How to remove a layer from the map?

shipinlou8 · by **shipinlou8** » Wed Jul 16, 2008 10:39 am

There are several layers on my map and I want to remove one of them
the code I wrote are as follows:

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Using java Syntax Highlighting

 
                List<Overlay> layers = mOc.getOverlays();
 
                Overlay theLayer=null;
 
                for(int i=0;i<layers.size();i++) {
 
                        if(layers.get(i) instanceof DemoMyLayer){
 
                                theLayer=layers.get(i);
 
                                break;
 
                        }
 
                }
 
                if(theLayer!=null)
 
                        layers.remove(theLayer);
Parsed in 0.031 seconds,  using GeSHi 1.0.8.4

but the last line cause an exeption.
What should I do to remove an overlay?

plusminus · by **plusminus** » Wed Jul 16, 2008 2:16 pm

Hello shipinlou8,

the SDK-documentation says:

SDK-Documentation wrote:public List getOverlays()
Returns
* an unmodifiable list containing all overlays that have been added.

Maybe sth like this is what you are searching for:

Syntax: [ Download ] [ Hide ]

Using java Syntax Highlighting

          List<Overlay> layers = mOc.getOverlays();
 
          Overlay theLayer=null;
 
          final int overlayCount = layers.size();
 
          for(int i=0;i<overlayCount; i++) {
 
               if(layers.get(i) instanceof DemoMyLayer){
 
                    mOc.deactivate(theLayer);
 
                    break;
 
               }
 
          }
Parsed in 0.031 seconds,  using GeSHi 1.0.8.4

Regards,
plusminus

How to remove a layer from the map?

How to remove a layer from the map?

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