Android的 - 不支持的服务：声音 [英] Android - Unsupported Service: audio

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问题描述

我想了解和解决和错误我看到在Eclipse工作空间日志，当工作在一个Android应用程序，实现了输入法。我是新来的Android和Eclipse。

I am trying to understand and resolve and error I am seeing in the Eclipse workspace log while working on an Android app that implements an IME. I am new to Android and Eclipse.

该错误是com.utterkaos.keyboard.LatinKeyboardView失败的实例。

The error is "com.utterkaos.keyboard.LatinKeyboardView failed to instantiate."

相关联的堆栈跟踪是：

java.lang.UnsupportedOperationException：不支持的服务：声音在 com.android.layoutlib.bridge.android.BridgeContext.getSystemService（BridgeContext.java:434）在 android.inputmethodservice.KeyboardView（KeyboardView.java:376）在 android.inputmethodservice.KeyboardView（KeyboardView.java:279）在 com.utterkaos.keyboard.LatinKeyboardView（LatinKeyboardView.java:30）在sun.reflect.NativeConstructorAccessorImpl.newInstance0（母语法）以 sun.reflect.NativeConstructorAccessorImpl.newInstance（来源不明）在sun.reflect.DelegatingConstructorAccessorImpl.newInstance（未知源）以java.lang.reflect.Constructor.newInstance（来源不明）在 com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.instantiateClass(ProjectCallback.java:402) 在 com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.loadView(ProjectCallback.java:166) 在 android.view.BridgeInflater.loadCustomView（BridgeInflater.java:207）在 android.view.BridgeInflater.createViewFromTag（BridgeInflater.java:135）在android.view.LayoutInflater.inflate（LayoutInflater.java:466）在 android.view.LayoutInflater.inflate（LayoutInflater.java:372）在 com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate（RenderSessionImpl.java:321）在com.android.layoutlib.bridge.Bridge.createSession（Bridge.java:324）在 com.android.ide.common.rendering.LayoutLibrary.createSession（LayoutLibrary.java:325）在 com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderService.createRenderSession(RenderService.java:372) 在 com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.renderWithBridge(GraphicalEditorPart.java:1361) 在 com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.recomputeLayout(GraphicalEditorPart.java:1115) 在 com.android.ide.eclipse.adt.internal.editors.layout.gle2.GraphicalEditorPart.activated(GraphicalEditorPart.java:941) 在 com.android.ide.eclipse.adt.internal.editors.layout.LayoutEditorDelegate.delegatePageChange(LayoutEditorDelegate.java:450) 在 com.android.ide.eclipse.adt.internal.editors.common.CommonXmlEditor.pageChange(CommonXmlEditor.java:358) 在 org.eclipse.ui.part.MultiPageEditorPart.setActivePage（MultiPageEditorPart.java:1067）在 org.eclipse.ui.forms.editor.FormEditor.setActivePage（FormEditor.java:607）在 com.android.ide.eclipse.adt.internal.editors.AndroidXmlEditor.selectDefaultPage(AndroidXmlEditor.java:380) 在 com.android.ide.eclipse.adt.internal.editors.AndroidXmlEditor.addPages（AndroidXmlEditor.java:285）在 com.android.ide.eclipse.adt.internal.editors.common.CommonXmlEditor.addPages(CommonXmlEditor.java:283) 在 org.eclipse.ui.forms.editor.FormEditor.createPages（FormEditor.java:138）在 org.eclipse.ui.part.MultiPageEditorPart.createPartControl（MultiPageEditorPart.java:348）在 org.eclipse.ui.internal.EditorReference.createPartHelper（EditorReference.java:670）在 org.eclipse.ui.internal.EditorReference.createPart（EditorReference.java:465）在 org.eclipse.ui.internal.WorkbenchPartReference.getPart（WorkbenchPartReference.java:595）在 org.eclipse.ui.internal.EditorReference.getEditor（EditorReference.java:289）在 org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched（WorkbenchPage.java:2945）在 org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor（WorkbenchPage.java:2850）在 