CODEWITHSUNDEEP
swift
javierdemartin
javierdemartin

Reputation: 645

Create an array of MKPointAnnotation objects

Currently working with Map Views and adding pins to the map. I know how to add a single point to the map using addAnotation() method. Now, I am trying to add multiple points to the MapView in the easiest way. I've fetched the data (latitude, longitude and name from an online XML file) and stored it in an array and now I want to add all those coordinates+name as pins in the map. For doing so I've declared an array of MKPointAnnotation objects like so:

var pinsArray: [MKPointAnnotation] = []

And then for dumping the collected data to I've done the following:

    for i in 0...(myFeed.count-1) {

        pinsArray[i].title = myFeed.objectAtIndex(i).objectForKey("NOMBRE")!.stringValue
        pinsArray[i].coordinate = CLLocationCoordinate2D(latitude: myFeed[i].objectForKey("LATITUD")!.doubleValue, longitude: myFeed[i].objectForKey("LONGITUD")!.doubleValue)
        pinsArray[i].subtitle = ""

        mapView.addAnnotation(pinsArray[i])   
    }

But when I run the app I get an error saying that the array index is out of range (fatal error: Array index out of range). I guess this is a problem on the declaration of the pinsArray, I do not really know how to solve this one.

Upvotes: 0

Views: 1588

Answers (1)

gagarwal
gagarwal

Reputation: 4244

Try this:

var pinsArray: [MKPointAnnotation] = []

for i in 0...(myFeed.count-1)
{
    let pointAnnotation = MKPointAnnotation() // First create an annotation.

    pointAnnotation.title = myFeed.objectAtIndex(i).objectForKey("NOMBRE")!.stringValue
    pointAnnotation.coordinate = CLLocationCoordinate2D(latitude: myFeed[i].objectForKey("LATITUD")!.doubleValue, longitude: myFeed[i].objectForKey("LONGITUD")!.doubleValue)
    pointAnnotation.subtitle = ""

    pinsArray.append(pointAnnotation) // Now append this newly created annotation to array.
}

mapView.addAnnotations(pinsArray) // Add all the annotations to map view at once.

Upvotes: 1

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