// ----- simplest: -----

- (void) application:(id) app didFinishLaunchingWithOptions:(NSDictionary*) opts;
{
    ...
    services = [ILServicesController new];
    services.showsServicesActionInMenu = YES;
    // with this, all menus will show a Services… command at the end.
    // you can easily tap into this by implementing a UIResponder action in your view or view controller subclass, and let SwapKit's default impl manage everything for you. Just show the menu as you would for cut/copy/paste.
    // SK2 contains default implementations of this for UIKit text controls, so they work without writing any extra code!
    ...
}

// ----- more control: -----

- (void) sendSomeImageToSwapKit {

    ILServiceIntent* intent = [ILServiceIntent intentForSendingImage:self.selectedImage action:kILServiceActionAny];

    [services invokeServiceForIntent:intent fromViewController:self.window.rootViewController];
}

// ----- even more control: -----

- (void) sendSomeTextToSwapKit {

    ILServiceIntent* intent = [ILServiceIntent intentForSendingSubstringOfEditedText:self.textField.text selectedRange:self.textField.selectedRange action:kILServiceActionAny];

    // The above would allow SwapKit to show service entries for "selection", "paragraph", "entire document" etc in the picker automatically.

    ILServiceInvocationController* invo = [services controllerForInvokingServiceForIntent:intent];
    invo.delegate = self;
    [invo proceed];
}

- (ILServiceInvocationPresentationStyle) presentationStyleForInvocationController:(id) ctl;
{
    return kILServiceInvocationPresentationModal; // on iPad, causes any view controller shown to be displayed as a modal view controller instead of a popover
}

- (void) presentModalViewController:(id) vc forInvocationController:(id) ctl;
{
    vc.modalPresentationStyle = // blah, customize customize
    [self.window.rootViewController presentModalViewController:vc animated:YES];
}

- (void) dismissModalViewController:(id) vc forInvocationController:(id) ctl;
{
    [vc dismissModalViewControllerAnimated:YES];
}