Custom UIButton not working - ios

Question

After looking through the post on this simple topic I still can not figure out what I've done wrong here. I am trying to make the buttons loop through the same action in the same viewController.
When the view comes onto the screen the buttons do not click (or at least the NSLog does not write to the console which it does the first time it enters this code.)
- (IBAction)answer: (id) sender{
NSLog(#"The Number is: %d\n",qNumber);
qNumber+=1;
UIView *newView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
[newView setUserInteractionEnabled:TRUE];
UIImage *buttonImage = [UIImage imageNamed:#"pink_button.png"];
UIImageView *buttonImageView = [[[UIImageView alloc] initWithFrame:CGRectMake(23, 294, 72, 37)] autorelease];
[buttonImageView setImage:buttonImage];
UILabel* buttonLabel = [[[UILabel alloc] initWithFrame:CGRectMake(23, 294, 72, 37)] autorelease];
buttonLabel.text = #"newLow";
buttonLabel.font = [UIFont fontWithName:#"Helvetica-Bold" size: 15.0];
buttonLabel.textColor = [UIColor blackColor];
buttonLabel.backgroundColor = [UIColor clearColor];
buttonLabel.textAlignment = UITextAlignmentCenter;
lowButton = [UIButton buttonWithType:UIButtonTypeCustom];
[lowButton addSubview:buttonImageView];
[lowButton addSubview:buttonLabel];
[lowButton addTarget:self action:#selector(answer:) forControlEvents:UIControlEventTouchUpInside];
[newView addSubview:lowButton];
self.view = newView;
}
Thanks for any help you can provide...even if I missed something simple :-)
Latest Updated Code:
lowButton = [UIButton buttonWithType:UIButtonTypeCustom];
[newView addSubview:buttonImageView];
[newView addSubview:buttonLabel];
[lowButton addTarget:self action:#selector(answer:) forControlEvents:UIControlEventTouchUpInside];
[newView addSubview:lowButton];
[self.view bringSubviewToFront:lowButton];
self.view = newView;
Still when the button is pressed it does not enter the action code.

Answer 1

You button needs a frame. You can't tap a frameless button.
lowButton.frame = CGRectMake(23, 294, 72, 37);
Also, when you add label and image to that button, their frame should have x and y 0.
UIImageView *buttonImageView = [[[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 72, 37)] autorelease];
...
UILabel* buttonLabel = [[[UILabel alloc] initWithFrame:CGRectMake(0, 0, 72, 37)] autorelease];
...
But may I ask why you are adding new UIImageView and UILabel to UIButton when it has it's label and background view properties?
Edit here is a cleaned-up code for you:
UIView *newView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
lowButton = [UIButton buttonWithType:UIButtonTypeCustom];
[lowButton setImage:[UIImage imageNamed:#"pink_button.png"] forState:UIControlStateNormal];
[lowButton setTitle:#"newLow" forState:UIControlStateNormal];
[lowButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[lowButton.titleLabel setFont:[UIFont boldSystemFontOfSize:15.0]];
[lowButton addTarget:self action:#selector(answer:) forControlEvents:UIControlEventTouchUpInside];
[newView addSubview:lowButton];
self.view = newView;
Notice I also removed [newView setUserInteractionEnabled:TRUE]; as it's not needed since it's enabled by default.

Answer 2

Your custom button's subviews are covering the button, so it does not get any clicks.
Try adding all the subviews to newView rather than to lowButton (including lowButton itself) and then call
[self.view bringSubViewToFront:lowButton];