Button on cameraOverlayView not working

Question

I have the following cameraOverlayView that is working to an extent. When the UIImagePickerController is called the standard controls are not shown and the 'Take Photo' button and logo.jpg are shown as described in ObViewControllerCameraOverlay. The button functions in that it goes blue when pressed but my problem is that it does not call the action (the NSLog is simply for test purposes). Can anyone see what I might have done wrong?

@implementation ObViewControllerCameraOverlay

- (id)initWithFrame:(CGRect)frame {
if (self = [super initWithFrame:frame])
{
    UIImage *logo = [UIImage imageNamed:@"logo.jpg"];
    UIImageView *logoView = [[UIImageView alloc] initWithImage:logo];
    logoView.frame = CGRectMake(0, 0, 240, 50);
    [self addSubview:logoView];

    UIButton *takePhotoButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [takePhotoButton setTitle:@"Take photo" forState:UIControlStateNormal];
    takePhotoButton.frame = CGRectMake(0, 330, 320, 40);
    [self addSubview:takePhotoButton];
}
return self;
}

- (IBAction)takePhotoButton:(id)sender
{
NSLog(@"test");
}

Answer 1

It doesn't look like you've told your button to call takePhotoButton: when it's tapped. Try adding

[takePhotoButton addTarget:self action:@selector(takePhotoButton:) forControlEvents:UIControlEventTouchUpInside];

after you've created the button in initWithFrame: