CODEWITHSUNDEEP
javaandroiddictionaryitemizedoverlay
lyk
lyk

Reputation: 1598

.add() method in List is not applicable for argument

I'm trying to use mapsforge to do a display maps on my phone.

Currently I'm having slight problems with regards to adding an overlay to display pins. This is the code that gives an error:

ArrayItemizedOverlay itemizedOverlay = new ArrayItemizedOverlay(defaultMarker, true);
myOpenMapView.getOverlays().add(itemizedOverlay);

getOverlays() will return List, as stated here

This line gives this error: 

 "The method add(Overlay) in the type List<Overlay> is not applicable for the arguments (ArrayItemizedOverlay)"

which is what I don't really understand is why the .add() method is invalid in this case, since ArrayItemizedOverlay class is a subclass of the Overlay class.

These are the class definitions and I hope someone can enlighten me what I can do so that the .add() method will accept the object.

ArrayItemizedOverlay

public class ArrayItemizedOverlay extends ItemizedOverlay<OverlayItem> {
    //codes....
}

ItemizedOverlay

public abstract class ItemizedOverlay<Item extends OverlayItem> extends Overlay {
    //codes...
}

Feel free to point out any missing information which you may need, thanks!

Upvotes: 0

Views: 2102

Answers (2)

gshank
gshank

Reputation: 68

Were you able to find out the complete path of the calsses and interfaces used?

public List<Overlay> getOverlays()

returns a list of 

public interface org.mapsforge.android.maps.overlay.Overlay

But the code base has a different overlay class

public abstract class Overlay extends Thread {

Is there an older version in the classpath? You probably have to cleanup the older JARs/APIs and make sure it refers to the correct overlay class.

Upvotes: 2

Lionel P&#232;re
Lionel P&#232;re

Reputation: 543

Use the method addAll() of List to add a Collection of Object.

Upvotes: 0

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