title: issue of hide uipickerview in iphone
body: <p><img src="https://i.stack.imgur.com/4sGWx.png" alt="enter image description here"></p>
  
  <p>I want to display UIPickerView with UIToolBar on the top of pickerView with done and cancel button.Attached is the screen shot for the same.I also have tab bar controller in bottom side of view and I want to display pickerView over bottom bar thats why I am using uipickerView inside of actionsheet.Now my issue is how to dismiss that pickerView on cancelButton click which is added in UIActionSheet?</p>
  
  <p>Following is the function to display pickerView :</p>
  
  <pre><code>-(IBAction)setMile:(id)sender
     {
        menu = [[UIActionSheet alloc] initWithTitle:nil
                                                    delegate:self
                                           cancelButtonTitle:nil
                                      destructiveButtonTitle:nil
                                           otherButtonTitles:nil];
      // Add the picker
      UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0,55,0,0)];
      pickerView.delegate = self;
  pickerView.showsSelectionIndicator = YES;    // note this is default to NO
  
  UIToolbar *pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,320,44)];
  pickerToolbar.barStyle = UIBarStyleBlackOpaque;
  [pickerToolbar sizeToFit];
  
  NSMutableArray *barItems = [[NSMutableArray alloc] init];
  
  
  UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(setMileCancel:)];
  [barItems addObject:cancelBtn];
  [cancelBtn release];
  cancelBtn=nil;
  
  UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
  [barItems addObject:flexSpace];
  [flexSpace release];
  flexSpace=nil;
  
  UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(setMileDone:)];
  [barItems addObject:doneBtn];
  [doneBtn release];
  doneBtn=nil;
  
  
  [pickerToolbar setItems:barItems animated:YES];
  [barItems release];
  barItems=nil;
  
  [menu addSubview:pickerToolbar];
  [menu addSubview:pickerView];
  [menu showInView:self.view];
  //[menu showFromTabBar:[[self tabBarController] tabBar]];  this code is not working
  [menu setBounds:CGRectMake(0,0,320, 545)];
  [pickerView release];
  [menu release];
  pickerView=nil;
  menu=nil;
  }
  </code></pre>
  
  <p>I have following code on cancel button click</p>
  
  <pre><code>-(IBAction)setMileCancel:(id)sender
   {
     //[menu removeFromSuperview];
     [menu dismissWithClickedButtonIndex:0 animated:YES];
   }
  </code></pre>