eclipse android.support.v7.widget.RecyclerView 实例化失败
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android.support.v7.widget.RecyclerView failed to instantiate
提问by Rulogarcillan
I created an Android application project in eclipse for APIs 15-21.
我在 Eclipse 中为 API 15-21 创建了一个 Android 应用程序项目。
I imported libraries of appCompat v7, cardView and recyclerView but on adding recyclerView in my XML it gives android.support.v7.widget.RecyclerViewfailed to instantiate.
我导入了 appCompat v7、cardView 和 recyclerView 库，但是在我的 XML 中添加 recyclerView 时，它导致android.support.v7.widget.RecyclerView无法实例化。
I have the latest SDK with updated libraries.
我有带有更新库的最新 SDK。
java.lang.UnsupportedOperationException: Unsupported Service: accessibility
at com.android.layoutlib.bridge.android.BridgeContext.getSystemService(BridgeContext.java:465)
at android.support.v7.widget.RecyclerView.<init>(RecyclerView.java:290)
at android.support.v7.widget.RecyclerView.<init>(RecyclerView.java:266)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.instantiateClass(ProjectCallback.java:442)
at com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.loadView(ProjectCallback.java:194)
at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:207)
at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:132)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:806)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:64)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:782)
at android.view.LayoutInflater.inflate(LayoutInflater.java:504)
at android.view.LayoutInflater.inflate(LayoutInflater.java:385)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:401)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:329)
at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:332)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderService.createRenderSession(RenderService.java:517)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.renderWithBridge(GraphicalEditorPart.java:1584)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.recomputeLayout(GraphicalEditorPart.java:1309)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart$ReloadListener.reloadLayoutSwt(GraphicalEditorPart.java:1817)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart$ReloadListener.accessmRecyclerView.setLayoutManager(new LinearLayoutManager(context));
(GraphicalEditorPart.java:1755)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart$ReloadListener.run(GraphicalEditorPart.java:1749)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:136)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4147)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3764)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1151)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:148)
at org.eclipse.ui.internal.Workbench.run(Workbench.java:636)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:579)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:135)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235)
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:648)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603)
at org.eclipse.equinox.launcher.Main.run(Main.java:1465)
回答by cybersam
This issue was finally fixed in the API Level 22 SDK Manager and RecyclerView support library. To quote this commentin the relevant Android issue (which was closed on March 11, 2015), you need to:
这个问题最终在 API Level 22 SDK Manager 和 RecyclerView 支持库中得到修复。要在相关的 Android 问题（已于 2015 年 3 月 11 日关闭）中引用此评论，您需要：
... update to the latest SDK platform for API 22 via the SDK Manager, and update to the latest recycler view by updating the Support repository via the SDK Manager, and in your build.gradle file to use the latest version (22.0.0)
...通过 SDK 管理器更新到 API 22 的最新 SDK 平台，并通过 SDK 管理器更新支持存储库更新到最新的回收器视图，并在您的 build.gradle 文件中使用最新版本 (22.0.0 )
In addition, at the top of the designer tool, you need to select API Android version 22. If you pick an earlier version, you will continue to see the error, even though you have the latest support library.
此外，在设计器工具的顶部，您需要选择 API Android 版本 22。如果您选择较早的版本，即使您拥有最新的支持库，也会继续看到错误。
回答by pdegand59
Is this a problem on the preview window or at runtime ?
这是预览窗口或运行时的问题吗？
RecyclerView needs a LayoutManager to be rendered.
RecyclerView 需要一个 LayoutManager 来渲染。
In you Java code, add the following :
在您的 Java 代码中，添加以下内容：
##代码##回答by Bunyod
You need to add android-support-v7-recyclerview.jar file. It located in sdk\extras\android\support\v7\recyclerview\libs
您需要添加 android-support-v7-recyclerview.jar 文件。它位于sdk\extras\android\support\v7\recyclerview\libs
