How do I create a standard iOS Share button?

Question

The iOS Human Interface Guidelines say:

Use the system-provided Share button. Users are familiar with the meaning and behavior of thi

Answer 1

This goes in your viewDidLoad:

UIBarButtonItem *shareButton = [[UIBarButtonItem alloc]
                                initWithBarButtonSystemItem:UIBarButtonSystemItemAction
                                target:self
                                action:@selector(compartir:)];
self.navigationItem.rightBarButtonItem = shareButton;

And define your selector method to be called as action (in my case named as "compartir"):

- (void) compartir:(id)sender{

//Si no


NSLog(@"shareButton pressed");


NSString *stringtoshare= @"This is a string to share";
UIImage *imagetoshare = img; //This is an image to share.

NSArray *activityItems = @[stringtoshare, imagetoshare];
UIActivityViewController *activityVC = [[UIActivityViewController alloc] initWithActivityItems:activityItems applicationActivities:nil];
activityVC.excludedActivityTypes = @[UIActivityTypeAssignToContact, UIActivityTypePrint, UIActivityTypePostToTwitter, UIActivityTypePostToWeibo];
[self presentViewController:activityVC animated:YES completion:nil];
}