我一直尝试使用新的UIActivityViewController来替换所有的UIActionSheets进行分享,但是我遇到了一个问题。
我有5个活动:消息、电子邮件、复制、推特和Facebook。我已经通过在自定义UIActivityProvider子类中实现以下代码来显示这些不同的文本:
- (id) activityViewController:(UIActivityViewController *)activityViewController
itemForActivityType:(NSString *)activityType
{
if ( [activityType isEqualToString:UIActivityTypePostToTwitter] )
return twitter;
if ( [activityType isEqualToString:UIActivityTypePostToFacebook] )
return facebook;
if ( [activityType isEqualToString:UIActivityTypeMessage] )
return urlScheme;
if ( [activityType isEqualToString:UIActivityTypeMail] )
return urlScheme;
if ( [activityType isEqualToString:UIActivityTypeCopyToPasteboard])
return urlScheme;
return nil;
}
这是我的视图控制器中的代码:
ActivityProvider *aProvider = [[ActivityProvider alloc] init];
aProvider.facebook = facebook;
aProvider.twitter = twitter;
aProvider.urlScheme = URL;
NSArray *Items = @[aProvider, sharedURL];
UIActivityViewController *activityVC = [[UIActivityViewController alloc]initWithActivityItems:Items applicationActivities:Nil];
activityVC.excludedActivityTypes = @[UIActivityTypePrint, UIActivityTypeAssignToContact,UIActivityTypeSaveToCameraRoll, UIActivityTypePostToWeibo];
[self presentViewController:activityVC animated:TRUE completion:nil];
然而,我只想在Facebook和Twitter共享页面中显示URL(sharedURL),而不是消息、电子邮件或复制。有什么方法可以实现这一点吗?