UIActivityViewController

    //UIImage *imageToShare = [UIImage imageNamed:@"iosshare.jpg"];

    //NSURL *urlToShare = [NSURL URLWithString:@"http://blog.csdn.net/hitwhylz"];

    NSString *textToShare = self.textView.text;

    NSArray *activityItems = @[textToShare];

    UIActivityViewController *activity = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];

    activity.excludedActivityTypes = @[UIActivityTypeAirDrop];//要忽略的内容

    /* //ipad使用

     UIPopoverPresentationController *popover = activity.popoverPresentationController;

    if (popover) {

        popover.sourceView = self.activityButton;

        popover.permittedArrowDirections = UIPopoverArrowDirectionUp;

    }

     */

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