问背景UILocalNotification - iOS 9

EN

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray<CLLocation *> *)locations
{
    CLLocation *currLocation = [locations lastObject];

    CLLocationDistance dist = [currLocation distanceFromLocation:[[CLLocation alloc] initWithLatitude:self.coordinate.latitude longitude:self.coordinate.longitude]];

    BOOL gotToDestination = dist < 60;

    if (gotToDestination) {
        UILocalNotification* n1 = [[UILocalNotification alloc] init];
        n1.alertBody = [NSString stringWithFormat:@"You have arrived!"];
        n1.soundName = UILocalNotificationDefaultSoundName;
        n1.fireDate = [NSDate date];
        [[UIApplication sharedApplication] presentLocalNotificationNow:n1];
    }
}