Question

I don’t quite understand, but basically I am trying to click a button and have a value added to my NSMutableArray myArray which is a property. I thought my method that would be called when a button is pressed would be something like:

- (IBAction)addInterval {
 NSString *string = @"test";
 [self.myArray addObject:string];
}

But I don’t understand why this doesn’t work?

Also, is Wifi, volume control, and bluetooth all not in our sandbox to be used?thanks.

Answer 1

In general, in order for your IBAction to get called, it must have a parameter, e.g.

-(IBAction) addInterval: (id)sender {
}

Also, make sure you have bound the action to the button correctly inside the UI Designer – you should see it as an action outlet for the button.

To make sure your method is being called, stick a line in the method like:

NSLog(@"Called addInterval action");

Bluetooth will not work in sandbox, WiFi will work in the sense that the network connection will function, and the reachability example should help you here.