How to remove a subview which is a UILabel - objective-c

Question

I have a scroll view, in which I am adding multiple UIImageview's.
For each image view I am adding a UIButton and a UILabel.
Now i want to remove UILabel view.
Please find with my code below
- (void)viewDidLoad {
[super viewDidLoad];
int h;
for (h=0; h<3; h++) {
UIImageView *k=[[UIImageView alloc]initWithFrame:CGRectMake(h*40, 0, 60, 90)];
k.backgroundColor=[UIColor yellowColor];
k.tag=h;
UIButton *j=[[UIButton alloc]initWithFrame:CGRectMake(20, 20, 20, 20)];
[j addTarget:self action:#selector(ge:) forControlEvents: UIControlEventTouchUpInside];
j.backgroundColor=[UIColor redColor];
[k addSubview:j];
k.userInteractionEnabled=YES;
[self.view addSubview:k];
}
}
Here I am just adding an image view and a button. If label exists remove UILabel else add UILabel
Once user click on the button
-(IBAction)ge:(id)sender{
UIImageView *imageView = (UIImageView *)[sender superview];
for (UIView *jkl in [[sender superview]subviews]) {
if ([jkl isKindOfClass:[UILabel class]]){
[jkl removeFromSuperview];
} else {
UILabel *y=[[UILabel alloc]initWithFrame:CGRectMake(20, 20, 20, 20)];
y.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"Close.jpeg"]];
[imageView addSubview:y];
}
}
}
but UILabel is not getting removed. Can you please help.

Answer 1

It looks like you're adding the label as a subview of your imageView, but the code that's trying to remove the label is looping through [[sender superview] subviews] – which are the subviews of the imageView's parent view. Try changing that code to loop through [sender subviews] instead.

Answer 2

You are also leaking those UIImageView and UIButton objects. You alloc/init them which sets the retain count to 1, then add them as a subview which sets retain count to 2. When the parent view containing them is released, it releases those views down to a retain count of 1, but never deletes them. You should either do an alloc/init/autorelease on them when you first create them, or release them after you add them as subviews to solve this problem.