[英]Parse.com image gallery open image detail view
I haven't been programming for very long and I am trying to create a simple image gallery using Parse.com, I have followed this tutorial https://www.parse.com/tutorials/saving-images but using storyboards instead of nibs. 我已经很长时间没有编程了,所以我试图使用Parse.com创建一个简单的图像库,我按照本教程https://www.parse.com/tutorials/saving-images进行操作,但是使用情节提要而不是笔尖。
I managed to got most of it working but I'm stuck at the last hurdle, when it comes to opening the selected image full size in a new view. 我设法使其大部分工作正常,但在新视图中以全尺寸打开所选图像时,我遇到了最后一个障碍。 Following other answers given around the web I have tried to pass the image to the detail view in
- (void)prepareForSegue:
but I'm still having no luck. 在网上给出了其他答案之后,我尝试将图像传递到
- (void)prepareForSegue:
的详细信息视图- (void)prepareForSegue:
但是我仍然没有运气。
My code in ViewController.h currently looks like this 我在ViewController.h中的代码当前看起来像这样
- (void)buttonTouched:(id)sender {
PFObject *theObject = (PFObject *)[allImages objectAtIndex:[sender tag]];
PFFile *theImage = [theObject objectForKey:@"imageFile"];
NSData *imageData;
imageData = [theImage getData];
selectedPhoto = [UIImage imageWithData:imageData];
[self performSegueWithIdentifier:@"goGo" sender:self];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if([[segue identifier] isEqualToString:@"goGo"]) {
PhotoDetailViewController *pdvc = [[PhotoDetailViewController alloc] init];
pdvc.selectedImage = selectedPhoto;
}
}
and in DetailViewController.h 并在DetailViewController.h中
- (void)setDetailImage {
self.photoImageView.image = selectedImage;
}
When it comes to loading the image the view opens blank, any help on this would be a massive help. 在加载图像时,视图将打开空白,对此的任何帮助将是巨大的帮助。 If it makes it easier I can upload the project.
如果它更容易,我可以上传项目。
Thanks in advance, Chris 预先感谢克里斯
Your actual prepareForSegue
statements does nothing : you're initializing selectedImage
to a totally new PhotoDetailViewController
but not the one which will be presenting. 您实际的
prepareForSegue
语句不执行任何操作:您正在将selectedImage
初始化为一个全新的PhotoDetailViewController
而不是将要显示的那个。
Try to replace 尝试更换
PhotoDetailViewController *pdvc = [[PhotoDetailViewController alloc] init];
by 通过
PhotoDetailViewController *pdvc = (PhotoDetailViewController *)segue.destinationController;
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