UICollectionView的可见接口没有声明选择器indexPathForSelectedRow

Question

我正在尝试将我在Table View Controller上的代码更改为Collection View Controller,现在我正试图让Segue工作,但是我收到了这个错误:

'UICollectionView'没有可见的@interface声明选择器'indexPathForSelectedRow'

这是我的Segue:

- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    if ( [segue.identifier isEqualToString:@"showUpcomingRelease"]){
        UpcomingReleaseViewController *upcomingReleaseViewController = (UpcomingReleaseViewController *)[segue destinationViewController];
        upcomingReleaseViewController.singleRelease = [self.upcomingReleases objectAtIndex:[[self.collectionView indexPathForSelectedRow] row]];
    }
}

谢谢.

Answer 1

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([[segue identifier] isEqualToString:@"showUpcomingRelease"])
    {
        NSIndexPath *selectedIndexPath = [[self.collectionView indexPathsForSelectedItems] objectAtIndex:0];
        UpcomingReleaseViewController *upcomingReleaseViewController = [segue destinationViewController];
        upcomingReleaseViewController.singleRelease = self.upcomingReleases[selectedIndexPath.row];
    }
}