custom UITableViewCell memory leak when calling reloadData - ios

Question

I have a UITableView that's loading some custom UITableViewCells. These custom cells alloc a few UIButtons, and add those buttons to the custom cell's contentView. When repeatedly calling reloadData on the tableView, it seems these UIButtons are slowly leaking memory. I am using ARC, iOS 7.
Here's where the cell is created:
- (UITableViewCell *)tableView:(UITableView *)_tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *simpleTableIdentifier = #"PostCell";
PostCell *cell = [_tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil) {
cell = [[PostCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
return cell;
}
And here's the init method for the custom cell:
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
self.height = 0;
self.backgroundColor = [UIColor clearColor];
self.selectionStyle = UITableViewCellSelectionStyleNone;
[self addInteractionContainer];
}
return self;
}
And finally the addInteractionContainer method (if I don't call this method, I don't see a leak):
- (void)addInteractionContainer {
//interaction container
UIView* interactionContainer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, 80)];
[interactionContainer setBackgroundColor:[UIColor ProseSepiaColor]];
//like button
LikeButton* likeButton = [[LikeButton alloc] initWithFrame:CGRectMake(10, 10, 75, 30) liked:([post.yourVote intValue] > 0)];
[likeButton addTarget:self action:#selector(likePost:) forControlEvents:UIControlEventTouchUpInside];
[interactionContainer addSubview:likeButton];
//comment button
CommentButton* commentButton = [[CommentButton alloc] initWithFrame:CGRectMake(likeButton.frame.origin.x + likeButton.frame.size.width + 10,
10, 105, 30)];
[commentButton addTarget:self action:#selector(segueToComments:) forControlEvents:UIControlEventTouchUpInside];
[commentButton setNumComments:self.post.numComments];
[interactionContainer addSubview:commentButton];
[self.contentView addSubview:interactionContainer];
self.height += interactionContainer.frame.size.height;
}

Answer 1

try this
- (UITableViewCell *)tableView:(UITableView *)_tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *simpleTableIdentifier = #"PostCell";
PostCell *cell = [_tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if(cell!=nil)
{
cell=nil;
}
if (cell == nil) {
cell = [[PostCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
}
return cell;
}