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POunable to remove marker onTap
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  1. POunable to remove marker onTap
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    copied!<p>I'm developing an Android app where a user can add a marker tapping on the screen; it works, but i have a problem when I want to remove one of the markers by tapping it; here is my code (i followed the NooYawk example):</p> <pre><code>private class PoiOverlay extends ItemizedOverlay&lt;MyOverlayItem&gt;{ private ArrayList&lt;MyOverlayItem&gt; mOverlays = new ArrayList&lt;MyOverlayItem&gt;(); public PoiOverlay() { super(null); populate(); // TODO Auto-generated constructor stub } @Override protected boolean onTap(int index) { Log.d("toccato",":"+index); mOverlays.remove(index); doPopulate(); return true; } public boolean onTap(GeoPoint point, MapView view) { if (super.onTap(point, view)) return true; int icon; if (type==1) icon=R.drawable.bluedot; else icon=R.drawable.reddot; MyOverlayItem overlay=new MyOverlayItem(point, ""+id, ""+id, id, icon); addOverlay(overlay); doPopulate(); Poi poi=new Poi(id, point, type); pois.addLast(poi); inserted.addLast(id); id+=1; return true; } public void doPopulate(){ setLastFocusedIndex(-1); populate(); } public void addOverlay(MyOverlayItem overlay){ Drawable drawable=getMarker(overlay.markerInt); overlay.marker=drawable; mOverlays.add(overlay); populate(); } </code></pre> <p>But it doesn't work. I'm able to add markers, but when I try to remove one of them i get an Array out of bounds exception, and I don't know why.</p> <p>This is the excpetion I got when tapping on a marker:</p> <pre><code> 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): FATAL EXCEPTION: main 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:257) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at java.util.ArrayList.get(ArrayList.java:311) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.google.android.maps.ItemizedOverlay.getItem(ItemizedOverlay.java:419) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.google.android.maps.ItemizedOverlay.focus(ItemizedOverlay.java:538) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.google.android.maps.ItemizedOverlay.onTap(ItemizedOverlay.java:455) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at offscreen.tagger.Main$PoiOverlay.onTap(Main.java:280) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.google.android.maps.OverlayBundle.onTap(OverlayBundle.java:83) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.google.android.maps.MapView$1.onSingleTapUp(MapView.java:347) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.google.android.maps.GestureDetector.onTouchEvent(GestureDetector.java:533) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.google.android.maps.MapView.onTouchEvent(MapView.java:647) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.view.View.dispatchTouchEvent(View.java:3765) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:905) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:944) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:944) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:944) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:944) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1701) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1116) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.app.Activity.dispatchTouchEvent(Activity.java:2093) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1685) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.view.ViewRoot.handleMessage(ViewRoot.java:1802) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.os.Handler.dispatchMessage(Handler.java:99) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.os.Looper.loop(Looper.java:144) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at android.app.ActivityThread.main(ActivityThread.java:4937) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at java.lang.reflect.Method.invokeNative(Native Method) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at java.lang.reflect.Method.invoke(Method.java:521) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626) 02-04 22:17:29.418: ERROR/AndroidRuntime(9979): at dalvik.system.NativeStart.main(Native Method) </code></pre>
 

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