ios - 如何检测选择了哪个事件以及如何检查消息是否已发送？

Question

我有代码可以简单地从应用程序中分享一些消息。

UIActivityViewController *activityViewController = [[UIActivityViewController alloc]
                                                    initWithActivityItems:@[message]
                                                    applicationActivities:nil];

activityViewController.excludedActivityTypes = @[UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll];
[self presentViewController:activityViewController animated:YES completion:nil];

问题:

1. 是否可以检测选择了哪个共享选项？
2. 是否可以检测消息之前是否被分享或取消？

提前谢谢你。

Answer 1

下面是如何使用 UIActivityViewControllerCompletionHandler 的示例:

UIActivityViewController *activityViewController = [[UIActivityViewController alloc]
                                                    initWithActivityItems:@[@"abc", someImage]
                                                    applicationActivities:nil];

[activityViewController setCompletionHandler:^(NSString *activityType, BOOL completed) {
    NSLog(@"%@, %d", activityType, completed);
}];

activityViewController.excludedActivityTypes = @[UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll];
[self presentViewController:activityViewController animated:YES completion:nil];