Remove UiView removeFromSuperview with button action - uiview

Question

I'm having problems with the action of a button ... I do not understand why things are not working and wanted to ask you if you could help me understand the error.
In my viewController I have a button in the selected mode adds a UIView inside another UIView but when the button is brought in was not selected should eliminate the view previously entered, it remains there without doing anything ... I tried in this way, but I do not understand where I'm wrong
- (IBAction)shareActive:(id)sender {
UIView *checkActive = [[UIView alloc]init];
checkActive.frame =CGRectMake(2, 2, 11, 11);
checkActive.layer.masksToBounds = YES;
checkActive.layer.cornerRadius = 5.5f;
checkActive.backgroundColor = [UIColor greenColor];
if (!self.condividiButton.selected) {
self.condividiButton.selected = YES;
[self.checkCondividi addSubview:checkActive];
NSLog(#"attivo");
}else {
self.condividiButton.selected = NO;
[checkActive removeFromSuperview];
NSLog(#"disattivo");
}
}

Answer 1

here is one of the many possible solutions.
I'm sure the others will give you different ideas about how such problem can be also solved.
- (IBAction)buttonShareTouchedUpInside:(UIButton *)sender {
if (!self.condividiButton.selected) {
UIView *checkActive = [[UIView alloc]init];
checkActive.tag = 121212;
checkActive.frame =CGRectMake(2, 2, 11, 11);
checkActive.layer.masksToBounds = YES;
checkActive.layer.cornerRadius = 5.5f;
checkActive.backgroundColor = [UIColor greenColor];
self.condividiButton.selected = YES;
[self.checkCondividi addSubview:checkActive];
} else {
self.condividiButton.selected = NO;
[self.checkCondividi.subviews enumerateObjectsUsingBlock:^(UIView * obj, NSUInteger idx, BOOL *stop) {
if (obj.tag == 121212) {
[obj removeFromSuperview];
}
}];
}
}
NOTE: the original problem can be resolved via many other and probably more elegant ways, but I'm not concerning about those here.