title: Dismiss UIPickerView in iOS
body: <p>I'm trying to dismiss the UIPickerView by tapping UIBarButtonItem. So, I made an action and inside that action I call [PickerView removeFromSuperview]. But, It's not working.</p>
  
  <p>ViewController.h</p>
  
  <pre><code>#import &lt;UIKit/UIKit.h&gt;
  @interface ViewController : UIViewController&lt; UIPickerViewDelegate,UIPickerViewDataSource&gt;
  - (IBAction)dissmissPicker:(id)sender;
  @property (nonatomic,strong) NSArray *ColorName;
  
  @end
  </code></pre>
  
  <p>ViewController.m:</p>
  
  <pre><code>#import "ViewController.h"
  
  @implementation ViewController
  @synthesize ColorName;
  
  // returns the number of 'columns' to display.
  - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{
      return 1;
  }
  
  // returns the # of rows in each component..
  - (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{
  
      return [ColorName count];
  }
  -(NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{
  
      return [ColorName objectAtIndex:row];
  
      }
  - (void)didReceiveMemoryWarning
  {
      [super didReceiveMemoryWarning];
      // Release any cached data, images, etc that aren't in use.
  }
  
  #pragma mark - View lifecycle
  
  - (void)viewDidLoad
  {
  
      [super viewDidLoad];
      // Do any additional setup after loading the view, typically from a nib.
  
      ColorName = [[NSArray alloc]initWithObjects:@"Red",@"White",@"Yellow",@"Green",@"Blue",@"Black",@"Brown",@"Cyan",nil];
     // [pickerview removeFromSuperview];
  
  }
  - (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{
  
      UIColor *newColor;
  
      switch (row) {
          case 0:
              newColor = [UIColor redColor];
              break;
          case 1:
              newColor = [UIColor whiteColor];
              break;       
          case 2:
              newColor = [UIColor yellowColor];
              break;        
          case 3:
              newColor = [UIColor greenColor];
              break;            
          case 4:
              newColor = [UIColor blueColor];
              break;        
          case 5:
              newColor = [UIColor blackColor];
              break;     
          case 6:
              newColor = [UIColor brownColor];
              break;
          case 7:
              newColor =[UIColor cyanColor];
              break;
          default:
              newColor = [UIColor redColor];
              break;
      }
   self.view.backgroundColor = newColor;
  
  }
  - (void)viewDidUnload
  {
     // [self setShowColor:nil];
      [super viewDidUnload];
      // Release any retained subviews of the main view.
      // e.g. self.myOutlet = nil;
  }
  
  - (void)viewWillAppear:(BOOL)animated
  {
      [super viewWillAppear:animated];
  }
  
  - (void)viewDidAppear:(BOOL)animated
  {
      [super viewDidAppear:animated];
  }
  
  - (void)viewWillDisappear:(BOOL)animated
  {
      [super viewWillDisappear:animated];
  }
  
  - (void)viewDidDisappear:(BOOL)animated
  {
      [super viewDidDisappear:animated];
  }
  
  - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
  {
      // Return YES for supported orientations
      return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
  }
  
  - (IBAction)dissmissPicker:(id)sender {
  
  
      [pickerView removeFromSuperview];
  
  }
  </code></pre>