removeObjectFromSuperView not working with if statement - ios

Question

I have a button that when pressed is supposed to hide the status bar and place text in its spot. Then, when the button is pressed the label is supposed o be removed from the view and the status bar will re-appear. The first part works -- the status bar is hidden and the label is placed on the view, the problem is when I press the button a second time (to remove the text and put back the status bar). The status bar re-appears but the label is not being removed from the view. To achieve this I am using an if statement. I am also using removeObjectFromSuperView which is the thing that is not working.
Here is the code:
- (IBAction)buttonPressed:(id)sender {
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 320, 21)];
label.text = #"This is a test";
[label setFont:[UIFont systemFontOfSize:13]];
label.textAlignment = NSTextAlignmentCenter;
if (hidden == NO) {
[UIApplication sharedApplication].statusBarHidden = YES;
[self.view addSubview:label];
hidden = YES;
}else if (hidden == YES) {
[UIApplication sharedApplication].statusBarHidden = NO;
[label removeFromSuperview];
hidden = NO;
}
}
Thanks
Edit: Here is what the problem looks like:

Answer 1

You need to track your label outside of the buttonPressed: method. Right now you are creating a new label every time the button is pressed then removing that same label.
So for example:
#interface MyViewController () {
UILabel *label;
}
- (IBAction)buttonPressed:(id)sender {
if (hidden == NO) {
[UIApplication sharedApplication].statusBarHidden = YES;
label = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 320, 21)];
label.text = #"This is a test";
[label setFont:[UIFont systemFontOfSize:13]];
label.textAlignment = NSTextAlignmentCenter;
[self.view addSubview:label];
hidden = YES;
} else if (hidden == YES) {
[UIApplication sharedApplication].statusBarHidden = NO;
[label removeFromSuperview];
label = nil;
hidden = NO;
}
}
You can also set label = nil; once you remove it from the super view.