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我使用 Flash Builder 4.6 和 openscales 2.2 构建了一个移动应用程序

我使用了openscales 1.2.1，它工作得很好，但是速度很慢，缩放效果也不好。

所以我想升级到openscales 2.2。我将 .swc 添加到我的 libs 文件夹中，并将 FeatureLayer 更改为 VectorLayer，因为它在新版本中已重命名。

如果我测试应用程序，调试器会给我以下错误：

TypeError: Error #1009: Cannot access a property or method of a null object reference.
    at org.openscales.core::Map()[D:\workspace\openscales\target\checkout\openscales-core\src\main\flex\org\openscales\core\Map.as:296]
    at org.openscales.fx::FxMap()[D:\workspace\openscales\target\checkout\openscales-fx\src\main\flex\org\openscales\fx\FxMap.as:70]
    at views::mapView/_mapView_FxMap1_i()
    at views::mapView/_mapView_Array1_c()
    at mx.core::DeferredInstanceFromFunction/getInstance()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\DeferredInstanceFromFunction.as:108]
    at spark.components::SkinnableContainer/createDeferredContent()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:1049]
    at spark.components::SkinnableContainer/createContentIfNeeded()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:1078]
    at spark.components::SkinnableContainer/createChildren()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:885]
    at mx.core::UIComponent/initialize()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:7634]
    at spark.components::View/initialize()[E:\dev\4.y\frameworks\projects\mobilecomponents\src\spark\components\View.as:999]
    at views::mapView/initialize()
    at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::childAdded()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:7495]
    at mx.core::UIComponent/addChildAt()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:7199]
    at spark.components::Group/addDisplayObjectToDisplayList()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:2037]
    at spark.components::Group/http://www.adobe.com/2006/flex/mx/internal::elementAdded()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:1628]
    at spark.components::Group/addElementAt()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:1387]
    at spark.components::Group/addElement()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\Group.as:1345]
    at spark.components::SkinnableContainer/addElement()[E:\dev\4.y\frameworks\projects\spark\src\spark\components\SkinnableContainer.as:761]
    at spark.components::ViewNavigator/createViewInstance()[E:\dev\4.y\frameworks\projects\mobilecomponents\src\spark\components\ViewNavigator.as:2018]
    at spark.components::ViewNavigator/commitNavigatorAction()[E:\dev\4.y\frameworks\projects\mobilecomponents\src\spark\components\ViewNavigator.as:1932]
    at spark.components::ViewNavigator/commitProperties()[E:\dev\4.y\frameworks\projects\mobilecomponents\src\spark\components\ViewNavigator.as:1301]
    at mx.core::UIComponent/validateProperties()[E:\dev\4.y\frameworks\projects\framework\src\mx\core\UIComponent.as:8219]
    at mx.managers::LayoutManager/validateProperties()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:597]
    at mx.managers::LayoutManager/doPhasedInstantiation()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:813]
    at mx.managers::LayoutManager/doPhasedInstantiationCallback()[E:\dev\4.y\frameworks\projects\framework\src\mx\managers\LayoutManager.as:1180]

D:\workspace\openscales\target\checkout\openscales-core\src\main\flex\org\openscales\core\Map.as:296] 这行真的很奇怪，因为我的电脑上没有这个文件夹正因为如此，我认为 openscales 的 .swc 中存在错误的路径？

最好的问候珍妮

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1 回答 1

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我有同样的问题，我在我的mac上用错误的windows路径ORZ创建了项目....但是在阅读了源代码后问题已经解决了。在名为“org.openscales.core.Map.as”的类文件中，大约第 300 行。

var menu:ContextMenu = new ContextMenu();
menu.hideBuiltInItems();

var notice:ContextMenuItem = new ContextMenuItem("Powered by OpenScales");
notice.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, openLink);
menu.customItems.push(notice);
contextMenu = menu;

空中移动应用程序不支持 contextMenu。所以，只需评论它们并重建 openscales 库。祝你好运。

于 2013-07-31T16:45:24.990 回答