How to add custom menu item to UITextView menu, which is a link to the Wikipedia page of the selected word?

Question

I am new to Xcode, I am using version 4.6.3 - Macbook too old for the new version.

I looked around the internet and Stack Overflow and cannot find what I want or I canno

Answer 1

MyViewController.h

@interface MyViewController : UIViewController

// Linked textField from interface builder
@property (weak, nonatomic) IBOutlet UITextField *textField;

@end

---

MyViewController.m

In viewDidLoad method, add wiki button to UIMenuController.

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Add wiki button to UIMenuController
    UIMenuController *menuController = [UIMenuController sharedMenuController];
    UIMenuItem *wikiItem = [[UIMenuItem alloc] initWithTitle:@"Wiki" action:@selector(openWiki:)];
    [menuController setMenuItems:[NSArray arrayWithObject:wikiItem]];

}

Create openWiki method:

- (void)openWiki:(id)sender {

    if(![[_textField selectedTextRange] isEmpty]) {

        // Url string
        NSString *urlStr = [NSString stringWithFormat:@"http://en.wikipedia.org/wiki/%@",[_textField textInRange:[_textField selectedTextRange]]];

        // Create url object
        NSURL *myURL = [[NSURL alloc] initWithString:urlStr];

        // Open url in safari
        [[UIApplication sharedApplication] openURL:myURL];

    }
}

And that's it.