Segue 为空(黑色)，无法查看数据 [英] Segue is blank (black) , can't view the data

问题描述

(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"DetailPlacePage"]) {
    NSIndexPath *indexPath = [self.Allplace indexPathForSelectedRow];
    NomadPlaceDetailViewController *placedetailcontroller = segue.destinationViewController;
    placedetailcontroller.myDictionary = [self.placeArray objectAtIndex:indexPath.row];
  }
}

这是我用来为 UIviewcontroller 准备 segue 的代码.看不到下一个视图控制器，屏幕变黑，只显示导航栏.

This is the code I use to prepare segue for UIviewcontroller. Can't see the next view controller , screen gets blank and just navigation bar is shown .

推荐答案

尝试投射你的 NomadPlaceDetailViewController:

Try casting your NomadPlaceDetailViewController:

NomadPlaceDetailViewController *placedetailcontroller = (NomadPlaceDetailViewController *)segue.destinationViewController;

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