Eclipse的ADT插件中的布局编辑器中的ClassCastException

时间:2010-08-08 04:50:53

标签: android eclipse-plugin android-manifest

这可能与this question有关。我想知道是否有其他人得到与我相同的错误,如果有办法解决这个问题。

我做了以下事情:

  • 按照this page的说明操作。
  • 从顶部开始,转到文件 - >创建一个新项目 - > Android项目 - >从现有样本创建项目。
  • 检查Android 2.2。
  • 从下拉菜单中选择SkeletonApp。
  • 点击完成。
  • 从软件包资源管理器中,转到SkeletonActivity - > res - >布局 - > skeleton_activity.xml。
  • 在编辑器区域底部的选项卡中(编辑器区域是屏幕的中心),单击“布局”。

然后我收到错误“ClassCastException:android.widget.EditText无法转换为andoid.text.ViewGroup”。错误消息的全文如下所示。

java.lang.ClassCastException: android.widget.EditText cannot be cast to android.view.ViewGroup
at android.view.LayoutInflater.rInflate(LayoutInflater.java:619)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:621)
at android.view.LayoutInflater.inflate(LayoutInflater.java:407)
at android.view.LayoutInflater.inflate(LayoutInflater.java:296)
at com.android.layoutlib.bridge.Bridge.computeLayout(Bridge.java:397)
at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor.computeLayout(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor.recomputeLayout(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor.onConfigurationChange(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor.onTargetChange(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditor.onDescriptorsChanged(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditor.initUiRootNode(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor$1.updateEditor(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.gle1.GraphicalLayoutEditor$1.onTargetLoaded(Unknown Source)
at com.android.ide.eclipse.adt.AdtPlugin$16.run(Unknown Source)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2629)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2593)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2427)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:670)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:663)
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(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)

1 个答案:

答案 0 :(得分:3)

不确定您是否已经过了这个错误,但对于那些没有错过的人来说:

有问题的代码在这里:

<EditText android:id="@+id/editor"
    android:layout_width="fill_parent" android:layout_height="0dip"
    android:autoText="true"
    android:capitalize="sentences"
    android:layout_weight="1"
    android:freezesText="true" >
    <requestFocus />
</EditText>

我不知道为什么但是通过反复试验是导致问题的requestFocus元素。删除该行,布局视图将再次起作用。