org.eclipse.ui.internal.WorkbenchPage.access $ 11（WorkbenchPage.java:2842）在 org.eclipse.ui.internal.WorkbenchPage $ 10.run（WorkbenchPage.java:2793）在 org.eclipse.swt.custom.BusyIndicator.showWhile（BusyIndicator.java:70）在 org.eclipse.ui.internal.WorkbenchPage.openEditor（WorkbenchPage.java:2789）在 org.eclipse.ui.internal.WorkbenchPage.openEditor（WorkbenchPage.java:2773）在 org.eclipse.ui.internal.WorkbenchPage.openEditor（WorkbenchPage.java:2764）在org.eclipse.ui.ide.IDE.openEditor（IDE.java:651）在 org.eclipse.ui.ide.IDE.openEditor（IDE.java:610）在 org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor（EditorUtility.java:355）在 org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor（EditorUtility.java:164）在org.eclipse.jdt.ui.actions.OpenAction.run（OpenAction.java:249）在 org.eclipse.jdt.ui.actions.OpenAction.run（OpenAction.java:228）在 org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun（SelectionDispatchAction.java:275）在 org.eclipse.jdt.ui.actions.SelectionDispatchAction.run（SelectionDispatchAction.java:251）在 org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:376) 在 org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart $ 4.打开（PackageExplorerPart.java:538）在 org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48) 在 org.eclipse.jface.viewers.StructuredViewer $ 2.运行（StructuredViewer.java:866）在org.eclipse.core.runtime.SafeRunner.run（SafeRunner.java:42）在 org.eclipse.ui.internal.JFaceUtil $ 1.运行（JFaceUtil.java:49）在 org.eclipse.jface.util.SafeRunnable.run（SafeRunnable.java:175）在 org.eclipse.jface.viewers.StructuredViewer.fireOpen（StructuredViewer.java:864）在 org.eclipse.jface.viewers.StructuredViewer.handleOpen（StructuredViewer.java:1152）在 org.eclipse.jface.viewers.StructuredViewer $ 6.handleOpen（StructuredViewer.java:1256）在 org.eclipse.jface.util.OpenStrategy.fireOpenEvent（OpenStrategy.java:275）在 org.eclipse.jface.util.OpenStrategy.access $ 2（OpenStrategy.java:269）在 org.eclipse.jface.util.OpenStrategy $ 1.handleEvent（OpenStrategy.java:309）在org.eclipse.swt.widgets.EventTable.sendEvent（EventTable.java:84）在org.eclipse.swt.widgets.Widget.sendEvent（Widget.java:1053）在 org.eclipse.swt.widgets.Display.runDeferredEvents（Display.java:4165）在org.eclipse.swt.widgets.Display.readAndDispatch（Display.java:3754）在 org.eclipse.ui.internal.Workbench.runEventLoop（Workbench.java:2701）在org.eclipse.ui.internal.Workbench.runUI（Workbench.java:2665）在 org.eclipse.ui.internal.Workbench.access $ 4（Workbench.java:2499）在 org.eclipse.ui.internal.Workbench $ 7.run（Workbench.java:679）在 org.eclipse.core.databinding.observable.Realm.runWithDefault（Realm.java:332）在 org.eclipse.ui.internal.Workbench.createAndRunWorkbench（Workbench.java:668）在 org.eclipse.ui.PlatformUI.createAndRunWorkbench（PlatformUI.java:149）在 org.eclipse.ui.internal.ide.application.IDEApplication.start（IDEApplication.java:123）在 org.eclipse.equinox.internal.app.EclipseAppHandle.run（EclipseAppHandle.java:196）在 org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) 在 org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start（EclipseAppLauncher.java:79）在 org.eclipse.core.runtime.adaptor.EclipseStarter.run（EclipseStarter.java:344）在 org.eclipse.core.runtime.adaptor.EclipseStarter.run（EclipseStarter.java:179）在sun.reflect.NativeMethodAccessorImpl.invoke0（本机方法）在 sun.reflect.NativeMethodAccessorImpl.invoke（来源不明）在 sun.reflect.DelegatingMethodAccessorImpl.invoke（来源不明）在 java.lang.reflect.Method.invoke（来源不明）在 org.eclipse.equinox.launcher.Main.invokeFramework（Main.java:622）在 org.eclipse.equinox.launcher.Main.basicRun（Main.java:577）在 org.eclipse.equinox.launcher.Main.run（Main.java:1410）在 org.eclipse.equinox.launcher.Main.main（Main.java:1386）

