converting NSData to UIImage - working with NSURLRequest - objective-c

Question

I've been working with AFHTTPRequestOperationManager calling my service that return an image and my code looked like this:
NSString *baseURLString = #"http://get_image/";
#try {
AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager GET:baseURLString
parameters:nil
success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSString *imageStr = responseObject[0];
if([imageStr isKindOfClass:[NSNull class]]==NO)
{
NSData *imageData = [NSData dataWithBase64EncodedString:imageStr];
UIImage *image = [UIImage imageWithData:imageData];
self.myImage = (image==nil)? [UIImage imageNamed:#"noPhoto"]: image;
}
}
failure:^(AFHTTPRequestOperation *operation, NSError *error) {
self.myImage = [UIImage imageNamed:#"noPhoto"];
}];
}
#catch (NSException *exception) {
NSLog(#"exception %#", exception);
}
since AFHTTPRequestOperationManager is async and I need a sync call how can I complete this code to produce my image:
NSString *baseURLString = #"http://get_image/";
NSURLResponse *response;
NSError *error;
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:p_baseURLString] cachePolicy:NSURLRequestReturnCacheDataElseLoad timeoutInterval:30];
// Make synchronous request
NSData *imageRequest = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error];
???
UIImage *image = [UIImage imageWithData:imageData];
self.displayedApartment.exteriorImage = (image==nil)? [UIImage imageNamed:#"noPhoto"]: image;
This is what I've tried in place of ??? all resulted in image=nil
using the imageRequest data as is
converting the imageRequest to base64 with [[NSData alloc] initWithBase64EncodedData:imageRequest options:0];
converting it to string and back to NSData
NSData NSString *imageStr = [NSString stringWithUTF8String:[imageRequest bytes]];
NSData *imageData = [NSData dataWithBase64EncodedString:imageStr];

Answer 1

If I'm reading your code correctly, I think your variable names might be causing some trouble. Try replacing the following line:
NSData *imageRequest = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error];
with
NSData *imageData = [NSURLConnection sendSynchronousRequest:urlRequest returningResponse:&response error:&error];
and then see what UIImage *image = [UIImage imageWithData:imageData]; gives you. Unless there has been an error in the request, I can't see a reason why image wouldn't be properly instantiated unless it didn't represent an image object.

Answer 2

Why not just display the image using the AFNetworking function setImageWithURL, it takes the URL of an image and sets the UIImageView to that image. Its a much simpler way of doing things if you only need to display it.
It looks something like this:
[imageView setImageWithURL:[NSURL URLWithString:p_baseURLString]];
In the header file you'll have something like this:
#property (weak, nonatomic) IBOutlet UIImageView *imageView;
Its much faster as well.