PickerView in ios

_pickerData = @[@"Item 1", @"Item 2", @"Item 3", @"Item 4", @"Item 5", @"Item 6"];

  picker=[[UIPickerView alloc]initWithFrame:CGRectMake(0, 200, self.view.frame.size.width, 200)];
    picker.dataSource = self;
    picker.delegate = self;
    [self.view addSubview:picker];

// The number of columns of data
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    return 1;
}

// The number of rows of data
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    return _pickerData.count;
}

// The data to return for the row and component (column) that's being passed in
- (NSString*)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
    return _pickerData[row];
}

- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
  //  [picker removeFromSuperview];


//array object at index row will get the selected value from array
}