为什么我在关闭视图控制器后无法显示我的 Facebook 插页式广告？
Why cant I show my facebook interstitial ad after dismissing a view controller?
我正在使用 ReplayKit，当我按下取消或保存按钮时，它关闭了视图控制器，我想展示一个广告。问题是广告没有显示，我收到此错误：如何解决？谢谢！
Warning: Exception caught during invocation of received message, dropping incoming message and invalidating the connection.
Exception: This method must be called on the main thread
internal func previewControllerDidFinish(previewController: RPPreviewViewController) {
previewViewController.dismissViewControllerAnimated(true, completion: nil)
NSNotificationCenter.defaultCenter().postNotificationName("loadAd", object: nil)
}
所有UI相关操作必须在主线程中完成。你可以使用 GCD 做这样的事情：
dispatch_async(dispatch_get_main_queue()) {
previewViewController.dismissViewControllerAnimated(true, completion: nil)
}
您还可以post在 dismissViewControllerAnimated
的完成块中通知
我正在使用 ReplayKit，当我按下取消或保存按钮时，它关闭了视图控制器，我想展示一个广告。问题是广告没有显示，我收到此错误：如何解决？谢谢！
Warning: Exception caught during invocation of received message, dropping incoming message and invalidating the connection. Exception: This method must be called on the main thread
internal func previewControllerDidFinish(previewController: RPPreviewViewController) {
previewViewController.dismissViewControllerAnimated(true, completion: nil)
NSNotificationCenter.defaultCenter().postNotificationName("loadAd", object: nil)
}
所有UI相关操作必须在主线程中完成。你可以使用 GCD 做这样的事情：
dispatch_async(dispatch_get_main_queue()) {
previewViewController.dismissViewControllerAnimated(true, completion: nil)
}
您还可以post在 dismissViewControllerAnimated
的完成块中通知