UITableViewCell not showing image downloaded from server - ios

Question

I have table that is a byproduct of “Search Bar and Search Display Controller” for which the UITableViewCell is custom made from xib. Below is the code for the Cell. I am not able to spot why the image is not showing. Will someone please help me troubleshoot? All the other data are showing, except the content of the imageView.
.h
#import <UIKit/UIKit.h>
#interface BCDDogSearchTableViewCell : UITableViewCell
#property (strong, nonatomic) IBOutlet UIImageView *dogImageView;
#property (strong, nonatomic) IBOutlet UITextView *dogDescriptionView;
#property(strong,nonatomic) NSString *imageURL;
#end
.m
#import "BCDDogTableViewCell.h"
#import "FICImageCache.h"
#interface BCDDogTableViewCell()
#property(strong,nonatomic) UIImage *image;
#end
#implementation BCDDogTableViewCell
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
// Initialization code
}
return self;
}
- (void)awakeFromNib
{
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
-(void)setImageURL:(NSString *)imageURL
{
_imageURL=imageURL;
[self startDownloadingImage];
}
-(void)startDownloadingImage
{
self.image=nil;
if (self.imageURL) {
NSLog(#"The imageURL is %#",self.imageURL);
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:self.imageURL]];
NSURLSessionConfiguration *config=[NSURLSessionConfiguration ephemeralSessionConfiguration];
NSURLSession *session = [NSURLSession sessionWithConfiguration:config];
NSURLSessionDownloadTask *task =
[session downloadTaskWithRequest:request
completionHandler:^(NSURL *localfile, NSURLResponse *response, NSError *error) {
if (!error) {
if ([request.URL isEqual:self.imageURL]) {//check in case things have changed somehow
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:localfile]];
dispatch_async(dispatch_get_main_queue(), ^{self.image=image;});//ui thread.
}
}else NSLog(#"loading image error: %#",error);
}];
[task resume];
}
}
-(void)setImage:(UIImage *)image
{
NSLog(#"set image to the image view");
self.dogImageView.image=image;
}
-(UIImage *)image
{
NSLog(#"get image from imageView");
return self.dogImageView.image;
}
-(UIImageView *) dogImageView
{
if (!_dogImageView) _dogImageView=[[UIImageView alloc]init];
return _dogImageView;
}
#end
UPDATE
I added more logging to the following snippet
if (!error) {
NSLog(#"Completion block before if");
if ([request.URL isEqual:self.imageURL]) {//check in case things have changed somehow
UIImage *image = [UIImage imageWithData:[NSData dataWithContentsOfURL:localfile]];
dispatch_async(dispatch_get_main_queue(), ^{self.image=image;});//ui thread.
}else{
NSLog(#"request url %#",request.URL);
NSLog(#"self url %#", self.imageURL);
}
}else NSLog(#"loading image error: %#",error);
And based on the logging, if ([request.URL isEqual:self.imageURL]) keeps returning false although the two urls printed in the else clause are equal in content.
So I removed that if check and suddenly the image is showing. But I am afraid it's only working because I have one row in my table. So does anyone know why the check is failing while clearly it is the same url inside?

Answer 1

I find the problem, in my if statement I was comparing a url with a string.
if ([request.URL isEqual:self.imageURL])
Thanks to everyone for helping.