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这是我做的一个简短场景.
>我取得英国各地458个地点的纬度/经度.
>我运行循环,根据Android博客教程,我将它们添加到itemizedoverlay类中
>每50次迭代后,我调用publishProgress方法在地图中放置50个标记.
在第50次迭代之后,流程通过publishProgress进入onProgressupdate,这是我的onProgressupdate方法的代码
// MapOverLays = mapView.getOverlays(); //This line was called in asyc task's constructor // Hello Overlay is an instance of itemizedoverlay. mapOverlays.add(HelloOverLay); //MapView.getController - Also called in Constructor controller.setZoom(12); controller.animateTo(centerPoint); controller.setCenter(centerPoint);
此代码抛出ArrayIndexOutOfBoundException,并且logcat不显示我的模块中的任何类.如果它解释了我的问题,这是logcat转储.
12-07 11:34:48.644: ERROR/AndroidRuntime(508): java.lang.Arrayindexoutofboundsexception 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.google.android.maps.itemizedoverlay.geTindexToDraw(itemizedoverlay.java:211) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.google.android.maps.itemizedoverlay.draw(itemizedoverlay.java:240) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.google.android.maps.Overlay.draw(Overlay.java:179) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.google.android.maps.OverlayBundle.draw(OverlayBundle.java:42) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.google.android.maps.MapView.onDraw(MapView.java:476) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.View.draw(View.java:6535) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.drawChild(ViewGroup.java:1531) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.View.draw(View.java:6538) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.widget.FrameLayout.draw(FrameLayout.java:352) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.drawChild(ViewGroup.java:1531) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.drawChild(ViewGroup.java:1529) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.View.draw(View.java:6538) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.widget.FrameLayout.draw(FrameLayout.java:352) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1830) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewRoot.draw(ViewRoot.java:1349) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewRoot.performTraversals(ViewRoot.java:1114) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.view.ViewRoot.handlemessage(ViewRoot.java:1633) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.os.Handler.dispatchmessage(Handler.java:99) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.os.Looper.loop(Looper.java:123) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at android.app.ActivityThread.main(ActivityThread.java:4363) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at java.lang.reflect.Method.invokeNative(Native Method) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at java.lang.reflect.Method.invoke(Method.java:521) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 12-07 11:34:48.644: ERROR/AndroidRuntime(508): at dalvik.system.NativeStart.main(Native Method)
附:我已经使用相对较小(10)和相对较大(150)的迭代而不是50来测试应用程序.但应用程序抛出相同的错误.
public class ListOverlay extends itemizedoverlay<OverlayItem> { ... public synchronized void updateLOCATIOns(List<OverlayItem> newLOCATIOns) { LOCATIOns.clear(); LOCATIOns.addAll(newLOCATIOns); populate(); // this was missing } protected synchronized OverlayItem createItem(int indeX) { return LOCATIOns.get(indeX); } public synchronized int size() { return LOCATIOns.size(); } }
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