android - 缩小时 OSMDroid 崩溃

Question

我在我的应用程序中添加了一个 OSMDroid map ，它工作正常，但如果我缩小，它就会崩溃。

我在用户当前位置加载 map 时添加一个项目，并在加载 map 后在 AsyncTask 中再加载 10 个项目。

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更新:工作解决方案

在下面的旧代码中，我在用户位置的 map 上添加了一个“基础”项目，并为 map 创建了一个 ItemizedItemOverlay。然后我加载了更多 OverlayItems 并将它们添加到列表中，但它们没有出现在 map 上。

现在我在 AsyncTask 加载完所有项目后创建 ItemizedItemOverlay，现在项目都可见，OnItemSingleTapUp 按预期工作，双击 map 也可以正常工作，并且不会再发生崩溃。我仍然不知道是什么导致了崩溃，但它是这样工作的。

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可能的问题:
OverlayItems 列表是用零个对象初始化的(很明显)，但是在我添加一个 OverlayItem 之后，它包含 1 个 OverlayItem + 11 个以上的空对象(或空引用？空项目？正确的术语是什么？)编辑: 没有引起问题，仍然很奇怪。

编辑:似乎只有在添加更多项目时我才会崩溃。

这是我的完整代码和 Logcat:

mResourceProxy = new DefaultResourceProxyImpl(getApplicationContext());

mapView.setTileSource(TileSourceFactory.MAPNIK);
mapView.setBuiltInZoomControls(true);
mapView.setMultiTouchControls(true);
mapController = this.mapView.getController();
mapController.setZoom(25);
GeoPoint center = new GeoPoint(DataManager.glat, DataManager.glon);
mapController.setCenter(center);
mLocMgr = (LocationManager) getSystemService(LOCATION_SERVICE);

mLocMgr.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 100,
        this);

items = new ArrayList<OverlayItem>(); // items now null
items.add(new OverlayItem("Here", "SampleDescription", center));
// items now contains 1 OverlayItem and 11 null-items

this.mLocationOverlay = new ItemizedIconOverlay<OverlayItem>(items,
new ItemizedIconOverlay.OnItemGestureListener<OverlayItem>() {
            @Override
            public boolean onItemSingleTapUp(final int index,
                    final OverlayItem item) {

                Intent intent=new Intent();
                intent.putExtra("newShopName", item.mTitle);
                intent.putExtra("newShopAdd", item.mDescription);
                setResult(RESULT_OK, intent);
                finish(); 

                return true; 
            }
            @Override
            public boolean onItemLongPress(final int index,
                    final OverlayItem item) {

                toast = Toast.makeText(ShopChooseActivity.this, item.mTitle + ", " + item.mDescription, Toast.LENGTH_LONG);
                toast.show();
                return false;
            }
        }, mResourceProxy);

this.mapView.getOverlays().add(this.mLocationOverlay);
mapView.invalidate();

这里我调用 AsyncTask:

loadMap = new LoadChooseShop(ShopChooseActivity.this, items).execute();

在这里我“刷新”了 map :

@Override
    public void onTaskCompleted(int returncode) {
        try {
            items = loadMap.get();

            if(items != null)
            mapView.invalidate();
            else {
                Toast.makeText(getApplicationContext(), R.string.error_connectionfailure , Toast.LENGTH_LONG).show();
                setResult(RESULT_CANCELED);
                finish();
            }
        } catch (InterruptedException e) {
        } catch (ExecutionException e) {
        }
    }

和 XML:

 <org.osmdroid.views.MapView xmlns:android="http://schemas.android.com/apk/res/android"
                        android:id="@+id/mapview"
                        android:layout_width="fill_parent"
                        android:layout_height="fill_parent"/>

大修改:我的大部分问题现在都已解决，但它仍然会崩溃。

当我在 map 上双击时它总是崩溃，但不仅如此。如果我将 clickable=true 添加到 XML，它不会再崩溃，但我无法移动 map 。

日志:

