问在iOS应用程序中找不到废弃的内存

EN

@interface SMTitleScreenViewController ()
@property (weak, nonatomic) IBOutlet UIButton *buttonPlay;
@property (weak, nonatomic) IBOutlet UIButton *buttonCamera;
@property (weak, nonatomic) IBOutlet UIImageView *titleBG1;
@property (weak, nonatomic) IBOutlet UIImageView *titleBG;

- (IBAction)onButtonPlay:(id)sender;
- (IBAction)onButtonCamera:(id)sender;
@end

@implementation SMTitleScreenViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self)
    {

    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIColor* color = [UIColor colorWithRed:0.2509f green:0.1176f blue:0.0745f alpha:1.0f];
    UIFont* font = [UIFont fontWithName:@"Jungle Roar" size:BUTTON_FONT_SIZE];

    NSString* playString = NSLocalizedString(@"Play", @"");
    NSString* cameraString = NSLocalizedString(@"Camera", @"");

    [self.buttonPlay setTitle:playString forState:UIControlStateNormal];
    [self.buttonPlay setTitle:playString forState:UIControlStateHighlighted];
    [self.buttonPlay setTitleColor:color forState:UIControlStateNormal];
    [self.buttonPlay setTitleColor:color forState:UIControlStateHighlighted];
    self.buttonPlay.titleLabel.font = font;

    [self.buttonCamera setTitle:cameraString forState:UIControlStateNormal];
    [self.buttonCamera setTitle:cameraString forState:UIControlStateHighlighted];
    [self.buttonCamera setTitleColor:color forState:UIControlStateNormal];
    [self.buttonCamera setTitleColor:color forState:UIControlStateHighlighted];
    self.buttonCamera.titleLabel.font = font;

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)onButtonPlay:(id)sender
{
    [self performSegueWithIdentifier:@"titleToChooseAnt" sender:self];
}

- (IBAction)onButtonCamera:(id)sender
{

}
@end