1

这正是我想要做的。

向导视图控制器.m

- (IBAction)onCountryClick:(id)sender {
    MJDetailViewController *detailViewController = [[MJDetailViewController alloc] initWithNibName:@"MJDetailViewController" bundle:nil];
    [self presentPopupViewController:detailViewController animationType:MJPopupViewAnimationSlideLeftRight];
}

用户单击国家按钮，弹出列表显示。

当用户选择一个行按钮标题应该改变。

这是我的详细视图，

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath     *)indexPath {

    WizardViewController *mj = [[WizardViewController alloc]       initWithNibName:@"WizardViewController" bundle:nil];
    mj.countryselected = [countryNames objectAtIndex:indexPath.row];
    [mj.countryButton setTitle:mj.countryselected forState:UIControlStateNormal];
    [self dismissPopupViewControllerWithanimationType:MJPopupViewAnimationFade];
}

DetailViewController正在解雇，但countryButtonTitle没有更新。我知道这是因为向导视图不刷新。我想知道在这种情况下正确的解决方法。

希望这有助于获得更好的答案。

4

1 回答 1

2

制定协议MJDetailViewController

@protocol MJDetailViewControllerDelegate;
@interface MJDetailViewController : UIViewController
@property (nonatomic,assign) id< MJDetailViewControllerDelegate> delegate;
@end


@protocol MJDetailViewControllerDelegate <NSObject>

- (void)selectedContry:(NSString *)title;

@end

并打电话给

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath     *)indexPath {

    NSString *title = [countryNames objectAtIndex:indexPath.row];
       if ([self.delegate respondsToSelector:@selector(selectedContry:)]) {
            [self.delegate selectedContry:title];
        }
    [self dismissPopupViewControllerWithanimationType:MJPopupViewAnimationFade];
}

添加MJDetailViewControllerDelegate为) protocol_WizardViewController.h

现在实现selectedContry:方法WizardViewController.m如下：

- (void)selectedContry:(NSString *)title
{
    [self.countryButton setTitle:title forState:UIControlStateNormal];
}

希望它可以帮助你。

于 2013-04-08T04:49:23.530 回答