how to show multiple info window of GMS mapView? - ios

Question

I want to add multiple info windows to appear at the same time with out tapping on the marker .
How to implement this ?
Here is my code to add multiple markers and adding a infoWindow?
for (int i = 0 ; i < jsonDataDict.count; i ++) {
NSDictionary *newDict = [jsonDataDict objectAtIndex:i ];
double latitude = [[newDict valueForKey:#"lat"]doubleValue];
double longitute = [[newDict valueForKey:#"lng"]doubleValue];
CLLocationCoordinate2D position = CLLocationCoordinate2DMake(latitude, longitute);
GMSMarker *marker = [GMSMarker markerWithPosition:position];
nameOfPlace = [newDict valueForKey:#"name"];
// distanceOfPlace = [newDict valueForKey:#"distance"];
marker.icon = [self image:[UIImage imageNamed:#"pinPopoye.png"] scaledToSize:CGSizeMake(75.0f, 60.0f)];
marker.appearAnimation = kGMSMarkerAnimationPop;
marker.infoWindowAnchor = CGPointMake(1.1, 0.70);
marker.map = self.mapView;
[self.mapView setSelectedMarker:marker];
//[self mapView:self.mapView markerInfoWindow:marker];
}
}
- (UIView *)mapView:(GMSMapView *)mapView markerInfoWindow:(GMSMarker *)marker
{
UIView *customView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 60, 25)];
customView.backgroundColor = [UIColor colorWithRed:71.0/255.0 green:65.0/255.0 blue:65.0/255.0 alpha:0.8];
customView.layer.cornerRadius = 5;
customView.layer.masksToBounds = YES;
nameLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, 60, 10)];
nameLabel.text = nameOfPlace;
nameLabel.textColor = [UIColor whiteColor];
nameLabel.textAlignment = NSTextAlignmentCenter;
nameLabel.font = [UIFont systemFontOfSize:8.0];
[customView addSubview:nameLabel];
distanceLabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 12, 60, 10)];
distanceLabel.text = distanceOfPlace;
distanceLabel.textColor = [UIColor whiteColor];
distanceLabel.textAlignment = NSTextAlignmentCenter;
distanceLabel.font = [UIFont systemFontOfSize:8.0];
[customView addSubview:distanceLabel];
return customView;
}