如何通过标记与控制器交互

Question

我的视图中有很多不同的控制器，我有一些像以下代码创建的pickerview：

UIPickerView *picker = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 243, 320, 216)];
switch (sender.tag){
    case 0:
        picker.tag = 0;
        break;
    case 1:
        picker.tag = 1;
        break;
    case 2:
        picker.tag = 2;
        break;
    case 3:
        picker.tag = 3;
        break;
}

picker.delegate=self;
picker.dataSource = self;
picker.showsSelectionIndicator = YES;
[self.view addSubview:picker];

现在我需要使用默认设置（viewdidload）。我怎么能用标签做到这一点？

Answer 1

UIPickerView *picker = [self.view viewWithTag:X];
[picker adjustIt];