ios - 将数据从 didSelectRowAtIndexPath 传递到另一个 View Controller ios7

Question

我正在尝试实现一个幻灯片菜单，当您选择一个选项时，它会向第二个 View Controller 发送一个变量值，该 Controller 具有来自解析的查询，该查询将根据幻灯片菜单中的选定值进行更新。

我如何将变量从 didSelectRowAtIndexPath 传递到另一个 View Controller

菜单 View Controller .h

@property (strong, nonatomic)NSString *passVariable;

菜单 View Controller .m

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

NSString *identifier = [NSString stringWithFormat:@"%@", [self.menu objectAtIndex:indexPath.row]];

UIViewController *newTopViewController = [self.storyboard instantiateViewControllerWithIdentifier:identifier];
    _passVariable = @"FieldName";


[self.slidingViewController anchorTopViewOffScreenTo:ECRight animations:nil onComplete:^{
    CGRect frame = self.slidingViewController.topViewController.view.frame;
    self.slidingViewController.topViewController = newTopViewController;
    self.slidingViewController.topViewController.view.frame = frame;
    [self.slidingViewController resetTopView];
}];

}

第二 View Controller .m

   NSString *vName = MenuViewViewController.passVariable;

尝试了上述方法，但 passVariable 在 secondViewController.m 中不起作用

Answer 1

您想将对象“推送”到下一个 View Controller ，而不是从前一个 View Controller 中拉出它们。

创建 @property (copy, nonatomic) NSString *fieldName;在您的 SecondViewController 中并使用它:

SecondViewController *newTopViewController = [self.storyboard instantiateViewControllerWithIdentifier:identifier];
newTopViewController.fieldName = @"FieldName";