NSArray Image doesn't show in ScrollView - ios

Question

NSArray image have:
2012-08-15 10:12:39.687 test[4200:11103] (
"http://192.168.1.165/Images/Demo/1.jpg",
"http://192.168.1.165/Images/Demo/0.jpg",
"http://192.168.1.165/Images/Demo/0.jpg",
"http://192.168.1.165/Images/Demo/2.jpg",
"http://192.168.1.165/Images/Demo/2.jpg",
"http://192.168.1.165/Images/Demo/2.jpg",
"http://192.168.1.165/Images/Demo/2.jpg",
"http://192.168.1.165/Images/Demo/1.jpg",
"http://192.168.1.165/Images/Demo/1.jpg",
"http://192.168.1.165/Images/Demo/1.jpg" )
And code .m:
dispatch_async(htvque, ^{
NSData* data = [NSData dataWithContentsOfURL: tophotfilm];
NSError* error;
json = [NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&error];
NSDictionary *list = [json objectForKey:#"List"];
NSMutableArray *arrPoster =[[NSMutableArray alloc]init];
for(NSString *po in list)
{
NSString *poster = [po valueForKey:#"Poster"];
[arrPoster addObject:poster];
}
myArray = [NSArray arrayWithArray:arrPoster];
NSArray *colors = [[NSArray alloc] initWithObjects:[UIColor redColor],
[UIColor greenColor], [UIColor magentaColor],
[UIColor blueColor], [UIColor orangeColor],
[UIColor brownColor], [UIColor grayColor], nil];
//NSLog(#"%#",colors);
NSLog(#"%#",myArray);
for (int i = 0; i < myArray.count; i++) {
//NSLog(#"%#",myArray.count);
NSString *imageName = [NSString stringWithFormat:#"%#", i];
UIImage *image = [UIImage imageNamed:imageName];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CGRect rect = imageView.frame;
rect.origin.x = self.scrollView.frame.size.width * i;
rect.origin.y = 0;
rect.size = scrollView.frame.size;
[self.scrollView addSubview:imageView];
}
scrollView.pagingEnabled = YES;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator = NO;
scrollView.contentSize = CGSizeMake(scrollView.frame.size.width *
myArray.count,scrollView.frame.size.height);
pageControl.currentPage = 0;
pageControl.numberOfPages = myArray.count;
[super viewDidLoad];
});
With NSArray colors, it's working ok, but NSArray image has some error.
scrollview don't display listimage, it show first image, anybody know why...
dispatch_async(dispatch_get_main_queue(), ^{
for (int i = 0; i < myArray.count; i++)
{
//NSString *imageName = [NSString stringWithFormat:#"%#",[myArray objectAtIndex:i]];
NSURL *urlImage = [NSURL URLWithString:[NSString stringWithFormat:#"%#",[myArray objectAtIndex:i]]];
//NSLog(#"%#",urlImage);
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:urlImage]];
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
CGRect rect = imageView.frame;
rect.size.height = imgHeight;
rect.size.width = imgWidth;
imageView.frame = rect;
imageView.tag = i;
//rect.size = scrollView.frame.size;
[scrollView addSubview:imageView];
}
scrollView.pagingEnabled = YES;
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator = NO;
scrollView.contentSize = CGSizeMake(scrollView.frame.size.width *
myArray.count,scrollView.frame.size.height);
pageControl.currentPage = 0;
pageControl.numberOfPages = myArray.count;
});

Answer 1

Check this line of code
NSString *imageName = [NSString stringWithFormat:#"%#", i];
You image name would be just 1, 2 etc., not the image names printed in the log,
It should be something like
[myArray objectATIndex:i];

Answer 2

You are using imageNamed: which can only be used for images inside your project, and if I understood your question you are trying to access them from a server. Try this UIImage method: imageWithData:
NSURL *url = [NSURL URLWithString:[myArray objectAtIndex:i]];
UIImage *img = [UIImage imageWithData:[NSData dataWithContentsOfURL:url]];