Android Eclipse圖形佈局問題

Question

我正在構建一個android應用程序，並且正在添加一個功能。在應用程序中，我們有一個使用的webview的子類。當我嘗試使用圖形化佈局編輯器，我得到讀取

com.android.layoutlib.bridge.MockView cannot be cast to android.view.ViewGroup 
Exception details are logged in Window > Show View > Error Log 
The following classes could not be instantiated: 
- com.my.web.view.WebView (Open Class, Show Error Log) 
See the Error Log (Window > Show View) for more details. 
Tip: Use View.isInEditMode() in your custom views to skip code when shown in Eclipse 

這裏的錯誤是在錯誤日誌中有什麼

java.lang.ClassCastException: com.android.layoutlib.bridge.MockView cannot be cast to android.view.ViewGroup 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:624) 
at android.view.LayoutInflater.rInflate(LayoutInflater.java:626) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:408) 
at android.view.LayoutInflater.inflate(LayoutInflater.java:296) 
at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:279) 
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:318) 
at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:325) 
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderService.createRenderSession(RenderService.java:372) 
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.renderWithBridge(GraphicalEditorPart.java:1361) 
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.recomputeLayout(GraphicalEditorPart.java:1115) 
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.activated(GraphicalEditorPart.java:941) 
at com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditorDelegate.delegatePageChange(LayoutEditorDelegate.java:450) 
at com.android.ide.eclipse.adt.internal.editors.common.CommonXmlEditor.pageChange(CommonXmlEditor.java:358) 
at org.eclipse.ui.part.MultiPageEditorPart.setActivePage(MultiPageEditorPart.java:1067) 
at org.eclipse.ui.forms.editor.FormEditor.setActivePage(FormEditor.java:607) 
at com.android.ide.eclipse.adt.internal.editors.AndroidXmlEditor.selectDefaultPage(AndroidXmlEditor.java:380) 
at com.android.ide.eclipse.adt.internal.editors.AndroidXmlEditor.addPages(AndroidXmlEditor.java:285) 
at com.android.ide.eclipse.adt.internal.editors.common.CommonXmlEditor.addPages(CommonXmlEditor.java:283) 
at org.eclipse.ui.forms.editor.FormEditor.createPages(FormEditor.java:138) 
at org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:348) 
at org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:670) 
at org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:465) 
at org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595) 
at org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:289) 
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2863) 
at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2768) 
at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2760) 
at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2711) 
at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) 
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2707) 
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2691) 
at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2682) 
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:651) 
at org.eclipse.ui.ide.IDE.openEditor(IDE.java:610) 
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:365) 
at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:168) 
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:229) 
at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:208) 
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:274) 
at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:250) 
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:373) 
at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:526) 
at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48) 
at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:845) 
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) 
at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) 
at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) 
at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:843) 
at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1131) 
at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1235) 
at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:264) 
at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:258) 
at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:298) 
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) 
at org.eclipse.swt.widgets.Display.sendEvent(Display.java:3783) 
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1375) 
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1398) 
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1383) 
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:1195) 
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3629) 
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3284) 
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640) 
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604) 
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438) 
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671) 
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) 
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664) 
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) 
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115) 
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) 
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) 
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369) 
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620) 
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575) 
at org.eclipse.equinox.launcher.Main.run(Main.java:1408) 

我已經看到了一些類似的問題，但沒有任何職位這些解決方案適用於我。我試圖改變我的渲染模式到各種不同版本的Android操作系統無濟於事。此外，我正在xml中使用我的對象的完全限定路徑。還有其他解決方案嗎？那些是我發現最多的兩個。

謝謝先進。

Answer 1

您是否看到另一個標有"org.example.myView failed to instantiate."的錯誤？ （當然，有你自己的觀點的課程名稱）。這應該給你更多關於錯誤的細節。