我有一个视图控制器通过条形按钮项打开一个“打开”对话框。
调用代码:
UIDocumentInteractionController *docInteraction = [[UIDocumentInteractionController alloc] init];
docInteraction.URL = location;
docInteraction.delegate = self;
if ([docInteraction presentOpenInMenuFromBarButtonItem:self.openInButton animated:YES])
self.openInController = docInteraction;
解雇代码:
UIDocumentInteractionController *openIn = self.openInController;
if (openIn) {
[openIn dismissMenuAnimated:animated];
self.openInController = nil;
popupsDismissed = YES;
}
关闭代码后的某个时间,应用程序崩溃并出现以下异常:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[A2DynamicUIPopoverControllerDelegate popoverController:animationCompleted:]: unrecognized selector sent to instance 0x1f82b4f0'
这是一个 BlocksKit 定义的接口,但在特定情况下我没有使用 BlocksKit 类。0x1f82b4f0 是一个<A2DynamicDelegate: 0x1f82b4f0; protocol = UIPopoverControllerDelegate>
,但为什么 BlocksKit 会出现在这里是一个谜。有人可以给我一些有关如何解决异常的见解吗?