嘿！您可以通过编程方式制作UIPickerView....

Hey! U can make UIPickerView programmatically....

InviewController.m文件

In- viewController.m file

- (void)viewDidLoad {
    [super viewDidLoad];
UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0,100,320, 500)];
    [self.view addSubview:pickerView];
    [pickerView setDelegate:self];
        [pickerView release];
}

- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView {

    return ; //give components here
}

- (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:(NSInteger)component {

    return ;   //give rows here
}

- (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {   return ;  // give titles }

- (void)pickerView:(UIPickerView *)thePickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
    //Do the step here
}

在您的viewController.h类中，永远不要忘记这样做

And in your viewController.h class never forgot to do this

@interface viewController : UIViewController <UIPickerViewDelegate>

希望这可能对您有帮助...更多帮助，请按照链接 ..

Hope this may help u.....for more help follow the link ..