if( [UIActivityViewController class] ) {
NSString *textToShare = @"Text that will be shared";
UIImage *imageToShare = [UIImage imageNamed:@"share_picture.png"];
NSArray *itemsToShare = [[NSArray alloc] initWithObjects:textToShare, imageToShare, nil];
UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:itemsToShare applicationActivities:nil];
activityVC.excludedActivityTypes = [[NSArray alloc] initWithObjects: UIActivityTypePrint, UIActivityTypeCopyToPasteboard, UIActivityTypeAssignToContact, UIActivityTypeSaveToCameraRoll, UIActivityTypeMessage, UIActivityTypePostToWeibo, nil];
[self presentViewController:activityVC animated:YES completion:nil];
}
Or better use
if( NSClassFromString (@"UIActivityViewController") ) {
}
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