Handling Data Object in UITableViewCell - ios

Question

I would like to move everything in between the two lines into detailCell.m so that the only code in cellForRowAtIndexPath are the remaining three lines. What is the most effective way to do this? Thank you.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
DetailCell *cell = [tableView dequeueReusableCellWithIdentifier:#"DetailCell" forIndexPath:indexPath];
Job *aJob = self.jobs[indexPath.row];
_______________
[cell.titleLabel setText:aJob.title];
[cell.companyLabel setText:aJob.company];
if (aJob.logo != (NSString *)[NSNull null]) {
[cell.logoImageView setImageWithURL:[NSURL URLWithString:aJob.logo] placeholderImage:[UIImage imageNamed:#"placeholder.jpg"]];
}
else {
[cell.logoImageView setImage:[UIImage imageNamed:#"placeholder.jpg"]];
}
_________________
return cell;
}
Here is DetailCell.h. DetailCell.m is currently empty.
#interface DetailCell : UITableViewCell
#property (weak, nonatomic) IBOutlet UILabel *titleLabel;
#property (weak, nonatomic) IBOutlet UILabel *companyLabel;
#property (weak, nonatomic) IBOutlet UIImageView *logoImageView;
#end

Answer 1

Create a method in DetailCell.h something like:
- (void)configureCell:(Job *)aJob atIndexPath:(NSIndexPath *)indexPath;
And implement it in DetailCell.m as you like it:
- (void)configureCell:(Job *)aJob atIndexPath:(NSIndexPath *)indexPath {
[self.titleLabel setText:aJob.title];
[self.companyLabel setText:aJob.company];
if (aJob.logo != (NSString *)[NSNull null]) {
[self.logoImageView setImageWithURL:[NSURL URLWithString:aJob.logo] placeholderImage:[UIImage imageNamed:#"placeholder.jpg"]];
} else {
[self.logoImageView setImage:[UIImage imageNamed:#"placeholder.jpg"]];
}
}
That's about it... When you do that all you need to do in your cellForRowAtIndexPath method is:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
DetailCell *cell = [tableView dequeueReusableCellWithIdentifier:#"DetailCell" forIndexPath:indexPath];
Job *aJob = self.jobs[indexPath.row];
[cell configureCell:aJob atIndexPath: indexPath];
return cell;
}
You actually don't need indexPatin in that cell method, but i have a habit of passing it always to the cell as it's usually a good thing to have it available :)

Answer 2

DetailCell.h
#class Job;
#interface DetailCell : UITableViewCell
#property (weak, nonatomic) IBOutlet UILabel *titleLabel;
#property (weak, nonatomic) IBOutlet UILabel *companyLabel;
#property (weak, nonatomic) IBOutlet UIImageView *logoImageView;
-(void) setJobDetail:(Job*) aJob;
#end
In DetailCell.m add the following method with a import for Job.h.
-(void) setJobDetail:(Job*) aJob{
[self.titleLabel setText:aJob.title];
[self.companyLabel setText:aJob.company];
if (aJob.logo != (NSString *)[NSNull null]) {
[self.logoImageView setImageWithURL:[NSURL URLWithString:aJob.logo] placeholderImage:[UIImage imageNamed:#"placeholder.jpg"]];
}
else {
[self.logoImageView setImage:[UIImage imageNamed:#"placeholder.jpg"]];
}
}
After which your cellForRowAtIndex changes to.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
DetailCell *cell = [tableView dequeueReusableCellWithIdentifier:#"DetailCell" forIndexPath:indexPath];
Job *aJob = self.jobs[indexPath.row];
[cell setJobDetail:aJob];
return cell;
}