objective-c - UIActivityViewController 完成处理程序如何？

Question

我正在尝试使用 UIActivityViewControllerCompletionHandler ，但我不太明白如何......

我想检测用户何时完成或关闭此 View Controller (UIActivityViewController)。

有人知道怎么做吗？

Answer 1

这是显示共享对话框并设置其完成处理程序的方式

NSArray *imageArray = [NSArray arrayWithObject:shareImage];

UIActivityViewController *sharing = [[UIActivityViewController alloc] initWithActivityItems:imageArray applicationActivities:nil];

[sharing setCompletionHandler:^(NSString *activityType, BOOL completed) {
    NSLog(@"completed dialog - activity: %@ - finished flag: %d", activityType, completed);
}];

[self presentViewController:sharing animated:YES completion:nil];