- (void)viewDidLoad {
    [super viewDidLoad];
   
    dataArray = @[@"摩羯座",@"水瓶座",@"雙魚座",@"牧羊座",@"金牛座",@"雙子座",@"巨蟹座",@"獅子座",@"處女座",@"天秤座",@"天蝎座",@"射手座"];
    _pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 300)];
    _pickerView.delegate = self;
    _pickerView.dataSource = self;
    _pickerView.backgroundColor = [UIColor lightGrayColor];
    [self.view addSubview:_pickerView];
}

- (NSInteger) numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    return 1;
}

- (NSInteger) pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    return dataArray.count;
}

- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
    return dataArray[row];
}

- (void) pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
    NSString *selectedData = [dataArray objectAtIndex:row];
   
    NSLog(@"%@",selectedData);
   
}