Android 2.1 GoogleMaps ItemizedOverlay ConcurrentModificationException

Question

May 20, 2010, 05:00 AM

itemizedoverlay android-mapview google-maps concurrency android

Android 2.1 GoogleMaps ItemizedOverlay ConcurrentModificationException

Ich kann den Ursprung des @ nicht herausfindConcurrentModificationException. In meinemactivity Ich rufe anupdateMapOverlay(). Ich rufe auchupdateMapOverlay() in einem anderen Thread (einTimerTask), das in regelmäßigen Abständen aufgerufen wird. Beim Aufrufen von @ werden die entsprechenden Sperren aktivierupdateMapOverlay() von beiden Threads. Wird dieses Problem verursacht, weil ich @ aufrufupdateMapOverlay aus einem Nicht-UI-Thread (d. h.TimerTask). Hat jemand ein ähnliches Problem gehabt?

private void updateMapOverlay() {

<pre><code>    this.itemizedOverlay.refreshItems(createOverlayItemsList());
    List<Overlay> overlays = mapView.getOverlays();
    overlays.clear();
    overlays.add(cotItemizedOverlay);
            this.mapview.invalidate();

}
</code></pre>

Vielen Dank

Ausnahm:

W/dalvikvm(10641): threadid=3: thread exiting with uncaught exception (group=0x4001b180)
E/AndroidRuntime(10641): Uncaught handler: thread main exiting due to uncaught exception
E/AndroidRuntime(10641): java.util.ConcurrentModificationException
E/AndroidRuntime(10641):    at java.util.AbstractList$SimpleListIterator.next(AbstractList.java:64)
E/AndroidRuntime(10641):    at com.google.android.maps.OverlayBundle.draw(OverlayBundle.java:41)
E/AndroidRuntime(10641):    at com.google.android.maps.MapView.onDraw(MapView.java:494)
E/AndroidRuntime(10641):    at android.view.View.draw(View.java:6535)
E/AndroidRuntime(10641):    at android.view.ViewGroup.drawChild(ViewGroup.java:1531)
E/AndroidRuntime(10641):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
E/AndroidRuntime(10641):    at android.view.ViewGroup.drawChild(ViewGroup.java:1529)
E/AndroidRuntime(10641):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
E/AndroidRuntime(10641):    at android.view.View.draw(View.java:6538)
E/AndroidRuntime(10641):    at android.widget.FrameLayout.draw(FrameLayout.java:352)
E/AndroidRuntime(10641):    at android.view.ViewGroup.drawChild(ViewGroup.java:1531)
E/AndroidRuntime(10641):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
E/AndroidRuntime(10641):    at android.view.ViewGroup.drawChild(ViewGroup.java:1529)
E/AndroidRuntime(10641):    at android.view.ViewGroup.dispatchDraw(ViewGroup.java:1258)
E/AndroidRuntime(10641):    at android.view.View.draw(View.java:6538)
E/AndroidRuntime(10641):    at android.widget.FrameLayout.draw(FrameLayout.java:352)
E/AndroidRuntime(10641):    at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:1830)
E/AndroidRuntime(10641):    at android.view.ViewRoot.draw(ViewRoot.java:1349)
E/AndroidRuntime(10641):    at android.view.ViewRoot.performTraversals(ViewRoot.java:1114)
E/AndroidRuntime(10641):    at android.view.ViewRoot.handleMessage(ViewRoot.java:1633)
E/AndroidRuntime(10641):    at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(10641):    at android.os.Looper.loop(Looper.java:123)
E/AndroidRuntime(10641):    at android.app.ActivityThread.main(ActivityThread.java:4363)
E/AndroidRuntime(10641):    at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(10641):    at java.lang.reflect.Method.invoke(Method.java:521)
E/AndroidRuntime(10641):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
E/AndroidRuntime(10641):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
E/AndroidRuntime(10641):    at dalvik.system.NativeStart.main(Native Method)
I/Process (   95): Sending signal. PID: 10641 SIG: 3