java.lang.UnsupportedOperationException: Unsupported Service: audio at com.android.layoutlib.bridge.android.BridgeContext.getSystemService(BridgeContext.java:434) at android.inputmethodservice.KeyboardView.(KeyboardView.java:376) at android.inputmethodservice.KeyboardView.(KeyboardView.java:279) at com.utterkaos.keyboard.LatinKeyboardView.(LatinKeyboardView.java:30) 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:402) at com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.loadView(ProjectCallback.java:166) at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:207) at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:135) at android.view.LayoutInflater.inflate(LayoutInflater.java:466) at android.view.LayoutInflater.inflate(LayoutInflater.java:372) at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:321) at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:324) 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:2945) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2850) at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2842) at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2793) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2789) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2773) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2764) 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:355) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:164) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:249) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:228) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:275) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerActionGroup.handleOpen(PackageExplorerActionGroup.java:376) at org.eclipse.jdt.internal.ui.packageview.PackageExplorerPart$4.open(PackageExplorerPart.java:538) at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:48) at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:866) 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:864) at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1152) at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1256) at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275) at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:269) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4165) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3754) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) 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:344) 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:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) at org.eclipse.equinox.launcher.Main.main(Main.java:1386)

LatinKeyboardView.java的相关部分是：

The relevant part of LatinKeyboardView.java is:

public class LatinKeyboardView extends KeyboardView {

    static final int KEYCODE_OPTIONS = -100;

    public LatinKeyboardView(Context context, AttributeSet attrs) {
        super(context, attrs);

}

第30行是超（背景下，ATTRS）;

Line 30 is "super(context, attrs);"

看着KeyboardView.java，行376：

Looking at KeyboardView.java, line 376:

mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);

下面Context.AUDIO_SERVICE似乎是字符串声音，它出现在错误堆栈跟踪。

Here "Context.AUDIO_SERVICE" appears to be the string "audio", which appears in the error stack trace.

BridgeContext.java的相关位是：

The relevant bit of BridgeContext.java is:

    public Object getSystemService(String service) {
414        if (LAYOUT_INFLATER_SERVICE.equals(service)) {
415            return mBridgeInflater;
416        }
417
418        if (TEXT_SERVICES_MANAGER_SERVICE.equals(service)) {
419            // we need to return a valid service to avoid NPE
420            return TextServicesManager.getInstance();
421        }
422
423        // AutoCompleteTextView and MultiAutoCompleteTextView want a window
424        // service. We don't have any but it's not worth an exception.
425        if (WINDOW_SERVICE.equals(service)) {
426            return null;
427        }
428
429        // needed by SearchView
430        if (INPUT_METHOD_SERVICE.equals(service)) {
431            return null;
432        }
433
434        throw new UnsupportedOperationException("Unsupported Service: " + service);
435    }

我觉得特别令人费解的这个程序是，我看不出它所能处理的声音的服务，但BridgeContext.java和KeyboardView.java是在Android code，而不是类这两部分我已经写不正确。

What I find particularly puzzling in this routine is that I don't see how it could ever handle the "audio" service, yet BridgeContext.java and KeyboardView.java are both part of the Android code, not classes I have written incorrectly.

任何指针，以帮助我理解为什么这个错误发生，以及如何避免这将是更AP preciated。

Any pointers to help me understand why this error is occurring and how to avoid it would be much appreciated.

Android的 - 不支持的服务：声音 [英] Android - Unsupported Service: audio

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Android的 - 不支持的服务：声音 [英] Android - Unsupported Service: audio

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