[iOS] UIActivity 类，用于显示在 UIActivityViewController 中的 Action 消息
UIActivity *textActivity = [[AQSActionMessageActivity alloc] init];
UIActivityViewController *activityViewController = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:textActivity];
activityViewController.excludedActivityTypes = @[UIActivityTypeMessage];
[self presentViewController:activityViewController animated:YES completion:NULL];activityItems 类型NSStringNSURLUIImage以及它们的任何组合。
即使在您为用户自行编写消息的情况提供了空的 activityItem，它也会出现在 UIActivityViewController 中。
pod "AQSActionMessageActivity"
https://dl.dropboxusercontent.com/u/7817937/___doc___AQSActionMessageActivity/html/index.html