AppDelegate.m

#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate
NSString *integrationKey = @"your integration key here";

- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
  Publisher* publisher = Publisher.shared;
  
  /// setup event. You need implement method from `PublisherDelegate`
  publisher.delegate = self;
  
  /// setup integration key
  [publisher setup: integrationKey];
  
  /// if this value is true it will not show custom alert from our
  location SDK and if false it will show custom alert that we can update
  the message
  publisher.disableAlertWhenUserDenied = false;
  
  /// this is custom alert title to request access location
  publisher.requestAccessAlertTitle = @"Need Location Access";

  /// this is custom alert message to request access location
  NSString *bundleName = [NSBundle.mainBundle
  objectForInfoDictionaryKey:(id)kCFBundleNameKey];
  publisher.requestAccessAlertMessage = [NSString stringWithFormat:@"%
  @ %@", @"Please give authorization location access to continue the
  process. Go to Settings > Privacy > Location Services", bundleName];

  ///start tracking location. After you call this method, our SDK
  will automatically tracking event and do the logic for you
  [publisher startTrackingLocation];
  
  return YES;
}

#pragma mark - PublisherDelegate
- (UIViewController * _Nullable)publisherControllreParent {
  NSPredicate *isKeyWindow = [NSPredicate predicateWithFormat:@"
  isKeyWindow == YES"];
  return [[[UIApplication sharedApplication] windows]
  filteredArrayUsingPredicate:isKeyWindow].firstObject.rootViewController;
}

- (void)publisherOnErrorWithError:(NSError * _Nonnull)error {
  NSLog(@"qdPublisher %@", error.localizedDescription);}

- (void)publisherOnSuccessTracking {
  NSLog(@"qdPublisher Success");
}
@end