Ios6 我有一个UICollectionView，我想在一个单元格中显示一个图像，它将转到普通的ViewController。我该怎么做？

我有一个带有导航控制器的UICollectionViewController，我想在单元格中显示一个图像，该图像“推送”到一个普通的ViewController，每个图像都不同。我该怎么做？

您似乎想通过UICollectionView建立照片库。 如果使用故事板，请使用segue

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([[segue identifier] isEqualToString:@"showDetail"])
    {
        NSIndexPath *selectedIndexPath = [[self.collectionView indexPathsForSelectedItems] objectAtIndex:0];

        // load the image, to prevent it from being cached we use 'initWithContentsOfFile'
        NSString *imageNameToLoad = [NSString stringWithFormat:@"%d_full", selectedIndexPath.row];
        NSString *pathToImage = [[NSBundle mainBundle] pathForResource:imageNameToLoad ofType:@"JPG"];
        UIImage *image = [[UIImage alloc] initWithContentsOfFile:pathToImage];

        DetailViewController *detailViewController = [segue destinationViewController];
        detailViewController.image = image;
    }
}

如果在didSelectItemAtIndexPath中使用nib:in，则使用self.navigationController推送

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
    NSString *imageNameToLoad = [NSString stringWithFormat:@"%d_full", indexPath.row];
    NSString *pathToImage = [[NSBundle mainBundle] pathForResource:imageNameToLoad ofType:@"JPG"];
    UIImage *image = [[UIImage alloc] initWithContentsOfFile:pathToImage];
    DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil];
    detailViewController.image = image;
    [self.navigationController pushViewController:detailViewController animated:YES];
}

来自Apple的示例代码：

---

CollecionView教程：

似乎您希望通过UICollectionView构建照片库。 如果使用故事板，请使用segue

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([[segue identifier] isEqualToString:@"showDetail"])
    {
        NSIndexPath *selectedIndexPath = [[self.collectionView indexPathsForSelectedItems] objectAtIndex:0];

        // load the image, to prevent it from being cached we use 'initWithContentsOfFile'
        NSString *imageNameToLoad = [NSString stringWithFormat:@"%d_full", selectedIndexPath.row];
        NSString *pathToImage = [[NSBundle mainBundle] pathForResource:imageNameToLoad ofType:@"JPG"];
        UIImage *image = [[UIImage alloc] initWithContentsOfFile:pathToImage];

        DetailViewController *detailViewController = [segue destinationViewController];
        detailViewController.image = image;
    }
}

如果在didSelectItemAtIndexPath中使用nib:in，则使用self.navigationController推送

-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath{
    NSString *imageNameToLoad = [NSString stringWithFormat:@"%d_full", indexPath.row];
    NSString *pathToImage = [[NSBundle mainBundle] pathForResource:imageNameToLoad ofType:@"JPG"];
    UIImage *image = [[UIImage alloc] initWithContentsOfFile:pathToImage];
    DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"DetailViewController" bundle:nil];
    detailViewController.image = image;
    [self.navigationController pushViewController:detailViewController animated:YES];
}

来自Apple的示例代码：

CollecionView教程：