iOS: Tapjoy fullscreen ad open multiple screens

Question

i'm trying to use Tapjoy for my apps and i'm using the following code

-(void)getTapJoyAd{
    [Tapjoy getFullScreenAd];

    // A notification method must be set to retrieve the fullscreen ad object.
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(getFullScreenAd:)
                                                 name:TJC_FULL_SCREEN_AD_RESPONSE_NOTIFICATION
                                               object:nil];

    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(fullscreenAdClosed:)
                                                 name:TJC_VIEW_CLOSED_NOTIFICATION
                                               object:nil];

    // This method requests the tapjoy server for current virtual currency of the user.
    [Tapjoy getTapPoints];
    // A notification method must be set to retrieve the points.
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(getUpdatedPoints:) name:TJC_TAP_POINTS_RESPONSE_NOTIFICATION object:nil];
}

the problem is when i recall the method again it opens two screens together .. the more i call this method the more screens open up..

Answer 1

Basically the problem is how many times your notification is observed then your method is executing. So one way you can prevent the issue is once notification is posted and observed then remove your notification observer. Also it depends on your code as well, that how you are dealing with notification part. So try to remove observer and check below:-

-(void)viewDidDisappear:(BOOL)animated
{
    [[NSNotificationCenter defaultCenter]removeObserver:self name:TJC_FULL_SCREEN_AD_RESPONSE_NOTIFICATION object:nil];
    [[NSNotificationCenter defaultCenter]removeObserver:self name:TJC_VIEW_CLOSED_NOTIFICATION object:nil];
    [[NSNotificationCenter defaultCenter]removeObserver:self name:TJC_TAP_POINTS_RESPONSE_NOTIFICATION object:nil];
}