Question

Forgive me if this is a simple question, but is a UISwitch a boolean variable? If it is not, how can I make it BOOL?

Please allow me to explain why I’m having trouble.

I declared my variable in my FlipsideViewController.

UISwitch* mySwitch;     //switch used to turn label2 on/off

also creating an accessor

@property (nonatomic, retain) IBOutlet UISwitch *mySwitch;

EDIT: and of course I synthesize it.

Then in Interface Builder I connected mySwitch to a Switch I created on that view.

NOW, I have a method that I’m using which is this in the MainViewController:

- (void)updateLabels:(NSString *)text :(BOOL)isOn {

    [nameLabel setText:text]; 
    if (isOn==YES)
    [onLabel setText:(@"ON")];
      else
       [onLabel setText:(@"OFF")]; }

The problem I’m having is that whenever I run the program, the label always displays “OFF”. Do you have any clue why? I’m really helpless.

I would really appreciate any help on this, and again I apologize for being such a newbie. 🙂

EDIT: This is how I’m calling the method…

 [self.delegate updateLabels: myTextField.text : mySwitch.state];

So, I’m passing in the state of the mySwitch UISwitch.

Answer 1

You either need to connect the UISwitch to an IBAction method that updates isOn, or read the state of the switch in your test.

Here’s the latter: UPDATE Changed the code after you clarified the relationships between the view controllers.

- (void)updateLabels:(NSString *)text isOn:(BOOL)isOn {
    [nameLabel setText:text]; 
    if (isOn == YES) {
       [onLabel setText:(@"ON")];
    } else {
       [onLabel setText:(@"OFF")]; 
    }
}

The call to updateLabels, which I’m hoping exists in FlipSideViewController, should look something like this: (I obviously don’t know your variables names.)

[self.delegate updateLabels:self.myTextField.text isOn:self.mySwitch.on];