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Possible to show more than on feature layer?

BrendanMcKenney

Typo in the Post Title. Sorry. Meant to say more than ONE feature layer.

I'm trying to add more than one feature layer to the mapView at a time. Is this possible? There are a total of 9 feature layers that could be shown at once if possible. Here is what I have tried already. It seems only the first layer is shown, and not subsequent layers. Any suggestions would be appreciated.

    self.incidentsLayer = [AGSFeatureLayer featureServiceLayerWithURL:[NSURL URLWithString:@"http://egisws02.nos.noaa.gov/ArcGIS/rest/services/MP/MPA_Inventory_Fishing/MapServer/1"] mode:AGSFeatureLayerModeOnDemand];     self.incidentsLayer.outFields = [NSArray arrayWithObject:@*];     self.incidentsLayer.infoTemplateDelegate = self.incidentsLayer;          self.restrictedLayer = [AGSFeatureLayer featureServiceLayerWithURL:[NSURL URLWithString:@"http://egisws02.nos.noaa.gov/ArcGIS/rest/services/MP/MPA_Inventory_Fishing/MapServer/2"] mode:AGSFeatureLayerModeOnDemand];     self.restrictedLayer.outFields = [NSArray arrayWithObject:@*];     self.restrictedLayer.infoTemplateDelegate = self.restrictedLayer;               [self.mapView addMapLayer:self.incidentsLayer withName:@Incidents];      [self.mapView addMapLayer:self.incidentsLayer withName:@Restricted];

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Accepted answers

NimeshJarecha

Yes, your URL is incorrect. You should implement the AGSMapViewLayerDelegate's method to know why your layer fails to load.

Change,
http://egisws02.nos.noaa.gov/ArcGIS/rest/services/MP/MPA_Inventory_Fishing/MapServer/7
To,
http://egisws02.nos.noaa.gov/ArcGIS/rest/services/MPA/MPA_Inventory_Fishing/MapServer/7

Regards,
Nimesh

All comments

NimeshJarecha

Yes, it is possible to add multiple feature layers to map. You are seeing only one layer because you are adding one layer twice. 😞 Just change it as following...

[self.mapView addMapLayer:self.incidentsLayer withName:@Incidents];
[self.mapView addMapLayer:self.restrictedLayer withName:@Restricted];

Regards,
Nimesh

BrendanMcKenney

Hi Nimesh,

Thanks for the reply. I did have a simple mistake there, yes. I tried again tonight, and am still only getting one feature layer to show. I even tried adding a second feature layer to the RelatedRecordEditingSample and can still only get the first feature layer to show. Can you see anything that is wrong with this:

#import "RelatedRecordEditingSampleViewController.h"

#import <ArcGIS/ArcGIS.h>
#import "NotesViewController.h"
#import "LoadingView.h"

//this is the url for the basemap. 
#define kBaseMapServiceURL @"http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"

//url for the incidents layer
#define kIncidentsLayerURL @"http://egisws02.nos.noaa.gov/ArcGIS/rest/services/MPA/MPA_Inventory_Fishing/MapServer/1"



#pragma mark - Class Extension

@interface RelatedRecordEditingSampleViewController() 

@property (nonatomic, retain) IBOutlet AGSMapView *mapView;
@property (nonatomic, retain) AGSFeatureLayer *incidentsLayer;
@property (nonatomic, retain) AGSFeatureLayer *restrictedLayer;
@property (nonatomic, retain) AGSPopupsContainerViewController* popupVC;
@property (nonatomic, retain) UIBarButtonItem* customActionButton;
@property (nonatomic, retain) LoadingView* loadingView;

@end

#pragma mark - Implementation

@implementation RelatedRecordEditingSampleViewController


@synthesize mapView = _mapView;
@synthesize incidentsLayer = _incidentsLayer;
@synthesize popupVC = _popupVC;
@synthesize loadingView = _loadingView;
@synthesize customActionButton = _customActionButton;
@synthesize restrictedLayer = _restrictedLayer;


#pragma mark -  UIView methods

- (void)viewDidLoad {
    
    //creating a tiled service with the base map url
    NSURL *mapUrl = [NSURL URLWithString:kBaseMapServiceURL];
 AGSTiledMapServiceLayer *tiledLyr = [AGSTiledMapServiceLayer tiledMapServiceLayerWithURL:mapUrl];
    
    //add the tiled layer to the map view
 [self.mapView addMapLayer:tiledLyr withName:@Tiled Layer];
    
    //Zooming to an initial envelope with the specified spatial reference of the map.
    //this is the San Francisco extent. 
 AGSSpatialReference *sr = [AGSSpatialReference spatialReferenceWithWKID:102100];
 AGSEnvelope *env = [AGSEnvelope envelopeWithXmin:-13639984
                                                ymin:4537387
                                                xmax:-13606734
                                                ymax:4558866 
         spatialReference:sr];
 [self.mapView zoomToEnvelope:env animated:YES];
    
    //Set up the map view
 self.mapView.calloutDelegate = self;
 
    //setup the incidents layer as a feature layer and add it to the map
    self.incidentsLayer = [AGSFeatureLayer featureServiceLayerWithURL:[NSURL URLWithString:kIncidentsLayerURL] mode:AGSFeatureLayerModeOnDemand]; 
    self.incidentsLayer.outFields = [NSArray arrayWithObject:@*];
    self.incidentsLayer.infoTemplateDelegate = self.incidentsLayer;
    
    self.restrictedLayer = [AGSFeatureLayer featureServiceLayerWithURL:[NSURL URLWithString:@"http://egisws02.nos.noaa.gov/ArcGIS/rest/services/MP/MPA_Inventory_Fishing/MapServer/7"] mode:AGSFeatureLayerModeOnDemand];
    self.restrictedLayer.outFields = [NSArray arrayWithObject:@*];
    self.restrictedLayer.infoTemplateDelegate = self.restrictedLayer;
    
    [self.mapView addMapLayer:self.incidentsLayer withName:@Incidents];
     [self.mapView addMapLayer:self.restrictedLayer withName:@Restrictions];
    
    //setting the custom action button which will be later used to display related notes of an incident
//    self.customActionButton  = [[[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@pencil.png] style:UIBarButtonItemStyleBordered target:self action:@selector(displayIncidentNotes)] autorelease];
 
    [super viewDidLoad];
}

NimeshJarecha

BrendanMcKenney

Hi Nimesh,

Once again, a typo bites me in the butt. Thanks for pointing that out. I'll read up on AGSMapViewLayerDelegate method this weekend. Thanks again.

Brendan

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