I've declared a property on my UICollectionViewCell like this:
@property (nonatomic, copy) void(^onSelection)(BOOL selected);
I override -setSelected:
like this:
- (void)setSelected:(BOOL)selected {
[super setSelected:selected];
if (self.onSelection != NULL) {
self.onSelection(selected);
}
}
Then in -cellForItemAtIndexPath:
i configure like this
cell.onSelection = ^(BOOL selected) {
//the compiler is telling me this might be a retain cycle but i dont think so...
cell.tintColor = [UIColor redColor];
};
Is this a retain cycle?
Thanks!
Yes it is. Instead you should use a weak+strong combo.
__weak typeof(cell) weakCell = cell;
cell.onSelection = ^(BOOL selected) {
__strong typeof(weakCell) strongCell = weakCell;
//the compiler is telling me this might be a retain cycle but i dont think so...
strongCell.tintColor = [UIColor redColor];
};
In your particular case you don't even need this block because you can update cell in subclass inside of setSelected:
or handle tableView:didSelectRowAtIndexPath:
in your table view controller.
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