Change UIButton for Specific cell - ios

Question

Having issues updating uibutton in specific uitableviewcell. When I change the button color it updates every button in uitableview. Attached my code below:
PFObject *post = [self.objectArray objectAtIndex:indexPath.section];
cell.likeBtn.layer.cornerRadius = 5.0f;
//To access button methods
[cell.likeBtn setTag:indexPath.section];
NSMutableDictionary *attributes = [NSMutableDictionary
dictionaryWithDictionary:[[TMMemoryCache sharedCache] objectForKey:post.objectId]];
BOOL likedByCurrentUser = [[attributes objectForKey:#"likedByCurrentUser"] boolValue];
if (likedByCurrentUser) {
cell.likeBtn.backgroundColor = [UIColor flatRedColor];
[cell.likeBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[cell.likeBtn setTitle:#"Liked" forState:UIControlStateNormal];
}else{
//NSLog(#"Did not like %#", post.objectId);
cell.likeBtn.backgroundColor = [UIColor flatBlueColor];
[cell.likeBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[cell.likeBtn setTitle:#"Like" forState:UIControlStateNormal];
}
is their a better way to update uibutton in just one specific cell?

Answer 1

There are two ways to do what you want, depending on how the updated information comes in:
When configuring the cell in cellForRowAtIndexPath:.
Let the cell manage its own contents.
More often than not, #1 is the way to go. When new information comes into your UITableViewController, do 1 of the following:
Call reloadData to force a refresh of the entire table.
Figure out which cells need to be updated and call reloadRowsAtIndexPaths:withRowAnimation: passing in the correct index path values.
In either of those scenarios, you'll set up the button correctly somewhere in your tableView:cellForRowAtIndexPath: method. Generally, I create my UITableViewCell subclasses to accept an object and configure themselves with the data in that object. That way, there's less code in my UITableViewController that deals with cell configuration.
A typical implementation of tableView:cellForRowAtIndexPath: looks like this:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
Cell *cell = [tableView dequeueReusableCellWithIdentifier:#"item" forIndexPath:indexPath];
[cell configureForItem:self.dataSource[indexPath.row]];
return cell;
}
Each of your UITableViewCell instances will have their own button that will be configured by the data passed by the object in self.dataSource[indexPath.row]. That way, as cells are recycled, the button isn't just passed around, but a new one is recycled and configured each time a new cell is needed.

Answer 2

At a guess, without seeing more of your code I would say your issue is with your use of indexPath.section instead of indexPath.row
If you have multiple buttons per section then they will all be covered by this code.