AppDelegate.m

#import "AppDelegate.h"
#import "Intercom/intercom.h"

@implementation AppDelegate

- (void) show:(UIButton *) sender {
    [Intercom presentMessenger];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  [Intercom setApiKey:@"regenerated-:(" forAppId:@"regenerated-:("];

  UIViewController *rootViewController = [UIViewController new];
  rootViewController.view.backgroundColor = [[UIColor alloc] initWithRed:1.0f green:0.0f blue:1.0f alpha:1];
  
  UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
  [button addTarget:self
             action:@selector(aMethod:)
   forControlEvents:UIControlEventTouchUpInside];
  [button setTitle:@"Show View" forState:UIControlStateNormal];
  button.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
  [rootViewController.view addSubview:button];
  
  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
  self.window.rootViewController = rootViewController;
  [self.window makeKeyAndVisible];
  
  return YES;
}

@end