Is it possible to use UIGraphicsBeginImageContext from connectionDidFinishLoading? - iphone

Question

I got these errors when the code below is executed:
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[Switching to process 74682 thread 0x207]
[Switching to process 74682 thread 0x720f]
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- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
UIImage = [[UIImage alloc] initWithData:self.resp_data;
CGSize itemSize = CGSizeMake(150);
UIGraphicsBeginImageContext(itemSize);
CGRect image_rect = CGRectMake(0.0,0.0,itemSize.width,itemSize.height);
[image drawInRect:image_rect];
self.image_view.image = UIGraphicsGetImageFromCurrentImageContext(); // image_view ivar is connected to a UIImageView in the View associated to this controller
self.resp_data = nil;
self.imageConnection = nil;
[image release];
}
Any idea what could be the issue and how to solve it ? (and of course the expected image does not show up)
Thx for helping,
Stephane

Answer 1

TESTED CODE:100% WORKS
#define kAppIconHeight 48
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
// Set appIcon and clear temporary data/image
UIImage *image = [[UIImage alloc] initWithData:self.resp_data];
if (image.size.width != kAppIconHeight && image.size.height != kAppIconHeight)
{
CGSize itemSize = CGSizeMake(kAppIconHeight, kAppIconHeight);
UIGraphicsBeginImageContext(itemSize);
CGRect imageRect = CGRectMake(0.0, 0.0, itemSize.width, itemSize.height);
[image drawInRect:imageRect];
self.image_view.image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
}
else
{
self.image_view.image = image;
}
self.resp_data = nil;
[image release];
// Release the connection now that it's finished
//self.imageConnection = nil;
// call our delegate and tell it that our icon is ready for display
// [delegate appImageDidLoad:self.indexPathInTableView];
}