  - (void)viewDidLoad
  {
      [super viewDidLoad];
      // Do any additional setup after loading the view, typically from a nib.
      NSArray *array = [[NSArray alloc] initWithObjects:@"One",@"Two",@"Three",@"Four", nil];
      self.PickerData = array;
  }
  
  - (void)didReceiveMemoryWarning
  {
      [super didReceiveMemoryWarning];
      // Dispose of any resources that can be recreated.
  }
  
  -(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView {
      return 1;
  }
  
  -(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:    (NSInteger)component {
      return [PickerData count];
  }
  
  -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row  forComponent:(NSInteger)component {
      return [self.PickerData objectAtIndex:row];
  }
  
  -(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:  (NSInteger)component {
      int select = row;
      if (select == 0) {
          label.text = @"One Is Selected";
      } else if (select == 1) {
          label.text = @"Two Is Selected";
      } else if (select == 2) {
          label.text = @"Three Is Selected";
      } else if (select == 3) {
          label.text = @"Four Is Selected";
      }
  }
  
  @end
  </code></pre>