在我的应用程序中,我添加了这些代码行来整合uiactivityviewcontroller的功能
UIImage *yourImage = someImg;
UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:[NSArray arrayWithObjects:@"abcdefgh",yourImage, nil] applicationActivities:nil];
activityVC.excludedActivityTypes = @[ UIActivityTypeMessage ,UIActivityTypeAssignToContact,UIActivityTypeSaveToCameraRoll];
[self presentViewController:activityVC animated:YES completion:nil];
UIActivityViewController正常工作,但UI如下所示:没有FB图标,没有Twitter图标,这是iPad的截屏:
然而,在iOS 6中它显示出完美的UI。可能的原因是什么?