Question

I have this

UILabel *selectedLabel;
    selectedLabel = nil;
    if (is_x) {
        selectedLabel = labelField_x;
    } else if (is_y) {
        selectedLabel = labelField_y;
    } else if (is_z) {
        selectedLabel = labelField_z;
    }

To prevent this from repeating in the code, how can I make a method that will return a type UILabel class.

I have tried this (it does’t work):

in header (.h) file:

//new method
- (UILabel *) selected;

in implementation (.m) file:

- (UILabel *) selected {
 UILabel *selectedLabel;
    selectedLabel = nil;
    if (is_x) {
        selectedLabel = labelField_x;
    } else if (is_y) {
        selectedLabel = labelField_y;
    } else if (is_z) {
        selectedLabel = labelField_z;
    }
return selectedLabel;
}

- (IBAction)buttonPressed:(id)sender{
 [self selected];

}

How can I return selectedLabel inside the IBAction.

Thank you.

Answer 1

Your code looks right, all you need to do is create a UILabel variable in your buttonPressed: method to store the reference to the returned label. So change

[self selected];

to:

UILabel *selectedLabel = [self selected];
// Now do what you want with the selectedLabel