07-15 14:41:16.339: E/InputEventReceiver(17302): Exception dispatching input event.
07-15 14:41:16.339: E/MessageQueue-JNI(17302): Exception in MessageQueue callback: handleReceiveCallback
07-15 14:41:16.404: E/MessageQueue-JNI(17302): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at java.util.ArrayList.get(ArrayList.java:304)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at org.osmdroid.views.overlay.ItemizedOverlay.getItem(ItemizedOverlay.java:157)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at org.osmdroid.views.overlay.ItemizedIconOverlay.activateSelectedItems(ItemizedIconOverlay.java:170)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at org.osmdroid.views.overlay.ItemizedIconOverlay.onSingleTapUp(ItemizedIconOverlay.java:117)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at org.osmdroid.views.overlay.OverlayManager.onSingleTapUp(OverlayManager.java:291)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at org.osmdroid.views.MapView$MapViewGestureDetectorListener.onSingleTapUp(MapView.java:1539)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.GestureDetector.onTouchEvent(GestureDetector.java:1344)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at org.osmdroid.views.MapView.dispatchTouchEvent(MapView.java:904)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2115)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1468)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.app.Activity.dispatchTouchEvent(Activity.java:2487)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2063)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.View.dispatchPointerEvent(View.java:7520)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3376)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3308)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4402)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4380)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4484)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.os.MessageQueue.nativePollOnce(Native Method)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.os.MessageQueue.next(MessageQueue.java:125)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.os.Looper.loop(Looper.java:124)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at android.app.ActivityThread.main(ActivityThread.java:4898)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at java.lang.reflect.Method.invokeNative(Native Method)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at java.lang.reflect.Method.invoke(Method.java:511)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
07-15 14:41:16.404: E/MessageQueue-JNI(17302):  at dalvik.system.NativeStart.main(Native Method)
07-15 14:41:21.914: D/AndroidRuntime(17302): Shutting down VM
07-15 14:41:21.914: W/dalvikvm(17302): threadid=1: thread exiting with uncaught exception (group=0x417cc2a0)
07-15 14:41:21.984: E/AndroidRuntime(17302): FATAL EXCEPTION: main
07-15 14:41:21.984: E/AndroidRuntime(17302): java.lang.IndexOutOfBoundsException: Invalid index 1, size is 1
07-15 14:41:21.984: E/AndroidRuntime(17302):    at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:251)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at java.util.ArrayList.get(ArrayList.java:304)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at org.osmdroid.views.overlay.ItemizedOverlay.getItem(ItemizedOverlay.java:157)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at org.osmdroid.views.overlay.ItemizedIconOverlay.activateSelectedItems(ItemizedIconOverlay.java:170)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at org.osmdroid.views.overlay.ItemizedIconOverlay.onSingleTapUp(ItemizedIconOverlay.java:117)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at org.osmdroid.views.overlay.OverlayManager.onSingleTapUp(OverlayManager.java:291)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at org.osmdroid.views.MapView$MapViewGestureDetectorListener.onSingleTapUp(MapView.java:1539)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.GestureDetector.onTouchEvent(GestureDetector.java:1344)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at org.osmdroid.views.MapView.dispatchTouchEvent(MapView.java:904)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2416)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2159)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2115)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1468)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.app.Activity.dispatchTouchEvent(Activity.java:2487)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2063)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.View.dispatchPointerEvent(View.java:7520)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewRootImpl.deliverPointerEvent(ViewRootImpl.java:3376)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:3308)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:4402)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:4380)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:4484)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:171)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.os.MessageQueue.nativePollOnce(Native Method)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.os.MessageQueue.next(MessageQueue.java:125)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.os.Looper.loop(Looper.java:124)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at android.app.ActivityThread.main(ActivityThread.java:4898)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at java.lang.reflect.Method.invokeNative(Native Method)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at java.lang.reflect.Method.invoke(Method.java:511)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1006)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:773)
07-15 14:41:21.984: E/AndroidRuntime(17302):    at dalvik.system.NativeStart.main(Native Method)

更新:如果我不添加更多项目(不调用 AsyncTask)，则点击该项目会起作用并提供预期结果 - 但如果我添加更多项目，它会在点击时崩溃。 (点击同一个项目，其他项目甚至不可见)

Answer 1

在您上次的编辑中，您发布了完整的堆栈跟踪 - 谢谢，这就是我们所需要的。我会忽略“错误下载磁贴”，因为这不是导致您的应用程序崩溃的原因。崩溃发生在“IndexOutOfBoundsException”中。您的问题因信息过多而开始失控 - 让我们将其简化并隔离问题。当崩溃发生时你在做什么 - 你在你的问题中说当你双击时它会发生但异常与 ItemizedIconOverlay 和 onSingleTapUp 有关。一些尝试:

1. 如果不使用 ItemizedIconOverlay 会崩溃吗？
2. 如果您不向 ItemizedIconOverlay 添加任何项目，它会崩溃吗？
3. 查看 ItemizedItemOverlay，如果将 onSingleTapUp() 中的所有代码移至 onSingleTapConfirmed() 会怎样？那才是真正属于它的地方。如果您不想从源代码重建 osmdroid，那么您应该能够扩展 ItemizedIconOverlay 并覆盖这两种方法 - 在 onSingleTapUp() 中返回 false 并将该方法中的所有旧代码放入 onSingleTapConfirmed。我刚刚为那个 Issue 450 添加了一张票.
4. 你说当你双击放大时它会崩溃，那么当你只是点击一个项目时呢？那它会崩溃吗？确保在放大时没有添加新项目。

因此 ItemizedOverlay 通过调用 size() 来工作，然后它为每个项目调用 getMarker(index)。出于某种原因，您的 ItemizedOverlay 认为它只有一个项目时有 2 个项目。也许如果您设置一些断点，特别是在 addItem() 或 addItems() 和 size() 中。也许，连同上述问题的答案，会提供一些线索!