Segue is blank (black) , can't view the data

问题

(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];
  }
}

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 .

回答1:

Try casting your NomadPlaceDetailViewController:

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

来源：https://stackoverflow.com/questions/19789023/segue-is-blank-black-cant-view-the-data