iOS:Tapjoy 全屏广告打开多个屏幕

Question

我正在尝试将 Tapjoy 用于我的应用程序，并且我正在使用以下代码

-(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];
}

问题是当我再次记忆起这个方法时，它同时打开了两个屏幕.. 我越多调用此方法，打开的屏幕就越多..

Answer 1

基本上，问题是您的notification 被观察到多少次，然后您的方法正在执行。因此，您可以防止此问题的一种方法是，一旦发布并观察到 ​​notification，然后删除您的 notification observer。这也取决于您的代码，即您如何处理 notification 部分。所以尝试删除观察者并检查以下内容:-

-(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];
}