I am writing an app that displays images from url in a view. The idea is that when the view appears, image is dowloaded and it actualizes a UIImamgeView in the view.
I am using a Asyncrounse method in this way:
-(void)downloadASyncro:(NSString*)urlLink{
NSURL * imageURL = [NSURL URLWithString:urlLink];
[self downloadImageWithURL:imageURL completionBlock:^(BOOL succeeded, UIImage *image) {
if (succeeded) {
NSLog(@"scaricaImmagineASyncro Succeded= %@",image);
picView.image = image;
}
else {
//default image
picView.image = [UIImage imageNamed:@"icon_old.jpg"];
}
}];
}
the downloadImageWithURL method is:
- (void)downloadImageWithURL:(NSURL *)url completionBlock:(void (^)(BOOL succeeded, UIImage *image))completionBlock
{
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
if ( !error )
{
UIImage *image = [[UIImage alloc] initWithData:data];
completionBlock(YES,image);
} else{
completionBlock(NO,nil);
}
}];
}
When I call the method:
[self downloadASyncro:link];
and the operation sees end with success (NSLOG), picView.image = image; should actualize the view showing the image downloaded , should not it? But immage does not appear...
Any idea? Thanks in advance.
